A metro's heating and cooling is a portrait of its building history under its weather, and Denver's portrait is painted below from its own records: Census housing figures, NOAA climate normals, the metro's ZIP codes and communities. TempReach USA's role is the connection to a local professional; the portrait is here so that connection starts from understanding rather than urgency.
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The median Denver home was built in 1986; 42.1% of the stock predates 1980, and the pattern this metro's own data ranks first is the refrigerant transition reaching older systems. TempReach USA is a referral service, not an HVAC company: one call connects you with an independent local HVAC technician serving your ZIP code.
Read Denver through its counties and the picture sharpens. Adams, Arapahoe, Broomfield, Clear Creek, Denver, Douglas, Elbert, Gilpin, Jefferson, Park were not built in the same decades or for the same households, and their heating and cooling carries those differences: an older core where 17.1% of the metro's homes predate 1960, growth corridors where the subdivisions arrived in waves, and edges still being built out. The metro-wide medians — a middle home built in 1986, 1,268,353 housing units in all — are the average of those local stories, and the sections below are organised by the patterns the combined record produces, from the oldest equipment generations to the newest failure modes.
There is an equipment timeline buried in Denver's housing figures, and it reads like a technician's diary. The 216,888 homes from before 1960 were heated first and cooled later, their ducts added around floor plans that never imagined them. The 317,088 that followed between 1960 and 1979 mixed those retrofits with the first planned central systems. Then came the 346,260 homes of 1980-1999, fitted with matched systems as standard. Each band of that timeline is now a band of characteristic failures, arriving in the order the equipment tires — which is why a home's build year, in this metro, is the single most predictive fact about its heating and cooling.
Uniformity is the newer stock's defining trait. A subdivision in Aurora or Lakewood went up in a handful of years, fitted with one generation of equipment, one duct design, one thermostat class. That uniformity writes a calendar the whole street shares: the first heating wave, the first cooling wave, the first questions about refrigerant and charge arrive together, years before the same streets need anything structural. With 30.6% of the metro built since 2000, that calendar governs a large and growing share of Denver's HVAC work — predictable work, if a household reads the calendar early.
One more record sits over the whole metro, and it is the one the equipment itself keeps: the weather's. DENVER CENTENNIAL AP, CO US logs 15.02 inches of precipitation in an average year and swings between 31.7 days at 90 degrees or more and 154.7 nights at or below freezing. Heating systems ride that swing in their run hours; cooling systems ride it in their cycle counts; ducts ride it in the attics, expanding and contracting between the seasons. Cross the swing with the housing ages above and the selection of problems further down this page stops looking like a list and starts looking like an arithmetic result.
Housing eras and climate, joined — the two datasets every section of this page is built from.
Lay the eras side by side instead: 17.1% pre-1960 (216,888 homes), 25.0% from 1960-1979 (317,088), 27.3% from 1980-1999 (346,260), and 30.6% since 2000 (388,116). No single era tells the story — the proportions among them do, and those proportions are different in every metro this site covers.
A metro that mostly built itself after 2000 has HVAC with a distinctive trait: uniformity. The same subdivisions, the same system designs, the same installation years — and therefore the same maintenance waves, arriving at the same streets in the same seasons. Denver's older pockets still produce the deepest individual jobs, but the volume lives in the new stock: condensers cycling together, thermostats ageing together, heat pump questions surfacing together. Reading those waves early is most of what local knowledge means here.
Second in the table, the 1980-1999 band: 346,260 homes, 27.3% of the metro. Its systems are mature rather than ancient — ducts still sound, first-generation efficiency equipment wearing toward its verdicts, controls reaching their wear points in waves — and its HVAC is the schedulable kind: work that rewards being booked before it becomes urgent.
Denver's weather, reduced to what a system experiences: 31.7 hot days a year loading the cooling, 154.7 freezing nights loading the heating, and 15.02 inches of rain feeding the humidity both seasons complain about. NOAA's normals at DENVER CENTENNIAL AP, CO US — 6,014 heating degree days, 636 cooling degree days — are the long average of that experience, and they are why this metro's problem list is not interchangeable with a milder or harsher metro's.
That is the whole method of this page in one section: era shares from the Census, loads from NOAA, and a problem list that is simply where the two overlap most in Denver. The services and guidance that follow are ordered by the same profile — local first, generic last.
Chosen by this metro's own housing and weather data — the same two records this whole page is built from.
Leaks are where the transition stops being abstract. A slow leak on a current-generation system is an ordinary repair story: find it, fix it, recharge. The same leak on an R-22 system in Denver opens a ledger. The refrigerant itself is drawn from a shrinking reclaimed supply; the system is, by definition, of an age where the leak may not be its last; and the money spent returning it to service buys time on a machine whose other components have aged alongside it. None of that decides the answer by itself — plenty of R-22 systems justify a repair and serve well afterward — but it changes the questions: how old is the unit, where is the leak, what else is worn, and what would the same money mean applied to a current-generation replacement? Households that ask those four questions with the numbers in front of them make the decision once; households that skip them often make it repeatedly, one hot season at a time.
A transition-aware service visit has a recognizable order. First, identification: the nameplate's refrigerant, model and year, stated aloud so the household and technician share the fact. Second, the leak question, taken seriously — a system low on charge has a leak until proven otherwise, and recharging without finding it is buying the same refrigerant twice on an installment plan. Third, the condition audit around the failure: compressor health, coil condition, electrical wear, because the decision the household faces is about the whole machine, not the one part that stopped. Fourth, the comparison itself, presented as what it is — the repair path with its realistic horizon, the replacement path with its — so the choice is made on the machine's merits and the household's plans for the home. In Denver that conversation, held in a calm season, is unhurried and genuinely optional-feeling; held in a heat wave, the same facts arrive wearing a deadline.
Count the generations the way a technician's route does: a single Denver street can hold an R-22 veteran, two R-410A systems and a current-generation installation within a few doors. The service records of one metro contain the whole transition — which is why identification, not assumption, opens every diagnosis here.
A heating failure in mild weather is an appointment. The same failure in a hard freeze is a countdown, because a house without heat in Denver's coldest weather is losing temperature toward the point where its plumbing becomes the next casualty. The record at DENVER CENTENNIAL AP, CO US — 154.7 nights a year at or below freezing and 6,014 heating degree days across the season — says the exposure is not hypothetical here. As indoor temperature falls, the spaces that go first are the ones the heat reached last: pipes in exterior walls, runs through crawl spaces and garages, the plumbing of additions and rooms over unheated ground. A burst pipe discovered at the thaw converts one breakdown into two trades' worth of damage, which is why freeze-season heating calls run on different logic from every other call of the year: restore heat or protect the house, in that order, with no step treated as routine. Knowing the sequence before the night it is needed — how to keep a house safer while help travels, when to drip taps, when to shut water down — is part of owning a heated home in this climate.
A freeze-call diagnosis runs triage first and depth second. The first questions sort the stop into its great families: no power or no call for heat; a safety lockout reporting itself through the board's codes; a fuel or ignition failure; a condensate or venting stop on high-efficiency equipment; a heat pump standing on failed auxiliary heat. Each family has a different restoration path and a different implication for how long the house will be cold. In the same visit, the freeze-specific checks ride along: the condensate drain's exposed run, the intake and exhaust terminations against snow and ice, the state of the spaces the pipes cross. Where restoration will take time, the professional's advice turns to the house itself — which water to shut, which taps to open, which rooms to close off and consolidate warmth in — because in a freeze the building is the second patient, and its treatment window is shorter than the equipment's.
The climate record is the whole brief: 154.7 nights a year at or below freezing and 6,014 heating degree days at DENVER CENTENNIAL AP, CO US. In Denver, a heating failure is never only a heating failure in those weeks — it is a timed exposure for every pipe the heat was guarding, and the record brings the test back annually.
Ask a furnace what hard cold does to it and it answers in cycles. Every call for heat is a sequence — inducer, igniter, gas valve, flame proving, blower — and deep cold multiplies the sequences while lengthening each run. In Denver the oldest furnaces run that sequence in the oldest housing: the 533,977 pre-1980 homes across the metro, whose flues, ductwork and clearances were built for earlier generations of equipment. A replacement furnace in such a home inherits the harder half of the installation — the venting and duct conditions — while the furnace being retired often shows the season's wear in its heat exchanger and its ignition train. Reading that wear correctly, rather than replacing parts one failure at a time, is the judgment the cold season asks of both homeowner and technician.
Judge a furnace by its coldest week, not its kindest. In its coldest week a Denver furnace shows its true condition: whether it lights first time every time, whether it holds the house through the night without the temperature sagging, whether its sounds are the sounds it made when it was younger. DENVER CENTENNIAL AP, CO US's record — 154.7 freezing nights in an average year — makes the examination annual and unsparing. Households that come through it without drama have usually done one unglamorous thing: they treated the autumn symptoms as the season's advance copy. A furnace rarely fails without having filed its intentions first, in a slower start, a louder cycle, a room that stopped keeping up. The winter merely publishes what the furnace had already written.
The climate record is the prosecution's whole case: 6,014 heating degree days and 154.7 nights at or below freezing at DENVER CENTENNIAL AP, CO US in an average year. A furnace in Denver is not occasionally cold-weather equipment; it is a machine audited by winter, annually, at full load.
Returns deserve as much suspicion as supplies. A leaking supply loses conditioned air; a leaking return recruits unconditioned air — hot attic air in summer, cold crawl-space air in winter, and with it the dust and moisture of whichever space it crossed. In Denver's older housing, returns are often the rougher half of the network: panned joist spaces, wall cavities pressed into service, connections made to a standard the era allowed. The symptoms point back confusingly — a system that seems to stir dust, rooms that smell of the attic in summer, humidity the air conditioner cannot quite pull down. A duct assessment that only walks the supply side reads half the network. The returns are where the house breathes in, and a home whose returns breathe from its attic will never quite feel the way the equipment's specifications intend.
Read a duct system the way a technician does and the examination has a shape: start at the air handler and work outward. At the plenum, connections are inspected where they are most stressed and most consequential. Along the runs, the checks are for the known failure family — separated joints, fallen insulation, sagging flex, crushed sections, takeoffs that were sealed with hope rather than mastic. At the registers, temperatures and airflow are compared room by room, and the map of strong and weak rooms is laid over the map of the runs themselves; the two maps explain each other with remarkable consistency. Returns get the same walk, with attention to panned cavities and any path that lets the system breathe from outside the envelope. Cleaning belongs in this picture where the inspection finds accumulation — but cleaning a leaking network without sealing it polishes the inside of a system that is losing its cargo through the walls.
The load figures complete the case: 636 cooling degree days and 6,014 heating degree days at DENVER CENTENNIAL AP, CO US mean the network is in service in earnest at both ends of the year. Duct loss here is not a summer inefficiency or a winter one; it is a twelve-month tax on a system that works both seasons.
Every heating and cooling system ages, but in Denver the ageing is concentrated where the housing is. The Census profile behind this page records 42.1% of homes built before 1980 and a median build year of 1986, which means a large share of the metro's furnaces, air conditioners and heat pumps are working in homes that have already outlived one or two generations of equipment — and much of the current generation is itself well into its second decade. Age shows differently than breakdown. An older system loses capacity a little at a time: refrigerant circuits seep at joints that have vibrated for years, blower motors draw more to move the same air, heat exchangers carry scale and rust, and control boards soldier on with components that drift out of tolerance. The household experiences it as a thermostat that needs a lower setting than it used to, rooms that lag, and a system that runs longer to do less. Nothing has failed; everything has faded, and the maintenance question becomes an honest one: what is left in this machine, and what does it need to give it back?
Judge an ageing system by its trend line, never by its kindest day. On its kindest day — mild weather, light load — almost any system in Denver can still argue for itself. The trend line is written elsewhere: in run times lengthening season over season, in the setting creeping to hold the same comfort, in the rooms that quietly dropped out of the system's reach. DENVER CENTENNIAL AP, CO US's climate record ensures the trend will be tested at both ends of the year — 31.7 hot days and 154.7 freezing nights in an average year. The households that read their trend early choose the terms of the ending, whether that ending is a renewed component, a planned replacement in a shoulder season, or a few more good years bought with honest maintenance. The households that wait for the system's verdict receive it in the weather least suited to hearing it.
Climate presses the point. A system in Denver works both ends of the year — 6,014 heating degree days against 636 cooling degree days at DENVER CENTENNIAL AP, CO US — so its components accumulate in twelve months the wear a single-season climate would spread over two years.
Winter in Denver is heating season in earnest. With 6,014 heating degree days and 154.7 nights a year at or below freezing on the record at DENVER CENTENNIAL AP, CO US, the furnaces and heat pumps here are not occasional equipment — they are the household's winter infrastructure, and the season examines them accordingly. The preparation belongs to autumn: the heating system run and proven before the first hard cold, its ignition and safety chain observed through a full cycle, the filter renewed, vents and intakes checked where snow and ice will later reach them, and the household's own knowledge refreshed — where the system switch is, where the water main closes, what the house's plan is if heat stops on the coldest night rather than a mild one. During the season the rhythm is watchfulness: startup sounds that change, rooms that begin to fall behind, lockouts that recover but recur — each is the system filing its report early, and in deep cold the gap between an early report answered and a failure collected is the whole difference between an appointment and an emergency with the plumbing on a countdown behind it.
The season loads Denver's systems the way its record at DENVER CENTENNIAL AP, CO US says it will: 6,014 heating degree days against 636 cooling degree days in an average year, against a housing stock whose median build year is 1986. The households that read the season early — filters, drains, a system run before the extreme weeks — are the ones whose calls stay schedulable.
In Denver the transition's map is the housing map, lagged by one equipment generation. The districts built around Denver and the the 1980s streets hold the metro's R-22 veterans, in homes that have already seen one full cycle of this story when the equipment before them was young. The middle suburbs hold the R-410A majority. The 388,116 homes built since 2000 carry early current-generation systems now reaching the age where their first major repairs will be quoted — into a market whose standard has already moved on again. Read as a whole, the metro's 1,268,353 housing units contain the refrigerant industry's last several decades standing in rows, and the service economy of the metro is, in part, the business of keeping all those decades running at once. The deep pattern for a homeowner is simple to state and slow to change: your system's generation is a property of your street's building era, and its implications were installed with the house.
Read the ranking backwards and it reads as a data summary: 2,977,085 residents in 1,268,353 housing units, 17.1% of the housing from before 1960, 15.02 inches of rain in an average year. The pattern leads because the exposure is broad — counted not in individual unlucky houses but in whole eras of the metro's building, stacked one on another.
Experienced local practice starts with the simple certainties — the observations that take minutes and decide the most:
Listed in the order this metro's housing and climate data supports.
The local professional you are connected with reads the system the way it fails: electrical values first, then temperatures and pressures, then airflow, until one finding explains all of the symptoms at once.
Air conditioning in Denver works against the local calendar: 636 cooling degree days a year at DENVER CENTENNIAL AP, CO US, with 31.7 days at 90 degrees or more. The failures follow that load — capacitors and contactors worn by relentless summer cycling, refrigerant charges drifting low on systems that have served a decade of heat, condensate drains clogging in the humid weeks. The older districts run the oldest condensers; the subdivisions around Denver run matched fleets installed in the same seasons, and both sides of the metro meet the repair call on the hottest week of the year. From Aurora to Lakewood, the pattern repeats wherever the housing era matches.
The local caseload behind this service is written in the climate figures: 636 cooling degree days a year and 31.7 days at 90 or above, pressing on a cooling fleet whose oldest members serve the 533,977 pre-1980 homes — in Aurora (390,201 residents) as much as in the oldest districts.
One local habit worth copying: Denver homeowners who mention their street's building era when they book get a better-matched visit, because a technician heading to a the 1980s home in Adams County loads different parts than one heading to a new-build subdivision in Aurora. The service is the same; the preparation is local.
Safety outranks repair, always. A gas smell or a carbon monoxide alarm means leaving the house and calling the utility or emergency services first — the repair visit comes after the house is safe to be in.
Preparation is the quiet half of emergency work in Denver, and it is written in the metro's figures: a housing stock of 1,268,353 units, median vintage 1986, spread over 137 ZIP codes, will produce its no-heat and no-cooling nights on a schedule the climate roughly predicts. The households that come through those nights with the least damage are rarely the lucky ones; they are the ones who know where the system's shutoffs and breakers are, keep the number where it can be found, and treat the system's small warnings — the odd noise, the short cycle, the room that drifts — as the appointments they were. The DENVER CENTENNIAL AP, CO US record — 6,014 heating degree days, 636 cooling — is the backdrop Adams County technicians plan around.
The emergency caseload is written in the extremes: 31.7 days of serious heat and 154.7 freezing nights a year, against systems whose median home was built in 1986. In Thornton as across the metro, the urgent calls arrive when the weather and the equipment's age meet.
Where this service gets booked in Denver follows the map on this page: the older districts generate the deep-end work, the post-2000 subdivisions the wear-and-tear work, and the 346,260 homes in between split the difference. Telling the call center your home's build decade — most Denver owners know it within a few years — puts the right kit on the van the first time.
Heat exchanger condition is the line in furnace work: sound, and most faults are repairs; cracked or corroded, and the conversation in any Denver home becomes safety and replacement, plainly explained.
Furnace work in Denver is set by 6,014 heating degree days a year at DENVER CENTENNIAL AP, CO US and 154.7 nights at or below freezing. The failures the season produces are the working parts wearing in sequence: igniters that have fired ten thousand times, blower motors tired from two seasons a year of duty — heating in winter, air handling in summer — heat exchangers stressed by decades of expansion and contraction. In the older districts, where 42.1% of the metro's homes predate 1980, many furnaces are replacements of replacements, fitted into ductwork older than the equipment itself. With a median build year of 1986, most of the metro's 1,268,353 housing units are working through the same ageing curve.
Heating demand in Denver concentrates where the cold does its work: 154.7 nights a year at or below freezing, against a housing stock whose median build year is 1986. Around Westminster as in the old core, that combination is not an abstraction — it is the street's furnaces, house by house.
In Denver this service is booked most often through the problem patterns at the top of this page — the metro's housing data, not habit, sets the order. If your home is in the 42.1% built before 1980, mention its age on the call: it changes the parts the technician loads before heading to Denver and the rest of the metro.
Verification is part of the service: a camera view, an opened panel, a register you can inspect yourself. The point of the visit is a duct system you have seen clean, not one you have been told is clean.
Duct cleaning in Denver is booked in waves that follow the housing: after the renovation seasons in the older districts, at move-in across the subdivisions, alongside system replacements everywhere. The work pairs naturally with the inspection that surrounds it — leaking joints found and sealed, a disconnected run in an attic discovered, insulation fallen where it should not be. The cleaning is the appointment; the findings are often the value. In Denver that holds across 137 ZIP codes, from Denver out to Lakewood.
Count the systems and the diary fills itself: 1,201,206 households breathing through ductwork daily, the oldest of it in homes from the 1980s and the newest in the subdivisions past Highlands Ranch. What the cleaning finds follows the biography — dust in proportion to years, debris in proportion to renovations.
In Denver this service is booked most often through the problem patterns at the top of this page — the metro's housing data, not habit, sets the order. If your home is in the 42.1% built before 1980, mention its age on the call: it changes the parts the technician loads before heading to Denver and the rest of the metro.
The failures maintenance interrupts are unglamorous and specific — a condensate drain weeks from flooding, a capacitor drifting out of range, charge seeping from a joint. Each is a small job in spring and a breakdown in July.
Maintenance also has a paperwork virtue in Denver: the recorded visit. Readings dated season by season — refrigerant pressures, temperature splits, capacitor values, the exchanger's noted condition — turn a system's decline from a surprise into a schedule. Households across Adams, Arapahoe, Broomfield, Clear Creek, Denver, Douglas, Elbert, Gilpin, Jefferson, Park who keep those records meet replacements as appointments, and the technicians who write them are leaving the next visit, whoever makes it, a map of the system's life. In a metro of this size, that map is most of what local knowledge means. It is why two Denver homes of the same age, on different streets, so often need the same visit in the same year.
The maintenance caseload is the installed base itself: 1,268,353 housing units whose systems each face 31.7 hot days and 154.7 freezing nights a year. Around Broomfield (75,110 residents) as in the old core, the twice-yearly visit is what stands between that calendar and the emergency diary.
In Denver this service is booked most often through the problem patterns at the top of this page — the metro's housing data, not habit, sets the order. If your home is in the 42.1% built before 1980, mention its age on the call: it changes the parts the technician loads before heading to Denver and the rest of the metro.
From Denver to Thornton, Denver replacements routed through TempReach USA end in commissioning — measured charge and airflow — so the installed system matches the calculated one.
Heating installation in Denver starts with a heat-loss calculation across Adams, Arapahoe, Broomfield, Clear Creek, Denver, Douglas, Elbert, Gilpin, Jefferson, Park: the independent local professional measures the home's loss, inspects ducts and venting, and quotes the full scope before work begins.
From Denver to Thornton, Denver heat pump calls through TempReach USA reach a local professional who explains findings plainly and quotes after assessing — in the heating season and the cooling season alike.
From period homes near Denver to newer builds toward Thornton, Denver's ductless projects serve the rooms central systems miss — additions, conversions and homes built without ductwork.
In Denver, air work follows the climate ledger: 6,014 heating degree days dry the indoor air out each winter while 636 cooling degree days load it with humidity each summer — most homes here need the humidity answer in both directions across the year.
Across Adams, Arapahoe, Broomfield, Clear Creek, Denver, Douglas, Elbert, Gilpin, Jefferson, Park, one climate fact shapes the configuration: 6,014 heating degree days against 636 cooling degree days tells whether the control's year is mostly a heating story, mostly a cooling story, or a genuine heat pump balancing act.
Denver's commercial buildings span every era around a median build year of 1986 — and with the era goes the equipment, from aging single units over old storefronts to multi-zone systems in new developments, all serviced from a per-unit record.
If this page's services were ranked by Denver's call patterns rather than listed in catalogue order, they would come out much as they do here — because the ranking behind them is data, not habit. The refrigerant transition reaching older systems leads the metro's problem table and heating failure risk when temperatures freeze follows, so the services answering them lead the list. The long tail of a metro's HVAC life — thermostat calls, duct questions, the one room that never matches the rest — fills in the diary around them, here as everywhere.
PROBLEM
SOLUTIONPopulation 713,734
Population 390,201
Population 156,309
Population 142,878
Population 122,835
Population 115,546
Population 107,386
Population 101,437
Population 76,614
Population 75,110
Population 64,640
Population 60,115
Also in the Denver metro: Littleton (population 45,092), Brighton (population 41,196).
Read the grid as a building programme spread over a century. The oldest communities sit where the metro began; the youngest are still adding streets at its edge; and Aurora and Lakewood, with 390,201 and 156,309 residents, stand for the rings in between. Each ring was fitted in its era's equipment, and each is now failing, wearing or holding in its era's characteristic order. The ZIP codes below draw the coverage boundary; the eras inside it draw everything else on this page — the problems ranked, the services ordered, the checks advised.
Also on the Denver map: Thornton (142,878), Arvada (122,835), Westminster (115,546), Centennial (107,386), Highlands Ranch (101,437) — communities spread across Adams, Arapahoe, Broomfield, Clear Creek, Denver, Douglas, Elbert, Gilpin, Jefferson, Park, each with housing from its own growth years. A technician routed through TempReach USA to any of them is working from this same page: the metro data does not change at the city limit, but the housing on your street — its age, its equipment, its attic — is what the visit is really about.
Denver (713,734 residents) anchors the metro, and Aurora (390,201) is its second centre of gravity. Between them they hold the bulk of the 1,201,206 households — and, not coincidentally, the bulk of every housing era this page discusses, from the pre-1960 core to the newest subdivisions. Lakewood (156,309) and the communities beyond it repeat the same eras at smaller scale.
Draw the metro by its paperwork and it resolves into Adams, Arapahoe, Broomfield, Clear Creek, Denver, Douglas, Elbert, Gilpin, Jefferson, Park — 10 jurisdictions sharing one housing stock and one weather system. Adams County holds the historic centre and the densest share of the older homes; the surrounding counties hold the rings of growth around it. Permits and inspections follow those boundaries even though temperature never does, which is part of why the technician this page connects you to works these streets specifically.
This page ends at the metro boundary, but the region does not: Boulder, CO, Colorado Springs, CO and Greeley, CO continue the coverage in their own directions, each with a profile built from its own Census and NOAA figures. If your home sits near the line between metros, go by your ZIP code — it places you in the dataset that describes your housing.
The region around Denver is a set of variations on its theme: Boulder, CO, 40 miles off, runs a median build year of 1986 on a metro population of 328,560; Colorado Springs, CO (53 miles) medians 1988 on 781,796; Greeley, CO (72 miles) medians 2000 on 378,426. Nearness is not sameness — a few decades of median build year separate their heating and cooling as surely as the miles separate their maps.
Divide the stock by the map and the densities appear: roughly 9,258 housing units for every covered ZIP code, 120,121 households to a county, 14 named communities in the grid. The balance between the generations reads 1.4 pre-1980 homes for every home built since 2000 — a single ratio that quietly predicts whether a metro's HVAC week leans toward renewal work in the old districts or first-generation upkeep in the new ones.
The Denver record in one line — median home age: 40 years · owner-occupied homes: 772,375 · renter-occupied homes: 428,831 · pre-1960 homes per covered ZIP code: 1,583 · heating-to-cooling degree-day ratio: 9.45 · average rainfall: 382 mm a year.
County pages carry the local detail — land area, climate normals and the heating and cooling pressures on the ground in each county.
More plain-language help: the TempReach USA heating & cooling guides
Describe the problem and the call center routes you to an independent local HVAC technician who works in the Denver metro.
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