A metro's heating and cooling is a portrait of its building history under its weather, and Houma'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 Houma home was built in 1982; 48.0% of the stock predates 1980, and the pattern this metro's own data ranks first is humidity burden on homes and cooling 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.
Two numbers frame everything that follows: 75.8% of Houma homes are owner-occupied, and the median one was built in 1982. Ownership matters to HVAC because owners inherit their systems whole — every equipment decision a builder made in the 1980s or earlier is still in the attic, the closet and the side yard, ageing on its original schedule. With 48.0% of homes predating 1980 and 26.6% arriving since 2000, the metro is really two housing stocks sharing one map, and they are taken separately below before the problems are ranked.
The pre-1980 stock is where most of the metro's HVAC character lives. Homes from those decades in Lafourche Parish County and across Lafourche Parish, Terrebonne Parish were built with duct layouts from the first age of central systems, furnaces and condensers that have since been renewed piecemeal, and insulation standards from another era, and each of those choices is now at or beyond the age its makers expected of it. Owner-occupiers hold 75.8% of the metro's homes, so most of the people reading this page are reading about a system they own outright — one whose failures arrive as surprises only if nobody has looked at the pattern: cooling fading a little each summer, a furnace recovering a little more slowly, one room drifting a little further from the thermostat.
Uniformity is the newer stock's defining trait. A subdivision in Bayou Cane or Thibodaux 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 26.6% of the metro built since 2000, that calendar governs a large and growing share of Houma's HVAC work — predictable work, if a household reads the calendar early.
The climate written over all of it comes from the NOAA station at NEW ORLEANS AUDUBON, LA US: an average year brings 1,019 heating degree days, 3,518 cooling degree days and 64.6 inches of precipitation. Those are not abstractions to a furnace or a condenser — they set how many hours a heating system runs each winter, how hard a cooling system cycles in July, and how much moisture every coil has to pull out of the indoor air. The problem sections that follow are selected by exactly these numbers, combined with the housing-age profile above.
Two public records, one metro: what was built here, and what the sky does to it.
Lay the eras side by side instead: 17.2% pre-1960 (15,205 homes), 30.8% from 1960-1979 (27,227), 25.4% from 1980-1999 (22,454), and 26.6% since 2000 (23,514). No single era tells the story — the proportions among them do, and those proportions are different in every metro this site covers.
Between the old metros and the new ones sits this one, its centre of gravity in the 1960-1979 band — the decades when cooling spread mid-stream through housing built without it. The consequence is a housing stock that must be read house by house: added ducts beside original ones, new condensers on old furnaces, controls from three decades in one hallway. Houma's HVAC rewards the diagnostic visit more than most metros' do, because the street's average is a genuinely poor guide to the individual system.
The second-largest band is the newest: 23,514 homes built since 2000, 26.6% of the metro. Young stock writes young HVAC — condenser waves, control waves, the first heat pump questions — arriving street by street as uniform subdivisions age in lockstep around Bayou Cane and the growth edge. It is the metro's future workload, visible early to anyone reading the table.
A profile needs its climate column, and Houma's comes from NEW ORLEANS AUDUBON, LA US: an average year of 71.8 degrees, built from extremes at both ends. The heating load (1,019 degree days) and the cooling load (3,518) together set the system's working life; the precipitation total (64.6 inches) sets the moisture the cooling half must remove; the freeze count (3.7 nights) sets the stakes of every heating failure. Four numbers — and most of the metro's HVAC behaviour follows from them.
A profile is only useful if it predicts something, and this one predicts the shape of an HVAC diary in Houma: which streets will call about cooling, which about heating, which about airflow, and in which months. Everything after this section is that prediction written out as services, problems and answers — the numbers first, the narrative second, the way the evidence actually runs.
Listed in the order this metro's housing and climate data supports.
Tight houses need deliberate breathing. A ventilator exchanges stale air for fresh while recovering energy between the streams — the managed version of what leaky construction used to do by accident, with filtration on the intake.
Across Houma's 79,238 households, the air quality diary follows the building map. The tight new subdivisions near Bayou Cane ask about ventilation and the chemistry of new materials; the the 1980s districts ask about dust, infiltration and the crawl spaces under raised floors; the households in between ask about allergies in the pollen months. One service name, three different sciences — which is why the visit begins with questions about the house and the people in it, not with a product sheet. In Houma that holds across 22 ZIP codes, from Houma out to Thibodaux.
The local figures behind the service: 79,238 households, indoor humidity driven by 64.6 inches of yearly rain and long humid stretches, pollen seasons that load every return in Lafourche Parish County. The assessment measures a home against exactly that climate, not against a generic standard.
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.
Cooling failure in Houma is rarely random. It bunches on the first serious heat wave, again in the late-summer grind, and it concentrates where the equipment is oldest — the pre-1980 districts, 48.0% of the metro's housing — and where the newest subdivisions' identical units reach the same wear points in the same seasons. The technician who works these streets stocks the van for both patterns: the ageing system's slow decline and the young fleet's shared failures. It is why two Houma homes of the same age, on different streets, so often need the same visit in the same year.
The local caseload behind this service is written in the climate figures: 3,518 cooling degree days a year and 105.6 days at 90 or above, pressing on a cooling fleet whose oldest members serve the 42,432 pre-1980 homes — in Bayou Blue (11,218 residents) as much as in the oldest districts.
Across Lafourche Parish, Terrebonne Parish, the cleaning question is answered the same way — look inside first. From Houma out through the 22 ZIP codes covered, matted buildup and renovation debris make the case; a light film makes the case for waiting.
Across Lafourche Parish, Terrebonne Parish, the service record is the scarcest asset: with a median build year of 1982 across 88,400 homes, many systems around Houma have no documented history — and a first tune-up's baseline is what every later decision stands on.
With a median build year of 1982, many Houma systems are reaching replacement age together; the professional you are connected with inspects ducts and electrics across 22 ZIP codes before recommending equipment.
From Houma to Bayou Blue, a no-heat call through TempReach USA reaches a local professional whose visit includes the exchanger and venting checks that furnace work owes a Houma household.
Heating installation in Houma starts with a heat-loss calculation across Lafourche Parish, Terrebonne Parish: the independent local professional measures the home's loss, inspects ducts and venting, and quotes the full scope before work begins.
Across 22 ZIP codes and housing from a median build year of 1982, Houma heat pumps are specified and serviced from heat-loss figures and low-temperature performance data, not nominal tonnage.
From period homes near Houma to newer builds toward Bayou Blue, Houma's ductless projects serve the rooms central systems miss — additions, conversions and homes built without ductwork.
In Houma, the thermostat question splits by housing era: homes from around the median build year of 1982 often lack a common wire in the wall, while newer builds across the 22 covered ZIP codes usually carry one — the local professional checks the cable before choosing the control.
In Houma, emergency means weather-relative: 1,019 heating degree days put no-heat calls on a freezing clock each winter, while 3,518 cooling degree days make a dead system a health question each summer — the call center triages against both, using the hours shown on this page.
Houma's commercial buildings span every era around a median build year of 1982 — 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.
Ask where this metro's HVAC diary fills up and the answer is a short story: Humidity burden on homes and cooling systems first, the refrigerant transition reaching older systems close behind, and the services that answer them doing the bulk of the booked work. Everything else on the list above is the supporting cast — necessary, frequent enough, but not what Houma's housing stock, at its age and in its climate, principally demands. Read the service list as a weather report for the metro's systems and it stops looking like a catalogue.
Chosen by this metro's own housing and weather data — the same two records this whole page is built from.
Humidity announces itself politely before it announces itself seriously. The polite version, in a Houma home, is a feeling: sheets that seem damp, a bathroom mirror that clears slowly, a basement corner with a smell that returns every wet week. The serious version builds quietly behind it — moisture condensing inside wall cavities and duct runs, conditions that invite mold growth in the places nobody opens, wood and finishes swelling and moving with the seasons. Cooling equipment stands in the middle of this story as the home's main dehumidifier, whether or not it was chosen for the role. When the equipment is oversized for the house, its runs are short and its drying is poor; when airflow is wrong, the coil's drying suffers; when duct leaks pull in humid air from the crawl space, the system imports the very burden it is asked to remove.
Working a humidity complaint follows the water. The first measurements are indoor: relative humidity readings in several rooms, at several times, since a single reading at the thermostat flatters the story. The second look is at the equipment's drying setup — system size against the home's actual load, airflow across the coil, cycle length on a typical afternoon, and the condensate drain's condition and output. The third look is at the sources: crawl space or basement moisture, bathroom and kitchen exhausts that vent into attics instead of outdoors, plumbing weeping quietly somewhere, grade and gutters delivering rainwater to the foundation. Only then does the remedy conversation make sense, because each layer has its own remedy — equipment setup, dedicated dehumidification, ventilation correction, source control — and prescribing from one layer for a problem living in another is how humidity complaints survive multiple service visits.
The timing is the signature: humidity complaints in Houma peak in the wet, saturated stretches rather than the hottest dry ones — the pattern of a moisture load, not a temperature load, announcing itself through the same equipment.
It is worth saying plainly what the transition is not. It is not a mandate to replace working equipment, not a deadline after which older systems become unusable, and not a verdict on the many R-22 and early R-410A systems still cooling Houma homes adequately. Systems are retired by economics and condition, not by calendar. What the transition changes is the slope of those economics: each year, the older generation's refrigerant and parts grow scarcer while the machine itself grows older, so the repair-versus-replace crossing arrives a little earlier than the same failure would have suggested a decade ago. Honest service practice in this metro states that slope openly and lets the household's own numbers — the unit's age, its condition, its history — make the call. The refrigerant in the pipes has become a fact of the house, like its roof's age: not urgent every day, and unwise to leave unexamined.
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 Houma 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.
The climate loads the stakes: a leaking system in Houma underperforms through 105.6 days a year at 90 degrees or more at NEW ORLEANS AUDUBON, LA US, so the household pays the transition's toll twice — in refrigerant and in lost cooling — until the underlying decision is made.
Extreme heat does not ask an air conditioner to work a little harder; it changes the job entirely. In Houma, the record at NEW ORLEANS AUDUBON, LA US counts 105.6 days a year at 90 degrees or more, and on those days a system sized for an average afternoon runs from late morning to well past dark without a pause. Compressors heat-soak, capacitors weaken a fraction with every hard start, contactors pit and stick, and a refrigerant charge that was slightly low in spring becomes the reason the house will not pull down in July. The failure rarely arrives as a single broken part. It arrives as a system that has been spending its reserves for weeks: longer run times, a house that reaches the set point later each day, an outdoor unit that sounds strained at startup. By the time it stops outright, it has usually been reporting the strain for a while. A local technician reading that pattern checks the electrical wear items first, then charge and airflow, because heat-season failures in Lafourche Parish County follow the load, and the load is written in the climate record.
Households tend to judge a cooling system by its mildest day. On a mild day an overworked system still copes, still reaches the setting, still argues for another season. Judge it by its hottest week instead: the hours it ran without pausing, the afternoons the house drifted upward, the nights it needed to recover. In Houma, NEW ORLEANS AUDUBON, LA US keeps the honest record of that week — 105.6 days a year over 90 degrees is the examination the system actually sits. The homes that fare well in it are rarely the ones with the newest equipment; they are the ones whose owners believed the early chapters of the strain story — the lengthening runs, the fading afternoons — and had the wear items checked while the system was still arguing its case.
Count the demand the way the equipment experiences it: 3,518 cooling degree days a year, with the peak delivered in afternoons when the temperature difference the system must work against is at its widest. In that arithmetic, a marginal system is not unlucky — it is simply outnumbered.
Heat is not an event in Houma; it is a season, and a long one. The record at NEW ORLEANS AUDUBON, LA US counts 105.6 days a year at 90 degrees or more and 3,518 cooling degree days, which means the metro's air conditioners work their longest shifts exactly when the air they must reject heat into is at its hottest. The households that come through the season smoothly treat it as a campaign with a beginning: before the first serious heat, the outdoor coil is washed clear of the spring's debris, the filter is fresh, the condensate drain is proven clear, and the system is run long enough on a warm day to show how it behaves under load — startup, sound, the temperature it delivers at the registers. During the season, the checks are small and regular: the outdoor unit kept clear of growth and stored items, the filter watched monthly because a loaded filter in peak season throttles a system already at full stretch, and indoor temperatures read honestly — a house drifting upward through a hot afternoon is the system filing an early report, and answering it in June is a different errand from answering it in the season's hottest week.
The season loads Houma's systems the way its record at NEW ORLEANS AUDUBON, LA US says it will: 1,019 heating degree days against 3,518 cooling degree days in an average year, against a housing stock whose median build year is 1982. The households that read the season early — filters, drains, a system run before the extreme weeks — are the ones whose calls stay schedulable.
Look deeper and the humidity story in Houma is partly a story about how houses changed. Older homes here breathed loosely and dried by accident; their moisture escaped through the same leaks that admitted it. Modern weatherization tightened the envelope — correctly, for energy — but a tight house keeps its moisture as faithfully as it keeps its conditioned air, and the drying that used to happen by leakage must now happen by design. Many Houma homes sit between the two eras: partly tightened, partly original, with cooling equipment asked to mediate. Their humidity complaints are era complaints — the house was changed faster than its moisture plan was. The resolution is not to loosen the house again but to finish the design: deliberate ventilation, deliberate dehumidification, and a cooling cycle set up to dry. The metro's housing stock, read closely, is a museum of this transition, and its sticky rooms are the exhibits still awaiting their captions.
Strip the pattern down to its inputs and the ranking stops being mysterious: 79,238 households depending on systems installed across a median build year of 1982, in a climate that swings between 105.6 days of serious heat and 3.7 freezing nights. Whatever pattern a metro with those inputs manufactures most, it manufactures here — the lead position is less a title than a consequence, recalculated from the same public records any sceptic can check.
Experienced local practice starts with the simple certainties — the observations that take minutes and decide the most:
PROBLEM
SOLUTIONPopulation 32,760
Population 22,143
Population 15,792
Population 11,218
Population 10,517
Population 6,563
Population 6,052
Population 5,937
Population 5,524
Population 5,287
Population 5,157
Population 2,874
Also in the Houma metro: Chauvin (population 2,531), Lafourche Crossing (population 2,439).
The communities in the grid are not suburbs of the page; they are its subject as much as Houma is. Bayou Cane (22,143 residents) and Thibodaux (15,792) carry their own building decades, their own equipment generations and their own positions in the problem ranking's logic — a system under a Bayou Cane roof answers to the same data as one in the centre, but to a different era of it. Coverage here is defined by the ZIP list below; understanding is defined street by street, and this page's figures are the metro-wide version of a story each community tells in its own numbers.
Beyond the largest communities sit Bayou Blue (11,218), Raceland (10,517), Galliano (6,563), Schriever (6,052), Larose (5,937) — smaller places across Lafourche Parish, Terrebonne Parish, covered on the same terms. Their housing tends to be older on average than the big suburbs', and their calls follow the older patterns on this page. One routing covers them all: find your ZIP code below and the rest is a phone call.
Every metro has a first city and a supporting cast, and the census figures draw the billing plainly here: Houma first, with 32,760 residents; Bayou Cane second at 22,143; Thibodaux third at 15,792; then the long tail of smaller communities in the grid above. The billing matters less than the building dates — each of these places was fitted with heating and cooling in its own decade, by its own builders — but between them they account for nearly every housing era, equipment generation and failure pattern this page describes.
Administratively the metro is drawn from Lafourche Parish, Terrebonne Parish — 2 in all — with Lafourche Parish County at its centre. County lines do not change how a system runs, but they do shape the paperwork around the work: permits, inspections and code details are county and city business, which is one reason the professional who serves your street is a local one.
This page ends at the metro boundary, but the region does not: New Orleans, LA, Slidell, LA and Baton Rouge, LA 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.
Set Houma among its neighbours and the contrasts sharpen the profile: New Orleans, LA — metro population 970,849, median build year 1973 — sits 44 miles away; Slidell, LA (279,108, median 1995) 80 miles; Baton Rouge, LA (888,699, median 1989) 81 miles. Three different housing stocks under three nearby skies, which is why each keeps its own page and its own problem ranking rather than borrowing this one.
The stock has a shape as well as a size. Owners hold 75.8% of it and renters 24.2%, a split that decides who notices a comfort problem first and who arranges the repair. The generations split 1.8-to-one in favour of the pre-1980 homes. And the map divides into 14 named communities across Lafourche Parish, Terrebonne Parish, each carrying its era's share of the 88,400 housing units the Census counts here.
One line of Houma arithmetic — a median home 44 years old · 60,062 owner-occupied homes against 19,176 renter-occupied · 691 pre-1960 homes for every covered ZIP code · a heating-to-cooling degree-day ratio of 0.29 · 1,641 mm of rain in an average 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
One call connects you with an independent local heating and cooling professional serving Houma and the surrounding metro.
Call center hours: Mon-Fri 7:00 AM-10:00 PM ET | Sat 8:00 AM-10:00 PM ET | Sun 7:00 AM-9:00 PM ET