One county, read on its own ground: Ontario County, New York — 2 communities, 19 ZIP codes, 4 neighbouring counties, inside the Rochester metro. TempReach USA connects you with an independent local HVAC technician serving the county, and this page is the homework behind the connection.
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In brief: 644 square miles of New York, a climate read from ROCHESTER GTR INTL AP, NY US's normals, and a heating pressure as the county's dominant one — 6,273 heating degree days set against 677 cooling degree days in an average year. TempReach USA does not do the work itself; it is a referral service, and one call connects you with an independent local HVAC technician serving Ontario County.
Before the narrative, the numbers themselves, because everything after them is commentary: at ROCHESTER GTR INTL AP, NY US, the station whose NOAA 1991-2020 normals this county is read through, an average year holds 8.3 days at 90 degrees or above, 128.8 nights at or below freezing, 35.09 inches of precipitation and degree-day totals of 6,273 heating against 677 cooling. Spread over 644 square miles, with the county's centroid southeast of the Rochester metro's centre and roughly 22 miles from the centre it is measured against, that record is Ontario County's working climate.
The heating season also has an address pattern in Ontario County. Its 19 ZIP codes divide 644 square miles into service ground where the same January night lands on older streets, subdivisions and edge communities at once, and the county's position — southeast of the Rochester metro's centre, roughly 22 miles from the metro's centre — shapes which parts of the county feel the Rochester metro's cold at full strength. The systems answer accordingly: one long heating season, read ZIP by ZIP, with the oldest furnaces and heat exchangers carrying the heaviest share of it.
The county's neighbours frame it as well: Livingston County, Monroe County, Orleans County are among the 4 counties on its neighbour list, and together they form the working ground around Ontario County's own 644 square miles. A system near a shared border lives in both counties' weather at once, whichever page describes its home — the pages divide the map so the record can be read county by county, and the links between them keep the whole in view.
The ZIP list is the county's working map. Ontario County carries 19 codes, running from 14424 through 14475 in the middle of the list to 14585 at its end, and every code on it is a small housing census of its own — the building decades, the system generations, the duct materials of its streets. Heating and cooling work routed by those codes meets the county in slices, and the slices differ more than the county's shared climate record would suggest.
Read the map around Ontario County and a working region appears: Livingston County, Monroe County, Orleans County, Wayne County are the neighbouring names at the head of its list of 4, and together these counties form the ground a local technician actually covers. The county line decides which page describes a home; it does not decide the weather the home's system faces, the decade its street was built in, or the season its diary fills. Those are regional — and the region, on this site, is a set of county pages that link to one another, as the cards below do.
The precipitation figure earns its place in Ontario County's record: 35.09 inches a year at ROCHESTER GTR INTL AP, NY US, falling through both the cooling months and the heating ones. Rain loads condensate systems in summer, tests outdoor units and venting in winter, and keeps the ground around the county's 19 ZIP codes cycling between wet and dry in a way that shows up in crawl spaces and condensate lines. Set beside 8.3 hot days and 128.8 freezing nights, it completes the picture of what the county's equipment actually lives in.
Read Ontario County through its record and two facts stand together: its named communities are Geneva, Canandaigua, and its land runs to 644 square miles. Between those facts sits the county's real housing — homes in the named places, homes along the roads the record does not name, all of them heating and cooling under the climate recorded at ROCHESTER GTR INTL AP, NY US. This page keeps both facts in view, because a county page that only described its named places would miss most of the county it is about.
The housing behind Ontario County's systems is the Rochester metro's housing, read at county scale. The largest single share of the metro's homes was built before 1960 — 43.2% of the stock — with 67.8% of homes predating 1980 and 12.3% arriving since 2000, around a median build year of 1966. Inside the county those eras divide by community and by street, but the proportions set the diary: a stock weighted to before 1960 produces the service patterns of that era's systems, ducts and insulation, in this county as across the metro.
Coverage, for Ontario County, is a set of overlapping maps. The land map is 644 square miles. The address map is 19 ZIP codes and 2 listed communities. The service map is the Rochester metro, whose coverage the county sits inside — southeast of the Rochester metro's centre, roughly 22 miles from its centre. The weather map is one station's record, kept at ROCHESTER GTR INTL AP, NY US. A home in this county lives on all four maps at once, and its heating and cooling needs are set by the combination.
City pages carry the metro-wide homework — housing eras, the problem ranking, services in depth. This county sits inside their coverage.
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TempReach USA is not an HVAC company. We employ no heating or cooling technicians, we run no service trucks, and we do not carry out HVAC work of any kind. This website and its call center exist for one purpose: to connect homeowners with independent local heating and cooling professionals who serve their area. When you call the number on this site, your call is routed to such a professional. From that point, everything about the job belongs to that professional and to you: the assessment, the work itself, the scheduling, what you are charged, and the terms of any agreement you reach. The professional who takes your job is solely responsible for it. The technician who arrives at your home runs their own business; they are not an employee, agent or subcontractor of TempReach USA. Our part is the information on these pages — assembled from Census Bureau housing data and NOAA climate records for each metro — and the routing of your call. We state this plainly on purpose: you should know exactly who you are hiring before anyone picks up a wrench or a gauge.
One call connects you with an independent local heating and cooling professional serving Ontario County and the Rochester 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