The county-level homework for York County, Maine — its 991 square miles, its 36 ZIP codes, its place inside the Portland metro's coverage. TempReach USA connects homeowners here with independent local HVAC technicians; the record behind the routing is on this page.
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York County in one paragraph: 991 square miles in Maine, 36 ZIP codes, a heating climate pressure read from the normals at PORTLAND INTL JETPORT, ME US, and housing that answers 6,795 heating degree days against 447 cooling degree days a year. TempReach USA is a referral service, not an HVAC company — one call connects you with an independent local HVAC technician serving this county.
Before the narrative, the numbers themselves, because everything after them is commentary: at PORTLAND INTL JETPORT, ME US, the station whose NOAA 1991-2020 normals this county is read through, an average year holds 5.1 days at 90 degrees or above, 144.1 nights at or below freezing, 48.12 inches of precipitation and degree-day totals of 6,795 heating against 447 cooling. Spread over 991 square miles, with the county's centroid southwest of the Portland metro's centre and roughly 28 miles from the centre it is measured against, that record is York County's working climate.
York County is heating country by the numbers: 6,795 heating degree days a year, 144.1 freezing nights, and homes spread over 991 square miles all asking their systems the same question on the same January night. The cooling half of the equipment matters — 447 cooling degree days is not nothing — but it is the heating load that decides which systems fail, and when. Local technicians read the county that way: autumn tune-ups, honest conversations about ageing furnaces and heat exchangers, and vans stocked for the cold weeks.
One more county fact belongs in the record: position. York County sits at 43.426019, -70.668425 on the map — the centroid of a county whose communities spread across 991 square miles of Maine. Position decides which end of the metro's weather arrives first and which of its service patterns a household here meets most; the rest of this page is that position, read through the climate record and the metro's data.
Routing in York County is written in five digits. The county's codes begin at 03901 and run to 04095, 36 in total, and between the first and the last sits the county's full spread of ground — 991 square miles from the metro-facing edge to the far side. A technician's week here is a tour of those codes, and the tour is also a tour of the county's building history, because each code's systems were largely fitted when that code's streets were built.
Position first: York County lies southwest of the Portland metro's centre, roughly 28 miles from the metro's centre as the map measures it, with Cumberland County, Sagadahoc County among the counties around it. Neighbourhood at county scale matters to heating and cooling because systems do not respect the border — the same subdivisions' building decades continue across it, the same cold snaps and heat waves examine both sides in the same night — while each county's page, this one included, keeps the local figures distinct.
A year in York County, counted the way a technician counts it, is not twelve months but two workloads and the weeks between them. The first workload is written as 447 cooling degree days, the second as 6,795 heating degree days; 48.12 inches of precipitation fall across both, and the average temperature of 47.5 degrees is simply the figure the two workloads leave behind when they are averaged. The county's heating pressure is whichever workload the count puts first — and the maintenance year is arranged around that ordering.
The county's place list tells its own story. Biddeford (22,463 residents) is the largest of the 5 communities the record names for York County, with Sanford (22,095 residents) behind it and Saco and Old Orchard Beach further down the list. A technician working this county works all of those places in a single week, and the systems change character with the address: the era a community was built in decides whether the call is about an ageing furnace, a condenser at the end of its summers, or ductwork that predates the equipment it now serves.
Age is the county's second climate. The Portland metro's median home was built in 1977, and 53.8% of its homes predate 1980 — in York County, that share is the older districts and the long-settled communities, where ductwork from an earlier equipment era still serves replacement systems. The newer share, 21.0% built since 2000, concentrates in the county's growth edges. The service diary divides along that line: deep equipment-and-duct conversations at the old end, first-replacement and control conversations at the new one.
The county is worth a page of its own because its facts do not reduce to its metro's. The Portland metro supplies the climate station and the housing profile, but York County supplies everything at ground level: 991 square miles, its own communities and codes, its own neighbours — Cumberland County, Sagadahoc County among the 2 on its list — and its own position, southwest of the Portland metro's centre. The metro page and this page link to each other because neither half of that picture stands well without the other.
City pages carry the metro-wide homework — housing eras, the problem ranking, services in depth. This county sits inside their coverage.
Population 22,463
Population 22,095
Population 20,636
Population 9,150
Population 6,008
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 York County and the Portland 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