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HVAC Service in Delaware

Licensed HVAC contractors across every county in Delaware.

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A two-story red brick house with white shutters, a small pedimented front porch, and a concrete walkway leading from the street through clipped hedges and lawn, flanked by leafy trees.

What Delaware homes are up against.

678678 severe weather events were recorded in Delaware between 2015 and 2024.
464,203Delaware holds 464,203 housing units (2020-2024 ACS 5-year).
1987Half the homes in Delaware were built in 1987 or earlier (2020-2024 ACS 5-year).
274New Castle County carries the heaviest storm record in Delaware, with 274 events between 2015 and 2024.

NOAA National Centers for Environmental Information, Storm Events Database, bulk CSV export, events 2015-01-01 through 2024-12-31. · U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates

View from under a covered porch with a gray column toward a brick house with a gray side door, a snow-covered walkway and lawn, and bare trees during falling snow.

A homeowner deciding whether a furnace repair is worth doing or a replacement makes more sense should think about how often the burner actually fires. Homes in Delaware run heat about seven months a year, from October through April. That leaves little downtime for the heat exchanger and ignition system to rest between cycles, so wear on those parts shows up sooner than it would if the furnace only ran for a stretch of winter. The compressor outside gets long stretches of quiet by comparison. The burner and igniter carry the load most months, and that is where trouble tends to start first.

NOAA National Centers for Environmental Information, nClimDiv county and statewide normals, 1991-2020.
A closed gray electrical panel mounted on a stone basement wall, with a metal duct above it and a wooden-handled rake leaning against the stone to the right.

Before a new furnace or heat pump goes in, a contractor has to open up what is already there and see what it is working with. Half the homes in Delaware were built in 1987 or earlier (2020-2024 ACS 5-year). That means the ducts, the wiring to the unit, and the space it sits in were all built to match equipment that may have little in common with what is being installed now. A duct sized for one system will not necessarily move the right air for another. The electrical panel may or may not have room for a new circuit. None of that shows up on a spec sheet. It shows up when someone opens the wall or the panel and looks.

U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates

Does your Delaware county see a lot of severe weather?

Severe weather events by year — Delaware
2001000
2015201620172018201920202021202220232024
158

2015–2024 · Source: NOAA National Centers for Environmental Information, Storm Events Database.

FIND YOUR COUNTY

A heavier storm record means the outdoor unit works against more than everyday wear. Wind can rock it on its pad, heavy rain can drive water into the cabinet, and hail can dent the fins that keep it cooling properly. A homeowner in a county with a heavier record should have a contractor check where the outdoor unit sits, how well it is anchored, and the condition of the unit itself.

Delaware requires HVAC contractors to hold a state license.

Licenses are issued by the Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners.

Look up a contractor's license on the Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners' website.

Sources: Delaware Code Online · Delaware Division of Professional Regulation

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