Heating and cooling help in Washington County

Heating & cooling in Washington County: what the local homes tell you

The median home in Washington County was built in 2003, noticeably newer than Utah as a whole, where the median is 1992. 57% of homes here went up in 2000 or later. 72% are owner-occupied, and 73% are single-family detached houses.

The 2021 IECC puts Washington County in climate zone 3B, the hot-dry zone — the only Utah county in it. RESNET's county table lists a 1% cooling design temperature of 109°F for Washington County. That is the figure a load calculation sizes equipment against — not the record high, but the temperature the system has to keep up with on a normal hard day.

58% of occupied homes in Washington County heat with utility gas and 38% with electricity (statewide it is 79% and 17%). That electric share is well above Utah's, so heat pumps and electric furnaces are a bigger part of the local mix — it helps to know which you have before the contractor arrives.

With most homes here built since 2000, a lot of systems are reaching the age where the original equipment starts to need parts. Have the model and serial number from the unit's label handy — it tells the contractor its age before they arrive.

Housing figures: U.S. Census Bureau, American Community Survey 2024 5-year estimates. Climate: 2021 IECC county zones (PNNL) and RESNET's design-temperature table.

Heating & cooling requests we book in Washington County

• AC not cooling
• Furnace not heating
• Heat pumps
• Ductless mini-splits
• System replacement
• Seasonal maintenance

Before anyone starts work in Washington County

In Utah, contracting work in this trade is licensed by the Division of Professional Licensing (DOPL). The classification to look for is H100 (HVAC Contractor). You can look up any contractor's license yourself on DOPL's license lookup — the contractor we book will not mind you checking.

Ask whether the job needs a permit and who is pulling it, and get the answer on the written estimate.