Washington · Cost guide
Cost Guide: HVAC Contractors in Washington
What shapes the price, what to check, and who locals recommend.
- Updated
- Customer FavoriteThomas E Clark
★ 4.8 · 118 reviews
- Lains Auto Services
★ 4.6 · 96 reviews
- Motor World
★ 4.6 · 65 reviews
Before you sign
Four things to check with any business
- Check the license with your state's licensing board.
- Get three itemised quotes so you compare like with like.
- Confirm who pulls the permit: it should be in the business's name.
- Tie payments to stages and get the warranty in writing.
For a fair price, compare three itemised quotes for the same job. Ask the favorites for a quote
Who to call
Washington's favorite hvac contractors
- Customer FavoriteThomas E Clark
★ 4.8 · 118 reviews
- FavoriteLains Auto Services
★ 4.6 · 96 reviews
- FavoriteMotor World
★ 4.6 · 65 reviews
- Overall FavoriteJohn Nugent & Sons
★ 4.8 · 323 reviews
- FavoriteHome Comfort Air Services
★ 5.0 · 108 reviews
Local facts
Washington, by the numbers
Official figures that shape what the job costs here.
11,348
People per square mile
Calculated from U.S. Census Bureau 2025 estimates and Gazetteer land area · 2025
61.1 sq mi
Land area
693,645
Washington residents
U.S. Census Bureau, Vintage 2025 population estimates (sub-est2025) · July 1, 2025
+0.6%
Population change since 2020 (from 689,544 (April 2020 base))
U.S. Census Bureau, Vintage 2025 population estimates (sub-est2025) · 2020–2025
Questions
Cost questions answered
How is the top 5 ranking of HVAC contractors in Washington calculated?
Each business gets a score from its rating, review volume, recent reviews, years in business, profile completeness and record checks. The highest scores make the list. We compared 13 HVAC contractors for Washington.
Which of these HVAC contractors in Washington has the best reviews?
Home Comfort Air Services has a 5.0 rating from 108 public reviews, the highest on this page.
Which of these HVAC contractors has the most reviews?
John Nugent & Sons, with 323 public reviews. A long review history shows how a business handles many jobs.
Are these HVAC contractors licensed?
5 of the 5 businesses here had their state license checked against public records. Each profile shows the source and the date of the check.
How many quotes should I get for HVAC contractors in Washington?
Get at least three. Use the quote form on this page: only the businesses you tick receive your request.