Best HVAC Contractors in Seattle, WA

Updated March 2026 · Based on licensing, reviews & response time

How We Identified the Best Hvac in Seattle, WA

Our "best" ranking goes beyond star ratings. We evaluated hvac companies in Seattle, WA on licensing, insurance, complaint history, response time, and pricing transparency to surface the truly top-tier options.

💡 Quick Tips:
  • Verify the company's license number on your state's contractor board website
  • Read recent reviews specifically from Seattle, WA customers, not just overall ratings
  • Ask about warranties on both parts and labor before signing a contract
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1

Greenwood Heating and Home Services

14027 Interurban Ave S, Seattle, WA 98168
★★★★½ 4.9 (4,306 reviews)
Licensed & Insured24/7 EmergencyHighly ReviewedTop Rated
Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning
Seattle, WA (206) 207-4734
2

Evergreen Home Heating and Energy

727 S Kenyon St Suite B, Seattle, WA 98108
★★★★½ 4.8 (978 reviews)
Licensed & Insured24/7 Emergency
Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning
Seattle, WA (206) 565-1455
3

Glendale Heating & Air Conditioning

12462 Des Moines Memorial Dr, Seattle, WA 98168
★★★★½ 4.8 (665 reviews)
Licensed & Insured24/7 Emergency
Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning
Seattle, WA (206) 243-7700
4

AAA Heating & Air Conditioning

4150 Lind Ave SW, Renton, WA 98057
★★★★½ 4.9 (4,668 reviews)
Licensed & Insured24/7 EmergencyHighly ReviewedTop Rated
Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning
Seattle, WA (253) 243-8556
5

Go Green Heating AC & Electric

3218 Eastlake Ave E Ste 1B, Seattle, WA 98102
★★★★½ 4.8 (214 reviews)
Licensed & Insured
Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning
Seattle, WA (206) 620-1600
6

Seattle Heating & Cooling

1912 N 45th St, Seattle, WA 98103
★★★★½ 4.8 (81 reviews)
Licensed & Insured
Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning
Seattle, WA (206) 848-8080
7

GREENTOP Heating

10235 SE 260th St, Kent, WA 98030
★★★★½ 4.9 (199 reviews)
Licensed & InsuredTop Rated
Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning
Seattle, WA (253) 754-5441
8

Seattle Heating & Cooling

18640 68th Ave S, Kent, WA 98032
★★★★½ 4.7 (68 reviews)
Licensed & Insured
Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning
Seattle, WA (206) 848-8080
9

Brennan Heating, Air Conditioning, & Electric

4601 S 134th Pl, Seattle, WA 98168
★★★★½ 4.6 (2,239 reviews)
Licensed & Insured24/7 EmergencyHighly Reviewed
Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning
Seattle, WA (425) 553-2613
10

2 Sons Plumbing, Sewer, Septic, Electric, Heating & Air

2208 NW Market St #316a, Seattle, WA 98107
★★★★½ 4.9 (3,641 reviews)
Licensed & Insured24/7 EmergencyHighly ReviewedTop Rated
Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning
Seattle, WA (206) 337-4070

How We Ranked These Seattle Pros

Our rankings are based on a weighted evaluation of five key factors:

  1. Licensing & Insurance — All listed businesses hold active state licenses verified through official databases.
  2. Customer Reviews — We aggregate ratings from Google, Yelp, and the BBB, weighting recency and review volume.
  3. Response Time — Companies offering same-day or 24/7 emergency service score higher.
  4. Pricing Transparency — Businesses who offer flat-rate pricing or free estimates rank above those with opaque billing.
  5. Experience & Longevity — Years serving the Seattle market and breadth of services factor into overall reliability.

Rankings are reviewed quarterly. Have a correction? Contact us.

Common Best Hvac Questions

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