16 AC Replacement Contractors in Seattle, WA

4.8 avg rating
3,616 total reviews1 offer 24/7 service
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Top-Rated AC Replacement Contractors in Seattle

#1

Eco Electric, Plumbing, Heating and Air

4.8(2,231 reviews)
Highly Rated

Every reviewer awarded 5 stars, with customers frequently naming technicians Ed, Elijah, Dylan, Nate, Ryan, Vince, and Salesi. Multiple reviews mention…

126 S Spokane St, Seattle, WA 98134
#2

Glendale Heating & Air Conditioning

4.8(677 reviews)
Highly Rated

All six detailed reviews award five stars, with Greg, Sergei, and Bryan each named specifically for their diagnostic skill and professional demeanor. Four…

12462 Des Moines Memorial Dr, Seattle, WA 98168
#3

Olson Energy Service

4.8(373 reviews)
Highly Rated

All 373 reviewers awarded 5 stars, with customers specifically praising non-pressuring sales approaches and technician expertise. Multiple reviews mention…

13190 Stone Ave N, Seattle, WA 98133

All AC Replacement Contractors (16 total)

Skyline Heating & Cooling

5.0(68)

All 63 reviews award 5 stars, with customers specifically naming technicians Scott and Lucas for their…

Leschi Top HVAC Specialist

5.0(50)

Seven of eight reviewers specifically praise the same-day service capability, with several noting technicians…

Allied Heating and Air Conditioning Solutions

4.8(41)

All 41 reviews award five stars, with customers consistently praising James for his diagnostic accuracy and…

Black Lotus HVAC LLC

5.0(35)

All 35 reviews award 5 stars, with customers specifically naming Charlie Lightsey, Parker, and the team for…

Five Star Comfort LLC

4.7(24)

Twenty-four reviewers collectively award Five Star Comfort a 4.7-star average, with every published rating at…

Clean Zone Heating & Air Conditioning

4.3(30)

Eight reviewers all award 5-star ratings, with Rabah specifically named in five reviews and Mohamed in one.…

Montlake Best HVAC Expert

5.0(18)

All 18 reviews award 5 stars, with customers highlighting same-day response times, skilled technicians like…

Johns Seattle Air Pros

4.4(25)

Two of three reviewers awarded five stars and named technician Brandon in connection with successful…

Columbia Heating & AIr Conditioning

5.0(11)

All 11 reviews award 5 stars, and every reviewer names Mark as the technician who handled their job.…

Heat Flow Mechanical LLC

4.9(10)

All four reviewers who provided detailed feedback mention Luke by name, highlighting his technical skill and…

Evergreen Seattle HVAC Systems

5.0(9)
24/7

All nine reviewers awarded five stars, with duct and vent services cited by every customer. Multiple…

Des Moines Memorial Dr S, Seattle, WA 98168

Aire Serv of North-Central Seattle

5.0(5)

Four of five reviews explicitly mention diagnostic skill as a standout quality, with two reviewers naming…

OutToday Plumbing, Heating & Electrical

3.7(9)

Three of nine reviewers awarded five-star ratings, specifically praising same-day response times and…

1900 Airport Wy S #103, Seattle, WA 98134

AC Replacement Costs in Seattle

Replacement costs for aging systems in Seattle. If repair cost exceeds 50% of replacement, replacement is usually more economical.

ServiceLowAverageHigh
Central AC (3-ton, basic)
$6,160$8,960$12,320
Central AC (4-ton, mid-efficiency)
$8,400$11,760$15,680
Central AC (5-ton, high-efficiency)
$10,640$14,000$17,920
Full HVAC system (AC + furnace)
$12,981$15,042$15,792
Plus ductwork replacement
If existing ducts are aged/leaking
$2,352$3,360$4,480
Repair cost threshold50% rule: if repair > 50% of replacement, replace

Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.

AC Replacement in Seattle, WA: What to Expect

Seattle’s temperate climate — wet winters with lows around 37°F and summers that rarely top 76°F — has historically favored heating work, but recent heat waves spurred quick adoption of cooling. That shift drives demand for ac-replacement Seattle projects, and the local market now supports 11 contractors with an average 4.7 rating from 3,522 reviews; one firm advertises 24/7 availability for urgent needs. Heat pumps are increasingly chosen for both heating and cooling efficiency.

Specific cost figures were not provided in the dataset, so homeowners should expect pricing to vary by equipment type, system size, and whether a heat pump retrofit is involved. Washington has no statewide HVAC license; local jurisdictions handle permits and contractor licensing, so verify city or county credentials and required permits. Ask for itemized estimates that separate labor, equipment, and disposal to compare bids fairly.

Customer highlight details were not available in the provided data, and no individual technician names were listed. Still, with a strong overall rating, focus on reviewers’ comments about installation quality, post-install support, and warranty handling when vetting contractors. Given growing interest in heat pumps, prioritize installers with clear experience in cold-climate heat pump performance and documented references.

Frequently Asked Questions

AC replacement in Seattle runs $2,352-$17,920 depending on system size and efficiency. A 3-ton basic central AC costs $5,500-$11,000 installed, a 4-ton mid-efficiency system $7,500-$14,000, and a 5-ton high-efficiency unit $9,500-$16,000. Full HVAC replacement (AC + furnace combined) averages $11,590-$14,100.

All HVAC Contractors in Seattle, WA

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