18 Best HVAC Contractors in Seattle for 2026

❄️ 18 businesses · 📍 Seattle, WA
✓ Verified Google reviews · ✓ Reviewed regularly · ✓ Updated May 29, 2026
Mark Reid
Written by Mark Reid, Home Services Editor · Verified May 29, 2026
Seattle's climate is deceptively demanding on HVAC systems. The city doesn't get the brutal cold of Chicago or the scorching summers of Phoenix, but the damp, grey winters and increasingly warm July and August stretches mean heating systems work hard for months and air conditioning units that once felt optional are now pretty essential for a lot of households. The housing stock adds another layer of complexity. Craftsman bungalows in Columbia City, older mid-century homes in Greenwood, and the sprawling new construction condos rising through South Lake Union all have different ductwork layouts, insulation profiles, and load calculations. A contractor who mostly works on modern builds in Bellevue may not be the right fit for a 1940s split-level in Ballard with an aging forced-air furnace and undersized return vents. Seattle also sits in a mild-enough zone that heat pumps, including cold-climate models rated down to single digits, have become the go-to upgrade for homeowners replacing older gas furnaces. Anyone quoting you on heating in Seattle should know the difference between a standard heat pump and a cold-climate mini-split and be able to walk you through which makes sense for your square footage and insulation.

Every business on this page was drawn from third-party public business listings and ranked by public review rating and review count, with a small lift applied to those that show a working website and a listed phone number. Before anything appears here, we check each business's homepage to confirm that HVAC work is what they primarily offer. That check is how unrelated trades or general contractors who occasionally touch ductwork get kept off the page. Listings flagged as permanently closed are removed automatically. Where you see a Trust Verified badge next to a business name, that company has gone further and passed our full independent verification process, which covers trade qualifications and accreditations, public liability insurance, trading history, customer review history, and registered company information. You can see exactly what that process involves on our How We Verify page. Businesses without that badge have not been independently verified by us, and you should do those checks yourself before booking.

Before you call anyone, it's worth knowing what to ask for. Washington State requires HVAC contractors to hold a state contractor license, so ask for their license number and confirm it's current with the Washington State Department of Labor and Industries before work starts. Get at least three written quotes, and make sure each one breaks out labor and parts separately so you can compare them properly. Ask whether they're pulling the required permits for the job, because in Seattle, permit requirements apply to most new installations and significant replacements. If you're replacing a furnace or installing a heat pump, ask whether the contractor will perform a Manual J load calculation rather than just swapping like-for-like. A correctly sized system runs more efficiently, lasts longer, and keeps your home comfortable without short-cycling. For older Seattle homes with galvanized ductwork, ask specifically about duct sealing and whether the existing duct system can handle the airflow demands of a new unit.
How We Select & Rate The Best HVAC Contractors in Seattle, WA

Rankings on this page are driven by public review rating and review count pulled from third-party business listings, with a small lift for businesses that show a working website and a reachable phone number. We check each business's homepage to confirm HVAC work is what they primarily offer, which keeps unrelated trades off the page. Listings flagged as permanently closed are removed automatically. Businesses marked Trust Verified have additionally passed our full verification process covering trade qualifications and accreditations, insurance, trading history, customer review history, and registered company information. See our How We Verify page for the full list. All other businesses on this page have not been independently verified by us, and inclusion is not an endorsement. Always do your own checks before hiring.

Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. Every other listing is ranked on rating and review count from third-party business listings. How we rank & verify →

Quick Comparison — HVAC Contractors in Seattle, WA

# Business Rating Reviews Phone
1 Eco Electric, Plumbing, Heating and Air ⭐ 4.9 2,232 (206) 548-4353 View →
2 Evergreen Home Heating and Energy ⭐ 4.8 989 (206) 565-1455 View →
3 Olson Energy Service ⭐ 4.8 373 (206) 782-5522 View →
4 Go Green Heating AC & Electric ⭐ 4.8 220 (206) 620-1600 View →
5 Seatown Electric Plumbing Heating and Air ⭐ 4.7 259 (360) 800-3650 View →
6 Progressive Comfort Solutions ⭐ 4.9 153 (206) 887-9077 View →
7 Air Superior ⭐ 4.9 53 (866) 351-3660 View →
8 Mark’s Mini Splits ⭐ 5.0 40 (206) 752-2869 View →
9 Nortech Heating, Cooling & Refrigeration ⭐ 4.5 146 (206) 960-9700 View →
10 Blue Ridge Heating and Air Conditioning ⭐ 5.0 38 (206) 460-1668 View →
11 Make It Wright HVAC ⭐ 5.0 35 (206) 484-5699 View →
12 Cloud 9 Heating & Air ⭐ 5.0 26 (206) 750-5042 View →
13 Energy Technologies ⭐ 4.7 56 (206) 580-1151 View →
14 ALPHA HEATING, COOLING, PLUMBING & ELECTRICIAN ⭐ 5.0 9 (206) 666-4252 View →
15 Aire Serv of North-Central Seattle ⭐ 5.0 8 (360) 226-1599 View →
16 ACCO Engineered Systems ⭐ 4.5 16 (206) 787-8500 View →
17 PSR Mechanical ⭐ 4.3 15 (206) 367-2500 View →
18 Universal Appliance & Commercial Refrigeration LLC ⭐ 4.3 6 (206) 790-8142 View →

Our Top Picks

1
Eco Electric, Plumbing, Heating and Air
Not Verified
4.9 (2,232 reviews)
Seattle, WA (206) 548-4353

Eco Electric, Plumbing, Heating and Air provides comprehensive HVAC services including heating system installation, air conditioning repair, and ventilation solutions throughout the Seattle area. The company maintains a 4.9-star rating based on 2,232 verified customer reviews. Operating from their facility on S Spokane Street, they serve residential and commercial clients across the 98134 postcode and surrounding neighborhoods.

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2
Evergreen Home Heating and Energy
Not Verified
4.8 (989 reviews)
Seattle, WA (206) 565-1455

Evergreen Home Heating and Energy provides comprehensive HVAC services to Seattle area homeowners from their location on S Kenyon Street. The company handles heating system installations, repairs, and maintenance throughout the 98108 area and surrounding neighborhoods. With a 4.8-star rating from 989 verified customer reviews, they have established a solid reputation for reliable heating and cooling solutions.

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3
Olson Energy Service
Not Verified
4.8 (373 reviews)
Seattle, WA (206) 782-5522

Olson Energy Service provides comprehensive HVAC installation, repair, and maintenance services throughout the Seattle area from their Stone Ave N location. The company has earned a 4.8-star rating from 373 verified customer reviews, reflecting their commitment to reliable heating and cooling solutions. Serving the 98133 area and surrounding neighborhoods, they handle both residential and commercial HVAC needs with professional service.

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4
Go Green Heating AC & Electric
Not Verified
4.8 (220 reviews)
Seattle, WA (206) 620-1600

Go Green Heating AC & Electric provides comprehensive HVAC and electrical services throughout Seattle from their Eastlake location. The company maintains a strong reputation with a 4.8-star rating based on 220 verified customer reviews. Their team handles heating, air conditioning, and electrical installation, repair, and maintenance services for residential and commercial properties in the 98102 area and surrounding neighborhoods.

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5
Seatown Electric Plumbing Heating and Air
Not Verified
4.7 (259 reviews)
Seattle, WA (360) 800-3650

Seatown Electric Plumbing Heating and Air provides comprehensive HVAC services throughout Seattle, specializing in heating, cooling, and ventilation system installation, repair, and maintenance. The company maintains a strong reputation with a 4.7-star rating from 259 verified customer reviews, serving residential and commercial clients in the 98117 area and surrounding neighborhoods. Their experienced technicians handle both routine maintenance and emergency HVAC repairs to keep properties comfortable year-round.

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6
Progressive Comfort Solutions
Not Verified
4.9 (153 reviews)
Seattle, WA (206) 887-9077

Progressive Comfort Solutions specializes in HVAC services throughout Seattle, operating from their location on NW 85th Street in the 98117 area. The company maintains a 4.9-star rating from 153 verified customer reviews, reflecting their consistent service quality. They focus on ductless heating and cooling systems, providing installation, maintenance, and repair services for residential and commercial properties.

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7
Air Superior
Not Verified
4.9 (53 reviews)
Seattle, WA (866) 351-3660

Air Superior provides comprehensive HVAC services including heating, ventilation, and air conditioning installation, repair, and maintenance throughout the Seattle area. Based in the 98115 area, this contractor has earned a strong reputation with a 4.9-star rating from 53 verified customer reviews. Their experienced technicians serve residential and commercial clients across Seattle with reliable climate control solutions.

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8
Mark’s Mini Splits
Not Verified
5.0 (40 reviews)
Seattle, WA (206) 752-2869

Mark's Mini Splits specializes in ductless mini-split air conditioning and heating systems for residential and commercial properties in Seattle. Operating from their Rainier Ave S location in the 98118 area, the company has earned a perfect 5-star rating from 40 verified customer reviews. Their services include installation, maintenance, and repair of energy-efficient mini-split HVAC systems.

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9
Nortech Heating, Cooling & Refrigeration
Not Verified
4.5 (146 reviews)
Seattle, WA (206) 960-9700

Nortech Heating, Cooling & Refrigeration provides comprehensive HVAC services throughout Seattle, specializing in installation, repair, and maintenance of heating, cooling, and refrigeration systems. Operating from their location on 49th Ave S in the 98118 area, they serve residential and commercial customers with reliable climate control solutions. The company maintains a 4.5-star rating based on 146 verified customer reviews, reflecting their commitment to quality service and customer satisfaction.

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10
Blue Ridge Heating and Air Conditioning
Not Verified
5.0 (38 reviews)
Seattle, WA (206) 460-1668

Blue Ridge Heating and Air Conditioning provides comprehensive HVAC services including installation, repair, and maintenance for residential and commercial properties throughout Seattle. Based in the 98117 area, the company has earned a perfect 5-star rating from 38 verified customer reviews. Their experienced technicians handle everything from furnace repairs and air conditioning installations to routine system maintenance and emergency service calls.

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11
Make It Wright HVAC
Not Verified
5.0 (35 reviews)
Seattle, WA (206) 484-5699

Make It Wright HVAC provides heating, ventilation, and air conditioning services to Seattle and surrounding areas from their location on 5th Ave NW. The company has earned a perfect 5-star rating from 35 verified customer reviews, demonstrating their commitment to quality workmanship and customer satisfaction. They serve residential and commercial clients throughout the 98107 area and beyond with comprehensive HVAC solutions.

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12
Cloud 9 Heating & Air
Not Verified
5.0 (26 reviews)
Seattle, WA (206) 750-5042

Cloud 9 Heating & Air provides residential and commercial HVAC services throughout the Seattle area from their location on S Cloverdale Street. The company specializes in heating and cooling system installation, repair, and maintenance for homes and businesses in the 98108 area and surrounding neighborhoods. With a perfect 5-star rating from 26 verified customer reviews, they have built a strong reputation for reliable service and customer satisfaction.

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13
Energy Technologies
Not Verified
4.7 (56 reviews)
Seattle, WA (206) 580-1151

Energy Technologies provides HVAC contractor services throughout the Seattle area, operating from their Unit C-1 location on 15th Ave NW in the 98117 area. The company maintains a strong 4.7-star rating based on 56 verified customer reviews, reflecting their commitment to reliable heating, ventilation, and air conditioning solutions for local residents and businesses.

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14
ALPHA HEATING, COOLING, PLUMBING & ELECTRICIAN
Not Verified
5.0 (9 reviews)
Seattle, WA (206) 666-4252

ALPHA HEATING, COOLING, PLUMBING & ELECTRICIAN provides comprehensive HVAC, plumbing, and electrical services to Seattle residents from their Midvale Avenue location in the 98133 area. The company maintains a 5-star rating based on 9 verified Google reviews, reflecting their commitment to quality workmanship across heating, cooling, plumbing, and electrical repairs and installations. Their multi-trade expertise allows customers to rely on one contractor for various home comfort and maintenance needs.

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15
Aire Serv of North-Central Seattle
Not Verified
5.0 (8 reviews)
Seattle, WA (360) 226-1599

Aire Serv of North-Central Seattle provides comprehensive heating, ventilation, and air conditioning services to residential and commercial customers throughout the North-Central Seattle area. The company handles HVAC installations, repairs, and maintenance work with a focus on reliable service and customer satisfaction. With a perfect 5-star rating from 8 verified Google reviews, they have established a strong reputation for quality workmanship in the local community.

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16
ACCO Engineered Systems
Not Verified
4.5 (16 reviews)
Seattle, WA (206) 787-8500

ACCO Engineered Systems provides comprehensive HVAC contracting services throughout the Seattle area from their Denver Avenue South location. The company maintains a strong 4.5-star rating based on 16 verified customer reviews, reflecting their commitment to quality heating, ventilation, and air conditioning solutions. They serve residential and commercial clients across the 98108 postcode and surrounding neighborhoods with professional installation, maintenance, and repair services.

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17
PSR Mechanical
Not Verified
4.3 (15 reviews)
Seattle, WA (206) 367-2500

PSR Mechanical provides HVAC installation, repair, and maintenance services to residential and commercial customers throughout Seattle. Located on NE 133rd Street in the 98125 area, this contractor handles heating, ventilation, and air conditioning systems with a focus on reliable service. The company maintains a 4.3-star rating from 15 verified customer reviews on Google.

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18
Universal Appliance & Commercial Refrigeration LLC
Not Verified
4.3 (6 reviews)
Seattle, WA (206) 790-8142

Universal Appliance & Commercial Refrigeration LLC provides HVAC contracting services throughout the Seattle area from their location on Martin Luther King Jr Way S in the 98118 area. The company maintains a 4.3-star rating based on 6 verified customer reviews. Their services focus on heating, ventilation, and air conditioning solutions for both residential and commercial clients.

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Transparency notice: Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. All other listings are ranked by a combined score drawn from ratings and review counts published on third-party business listings, plus basic completeness signals such as a working website and phone. A Trust Verified badge means we have independently checked that business's documents; businesses without it have not been independently verified by us. How we verify →

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Frequently Asked Questions

How much does a HVAC contractor cost in Seattle?
Service calls typically cost $75-$150, with repairs ranging from $200-$800 depending on the issue. Furnace replacement runs $3,500-$8,000 for most Seattle homes, while central air installation costs $4,000-$12,000. Heat pump systems cost $5,000-$15,000 installed. Ductwork replacement adds $3,000-$7,000. Prices vary based on your home's size, existing infrastructure, and equipment quality. Getting quotes from two or three contractors helps you compare pricing and identify any outliers.
Do I need permits for HVAC work in Seattle?
Yes, most HVAC work requires permits from Seattle Department of Construction and Inspections. This includes furnace replacement, new ductwork, electrical connections, and gas line modifications. Simple repairs like thermostat replacement typically don't need permits. Your contractor should handle permit applications and scheduling inspections. Permit costs range from $150-$400 depending on the work scope. Don't hire contractors who suggest skipping permits to save money.
What HVAC systems work well in Seattle's climate?
Heat pumps perform well in Seattle's moderate climate and provide both heating and cooling efficiently. Gas furnaces remain popular for reliable winter heating, especially in older homes with existing gas lines. Ductless mini-split systems work great for homes without existing ductwork or for adding zones. Many contractors recommend keeping existing gas furnaces and adding ductless cooling for summer comfort rather than full system replacement.
How often should I service my HVAC system in Seattle?
Schedule professional maintenance twice yearly - once before heating season and once before summer. Seattle's damp climate means filters get dirty faster, so change them every 2-3 months instead of quarterly. Clean outdoor heat pump units regularly since they collect debris from frequent rain. Annual maintenance visits cost $150-$250 and catch small problems before they become expensive repairs.
What should I do if my furnace stops working?
First, check your thermostat settings and replace the filter if it's dirty. Verify the circuit breaker hasn't tripped and that the gas valve is open. For gas furnaces, make sure the pilot light is lit if you have an older model. If these steps don't help, call a licensed contractor rather than attempting repairs yourself. Emergency service calls typically cost $200-$300 during evenings and weekends.
How do I choose between HVAC contractors?
Verify each contractor's Washington State license number on the L&I website and confirm they carry liability insurance. Get written quotes that specify equipment models, labor costs, and timeline. Ask for local references and check recent online reviews. Compare warranty terms since reputable contractors offer 1-2 year labor warranties on installations. Avoid contractors who quote significantly below others or demand large upfront payments.