Top 3 HVAC Contractors in Seattle

Compare the highest-rated hvac professionals in Seattle, Washington. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Sound Heating & Air Conditioning

4.8
(324 reviews)
Verified

A premier HVAC contractor specializing in energy-efficient heat pump systems ideal for Seattle's mild climate. Offers comprehensive installation, maintenance, and repair services for all major brands. Known for expertise in ductless mini-splits and high-efficiency furnace replacements.

4519 Airport Way S, Seattle, WA 98108

Specialties & Features

Heat Pump Specialists
24/7 Emergency Service
Energy Efficiency Consulting
Ductless Mini-Splits

Business Information

Years in Business:18 years
Licensed:Yes
Insured:Yes
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#2

Brennan Heating & Air Conditioning

4.7
(287 reviews)
Verified

Family-owned HVAC company with deep roots in the Seattle area. Provides exceptional furnace and AC services with a focus on reliability and customer education. Strong expertise in humidification control systems important for Seattle's damp climate.

1250 S Michigan St, Seattle, WA 98108

Specialties & Features

Furnace Installation & Repair
Humidification Systems
Preventive Maintenance Plans
Indoor Air Quality Solutions

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
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#3

Greenwood Heating & Air Conditioning

4.6
(213 reviews)
Verified

Specializes in eco-friendly HVAC solutions and energy efficiency upgrades for Seattle homes. Offers advanced ductwork diagnostics and sealing services to improve system performance in older Seattle homes. NATE-certified technicians with expertise in hybrid heating systems.

8727 Greenwood Ave N, Seattle, WA 98103

Specialties & Features

Energy Efficiency Upgrades
Ductwork Design & Sealing
Hybrid Heating Systems
Smart Thermostat Integration

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
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Why These Are the Top HVAC Contractors in Seattle

Seattle's HVAC market is characterized by high demand for energy-efficient heat pumps that handle both heating and cooling in the mild marine climate. The moderate but humid winters drive need for reliable heating and humidity control, while increasingly warm summers are creating greater demand for AC installation. Most providers emphasize energy efficiency and indoor air quality solutions. The market is competitive with numerous established local providers rather than national chains.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Seattle regulations and climate