Air Source Heat Pump Installation in Seattle (2026): Top 5 Companies Compared

Air source heat pumps dominate the Seattle market for a practical reason: they pull heat from the outside air, which every property has access to, unlike ground source (geothermal) systems that require enough land or a nearby water source to bury the loop system that makes them work. That accessibility, combined with lower installation cost compared to geothermal, is why air source systems account for the vast majority of heat pump installations across Western Washington. Heat pump installation in Seattle from Product Air focuses on air source systems specifically, since that’s what fits the overwhelming majority of Seattle properties.

Understanding why air source dominates helps homeowners skip researching a system type that likely doesn’t apply to their property. We compared installation expertise, manufacturer partnerships, pricing, and reviews across five companies handling air source heat pump installation in Seattle.

heating and air-conditioner sitting on the side of house — Source: Unsplash

What We Looked At

Direct experience specifically with air source systems, the standard for most homes
Manufacturer certifications with major air source brands
Load calculations tailored to the property rather than generic sizing
Pricing disclosed before installation begins
Verified review consistency for installation projects
Local rebate program knowledge for Seattle City Light and PSE territories

1. Product Air Heating, Cooling & Electric

Product Air specializes in air source heat pump installation, sizing each system based on a home’s specific square footage, insulation, and window exposure rather than a generic estimate. Both ducted and ductless mini-split configurations are available, covering the range of ways air source systems get installed in Seattle homes.

As a certified Mitsubishi Diamond Partner, the company installs air source systems built to handle Seattle’s mild but damp climate effectively. Energy Skilled recognition from the U.S. Department of Energy reflects training that extends to helping homeowners navigate Seattle City Light and PSE rebate programs specific to air source installations. The company holds a 5.0 rating across 679 verified Google reviews and is licensed and insured under WA #604346979.

2. Go-Green Heating AC & Electric

Go-Green Heating AC & Electric installs air source heat pumps for Seattle homeowners looking to combine heating and cooling into one efficient system. Reviews mention thorough explanations of how the system works and what to expect from year-round performance.

As with any installer, it’s worth confirming specific experience with the exact home type and square footage involved, since load calculations for air source systems can vary meaningfully between older and newer construction.

3. Overlake Heating

Overlake Heating handles air source heat pump installation for Eastside and Seattle-area homeowners, with reviews specifically mentioning consistent, courteous service throughout the installation process. The company has built a reputation for straightforward communication from initial quote through project completion.

It’s worth confirming current scheduling availability and realistic installation timeline, since demand for heat pump installation tends to spike seasonally as homeowners plan ahead of both summer heat and winter cold.

4. Innovative Air Heating & Air Conditioning

Innovative Air Heating & Air Conditioning provides expert guidance for homeowners deciding between straight air conditioning and a full air source heat pump system, helping customers understand which components best meet their specific needs. The company’s technicians bring years of combined HVAC experience to the decision-making process.

Because the company covers both AC-only and full heat pump installations, it’s worth clarifying upfront that a specific quote reflects a true air source heat pump system rather than a standard air conditioner, since the two involve different equipment and costs.

5. Montanos Heating & Cooling

A family-owned business, Montanos Heating & Cooling serves Lake Stevens and surrounding Snohomish County communities with heat pump and thermostat installation, emphasizing personalized service tailored to each customer’s specific comfort needs. The company offers free consultations before recommending a system.

As a smaller family operation, it’s worth confirming current project capacity, since personalized, hands-on service from a small team can mean a longer wait during high-demand periods compared to larger companies.

Comparison at a Glance

Company	Best For	Key Differentiator
Product Air Heating, Cooling & Electric	Home-specific load calculations	Mitsubishi Diamond Partner, DOE Energy Skilled
Go-Green Heating AC & Electric	Clear system education for homeowners	Detailed explanations of year-round performance
Overlake Heating	Straightforward Eastside service	Consistent communication through project completion
Innovative Air Heating & Air Conditioning	Comparing AC-only versus full heat pump	Guided decision-making between system types
Montanos Heating & Cooling	Personalized small-business service	Free consultations, Snohomish County focus

Questions to Ask Before Air Source Heat Pump Installation

Is a load calculation being done specifically for my home, or is this a generic estimate?
Why is air source the right choice for my property versus other system types?
What manufacturer certifications does your team hold for the brand being installed?
How does the company help navigate Seattle City Light or PSE rebate programs?
What’s the realistic installation timeline from estimate to completion?
What warranty applies to both equipment and labor?

Frequently Asked Questions

What makes air source heat pump installation different from other heat pump types? Air source systems pull heat from outdoor air, requiring only an outdoor unit and appropriate electrical capacity, unlike ground source systems that need land or water access for underground loops. This accessibility is why air source dominates residential installations in Seattle and most urban and suburban areas.

How much does heat pumps installation typically cost in Seattle? Costs generally range from $4,000 to $13,000 depending on system size, efficiency rating, and whether electrical or ductwork upgrades are needed. Getting itemized quotes from a few companies helps confirm a fair price for a specific home’s requirements.

How to install a heat pump, and can a homeowner do any of it themselves? Professional installation involves electrical work, refrigerant handling requiring EPA certification, and precise sizing calculations that require training to get right. While a homeowner can research options and understand the process, the actual installation should be handled by a licensed HVAC contractor.

Do air source heat pumps work well in Seattle’s climate specifically? Yes. Seattle’s mild, humid winters suit air source heat pump technology well, and modern systems are designed to operate efficiently even during occasional cold snaps. Most homeowners see lower energy costs compared to running separate furnace and AC systems.

How long does air source heat pump installation typically take? Most installations are completed within one to two days for straightforward projects. Installations requiring electrical panel upgrades or ductwork modifications can take longer, so it’s worth asking for a specific timeline upfront.

Are there rebates available for air source heat pump installation? Yes, Seattle City Light and Puget Sound Energy both offer rebate programs for qualifying heat pump installations. A contractor familiar with current program requirements can help ensure paperwork is submitted correctly to maximize available savings.