HVAC replacement costs in Seattle, WA, depend on factors like unit type, size, and labor. See what you can expect to pay for HVAC replacement here.
How Much Does a Heat Pump Cost in Seattle? [2026 Data]
Heating and air conditioning service costs depend on your project and location. Check with a local pro for your specific job.
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Highlights
The average heat pump cost in Seattle, WA, is $10,218.
A typical Seattle home needs about 2.5–3 tons of capacity in a heat pump.
The minimum SEER requirement for Seattle is 14.
But a higher SEER means more energy savings.
Permits will cost around $130 for heat pump installation.
Seattle City Light offers rebates of $300–$600 on qualifying heat pumps.
Heat pump costs in Seattle, Washington, average around $10,218. However, depending on the type of heat pump you install, the size of your home, the efficiency rating on the heat pump, and add-ons like ductwork replacement, the cost ranges from $6,667 to $13,852. With its mild climate, Seattle offers optimal conditions for a heat pump to provide year-round comfort via efficient heating and cooling.
Heat Pump Cost Factors
A heat pump is an energy-efficient alternative to traditional AC and furnace systems. The cost to install this device depends on a number of different factors, such as what capacity you need to properly heat or cool your home and the type of heat pump you choose. Here are some of the most common cost factors for installing a heat pump.
Size
What size heat pump do you need? That depends on the size of your home. For every 500 square feet, you can estimate one ton capacity for your heat pump. In Seattle, where the median home size is 1,890 square feet, you’d need a heat pump capacity of 2.5 to 3 tons.
Rather than just guessing on the size, let an HVAC pro in Seattle, Washington, determine the perfect fit for your heating and cooling needs.
| Heat Pump Capacity in Tons | Home Size in Square Feet | Average Cost Range |
|---|---|---|
| 2 | 1,000 | $3,160–$9,240 |
| 2.5 | 1,500 | $5,560–$11,550 |
| 3 | 2,000 | $6,670–$13,850 |
| 3.5 | 2,500 | $7,780–$16,160 |
| 4 | 3,000 | $8,890–$18,470 |
| 4.5 | 3,250 | $10,000–$19,240 |
| 5 | 3,500 | $11,120–$20,000 |
Type
Next, it’s time to choose what type of heat pump is best for your home and local climate. Because Seattle has milder winters, an air-source heat pump is common for homes here. However, you can invest more in a longer lasting ground-source system, or combine your heat pump with solar for more energy cost savings.
Consider the following costs, as well as pros and cons, for different types of heat pumps.
| Heat Pump Type | Average Cost Range | Pros | Cons |
|---|---|---|---|
| Air-source | $3,160–$13,850 | Low maintenance | Noisier |
| Ground-source | $6,670–$20,000 | Long-lasting | Harder to install |
| Water-source | $10,000–$20,000 | Highly efficient | Requires a large body of water |
| Solar | $18,000–$39,000 | Sustainable system | High installation cost |
Efficiency
Heat pump efficiency is measured by its Seasonal Energy Efficiency Ratio, or SEER. Different regions in the U.S. have minimum SEER requirements. For Seattle, the minimum SEER on HVAC systems is 14. If you can invest more money into a system with a higher SEER rating, it will pay off. Higher-efficiency units offer repeated cost savings on your utility bills.
| SEER | Average Cost Range |
|---|---|
| Standard efficiency (14–15) | $3,160–$6,670 |
| High efficiency (16–18) | $6,670–$13,850 |
| Premium efficiency (19+) | $13,850–$20,000 |
Ductwork
Some heat pumps are available as ductless heating and cooling systems, but if you’re using a forced-air system, it’s important that your ductwork is in good condition. Otherwise, you’ll lose the heated and cooled air, wasting money and energy. Air duct replacement costs around $620 to $2,100.
Prep
For ground-source heat pump installation, you’ll need to prepare the site to lay the pipes, or ground loop, underground. In a major city like Seattle, you’ll want to budget more for land excavation and add these costs to your total heat pump installation cost. Land excavation costs about $1,810 to $5,510.
HVAC Pro Costs
Homeowners will pay around $80 to $150 per hour per worker for the cost of labor to install a heat pump. It can take a day to install an air-source heat pump or a few weeks for ground-source heat pumps.
Installations are complex, especially for ground-source models, and these devices have refrigerants. That means installation should always be handled by a licensed or certified heat pump pro near you.
You’ll also need the proper permits from the Seattle Department of Construction & Inspections before starting this project. Your HVAC pro will handle the permit process for you, adding the permit fees into the project cost. According to the Department of Construction & Inspections, the mechanical fee for a heat pump starts at $56.65 per unit, and you’ll also need a refrigeration fee, which costs a base fee of $39.90, plus $33.40 for units with up to a 5-ton capacity.
Does a Heat Pump Increase Home Value?
A heat pump can increase home value in Seattle by about 7%. This is an attractive home feature for buyers, because a heat pump offers both heating and cooling in one smaller appliance compared to a traditional HVAC system. Plus, with an electricity usage savings of around 25% to 50%, you can get a better return on your investment with a heat pump installation.
How Angi Gets Its Cost Data
Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We survey real Angi customers about their project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We pair this data with research from reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects.
Want to help us improve our cost data? Send us a recent project quote to [email protected]. Quotes and personal information will not be shared publicly.
Heating and air conditioning services reviews from real Angi homeowners in Seattle, WA
4.5★ avg. • 1.1k total reviews
- Kim B.
The general manager called me to understand the problem and he was able to send out a technician next day to my residence to help with our mini split ductless HVAC system. The technician was young but clearly experienced and was able to deduce a very simple and immediately fixable filter...
Northwest Expert Heating, LLC - Peggy C.
Don took great care of our radiant heating system for many years! AND he's a truly nice person!!! Don, it's Peggy Coats. I need to talk to you...Please call or text me at 2065261264.
Radiant Tech Inc - Meredith R.
The heat pump was installed in March 2024. Very good service. I subscribe to the maintenance contract. Every few months a technician is scheduled to check all functions of the pump, air cleaner, filters and thermostat communication. One was here today. Helped me further understand the...
Blue Flame Heating and Air Conditioning - Julian B.
George was super helpful over the phone determining the right water heating solution for our home, was highly communicative and transparent throughout the process, and made quick work of the installation of our electric water heater. Would highly recommend to other folks in Seattle in need of...
Stream Water Heaters - David E.
Our 27-year-old furnace stopped working suddenly, leaving us without heat. We contacted Product Air after another company failed to show up for a scheduled service call. Product Air responded quickly. Robert diagnosed the problem as a failed motor and was able to find the part elsewhere in...
Product Air Heating & Cooling, LLC - Vivian C.
The work to install a heat pump was professionally done and in a timely manner. He worked with with us to plan placement with limited potential locations and difficult access. And he came back after installation to answer questions and be sure we were happy with it.
Derr Heating & Cooling LLC - Alan S.
Our heating wasn't working and the warehouse was taking a very long time finding the part necessary to fix it. Staci went above and beyond to find a workaround solution for us.
AirPros Energy, LLC - Ellen H.
Fast Water Heating was great. Very nice service on my initial phone call and helpful in getting the right heater. Same day install. Caleb did a quick and tidy job with everything and was patient with all my questions. I would use them again.
Fast Water Heater Company - Jane S.
Please let other people know that we have had very bad experiences with Quality Heating and Cooling and want other folks to steer clear of this company.
Cummings, Inc. - Tim A.
PK Heating & Cooling was tremendous. Great communication, service and work well done. I will always call back for check ups and refer him to others.
PK Heating & Cooling, LLC
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