Heat Pump Installation Across Puget Sound
A heat pump is the one piece of equipment that heats your home in winter and cools it in summer from a single outdoor unit. In Western Washington that combination is the reason heat pumps have gone from a niche upgrade to the default recommendation for most homes replacing aging gas furnaces or electric-resistance heat.
The math changed for two reasons. First, the 2021 heat dome and the hot summers that followed made air conditioning a requirement, not a luxury, across the marine climate. Second, PSE, Snohomish County PUD, Seattle City Light, and Tacoma Power now put real rebate money behind conversions, and the federal 25C tax credit stacks on top. A modern cold-climate heat pump keeps its heating capacity down to the low teens and often below, which covers almost every night the Puget Sound lowlands ever see.
This page explains the conversion economics honestly, walks through what the install actually involves, and tells you what drives the price up or down. You have probably already talked to three companies. Here is the mechanism, not the sales pitch.
What a heat pump installation includes
We start with a load calculation, not a rule of thumb. Oversizing a heat pump is the most common installer mistake in this region and it causes short cycling, poor humidity control, and premature compressor wear. We size to your actual envelope, then match the outdoor unit, indoor coil or air handler, and controls as a system.
For a home that already has ductwork and a gas furnace, we typically install a heat pump paired with either a variable-speed air handler or a matched furnace as backup. For a home on electric-resistance baseboard or wall heat with no ducts, a ductless system is usually the better path, and we will tell you when that is the case rather than forcing ducts where they do not belong.
- Manual J load calculation sized to your home, not square-footage guesswork
- Matched outdoor condenser, indoor coil or air handler, and refrigerant line set
- New pad or wall bracket, electrical disconnect, and dedicated circuit as required
- Smart or communicating thermostat configured for heat-pump staging
- Refrigerant charge verified by weight and superheat, not by feel
- Permit filed and inspection scheduled with your local jurisdiction
When a heat pump is the right call
The strongest case is a home running electric-resistance heat: baseboard, wall units, or an electric furnace. A heat pump delivers two to four units of heat for every unit of electricity, so you are often cutting the heating portion of the electric bill by more than half while gaining central cooling you never had.
Gas-furnace homes convert for a different reason: adding AC anyway costs nearly as much as a heat pump, and the heat pump lets you leave the gas furnace as backup for the coldest snaps. You get summer cooling, lower shoulder-season heating cost, and rebate eligibility in one project.
Signs to watch for
- You are paying high winter electric bills on baseboard or an electric furnace
- You want central AC and are already pricing a condenser and coil
- Your gas furnace is 15 or more years old and due for replacement
- You qualify for utility rebates that only apply to heat pumps, not straight AC
- You want backup heat capability without a second full system
- Summer heat waves are now making the upper floor unlivable
What heat pump installation costs and what drives it
A ducted heat pump conversion in Puget Sound generally runs in the mid four figures to the low five figures installed, before rebates and tax credits. Ductless systems vary widely by the number of indoor heads. The honest answer is that the range is wide because the drivers below move the number more than the brand does.
Rebates and the 25C tax credit frequently take thousands off the net cost, which is why the pre-rebate sticker is a poor comparison tool. We quote the installed price and the estimated net after incentives so you can see both.
What drives the range
- Ducted versus ductless, and the number of indoor zones
- Cold-climate rating and efficiency tier of the equipment
- Electrical panel capacity and whether a new circuit or panel work is needed
- Whether existing ductwork can be reused or needs sealing and modification
- Backup heat configuration: gas furnace, electric strips, or none
- Line-set length and outdoor unit placement difficulty
Rebates, tax credits, and permits
This is where the conversion wave gets its momentum. PSE offers heat pump rebates for both gas-to-heat-pump and electric-resistance-to-heat-pump conversions, with the larger amounts going to homes leaving electric-resistance heat. Snohomish County PUD, Seattle City Light, and Tacoma Power run their own electric-side programs with their own qualifying equipment lists. Amounts and eligibility change, so we confirm the current program against your address before you commit.
On top of utility rebates, the federal 25C Energy Efficient Home Improvement Credit covers a percentage of qualifying heat pump costs up to an annual cap, provided the equipment meets the efficiency thresholds for our climate region. Choosing equipment that clears both the utility list and the 25C threshold is part of how we spec the system.
Heat pump installation requires a mechanical permit in every Washington jurisdiction, and electrical work requires its own permit. We pull the permits and schedule the inspection. Skipping the permit is how homeowners lose rebate eligibility and hit problems at resale, so it is never optional on our installs.
How the install works
- 1
Same-day estimate and load calculation
We assess your home, run the load calculation, check your panel, and give you a written estimate the same day, including the estimated net cost after rebates and the 25C credit.
- 2
Equipment selection and rebate confirmation
We match equipment that clears both your utility's rebate list and the federal tax-credit threshold, then confirm current program amounts against your address.
- 3
Permitting
We file the mechanical and electrical permits with your jurisdiction and schedule inspection so the job stays compliant and rebate-eligible.
- 4
Installation
We set the outdoor unit, install or connect the indoor equipment, run and evacuate the line set, verify charge by weight, and configure the thermostat for correct heat-pump staging.
- 5
Commissioning and walkthrough
We test heating and cooling modes, confirm airflow and defrost operation, walk you through the controls, and hand off the paperwork you need to claim rebates and the credit.
New heat pumps carry the manufacturer parts warranty, commonly 10 years when registered on time, and we register your equipment for you. Our workmanship on the installation is warranted separately, and correct charge and airflow at commissioning are what keep the compressor warranty valid.
Brands we work on
- Mitsubishi Electric
- Daikin
- Bosch
- Carrier
- Lennox
- Trane
- Day & Night
Heat Pump Installation questions, answered
Do heat pumps actually work in Western Washington winters?
Yes. Our lowland winters are mild but long, which is the exact profile heat pumps are built for. A cold-climate model holds rated heating capacity into the low teens, well below the temperatures most Puget Sound homes ever see, and backup heat covers the rare colder night.
Should I keep my gas furnace as backup?
Often yes. Pairing a heat pump with your existing gas furnace as backup, called a dual-fuel setup, gives you efficient heat-pump operation most of the year and gas capacity for the coldest snaps. We will tell you whether that makes sense for your home and rates.
How much can rebates and the tax credit save me?
It varies by utility and by whether you are leaving gas or electric-resistance heat, but combined utility rebates and the federal 25C credit frequently reduce net cost by thousands of dollars. We confirm current amounts against your address before you sign anything.
Ducted or ductless for my house?
If you have good existing ductwork, a ducted heat pump is usually the cleanest path. If you heat with baseboard or wall units and have no ducts, a ductless system almost always wins on cost and efficiency. We recommend based on your home, not on what we would rather sell.
Will a heat pump lower my energy bills?
For homes on electric-resistance heat, the savings are large because a heat pump delivers several units of heat per unit of electricity. For gas homes the winter savings are smaller, but you gain cooling and rebate eligibility that straight AC does not qualify for.
Do I need an electrical panel upgrade?
Sometimes. A heat pump needs a dedicated circuit, and older panels may not have capacity, especially if you are also adding electric backup heat. We check your panel during the estimate and include any required electrical work in the written quote.
Related services
- Ductless Mini Split Installation
- Heat Pump Repair
- Furnace Installation
- Air Conditioner Installation
- HVAC Maintenance Plans
We serve homeowners across eight Puget Sound counties, Everett to Puyallup. See our full service area.
Authorized dealer for all major brands
We repair all major brands, whether or not we installed the system.
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