Heat Pump Installation in SeaTac, WA

A ducted heat pump installation in SeaTac typically costs $12,000 - $18,000, depending on your home's size, existing ductwork condition, and the equipment tier you choose. We offer Good, Better, and Best options from Day & Night, Carrier, and American Standard.PSE or Seattle City Light incentives may reduce your out-of-pocket cost — PSE pays up to $4,400 toward a qualifying heat pump replacing an electric or fossil-fuel system, with the exact amount set by what you are replacing and the equipment you install, and we confirm your eligibility before quoting rather than after. We provide free in-home estimates with transparent pricing — no hidden fees or pressure tactics.

Yes. The mechanical permit is issued by the City of SeaTac Community & Economic Development Department, and Washington State requires one for this work. We handle the whole thing — application, fee, and meeting the inspector for the final — so you never contact the permit desk yourself. Every install meets or exceeds the current Washington State mechanical and energy codes.

Most ducted heat pump installations in SeaTac are completed in a single day. Our crew arrives in the morning, removes the existing furnace, installs the new indoor air handler and outdoor condenser unit, connects refrigerant lines, and commissions the system by afternoon. Complex installations involving ductwork modifications may extend to a second day, but we will communicate the timeline clearly before work begins.

Absolutely. SeaTac's Pacific Northwest climate is ideal for heat pump operation. Winter temperatures in the Puget Sound region rarely drop below 20 degrees, which is well within the efficient operating range of modern heat pumps. The Day & Night and Carrier systems we install maintain heating efficiency down to well below freezing. Heat pumps also provide cooling during summer — increasingly important as SeaTac summers get warmer.

SeaTac is served by Puget Sound Energy or Seattle City Light depending on the address, so the program that applies to your home is PSE or Seattle City Light: if PSE is the name on your power bill, up to $4,400 toward a qualifying heat pump replacing an existing electric or fossil-fuel system — the exact amount depends on what you are replacing and the equipment you install. PSE pays $1,500 for an electric-resistance conversion plus a $2,400 income-based boost; Seattle City Light runs its own program. We confirm which one you are on before quoting. Rebate programs change, and eligibility turns on your existing heating system, the equipment's efficiency rating and sometimes your household income — we confirm what you actually qualify for before it goes in your quote, and we file the paperwork after the install. The federal 25C tax credit expired on December 31, 2025, so do not budget around it.

The Washington State Energy Code lists SeaTac at a 24°F winter design temperature (WAC 51-11C-80100, Table C-1). That is the number a Manual J load calculation for your home is run against, and it is the difference between equipment that carries the house on its own and equipment that leans on expensive backup heat every cold snap. A cold-climate heat pump holds its rated capacity well below that, which is why heat pumps genuinely work here rather than being a compromise. Gas here comes from Puget Sound Energy, and for some homes a hybrid — heat pump for most of the year, gas furnace for the coldest mornings — is the right answer. We will tell you if it is.