HVAC Installation in Kirkland, WA

Furnace & Heat Pump Installation in Kirkland, Washington

Planning a furnace replacement or heat pump installation in Kirkland before the heating season leaves time to compare quotes and arrange any permit, rather than replacing a failed system in cold weather.

HVAC Install Hub connects Kirkland homeowners and businesses with local HVAC contractors for furnace replacement, heat pump installation, AC, mini-split, and commercial HVAC. Free quote, no obligation.

We are a referral and lead-generation service. We do not perform HVAC work directly. When you submit a quote request, we connect you with local HVAC contractors in the Kirkland area at no cost to you.

HVAC Services Available in Kirkland

• AC installation and central air conditioning replacement
• Gas, electric, and oil furnace installation and replacement
• Air-source heat pump installation — heating and cooling in one system
• Ductless mini-split installation for additions, garages, and zone control
• Commercial HVAC — rooftop units, VRF systems, and packaged commercial installs
• Ductwork installation, replacement, and sealing to fix rooms a new unit alone will not

How It Works in Kirkland

Submit a free quote request with your service type and Kirkland address. We connect your request with HVAC contractors who serve Kirkland, so you can discuss your project and get a no-obligation estimate. You choose the contractor and timeline — there is no cost to use our referral service.

Installing HVAC in Kirkland: What Is Local

Last reviewed October 22, 2026 · How we research

Kirkland is in King County, which Washington's residential energy code places in climate zone 4C, a marine climate. The state code's design temperature table lists Kirkland at 17°F for heating and 83°F for cooling, the outdoor conditions a load calculation starts from. Puget Sound Energy provides both electricity and natural gas in Kirkland, so switching from a gas furnace to a heat pump keeps your heating with the same utility. The City of Kirkland requires a mechanical permit when mechanical systems or fuel gas piping are installed, altered, relocated or replaced in existing buildings, and permit applications are submitted online through MyBuildingPermit.com. Under the Washington State Energy Code, new heating, cooling and duct systems that are part of an alteration must meet the code's section R403, which calls for equipment sized with ACCA Manual S from an ACCA Manual J or other approved load calculation.

• Climate: Climate zone 4C (marine) under the Washington State Energy Code; design temperatures 17°F heating and 83°F cooling
• Utilities: Puget Sound Energy provides both electricity and natural gas in Kirkland
• Kirkland requires a mechanical permit when mechanical systems or fuel gas piping are installed, altered, relocated or replaced in existing buildings
• Under the Washington State Energy Code, new heating, cooling and duct systems that are part of an alteration must meet section R403
• Section R403.7 calls for equipment sized with ACCA Manual S from an ACCA Manual J or other approved load calculation
• Permits: Development Services Center (mechanical permits via MyBuildingPermit.com)

Weighing a heat pump against a furnace in Washington? Our heat pump vs gas furnace cost by state compares what each delivered heat for in Washington in 2024, and our guides to heat pump installation and furnace installation cover what each job involves. Our calculator turns Washington energy prices into a yearly heating estimate, and how to size a heat pump, AC or furnace explains the load calculation behind a quote.

Sources: WAC 51-11R-30100: Washington climate zones by county (King County 4C) · WAC 51-11R-60100: Table RC-1, outdoor design temperatures for Washington · City of Kirkland: utilities · City of Kirkland: mechanical, plumbing, electrical and fire permit process · WAC 51-11R-50300: alterations, section R503.1.2 · WAC 51-11R-40360: equipment sizing, section R403.7

Furnace Replacement and Heat Pumps in Kirkland

Washington's residential energy code, in force since March 15, 2024, does not require a heat pump when a furnace is replaced. A section that would have required heat pump space heating was removed before the code took effect, and section R403.13 is now marked reserved, so both a new gas furnace and a heat pump remain open to Kirkland homeowners. Kirkland's 17°F heating design temperature makes a heat pump's cold-weather output worth checking: ENERGY STAR's cold-climate criteria set a coefficient of performance of at least 1.75 at 5°F and heating capacity at 5°F of at least 70% of the capacity at 47°F. As of October 2026, Puget Sound Energy pays $1,500 toward an air-source heat pump for single-family electric customers whose main heat is electric resistance, such as baseboard or wall heaters. PSE requires a contractor who is a PSE Recommended Energy Professional or Trade Ally, and homes that already have a heat pump serving the main living area are excluded, so ask each contractor you speak with whether they are on PSE's list.

• Washington State Energy Code, effective March 15, 2024: no heat pump requirement when a furnace is replaced; section R403.13 is reserved
• Kirkland design temperatures from the state code: 17°F heating, 83°F cooling
• Puget Sound Energy, as of October 2026: $1,500 toward an air-source heat pump replacing electric resistance heat, installed by a PSE Recommended Energy Professional or Trade Ally

Sources: Washington State Register WSR 24-03-084 (R403.13 removed, effective March 15, 2024) · WAC 51-11R-40392: section R403.13, reserved · WAC 51-11R-60100: Table RC-1, outdoor design temperatures for Washington · ENERGY STAR: air-source heat pump key product criteria (cold climate) · Puget Sound Energy: electric resistance to air-source heat pump conversion

Furnace and heat pump installation in Kirkland gets busier as the weather turns — if your current system is already struggling, a furnace replacement booked now usually beats one booked mid-cold-snap. Our guide to when to replace your furnace covers the warning signs and what a replacement costs.

HVAC Installation Cost in Kirkland

HVAC installation costs in Kirkland depend on the system type and capacity, the condition of the ductwork, any venting or electrical changes, and the local permit fee, so the reliable figure is a written quote for your home. When comparing quotes, check that each lists the equipment model numbers, the load calculation, the permit and removal of the old equipment.Request a free quote to get started.