HVAC permits in Kirkland: fees, timeline & requirements (2026)
Everything you need to know about pulling an HVAC / mechanical permit in Kirkland, Washington — when one is required, what it costs, how long review takes, what documents are required, and which inspections you can expect. Cited to Kirkland Planning and Building Department.
Free lookup, no account needed — the office that issues the permit at your address, the mapped areas on the lot, cited to Kirkland's source.
When does HVAC work need a permit in Kirkland?
A mechanical permit is required for new/replaced mechanical equipment and gas piping. Fuel-gas piping and new fuel-gas fixtures require a Mechanical Permit (not a plumbing permit).
From Kirkland's own code
“Any owner or owner’s authorized agent who intends to construct, enlarge, alter, repair, move, demolish, or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, remove, convert or replace any electrical, gas, mechanical or plumbing system, the installation of which is regulated by this chapter or one of the technical codes, or to cause any such work to be performed, shall first make application to the building official and obtain the required permit.”Source ↗verified 2026-10-18
What Kirkland says in its own permit handout
From mechanical permit checklist, published by Kirkland. This is the jurisdiction's own guidance on its permit process, not the ordinance text — where the two differ, the code governs.
“Mechanical permits are required when installing, altering, relocating or replacing mechanical systems or fuel gas piping in existing or new buildings (other than new single family residences).”Checklist ↗read 2026-09-05
Required submittals
- Equipment specs (model #, capacity)
- Manual J/S/D for new system
- Gas piping diagram if applicable
- Electrical permit cross-reference
Inspection sequence
- Rough-in / gas pressure test
- Final
Contractor specialties needed
Mechanical contractor
Who can do this work in Kirkland?
Kolmo Construction is a licensed Washington general contractor — KOLMOL*753JS, active through April 10, 2027, bonded and insured — working throughout Kirkland and King County. Kolmo manages the HVAC / mechanical job from start to finish: a licensed HVAC subcontractor performs the work and the permit, and Kolmo coordinates the scope, schedule, inspections and any related construction. Call (206) 410-5100 for a Kirkland HVAC / mechanical quote.
Notes & caveats
Heat pump or AC condensate must drain per IMC. Combustion appliance: combustion air, venting, gas piping leak test. WA HB 1185 (HEEHRA): heat-pump rebates available through energy.wa.gov.
How to apply yourself
- 1. Check who issues the permit. Run an address lookup for your HVAC work in Kirkland — we'll confirm which office issues the permit at that address and whether the lot is in a critical area or a flood hazard area, which Kirkland's rule turns on.
- 2. Assemble submittals: the 4 documents under Required submittals above.
- 3. Submit through the city portal: Kirkland Planning and Building Department ↗
- 4. Track review. Respond to reviewer comments promptly.
- 5. Pay issuance fees (Kirkland's fee schedule sets them) and pick up the permit. Inspection card travels with the job.
Or have Kolmo do it
Kolmo runs the job: a licensed HVAC subcontractor does the HVAC / mechanical work and pulls the permit, and Kolmo coordinates the scope, schedule, inspections and any related construction.
Licensed WA general contractor KOLMOL*753JS · bonded & insured
HVAC permits in Kirkland — FAQ
When does HVAC work need a permit in Kirkland?
A mechanical permit is required for new/replaced mechanical equipment and gas piping. Fuel-gas piping and new fuel-gas fixtures require a Mechanical Permit (not a plumbing permit).
How much does an HVAC / mechanical permit cost in Kirkland?
Kirkland's mechanical permit for work on an existing house is $121 for each appliance, new duct system or gas piping, $364 at the most, and $36 for thermostat wiring; for new construction it is 8% of the building permit fee. Where plans are reviewed, plan review is 25% of the permit fee. A new circuit needs a City electrical permit, priced on its value: $83 up to $250, and $83 plus $12 for each $100 more up to $2,000. A 3.5% technology fee is added to the City's permit and plan review fees (Kirkland Building Services Fees, 2026). Apply via https://mybuildingpermit.com.