HVAC permits in Redmond: fees, timeline & requirements (2026)
Everything you need to know about pulling an HVAC / mechanical permit in Redmond, Washington — when one is required, what it costs, how long review takes, what documents are required, and which inspections you can expect. Cited to Redmond Planning and Community Development.
Free lookup, no account needed — the office that issues the permit at your address, cited to Redmond's source.
When does HVAC work need a permit in Redmond?
Mechanical systems require a separate trade permit; all trade permits are separate and not included in the building permit.
In the source's own words
“NOTE: All trade permits are separate and not included in the building permit.”Source ↗verified 2026-05-29
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 Redmond?
Kolmo Construction is a licensed Washington general contractor — KOLMOL*753JS, active through April 10, 2027, bonded and insured — working throughout Redmond 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 Redmond 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 Redmond — we'll confirm which office issues the permit at that address.
- 2. Assemble submittals: the 4 documents under Required submittals above.
- 3. Submit through the city portal: Redmond Planning and Community Development ↗
- 4. Track review. Respond to reviewer comments promptly.
- 5. Pay issuance fees (Redmond'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 Redmond — FAQ
When does HVAC work need a permit in Redmond?
Mechanical systems require a separate trade permit; all trade permits are separate and not included in the building permit.
How much does an HVAC / mechanical permit cost in Redmond?
Redmond's mechanical permit is the $140.71 base fee plus $48.25 for each furnace or air handler, $48.25 for each outdoor compressor, air conditioner or heat pump, $38.60 for each vent of a new or remodeled duct system, $48.25 for gas piping to up to 4 outlets and $48.25 for a gas water heater. Plan review, where it applies, is 25% of the permit fee for building review and $105.04 for Planning. A new circuit needs a City electrical permit, $140.71 plus $96.02 for 0 to 3 circuits. A 4% technology surcharge applies (2026 fee schedules). Apply through the Redmond ePermitting Service, REPS (https://cityofredmondwa-energovweb.tylerhost.net/apps/selfservice); plan-reviewed permits go through Plan Review Online, and the How to Apply page (https://www.redmond.gov/462/How-to-Apply) says which.