Window replacement permits in Kent: fees, timeline & requirements (2026)
Everything you need to know about pulling a window replacement permit in Kent, Washington — when one is required, what it costs, how long review takes, what documents are required, and which inspections you can expect. Cited to Kent Economic and Community Development.
Free lookup, no account needed — your lot polygon, zoning, setbacks and overlays, cited to Kent's source.
When does a window replacement need a permit in Kent?
Window permits are processed as Minor Work and need a site plan and specifications; typically processed within 2–3 business days.
In the source's own words
“Window permits need a site plan and specifications.”Source ↗verified 2026-05-29
Required submittals
- If new/enlarged opening: header schedule, structural detail, WSEC NFRC sticker for U-factor
Inspection sequence
- Rough-opening inspection (if structural)
- Final
Contractor specialties needed
General contractor
Who can do this work in Kent?
Kolmo Construction is a licensed Washington general contractor — KOLMOL*753JS, active through April 10, 2027, bonded and insured — working throughout Kent and King County. Kolmo prepares the drawings and submittals, files the window replacement permit with Kent Economic and Community Development, carries the project through review and inspections, and performs the construction. Call (206) 410-5100 for a Kent window replacement quote.
Notes & caveats
WSEC R402.4: replacement windows must meet U-factor ≤0.30 (climate zone 4C/5B applicable to most WA). Egress sleeping rooms must retain compliant opening (R310).
Window replacement permit fee estimate in Kent
Worked example for an $8,000 window replacement project (building permit). Your actual fee scales with project valuation.
| Building permit fee | $345.25 |
| Plan review | $224.41 |
| Technology surcharge | $17.09 |
| WA state surcharge | $6.50 |
| Estimated total | $593.25 |
Where window work needs a building permit in Kent, it is priced on the value of the work: $52.82 up to $500, $52.82 for the first $500 plus $6.88 for each $100 more up to $2,000, and $155.95 for the first $2,000 plus $31.55 for each $1,000 more up to $25,000. Intake fees are billed once the submittal is complete, and the rest before the permit issues. Apply through the City of Kent Permit Portal (sso.kentwa.gov). Computed from Kent's adopted fee schedule · source ↗. Land use, fire and engineering review, intake, impact and utility fees, where they apply, are charged separately.
How to apply yourself
- 1. Confirm your parcel's zoning & overlays. Run an address lookup for your Kent window replacement — we'll pull your specific lot polygon, zoning, setbacks, and any shoreline/ECA/historic overlays.
- 2. Assemble submittals (1).
- 3. Submit through the city portal: Kent Economic and Community Development ↗
- 4. Track review (typical: 2–3 days). Respond to reviewer comments promptly.
- 5. Pay issuance fees (about $593 for an $8,000 project) and pick up the permit. Inspection card travels with the job.
Or have Kolmo do it
Kolmo prepares the drawings and submittals, files with Kent Economic and Community Development, handles reviewer comments, and builds the project.
Licensed WA general contractor KOLMOL*753JS · bonded & insured
Window replacement permits in Kent — FAQ
When does a window replacement need a permit in Kent?
Window permits are processed as Minor Work and need a site plan and specifications; typically processed within 2–3 business days.
How much does a window replacement permit cost in Kent?
For a $8,000 window replacement project, the estimated Kent permit fee is about $593.25 (building fee $345.25 + plan review $224.41 + surcharges) from Kent's adopted fee schedule. Land use, fire and engineering review, intake, impact and utility fees, where they apply, are charged separately.
How long does Kent take to review a window replacement permit?
Typical review window: 2–3 days.