Chimney work across King County, and how to find your page

Each page below covers what is genuinely different at that address: the housing age, the dominant chimney type, and the office that issues the permit.

• Seattle. The one city here with its own residential code and its own rule for repairing unreinforced masonry chimneys.
• Bellevue. Postwar housing where brick stacks and factory-built metal chimneys sit side by side.
• Renton. A split housing stock, from the older Highlands blocks down to the Cedar River flats.
• Kirkland. Mostly post-1970 housing, so as many factory-built chimneys as brick ones, plus wind-driven rain off the lake.
• Redmond. Late-twentieth-century chimneys and chase covers, and Redmond mailing addresses the county permits rather than the city.
• Shoreline. Mid-century crowns and clay tile liners, in a city older than the county median.
• Bothell. A city split by the King-Snohomish county line, so which county's burn-ban stage applies can change block to block.
• Issaquah. Young housing by county standards, so a framed chase is likelier than a brick crown.

King County holds 39 incorporated cities and towns, so not every address has a page. If yours is not listed, request an inspection and say where you are.

This is the thing worth knowing at county level. An incorporated address is permitted and inspected by its own city. An unincorporated one is permitted by King County, and the two paths do not overlap.

The county's permitting office

The King County Department of Local Services, Permitting Division issues building, mechanical, land use, and fire permits for unincorporated King County, most filed through MyBuildingPermit.com. It calls itself the city hall for some 250,000 residents, over an area it compares to Rhode Island.

Why a mailing address is not an answer

West King County, one of seven community service areas, alone covers Fairwood, East Renton, West Hill, North Highline, and East Federal Way — places that sit against a city without being in one. The county publishes an address lookup that settles it.

Which code applies out there

For applications deemed complete on or after March 15, 2024, unincorporated King County works to the 2021 Washington State Building Code, with the county's amendments in King County Code Titles 16 and 17.

Wood burning is regulated regionally, not by city. The Puget Sound Clean Air Agency issues and enforces air quality burn bans in King, Kitsap, Pierce, and Snohomish counties, and calls them countywide — so a ban covers every King County address at once, whatever your permitting office is.

• What triggers one here. As of 2026 a Stage 1 ban is called when fine-particle pollution is forecast to exceed a 24-hour average of 35 micrograms per cubic meter in King County. Pierce and Snohomish run on a lower number.
• Stage 1. No burning in a wood-burning fireplace, an uncertified stove, or an uncertified insert. Certified stoves and pellet stoves may still run.
• Stage 2. No burning in any fireplace, stove, insert, or pellet stove, certified or not.

City to city the housing changes; the weather does not. Sea-Tac's 1991-2020 normals record 39.34 inches of precipitation across about 156 days a year with measurable rain, roughly three quarters of it between October and March.

Brick and mortar draw water in through microscopic capillaries and dry by evaporation, so damage starts when a chimney never fully dries between wettings. Each city page takes that further for the housing it actually has.

• Sweeping and inspection. Creosote and debris removal, and inspections written to the NFPA 211 levels. A sweep is cleaning work; an inspection is what carries a level.
• Water control. Crown repair, cap and chase-cover fitting, flashing repair, leak diagnosis, and vapor-permeable waterproofing.
• Masonry. Repointing, partial rebuilds above the roof line, and full rebuilds, under the rules of whichever jurisdiction your address falls in.
• Venting. Liner installation and relining where a flue is unlined, damaged, or wrongly sized for the appliance.

The process does not change from one address to the next: photographs before and after, a written scope and price first, and nothing starts until you approve it. Unsure what you need? Start with an inspection.