Chimney questions, answered — South Seattle.

Once a year, under the standard the chimney trade follows. CSIA, the chimney trade's safety institute, sends homeowners to NFPA 211, a standard that calls for a yearly look at chimneys, fireplaces and vents to confirm they are sound, free of deposits and clear of anything that can burn, and that holds for a flue lit only a few times a season. Sweeping is judged by the deposit itself: for a masonry fireplace the institute sets the sweeping point at 1/8 inch of soot, earlier when glazed creosote appears. Source: CSIA homeowner page (Chimney Safety Institute of America) (https://www.csia.org/homeowner-resources, accessed October 4, 2026).

In the chimney, the flue or the burner. The State Fire Marshal reports that those three accounted for 77% of residential heating fires in 2024, and that heating sources were tied to 6 deaths in Washington the year before. It asks for a yearly professional cleaning and inspection; for ashes, let them go fully cold, then keep them outside in a metal can with a lid, away from the house. Source: Office of the State Fire Marshal (Washington State Patrol), heating and fireplace safety page (https://wsp.wa.gov/fireplace-and-home-heating-safety, accessed October 4, 2026).

The Puget Sound Clean Air Agency, for King County and three neighboring counties. Under Stage 1 no open wood fireplace may burn, and no stove or insert without certification. Stage 2 goes further and adds certified stoves and inserts and pellet stoves, so nothing that burns wood or pellets may run. The agency can go straight to Stage 2 when pollution rises fast. Washington's curtailment rule, WAC 173-433-150, allows a fire already burning three hours: after that, visible smoke from the chimney counts as evidence of illegal burning. Sources: Clean Air Agency (Puget Sound), how its burn bans work (https://pscleanair.gov/172/About-Air-Quality-Burn-Bans, accessed October 4, 2026); WAC 173-433-150, curtailment of burning (Cornell Legal Information Institute) (https://www.law.cornell.edu/regulations/washington/WAC-173-433-150, accessed October 4, 2026).

Still, stagnant air that lets fine particles build up. A King County Stage 1 follows a forecast that, within two days, a day's average of fine particles will pass 35 micrograms per cubic meter. Bans come mostly in fall and winter and can last from a few days to a few weeks. The status is posted on the agency's website, given by phone at 800-595-4341 and sent to anyone who signs up for alerts. Sources: Clean Air Agency (Puget Sound), how its burn bans work (https://pscleanair.gov/172/About-Air-Quality-Burn-Bans, accessed October 4, 2026); Clean Air Agency (Puget Sound), current status of burn bans (https://pscleanair.gov/168/Air-Quality-Burn-Ban-Status, accessed October 4, 2026).

Only with an exemption granted before the ban, and the bar is high. The agency's heat-source exemption is granted only on application, and it defines adequate as a system able to hold 70°F in every lived-in room, with the thermometer three feet off the floor; building codes ask for the same, so most Seattle houses cannot qualify. An exempt household still may not send visible smoke up the chimney while the ban lasts. Sources: Clean Air Agency (Puget Sound), the heat-source exemption (https://pscleanair.gov/171/No-Other-Adequate-Source-of-Heat, accessed October 4, 2026); Clean Air Agency (Puget Sound), questions on violations and exemptions (https://pscleanair.gov/FAQ.aspx?TID=19, accessed October 4, 2026); Clean Air Agency (Puget Sound), how its burn bans work (https://pscleanair.gov/172/About-Air-Quality-Burn-Bans, accessed October 4, 2026).

Dry, seasoned wood or manufactured logs, and nothing else. WAC 173-433-120 rules out household trash, any treated lumber, plastic and rubber, paint, chemicals, petroleum waste and asphalt products, dead animals, and whatever normally makes thick smoke or a bad smell. A smoke limit holds in every season: six straight minutes in any hour with smoke past 20 percent opacity breaks it, and the agency's inspectors are trained to judge it by eye. Sources: Clean Air Agency (Puget Sound), wood burning and the law (https://pscleanair.gov/170/Legal-Overview, accessed October 4, 2026); WAC 173-433-120, fuels that are prohibited (Cornell Legal Information Institute) (https://www.law.cornell.edu/regulations/washington/WAC-173-433-120, accessed October 4, 2026).

Not by a separate rule. The Clean Air Agency's 2016 overview of the Duwamish Valley, the industrial corridor Georgetown sits in, traces most fine particles there to vehicles, trucks, trains, ships and industry, lists wood smoke from home heating as a further source, and names winter burn bans among the tools that keep wood-smoke levels down. The same county-wide bans apply there as everywhere else in Seattle. Sources: Clean Air Agency (Puget Sound), Duwamish Valley air overview of 2016 (https://www.pscleanair.gov/DocumentCenter/View/2295/Air-Quality-in-the-Duwamish-Valley-OverviewPDF, accessed October 4, 2026); Clean Air Agency (Puget Sound), how its burn bans work (https://pscleanair.gov/172/About-Air-Quality-Burn-Bans, accessed October 4, 2026).

Below a cost threshold, no, but two different figures are on the books, so ask SDCI for your job. Seattle's Director's Rule 5-2004, in effect since December 1, 2004 and still cited in SDCI Tip 303A of December 2021, says chimney repairs costing the owner under 4,000 dollars need no permit, though they must follow the rule. Under R105.2 of Seattle's 2021 residential code, minor repairs up to 6,000 dollars within six months skip the building permit, provided no load-bearing part is involved. One point is the same in both: once repairs reach below the top of the smoke chamber, the rule requires the smoke chamber and chimney to be rebuilt to current code under a permit, whatever the cost. Sources: City of Seattle Director's Rule 5-2004 on unreinforced masonry chimneys, in effect since December 1, 2004 (https://www.seattle.gov/dpd/codes/dr/DR2004-5.pdf, accessed October 4, 2026); SDCI Tip 303A on common residential code requirements, updated December 8, 2021 (https://seattle.gov/DPD/Publications/CAM/cam303a.pdf, accessed October 4, 2026); Seattle Residential Code (2021 edition), R105.2: work that needs no permit (https://www.seattle.gov/documents/Departments/SDCI/Codes/SeattleResidentialCode/2021SRCChapter1.pdf, accessed October 4, 2026).

Yes, when nothing structural changes. The Seattle Department of Construction and Inspections lists repointing a chimney with painting, roofing and siding as work that needs no permit, and the 2021 Seattle Residential Code names chimney repointing among exempt minor work. Seattle's chimney rule adds that old unreinforced masonry left in place during a repair is to be inspected and tuckpointed where it needs it. Sources: Seattle Department of Construction and Inspections, house additions and remodels (https://www.seattle.gov/sdci/permits/common-projects/house-additions-and-remodels, accessed October 4, 2026); Seattle Residential Code (2021 edition), R105.2: work that needs no permit (https://www.seattle.gov/documents/Departments/SDCI/Codes/SeattleResidentialCode/2021SRCChapter1.pdf, accessed October 4, 2026); City of Seattle Director's Rule 5-2004 on unreinforced masonry chimneys, in effect since December 1, 2004 (https://www.seattle.gov/dpd/codes/dr/DR2004-5.pdf, accessed October 4, 2026).

Reinforcement, bracing, removal or a factory-built chimney: since the 2001 earthquake the city has required one of those for damaged unreinforced chimneys. Director's Rule 5-2004 lets the top 2 feet be rebuilt as they were; past that, the work is done in reinforced masonry or switches to a listed metal chimney. A chimney rising more than 12 feet above the roof line needs a licensed engineer's design, and one standing more than 3 feet above the roof must be supported at two points. Source: City of Seattle Director's Rule 5-2004 on unreinforced masonry chimneys, in effect since December 1, 2004 (https://www.seattle.gov/dpd/codes/dr/DR2004-5.pdf, accessed October 4, 2026).

A mechanical permit from SDCI, and a separate one for any gas line. According to Tip 303A, a wood stove calls for its own furnace permit, and any fireplace or stove put in has to meet certified emission standards. On SDCI's mechanical permit page, a simple permit takes roughly two weeks, while one issued subject to field inspection can be ready the next day. Sources: SDCI Tip 303A on common residential code requirements, updated December 8, 2021 (https://seattle.gov/DPD/Publications/CAM/cam303a.pdf, accessed October 4, 2026); Seattle Department of Construction and Inspections, the mechanical permit (https://www.seattle.gov/sdci/permits/permits-we-issue-(a-z)/mechanical-permit, accessed October 4, 2026).

Inside the Columbia City Landmark District, yes. The district was designated in 1978, and the city requires a Certificate of Approval before it issues permits for any exterior change to a building there; its list runs from painting, signs and awnings to additions, demolition and interior work that affects the outside. A review committee looks at each application, so the certificate has to be part of the schedule. Source: Seattle Department of Neighborhoods, the Columbia City Landmark District (https://www.seattle.gov/neighborhoods/historic-preservation/historic-districts/columbia-city, accessed October 4, 2026).

Chimneys were the most common damage. A USGS open-file report found chimney damage on a third of the 30,000 houses that FEMA went through, about 15 million dollars of repairs. In a separate study, USGS and University of Washington researchers surveyed roughly 60,000 chimneys in about 50 square kilometers of the Seattle area and counted 1,556 with damage. The same USGS report documents widespread liquefaction in South Seattle, which the city's emergency office ties to the Duwamish and Rainier valleys. Sources: U.S. Geological Survey Open-File Report 03-211 on the Nisqually earthquake (https://pubs.usgs.gov/of/2003/ofr-03-211/NisquallyFinal.html, accessed October 4, 2026); U.S. Geological Survey, study of chimney damage around Seattle after the 2001 earthquake (https://www.usgs.gov/publications/chimney-damage-greater-seattle-area-nisqually-earthquake-28-february-2001, accessed October 4, 2026); Seattle Office of Emergency Management, earthquake hazard (https://www.seattle.gov/emergency-management/hazards/earthquake, accessed October 4, 2026).

Yes, and lint is the leading cause. The U.S. Fire Administration estimates about 2,900 home fires a year from clothes dryers nationwide, with some 100 injuries and 5 deaths, and puts failure to clean first among contributing factors, at 34 percent. Those fires run higher through fall and winter and peak in January. Source: U.S. Fire Administration, report on clothes dryer fires in homes (2008 to 2010 data) (https://www.usfa.fema.gov/downloads/pdf/statistics/v13i7.pdf, accessed October 4, 2026).

$99 plus tax per chimney. That covers the visit, the photographs and a written, itemized quote if anything needs work, and the amount does not change when the flue needs a camera. Approve the quote and the $99 plus tax you already paid is taken off the job.

It comes off the bill: approve the quote and the $99 plus tax visit fee is deducted from the job. Should you pass on the work, that fee simply covered the trip and the findings, and the photos and report are yours to keep.

Level 1 visual; Level 2 adds a full camera scan. Whichever level your chimney needs, every finding is photographed and handed to you in writing, with an itemized quote if something has to be fixed. Both levels are $99 plus tax, and no work goes on the calendar until you accept the quote.

Beacon Hill, Columbia City, Mount Baker, Seward Park, Georgetown, Rainier Valley, Rainier Beach, Othello, Hillman City and Brighton. All of them are inside the city of Seattle, in King County, Washington, and every one has a page with the services available there. Living just past the edge of those neighborhoods? Phone first, and we will say whether the address is within reach.

Book online: pick one of the times the calendar shows for your neighborhood and it is yours. If you would rather speak to someone, call (206) 984-4736. Confirmations and reminders then reach you by email and phone.

A sweep is $189–$449, a chimney repair from $425 and a relining from $1,900. The prices of all 12 services are on our price page. Your own figure comes in writing after the $99 plus tax visit, and nothing starts before you say yes.