Chimney questions, answered — North Seattle.

Yes, the yearly check applies however seldom the fireplace is lit. The Chimney Safety Institute of America points to NFPA 211 for this: once a year, each chimney, fireplace and vent is examined for structural soundness, for deposits and for clearances. How often it then needs sweeping is a separate question, and the inspection is what answers it. Source: CSIA, resources for homeowners (https://www.csia.org/homeowner-resources, accessed October 4, 2026).

An eighth of an inch is the mark CSIA gives for a masonry fireplace, and less than that when any of the deposit has glazed. Factory-built fireplaces get a stricter rule from the institute: sweep at any appreciable buildup. The kind of deposit matters as well. CSIA says crusty creosote comes off with rotary cleaning, whereas the gummy or glazed kind first needs a chemical treatment that alters its makeup, and only then will a brush move it. Source: CSIA, resources for homeowners (https://www.csia.org/homeowner-resources, accessed October 4, 2026).

Bring in a professional once a year to inspect and clean both the chimney and the fireplace. That request opens the notice on heating safety that the Fire Marshal's Office put out on September 21, 2026, a notice that also counts six deaths in Washington from home heating sources over the year before. Its other advice is practical: a three-foot zone around the hearth that children stay out of, a screen or glass doors, a cap on the chimney, working smoke and carbon monoxide alarms. Ashes should cool fully, then go into a metal container with a tight lid that is kept outdoors and away from the house. Source: State Fire Marshal's Office, heating-safety notice (https://wsp.wa.gov/fireplace-and-home-heating-safety, accessed October 4, 2026).

One regional body does, the Puget Sound Clean Air Agency, and a single declaration covers the whole city. The agency covers four counties (King, Snohomish, Pierce and Kitsap counties), so Ballard, Fremont, Greenwood, Phinney Ridge, Green Lake, Wallingford, Northgate, Ravenna, Wedgwood and Maple Leaf all fall under the same ban on the same day. A fire-safety burn ban is another matter and comes from the fire marshal. For the status of the day, the agency keeps a page online and a phone line at 800-595-4341. Sources: Clean Air Agency, burn bans explained (https://pscleanair.gov/172/About-Air-Quality-Burn-Bans, accessed October 4, 2026); Clean Air Agency, today's ban status (https://pscleanair.gov/168/Air-Quality-Burn-Ban-Status, accessed October 4, 2026).

Stage 1 shuts down wood fireplaces, and with them uncertified wood stoves and uncertified inserts; Stage 2 goes further and stops every wood-burning device, certified ones and pellet stoves included. So a certified stove, a certified insert or a pellet stove may keep running in Stage 1 and must stop in Stage 2. One exception exists at both stages: a household whose exemption was approved in advance, wood being the sole adequate heat it has. Sources: Clean Air Agency, burn bans explained (https://pscleanair.gov/172/About-Air-Quality-Burn-Bans, accessed October 4, 2026); Clean Air Agency, burn ban questions (https://pscleanair.gov/FAQ.aspx?TID=19, accessed October 4, 2026).

A forecast level, not one already measured: a 24-hour average of fine particles predicted to rise past 35 micrograms per cubic meter within the next two days. That is the King County trigger the Puget Sound Clean Air Agency publishes. In its 2024 data summary the agency names wood smoke from home heating as the region's main winter source of fine-particle pollution. Sources: Clean Air Agency, burn bans explained (https://pscleanair.gov/172/About-Air-Quality-Burn-Bans, accessed October 4, 2026); Clean Air Agency, 2024 data summary (https://pscleanair.gov/732/2024-Data-Summary, accessed October 4, 2026).

Stop adding fuel at once. WAC 173-433-150 requires anyone already burning to withhold new fuel when a ban is declared, and it treats smoke that is still visible from the chimney three hours later as prima facie evidence of a violation. For as long as the ban lasts no chimney may show smoke, a certified stove's included, and outdoor burning ends too, recreational wood and charcoal fires with it. When an agency inspector witnesses a violation, the owner of the property receives a Notice of Violation. Sources: WAC 173-433-150, on Cornell LII (https://www.law.cornell.edu/regulations/washington/WAC-173-433-150, accessed October 4, 2026); Clean Air Agency, burn bans explained (https://pscleanair.gov/172/About-Air-Quality-Burn-Bans, accessed October 4, 2026); Clean Air Agency, burn ban questions (https://pscleanair.gov/FAQ.aspx?TID=19, accessed October 4, 2026).

Only with an exemption the Clean Air Agency approved before the ban started. The agency calls it 'No Other Adequate Source of Heat' and defines adequate heat as a system that can hold 70°F, measured three feet off the floor, in the rooms people live in. A furnace that works but costs a lot to run does not qualify a home. An exempt household is still held to the no-visible-smoke rule while the ban is on. Sources: Clean Air Agency, sole-heat exemption (https://pscleanair.gov/171/No-Other-Adequate-Source-of-Heat, accessed October 4, 2026); Clean Air Agency, burn ban questions (https://pscleanair.gov/FAQ.aspx?TID=19, accessed October 4, 2026); Clean Air Agency, burn bans explained (https://pscleanair.gov/172/About-Air-Quality-Burn-Bans, accessed October 4, 2026).

Seasoned dry firewood and manufactured logs, and nothing else. Plastics, rubber, garbage, paints, chemicals and treated wood are on the banned list of WAC 173-433-120, and the agency adds paper beyond the amount needed to get the fire started. The smoke has a ceiling on every day of the year: an opacity of 20 percent, which may not be exceeded for six consecutive minutes of any hour. Smoke that reaches the neighbors is a nuisance the agency can act on under Section 9.11 of its Regulation I. Sources: Clean Air Agency, wood burning rules (https://pscleanair.gov/170/Legal-Overview, accessed October 4, 2026); WAC 173-433-120, on Cornell LII (https://www.law.cornell.edu/regulations/washington/WAC-173-433-120, accessed October 4, 2026).

Check for an EPA label and count the doors. By the Clean Air Agency's rule of thumb, a label with one glass door suggests a certified stove; two solid metal doors, or two glass ones, usually mean an uncertified one. Washington does not allow an uncertified stove to be sold or given away (WAC 173-433-100). Recycling is the route the agency offers: it pays King County homeowners who turn in a working wood stove or insert that is uncertified or short of the 2020 EPA standard. Open masonry fireplaces, pellet stoves and gas units are excluded, the owner removes and delivers the stove, and the program page states the current payment. Sources: Clean Air Agency, burn ban questions (https://pscleanair.gov/FAQ.aspx?TID=19, accessed October 4, 2026); WAC 173-433-100, on Cornell LII (https://www.law.cornell.edu/regulations/washington/WAC-173-433-100, accessed October 4, 2026); Clean Air Agency, stove recycling (https://pscleanair.gov/409/Wood-Stove-Recycling-Program, accessed October 4, 2026).

No, it was a wildfire measure taken by the Governor. On August 1, 2026 the Governor's proclamation declared a statewide wildfire emergency together with a burn ban that stayed in force until September 30, 2026; by then roughly 425,000 acres had gone up in over 1,000 fires, a total not seen since 2021. Air quality bans are a different tool. The Puget Sound Clean Air Agency calls those from a fine-particle forecast, and they are the ones with Stage 1 and Stage 2 limits on fireplaces and stoves. Sources: Governor's office, August 1, 2026 proclamation (https://governor.wa.gov/news/2026/governor-ferguson-declares-statewide-wildfire-emergency-issues-statewide-burn-ban, accessed October 4, 2026); Clean Air Agency, burn bans explained (https://pscleanair.gov/172/About-Air-Quality-Burn-Bans, accessed October 4, 2026).

The 2021 Seattle Residential Code. It consists of the 2021 International Residential Code with Washington State and Seattle amendments, and the Seattle Department of Construction and Inspections (SDCI) enforces it. Statewide, the 2021 edition has applied since March 15, 2024. A newer edition is not close: SDCI does not expect to complete adoption of the 2024 Seattle codes before May 2027. Sources: SDCI, Residential Code page (https://www.seattle.gov/sdci/codes/codes-we-enforce-(a-z)/residential-code, accessed October 4, 2026); SDCI, Seattle code adoption (https://www.seattle.gov/sdci/codes/changes-to-code/2021-seattle-code-adoption, accessed October 4, 2026); State Building Code Council, 2021 codes date (https://sbcc.wa.gov/news/revised-effective-date-2021-codes-march-15-2024, accessed October 4, 2026).

Some of it does not, and for the rest the answer has to come from SDCI. Repointing a chimney appears by name on the city's list of work needing no permit, beside painting and cleaning. Minor repairs under the value limit SDCI publishes for a six-month period are exempt too, unless they touch load-bearing parts or the building envelope, and exempt work must still meet the code. Beyond that short list, SDCI's guide says most projects need a permit and names mechanical, gas, furnace and fireplace work. No SDCI page we read settles a liner, an insert or a rebuild above the roof in so many words, so we confirm the scope with SDCI before work of that kind begins. Source: SDCI, Do You Need a Permit? (https://www.seattle.gov/sdci/permits/do-you-need-a-permit, accessed October 4, 2026).

Roughly nine weeks for a standard mechanical permit, SDCI says, counting from the day of application. Simple jobs can qualify for a subject-to-field-inspection permit, which the department says can be issued inside 24 hours. The Seattle Services Portal is where an application is filed. SDCI's furnace handout adds three points: replacing or altering a furnace always needs a permit, a homeowner may pull that permit personally, and an inspection requested before 7:00 a.m. is scheduled for the same day. Sources: SDCI, mechanical permit (https://www.seattle.gov/sdci/permits/permits-we-issue-(a-z)/mechanical-permit, accessed October 4, 2026); SDCI, furnace permit handout (https://seattle.gov/documents/Departments/SDCI/Permits/FurnacePermitInfographic.pdf, accessed October 4, 2026).

It must be listed and labeled to a named test standard and installed the way its manufacturer instructs. Chapter 9 of the 2021 Seattle Mechanical Code assigns UL 1482 to fireplace inserts and room heaters, UL 737 to fireplace stoves, ASTM E1509 to pellet appliances and UL 127 to factory-built fireplaces. Whether a given installation also needs a permit is a question for SDCI, which we ask before the job is scheduled. Source: 2021 Seattle Mechanical Code, Chapter 9 (https://www.seattle.gov/documents/Departments/SDCI/Codes/MechanicalCode/2021SMCChapter9.pdf, accessed October 4, 2026).

Yes: inside the Ballard Avenue Landmark District, the district board has to grant a Certificate of Approval before the outside of a building is changed in any way. The city's list of what the board reviews includes exterior alterations, exterior painting, signs, awnings and demolition, and the board decides by the district ordinance, its guidelines and the Secretary of the Interior's Standards for Rehabilitation. The page we read gives no specific rule for repointing or cleaning masonry, so the question should go to the board before a mason is booked. Source: Seattle Department of Neighborhoods, landmark district page (https://www.seattle.gov/neighborhoods/historic-preservation/historic-districts/ballard-avenue-landmark-district, accessed October 4, 2026).

The city's construction department puts the chance of a damaging earthquake in Seattle at 86 percent over the next 50 years. Deep earthquakes at or above magnitude 6.0 return every 30 to 50 years or so, by the reckoning of the city's emergency managers, who add that the Seattle Fault, running east to west through the middle of the city, could produce one of up to magnitude 7.5. As for chimneys, FEMA's advisory singles out old unreinforced brick ones whose mortar has weakened: those fail first, and it warns that modern masonry chimneys built to code can suffer significant damage too. Sources: SDCI, unreinforced masonry buildings (https://www.seattle.gov/sdci/codes/changes-to-code/unreinforced-masonry-buildings, accessed October 4, 2026); Seattle Emergency Management, earthquake profile (https://www.seattle.gov/emergency-management/hazards/earthquake, accessed October 4, 2026); FEMA P-1024/RA1, masonry chimney advisory (https://www.fema.gov/sites/default/files/documents/fema_earthquakes_repair-of-earthquake-damaged-masonry-fireplace-chimneys-fema-p-1024-ra1.pdf, accessed October 4, 2026).

FEMA advises against rebuilding it as it was. Its advisory on earthquake-damaged masonry chimneys says an identical rebuild does little to reduce future damage or the risk to the people in the house. It prefers two routes: capping the chimney at the roof when the fireplace is being retired, or rebuilding from the top of the firebox with a light-framed enclosure built around a metal flue, with or without a fireplace insert. Full replacement by a factory-built unit is the option it rates best. Until a chimney can be dealt with, FEMA suggests spending as little time beside it as possible and, above all, not sleeping next to it. Source: FEMA P-1024/RA1, masonry chimney advisory (https://www.fema.gov/sites/default/files/documents/fema_earthquakes_repair-of-earthquake-damaged-masonry-fireplace-chimneys-fema-p-1024-ra1.pdf, accessed October 4, 2026).

The policy is written for unreinforced masonry buildings, and the SDCI page we read says nothing about the chimney of a wood-frame house. Seattle has identified more than 1,100 such buildings that pose a collapse hazard, with over 22,000 people living or working in them. In fall 2024 the city adopted code recognizing an 'Alternate Method' for retrofitting them. Compliance is voluntary for now; SDCI plans a mandatory ordinance, announced ahead of time with its requirements and timelines, once supporting resources are in place. Sources: SDCI, unreinforced masonry buildings (https://www.seattle.gov/sdci/codes/changes-to-code/unreinforced-masonry-buildings, accessed October 4, 2026); Seattle Emergency Management, earthquake profile (https://www.seattle.gov/emergency-management/hazards/earthquake, accessed October 4, 2026).

No, charcoal must never be burned indoors. Seattle's windstorm hazard profile notes that people have died in power outages after lighting it inside for warmth. In a major Puget Sound windstorm, the same profile says, winds hold at 60 to 70 mph and gust as high as 90, and it attributes much of the structural damage to falling trees. The 2006 storm cut power to 49 percent of Seattle City Light customers; 95 percent were reconnected within two days, the rest took up to a week. Source: Seattle Emergency Management, windstorm profile (https://www.seattle.gov/emergency-management/hazards/windstorms, accessed October 4, 2026).

Yes: more clothes dryer fires trace back to a failure to clean than to any other factor. The U.S. Fire Administration estimated 2,900 of those fires a year in residential buildings for 2008 to 2010, causing roughly five deaths and about 100 injuries annually. Failure to clean was behind 34 percent of them, and in 28 percent the first thing to catch was dust, fiber or lint. January is the month with the most. Source: U.S. Fire Administration, dryer fire report (https://www.usfa.fema.gov/downloads/pdf/statistics/v13i7.pdf, accessed October 4, 2026).

Filter the air in one room and close off outside air. During a smoke episode the regional air agency's advice is HEPA filtration, or failing that a MERV-13 filter fixed to a box fan, plus one room set aside as the clean room and fresh-air intakes kept shut; for masks, it says only N95 or N100 types protect. Public Health – Seattle & King County keys its response to the Air Quality Index, with early warnings at 101 to 150, cleaner-air sites at 151 to 200 and outdoor events cancelled at 201 to 300. The agency describes the years since 2015 as a period of unprecedented wildfire smoke, although 2024 went by without any. Sources: Clean Air Agency, wildfire smoke (https://pscleanair.gov/517/Wildfire-Smoke, accessed October 4, 2026); Public Health – Seattle & King County, smoke response (https://kingcounty.gov/en/dept/dph/health-safety/safety-injury-prevention/emergency-preparedness/personal-preparedness/wildfire-smoke/public-health-response, accessed October 4, 2026); Clean Air Agency, 2024 data summary (https://pscleanair.gov/732/2024-Data-Summary, accessed October 4, 2026).

Look the company up in the verify tool of the Department of Labor & Industries. Washington requires contractors to register with L&I, and registration comes with a bond, higher for a general contractor than for a specialty one, and with liability insurance. For work in Seattle, SDCI adds that a firm may need a Seattle business license even when its office is outside the city. Sources: Washington L&I, contractor registration (https://lni.wa.gov/licensing-permits/contractors/register-as-a-contractor/, accessed October 4, 2026); SDCI, mechanical permit (https://www.seattle.gov/sdci/permits/permits-we-issue-(a-z)/mechanical-permit, accessed October 4, 2026).

$99 plus tax per chimney, at either of the two inspection levels. The visit produces photographs and written findings, plus a written quote whenever something needs repair. Once that quote has your approval, we take the $99 plus tax off the total of the job.

Yes. Once you approve the written quote, the $99 plus tax paid at the visit is deducted from that job. If you choose not to go ahead, the fee has covered the visit itself: the technician's time at your house, the photographs and the written list of findings, which stay with you in both cases.

Level 1 visual; Level 2 adds a full camera scan. Which one applies is decided at the chimney, by what the technician can and cannot see from the firebox and the roof. Photographs and written findings follow in both cases, and both are $99 plus tax.

Ballard, Fremont, Greenwood, Phinney Ridge, Green Lake, Wallingford, Northgate, Ravenna, Wedgwood and Maple Leaf. That makes 10 neighborhoods in North Seattle, every one inside the city of Seattle and King County, each with a page of its own on this site. If your street lies just past their edges, phone us first; we will say whether a crew can get to it.

Book online: the calendar lists the openings for your neighborhood, and picking one holds it for you. To speak with someone instead, call (206) 429-6308. From then on, confirmations and anything else about the visit arrive by email and phone.

A sweep is $209–$459, a cap installed on the chimney $265–$850, and a flue relining from $1,900. All 12 of our services are priced on one page. Your own chimney gets its figure in writing once the $99 plus tax visit is done, and no work starts until you accept it.