Chimney Inspection · Seattle, WA

Which chimney inspection level a Seattle house calls for

An inspection level is set by the circumstance, not by a menu. In Seattle three circumstances come up far more than the rest: a property changing hands, a shake or a windstorm, and a fireplace someone has just inherited and wants to light.

What differs here is what the findings then have to answer. Seattle constrains how an unreinforced brick chimney may be repaired, so the report is not only a condition record — it is the document that tells you which paths are still open.

Reviewed by Chimney4u editorial team · Last updated 2026-08-27

Why a shake puts your chimney into Level 2 territory

NFPA 211 names a weather or seismic event likely to have caused damage as a circumstance calling for a Level 2 inspection, alongside a chimney fire, a sale, a reline, and a change of appliance. In most of the country that clause is theoretical. In Seattle it is not.

Seattle is assigned Seismic Design Category D2 in the residential code, which is exactly why masonry chimneys built or rebuilt here have to be reinforced and anchored to the house. The City's own chimney rule cites earthquake vulnerability as its reason for existing, and points at the record: in the 2001 Nisqually earthquake, two-thirds of the Seattle buildings deemed unsafe were unreinforced masonry.

A chimney is the most exposed unreinforced masonry on a wood-frame house: tall, slender, top-heavy, with nothing tying it back. So an event you felt but saw no damage from is still a reason to look, and the looking has to reach the flue liner rather than the exterior brick alone.

When the house is changing hands

Sale or transfer of the property is itself a Level 2 circumstance under NFPA 211. In Seattle that lands on an unusually old housing stock: roughly one housing unit in five was built in 1939 or earlier and about a third before 1960, so an original chimney frequently predates the lining provisions now in the Seattle Residential Code and nobody in the transaction knows what is inside the flue.

Book it early. Two Seattle-specific things stretch the timeline once a finding exists: repairs to an unreinforced masonry stack generally require a permit, and in one of the eight designated historic districts exterior changes also need a Certificate of Approval, separate from that permit.

The order is inspection, then written scope, then whichever approvals it needs — which is more than a contingency period's last week usually holds.

What a Seattle report has to establish beyond condition

Elsewhere a report describes damage and recommends a fix. Here the fix is constrained: under SDCI Director's Rule 07-2025, effective January 8, 2026, an altered or repaired unreinforced masonry chimney must come back as reinforced masonry, be replaced with a factory-built metal chimney, or be removed. Unreinforced brick is not a compliance path.

The rule also sets a depth boundary that a report can either capture or miss: where repairs reach below the top of the smoke chamber, the smoke chamber and chimney have to be rebuilt entirely to current code. That makes one question worth answering explicitly during the inspection rather than during demolition.

How far down the damage actually goes. Above the roofline, between the roof and the smoke chamber, or below the top of the smoke chamber. The three answers put you in three different projects.
Whether the flue is the problem or the masonry is. A sound stack with a cracked liner is a relining conversation. Failing brick with an intact liner is a masonry one. Both at once is a rebuild conversation.
What the liner is, and whether it suits what is connected. A Level 2 evaluates liner material and flue size against the appliances actually attached — the question a 1920s chimney with a modern insert in it usually cannot answer from the ground.

Before the first fire in a fireplace you inherited

If you bought the house, the sale already set a Level 2 as the minimum. If you did not — a family house, or a fireplace that has sat unused for a decade — the annual Level 1 is the floor, and it escalates the moment an appliance has been swapped in since anyone last looked.

A long-unused flue here collects nesting material, because an uncapped chimney is an open shaft in a wet climate, and moisture damage, because masonry that never fully dries between wettings deteriorates from the inside. Neither is visible from the hearth.

Local considerations in Seattle

Seattle sits in Seismic Design Category D2, the assignment that triggers the chimney reinforcing and anchorage requirements in the residential code, which is why a seismic event here is a realistic Level 2 trigger rather than a theoretical one.
In the 2001 Nisqually earthquake, two-thirds of the Seattle buildings deemed unsafe were unreinforced masonry, and the City's chimney rule cites earthquake vulnerability as its reason for existing.
Roughly one Seattle housing unit in five was built in 1939 or earlier and about a third before 1960, so an original flue commonly predates the Seattle Residential Code's lining provisions.
Director's Rule 07-2025 requires an altered or repaired unreinforced masonry chimney to be rebuilt in reinforced masonry or replaced with a factory-built metal chimney, and requires a full rebuild to current code where repairs reach below the top of the smoke chamber.
Eight designated historic districts sit inside the city, and exterior changes within them need a Certificate of Approval separate from any building permit — a second approval that lengthens a repair timeline on a sale.
An existing unreinforced brick chimney is not automatically a violation, and Seattle's URM Retrofit Program targets loadbearing masonry buildings rather than wood-frame houses with brick chimneys.

What the job includes

Establishing which NFPA 211 level your circumstance calls for, and telling you why before the visit is scheduled
Examination of the readily accessible chimney structure and flue, and of the connected appliance and its connection
At Level 2, the accessible chimney runs inside attics, crawl spaces, and basements that can be entered without demolition
At Level 2, a camera examination of the internal flue liner surfaces, verification of clearance to combustibles, and evaluation of liner material and flue size against the appliances actually connected
A written record of how far any damage extends, including whether it reaches below the top of the smoke chamber
Photographs of the chimney, and a written report naming the level completed and anything that could not be reached
A plain conversation separating what is urgent from what can wait and what does not need doing

What it does not include

Sweeping. An inspection reports on deposits; removing them is a separate job, and heavy buildup can be what forces a second visit
Any repair, reline, or masonry work. Findings come back as a written scope and price you approve before anything is scheduled
A permit determination. SDCI decides what your address and scope require; requirements change and depend on the property, so confirm with SDCI before work starts
Historic district review, which runs through the Seattle Department of Neighborhoods rather than through an inspection report
Structural engineering. Where a chimney needs an engineered assessment or design, that comes from a structural engineer
Opening up walls, chases, or ceilings, which is a Level 3 scope quoted on its own, with the closing and finishing separate again
Any statement about insurance coverage — conditions can be documented, but the claim decision belongs to your insurer

What to look for

You felt an earthquake and the chimney looks fine from the yard: Looking fine from the ground is not an evaluation. The standard names a seismic event as a Level 2 circumstance whether or not damage is visible.
Brick or mortar fragments on the roof or in the gutters after a storm or a shake: Material has come off the stack. On an unreinforced chimney that is a reason to look before the next fire, not after.
You are under contract on a Seattle house with an original chimney and no inspection record: Sale or transfer is a Level 2 circumstance, and in this housing stock an unrecorded chimney usually means an unknown liner.
An insert or stove was fitted into an old fireplace and nobody scanned the flue afterward: A dissimilar appliance is its own Level 2 circumstance, and the flue may be the wrong size or lining for what is now attached.
The chimney has not been used in years and has no cap: An open flue in a wet climate collects nesting material and rain. Both are reasons to inspect before a first fire.
A visible lean, or a gap opening between the chimney and the wall: Out-of-plane movement on an unreinforced stack. That is a structural question and should be looked at rather than watched.

What changes the price

We do not publish a headline figure, because it would be a guess about your chimney. These are the things that genuinely move the number, and we put a real one in writing after we have looked.

The level the circumstance calls for: A Level 1 is a visual examination of readily accessible areas. A Level 2 adds accessible attic, crawl space, and basement runs, roof access, and a required camera scan. A Level 3 opens concealed areas and is quoted on its own.
How many flues the stack carries: A Level 2 covers every flue and its connected appliances, so the shared fireplace-and-furnace chimney common in older Seattle houses is more work than a single-flue stack.
Roof access on a Seattle lot: Steep pitch, height, moss, a wet roof, or a hillside setback that dictates where a ladder can stand all change setup time and the equipment involved.
Whether the flue can be scanned as found: Heavy deposits obscure the liner surface and may require sweeping before all areas can be inspected. That is separate work, and it decides whether this is one trip or two.
Appliance type and what has to be disconnected: An insert or stove with a connector to break, or a gas appliance, adds access work before anything can be seen.
Documentation depth: A report written to a purchase-and-sale deadline, or a photograph set built for an insurer or an engineer, is more work than a routine annual visit.

Chimney Inspection in Seattle — common questions

We felt an earthquake in Seattle. Does the chimney need to be inspected even if it looks fine?: NFPA 211 names a seismic event likely to have caused damage as a circumstance calling for at least a Level 2 inspection, and it does not condition that on visible damage. Seattle is assigned Seismic Design Category D2 in the residential code, which is why masonry chimneys built or rebuilt here must be reinforced and anchored, and the City's chimney rule points to the 2001 Nisqually earthquake, where two-thirds of the Seattle buildings deemed unsafe were unreinforced masonry. A Level 2 includes a camera examination of the flue liner, which is where cracking from a shake tends to show first.
The home inspector on our Seattle sale looked at the chimney. Is that the same as a Level 2?: Not usually. A whole-house inspection normally views the chimney from the ground and the firebox and does not examine the internal flue liner surfaces with image-scanning equipment, which NFPA 211 requires at Level 2. The standard makes sale or transfer of a property a Level 2 circumstance in its own right. Book it early: if the scan finds something, the repair path on an unreinforced masonry chimney in Seattle is governed by Director's Rule 07-2025 and generally requires a permit, so the scope and approvals need room in the calendar.
Our 1920s chimney is unreinforced brick. Will an inspection force us to bring it up to code?: No. The reinforcing and anchorage requirements in the residential code apply to chimneys that are built or rebuilt, so an existing unreinforced chimney is not automatically a violation, and Seattle's URM Retrofit Program targets loadbearing unreinforced masonry buildings rather than a wood-frame house with a brick stack. What changes the picture is altering or repairing the chimney: at that point Director's Rule 07-2025 applies. Requirements change and depend on the property, so confirm your own address and scope with SDCI before work starts.
We just bought a Seattle house and want to use the fireplace this winter. What should we book?: A Level 2, because the sale itself is a Level 2 circumstance under NFPA 211 and because the flue's history is unknown to you. It covers the accessible chimney runs in attics, crawl spaces, and basements, examines the internal liner surfaces with a camera, verifies clearances where they can be reached, and evaluates whether the liner and flue size suit what is actually connected. If deposits are heavy enough to hide the liner surface, a sweeping happens first and the scan follows it.
Will the inspection tell me whether I need a permit from SDCI?: It tells you the scope, which is the input to that question, but the determination belongs to the City. SDCI is the department that issues construction permits inside the city limits, Seattle generally requires a permit before altering, repairing, removing, or demolishing a structure, and being exempt from a permit never exempts the work from the building code. Confirm your own scope with SDCI before work begins.

Sources

Committee Input No. 9-NFPA 211-2024 [ Chapter 15 ] - First Draft Committee Input Statements, NFPA 211 A2026 cycle — National Fire Protection Association (NFPA). Accessed 2026-08-27.
Standard Operating Procedure - Level 2 Inspection, Masonry Fireplace (Rev. 4/5/19) — Chimney Safety Institute of America (CSIA). Accessed 2026-08-27.
Chapter 3 Building Planning: Seattle Residential Code 2021 — UpCodes (third-party mirror of the adopted Seattle Residential Code). Accessed 2026-08-27.
SDCI Director's Rule 07-2025, Alteration and Repair of Unreinforced Masonry Chimneys — Seattle Department of Construction and Inspections (SDCI). Accessed 2026-08-27.
2021 Seattle Residential Code, Chapter 10 Chimneys and Fireplaces, Section R1003.3 — Seattle Department of Construction and Inspections (SDCI). Accessed 2026-08-27.
Unreinforced Masonry Buildings - What & Why — Seattle Department of Construction and Inspections (SDCI). Accessed 2026-08-27.
Unreinforced Masonry Buildings - Timeline — Seattle Department of Construction and Inspections (SDCI). Accessed 2026-08-27.
Table B25034: Year Structure Built, Seattle city, Washington (American Community Survey 2024 1-year estimates) — U.S. Census Bureau, American Community Survey (retrieved through the Census Reporter data API). Accessed 2026-08-27.
Historic Districts - Historic Preservation — Seattle Department of Neighborhoods. Accessed 2026-08-27.
Preventing Chimney Fires — Chimney Safety Institute of America (CSIA). Accessed 2026-08-27.
After Chimney Fire - Ensure Safe Chimney Use — Chimney Safety Institute of America (CSIA). Accessed 2026-08-27.
2021 Seattle Residential Code, Chapter 1 Scope and Administration — Seattle Department of Construction and Inspections (SDCI). Accessed 2026-08-27.
Standard Operating Procedure - Level 1 Inspection, Masonry Chimney Attached to a Building Heating Appliance (Rev. 4/5/19) — Chimney Safety Institute of America (CSIA). Accessed 2026-08-27.
Seattle Department of Construction & Inspections — City of Seattle. Accessed 2026-08-27.
SDCI Tip 303A, Common Seattle Residential Code Requirements — Seattle Department of Construction and Inspections (SDCI). Accessed 2026-08-27.
2021 Seattle Residential Code, Chapter 10, Chimneys and Fireplaces — Seattle Department of Construction and Inspections (SDCI), City of Seattle. Accessed 2026-08-27.

Next step

Start with an inspection

Tell us what you have noticed. We will look at the chimney, show you what we found, and put a price on the work before anything begins.

Request an inspection Call (206) 573-4487