The flue is the vertical channel that carries smoke and gases up and out, and in most older Seattle chimneys it's lined with clay tiles. Over decades those tiles crack, and once they do, heat and carbon monoxide can escape into the structure. A repair might mean patching or replacing damaged tile sections, or relining the whole flue where the damage runs the full length. Here's what flue repair costs across Seattle, Tacoma, and Puget Sound.
What chimney flue repair costs in Seattle
Cracked flue tile repair — patching or replacing a damaged section — runs about $299–$1,200. A full flue relining, installing a new liner the length of the chimney, runs $1,200–$2,500. Chimney height, the number of damaged tiles, and access set the price. We check the flue's condition and quote in writing, with a price-match plus 10–25%.
Signs your flue is cracked
- Shards or flakes of clay tile landing in the firebox.
- A poorly drafting fireplace or smoke pushing back inside.
- Efflorescence or damp staining on the outside brick.
- Faster-than-normal creosote buildup.
- A carbon monoxide alarm sounding when you burn.
Why flue tiles crack in Puget Sound
Clay tiles expand and contract with every fire, and after decades of Seattle winters they simply fatigue and split. Moisture is the accelerant: water from a failed crown or cap soaks into the flue, then freeze-thaw cracks the tiles apart. In older unreinforced masonry chimneys across King, Pierce, and Snohomish counties, ground settling and seismic movement can also shear tile joints that were otherwise intact.
Section repair or full reline
If only a tile or two are cracked, a targeted repair at $299–$1,200 restores safe venting for far less than relining. But if the damage runs the length of the flue, a full reline at $1,200–$2,500 is the safer, lasting answer. We check the flue's condition first and recommend the lower-cost option that keeps you safe. Free written quote, free second opinion, and a price-match plus 10–25%.
What Chimney Flue Repair Costs in Seattle (2026)
Real 2026 ranges for the Seattle–Tacoma–Everett area, with a free written quote before any work begins.
| Cracked flue tile repair | $299–$1,200 |
| Flue relining | $1,200–$2,500 |
Get a free quote
See our full chimney service pricing, or learn more about Chimney Flue Repair. You get a free written quote before any work begins — call 206-453-2045 or request your free quote online.