Chimney repair in Seattle

The crown is the slab poured across the top of the stack, sloped so rain runs off it instead of standing on it, and it takes the weather before anything else does, and it is also the piece most exposed to direct weather. A hairline crack there, left through one more wet season, lets water travel down into the brick and mortar below. From there it works two ways at once: freezing and expanding through winter cold snaps, which spalls brick faces and cracks mortar from the inside, and simply washing mortar out of the joints a little at a time with every heavy rain. By the time a homeowner notices staining on a ceiling near the chimney, the water has usually been getting in for a while.

That order matters because it is also the order failures usually cascade in — a cracked crown causes a flashing problem before it causes a liner problem, and treating the liner while ignoring the crown just means the same water finds a new way in next winter. What we find at each stage determines the scope, and we write that scope down before quoting or starting anything.

Repointing means removing failed mortar to a consistent depth and replacing it with mortar matched to the original in strength and, wherever it is visible, in color — a mismatched repair on a century-old Craftsman stack is its own kind of failure. Flashing replacement addresses the roofline seal directly, using new step flashing and counterflashing rather than a bead of sealant over the old metal, which is a common shortcut that fails again within a season or two. A flue liner gets replaced with stainless steel sized specifically to the connected appliance when the original liner has cracked or corroded.

A smaller number of calls are something else — a visible lean, a gap opening between the chimney and the house at the roofline, or damage following an earthquake. Seattle sits close enough to the Seattle Fault, and within reach of the offshore Cascadia subduction zone, that unreinforced brick chimneys are a documented seismic risk here specifically, not a generic worry. When a chimney shows signs like that, we recommend a Level 3 inspection before quoting any repair, because patching a structural problem cosmetically is worse than not touching it at all.

The line moves the moment work touches a load-bearing support or the building envelope — a full crown rebuild that changes the chimney’s structure, for instance, or work connected to a broader remodel. We tell you plainly, before quoting a job, whether it crosses that line, and we pull the permit ourselves when it does rather than leaving that step to you.

We work every day from 7 a.m. to 9 p.m. across a twenty-mile radius from central Seattle.