Chimney flashing
Chimney Flashing Repair & Replacement in Greater Seattle
Diagnosing and fixing leaks where the roof meets the chimney, by repairing or replacing the metal flashing at that joint.
How Chimney Flashing Repair & Replacement works
The joint between a chimney and the roof moves and weathers differently from the rest of the roof, so it relies on metal flashing to keep water out. When the flashing fails, rusts, or pulls away, water can get into the attic and walls.
We work on the roof-to-chimney flashing. We do not offer chimney rebuilding, masonry restoration or chimney cleaning; if we see masonry problems, we will tell you so you can contact a masonry or chimney professional.
Chimney flashing, explained
Diagnosing a chimney leak
Water near a chimney can come from the flashing, the masonry, the chimney crown or cap, or the roof nearby. We check the flashing and surrounding roof and tell you what we can and cannot determine from the roof.
How roof-to-chimney flashing works
Flashing is layered with the roofing so water running down the roof is directed around the chimney. The exact details depend on the chimney size, its position on the roof and the roofing material.
Repair versus replacement
Small problems like loose or unsealed sections can sometimes be repaired. If the flashing is rusted, damaged or poorly installed, replacing it is usually the more lasting fix, and during a reroof it is normally replaced.
Inspection limitations
We inspect from the roof and the attic where accessible. We do not assess the inside of the chimney, the flue or the structural condition of the masonry.
What affects chimney flashing cost
Chimney size, roof pitch and access, the roofing material, whether shingles around the chimney need replacing, and any damaged decking.
The honest take
Advantages & things to consider
Advantages
- Leak diagnosis before quoting
- Flashing repaired or replaced to work with the roof
- Can be done with a repair or a full replacement
Things to consider
- Masonry problems can cause leaks too and are outside our scope
- Older shingles around the chimney may not match exactly
Is this right for your home?
Suitable problems
Leaks or stains near the chimney; rusted, loose or missing flashing.
What an inspection can determine
The condition of the flashing and roof around the chimney.
What may change the scope
Damaged decking, or masonry issues that need a specialist.
Not offered
Chimney rebuilding, masonry restoration and chimney cleaning.
What we inspect
Estimates start with an on-site look at your roof. Attic checks depend on safe access.
Flashing on all sides of the chimney
Shingles and underlayment around the chimney
Signs of leaking in the attic where accessible
Visible masonry issues to refer to a specialist
Common questions
Questions about Chimney Flashing Repair & Replacement
Is my chimney leak caused by the flashing?+
Often, but not always. Masonry, the crown or the cap can also let water in. We check the flashing and roof and tell you what we find.
Do you repair chimney masonry?+
No. We work on the roof-to-chimney flashing. For masonry, crown or flue work, contact a chimney or masonry professional.
Should I replace chimney flashing when I replace my roof?+
Usually yes, because the roofing around the chimney is removed and the flashing should work with the new roof.
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Skylight Replacement
Replacing old or leaking skylights and the flashing that ties them into your roof, with an inspection first to find out whether replacement or a flashing repair is the right fix.
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Fascia & Roof Rot Repair
Replacing rotted fascia boards and roof decking caused by roof or gutter water, after finding the moisture source so the damage does not come back.
Learn moreSkylights, Flashing & Roof Details
Skylights, flashing, pipe boots, ventilation and fascia are where many roof leaks start. Find the right service page for each.
Learn moreReady when you are
Tell us what's going on with your roof and we'll set up an inspection and a written estimate.