Quoted after a roof-level leak diagnosis. Confirmed before work starts, and the number does not move.
Chimney Waterproofing & Flashing Repair in Estacada and the Portland Metro
Where chimney leaks really start, how step flashing fails, and why breathable sealant matters in Oregon rain.
Water is the thing that kills chimneys in Oregon. We diagnose leaks at the source, repair step flashing, and seal masonry with a breathable sealant built for Oregon rain, so the brick sheds water without trapping moisture inside. Leak work is custom-quoted after a roof-level diagnosis.
Leaks start at the top
Water near the fireplace almost never comes through the side of the chimney. It enters at the top: a cracked crown, a missing or failed cap, or flashing that has separated where the chimney meets the roof. By the time you see a stain at the hearth, the water has already traveled.
That is why leak diagnosis happens on the roof, not from the living room floor. We find the entry point, photograph it, and walk you through what it takes to fix before any work is quoted.
Flashing, done in layers
Step flashing seals the joint where brick meets roofline, laced in with the shingles so water runs past the chimney instead of behind it. Counterflashing wraps over the top of it, tucked into the mortar joints. When either layer separates, rusts, or was never right to begin with, the joint leaks.
Repairs range from resealing a lifted edge to rebuilding the flashing as part of larger masonry work. Either way, it is quoted after a diagnosis and confirmed before work starts.
Sealant that lets brick breathe
Once the leaks are stopped, the masonry itself needs protection. We use a breathable masonry sealant built for Oregon rain. Liquid water beads off; water vapor inside the brick can still escape. That difference matters here, because a chimney that holds moisture through a wet winter breaks down faster than one that can dry.
Waterproofing pairs naturally with tuckpointing. Repoint the failed joints first, then seal. Sealing over crumbling mortar just locks the problem in.
Pricing and booking
Waterproofing and flashing work is custom-quoted. A reseal is a different scope than a flashing rebuild, and both are different from a crown repair. You get a firm number after the diagnosis, confirmed before work starts, and it does not change once the job is underway.
Call or text (503) 898-8856, or book online in two steps. If you can, snap a photo of the stain and the top of the chimney before you call. It makes the first conversation shorter.
"The owner Jesse is a gentleman, and an expert. I was facing huge devaluation of my home from a leaking, hazardous chimney. If you ever buy a home that has a chimney, call First Rate Chimney before you sign the papers."
Rebecca Brock
Chimney Removal"Very kind, friendly, and knowledgeable about all things woodstove and fireplace related. Ours was a tough job due to the height and angles of our ceiling and roof — never a complaint. They cleaned everything up before leaving."
Sheri B
Wood Stove InstallCommon questions
FAQ
How do you find where my chimney is leaking?
On the roof, not by guessing from the living room. Water near the fireplace almost always enters at the top, through a cracked crown, a missing cap, or separated flashing. We diagnose at the source, show you what we find, and quote the repair before any work begins.
What is step flashing?
Step flashing is the layered metal that seals the joint where your chimney meets the roof, laced in with the shingles so water runs past the brick instead of behind it. When it separates or rusts through, leaks follow. We repair and replace it as part of leak work.
Will sealing the brick trap moisture inside?
Not with the right product. We use a breathable masonry sealant built for Oregon rain, which means liquid water stays out while vapor inside the brick can still escape. That distinction matters here, because a chimney that cannot dry out through a wet winter deteriorates faster than one left bare.
What does waterproofing cost?
Waterproofing and flashing work is custom-quoted, because a reseal is a different scope than a flashing rebuild or a crown repair. After a roof-level diagnosis you get a firm number, confirmed before work starts, with no surprise add-ons tacked on later.
Still have a question? Email Services@FirstRateChimney.com
Flat rate quoted first. No surprises, ever.
Licensed and Insured · Bonded · CCB 244885