Chimney Waterproofing in Troy
Most Troy chimneys have never been sealed at all
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4.9 · 247 Troy reviews
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CSIA & NFPA certified
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1-year workmanship warranty
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Same-day PDF report
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40 years sweeping chimneys
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3,412 verified Google reviews
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4.9 average rating
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CSIA-certified crew
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NFPA 211 compliant
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Licensed in 6 states
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100% background-checked technicians
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Free estimates
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40 years sweeping chimneys
●
3,412 verified Google reviews
●
4.9 average rating
●
CSIA-certified crew
●
NFPA 211 compliant
●
Licensed in 6 states
●
100% background-checked technicians
●
Free estimates
●
40 years sweeping chimneys
●
3,412 verified Google reviews
●
4.9 average rating
●
CSIA-certified crew
●
NFPA 211 compliant
●
Licensed in 6 states
●
100% background-checked technicians
●
Free estimates
●
40 years sweeping chimneys
●
3,412 verified Google reviews
●
4.9 average rating
●
CSIA-certified crew
●
NFPA 211 compliant
●
Licensed in 6 states
●
100% background-checked technicians
●
Free estimates
Pricing, before you commit
Want an estimate before booking?
Waterproofing is quoted after the masonry is assessed, because sealing failed joints achieves nothing. Use our free Inspection Cost Calculator to see what that assessment costs, in under 30 seconds. No email, no callback, no surprise fees.
Estimate preview
Live
waterproofing
Quoted after masonry assessment
Inspection (credited)
−$49
Typical job
Two-coat application
Final price quoted in writing before any work.
The craft, done properly
CHIMNEY WATERPROOFING IN TROY, MI
Here is the thing about Troy's housing stock: when these subdivisions went up between 1955 and 1985, chimney waterproofing was not standard practice. Sealers of the kind we use now barely existed. So the overwhelming majority of chimneys in this city have spent five or six decades absorbing water with nothing on them at all — which is precisely why so many of them are spalling at the same time.
Brick takes water in and releases it as vapour. In Oakland County that water freezes while it is inside the brick, expands, and works the face apart from within. A penetrating vapor-permeable sealer stops the liquid at the surface while leaving the exit open for vapour. Brown Chimney applies two coats to full coverage and uses vapor-permeable products only — a film-forming sealer traps the moisture already in the masonry, which in this climate is the exact water doing the damage. One rule comes first: if your joints have deteriorated, tuckpointing comes before any sealer.
Two-coat vapor-permeable sealer on repointed masonry — Troy, MI
The Work
What sealing changes on a fifty-year-old chimney.
Unsealed brick has a shelf life, and in Michigan it is shorter than the house. Each absorb-freeze-expand cycle takes a fraction off the brick face. You cannot see it happening for forty years, and then one spring the faces start flaking and the whole street seems to need work at once. Sealing does not reverse that — it stops the clock where it is.
Which is why timing decides the value. On a chimney that is still sound, two coats of vapor-permeable sealer are among the cheapest preventive spends available. On one that is already spalling through, sealer holds nothing and the money is better put toward rebuilding the failed section. The honest assessment is which side of that line you are on, and it takes a look from the roof rather than a guess from the driveway.
We seal chimneys across Oakland County and in Bloomfield Hills and Farmington Hills. See everything we handle locally on the Troy page. The full method, materials, and standards behind the work are on our chimney waterproofing service page.
When to book
When is chimney waterproofing worth doing in Troy?
Waterproofing protects sound masonry; it cannot repair failed masonry. On a mid-century Troy chimney the question is usually whether you have caught it in time. These are the situations where sealing earns its cost.
If the faces are already spalling through rather than flaking at the surface, sealing will not hold. A $49 inspection tells you which stage you are at, and the fee credits toward whichever work follows.
What to expect
What happens during chimney waterproofing?
Waterproofing in Troy is a single visit on sound, dry masonry, scheduled while temperatures still allow proper curing. Two coats are applied to full coverage — a one-coat shortcut shows up as failure a few winters later.
01
Masonry condition check
Sealer doesn't fix failing joints. If the mortar is deteriorated, tuckpointing comes first — and we'll tell you that before taking money for a coating that can't hold.
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02
Cleaning & drying the masonry
Masonry has to be clean and dry before anything is applied. Debris, efflorescence, and loose material are cleared from every exposed face above the roofline.
03
First coat application
A penetrating vapor-permeable sealer goes on all exposed brick and mortar above the roofline. Never film-forming — a sealed skin traps moisture inside the masonry and destroys brick faster than rain ever would.
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Second coat
A second coat is applied over the first. Two coats is the standard here; a single coat is the shortcut that shows up as failure a few seasons later.
05
Inspection & photo report
Coverage is checked across every face, the finished work photographed for your report, and backed by the 1-year workmanship warranty on all labor performed.
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First my husband and I was struggling to find a good company to help us convert our fireplace into a gas one. We contacted brown chimney and they sent Eddie who was amazing, and professional.
Edward Parry
Troy Homeowner
The Brown Chimney Standard · Troy
Built for Oakland County winters.
Freeze-thaw is the local enemy
Snow sits for weeks in a Troy winter, then thaws. That cycle is what cracks mortar and lifts flashing — and what our repairs are specified against.
Code-ready for Troy inspections
From established Somerset-area homes to newer subdivisions, our repairs pass local inspection.
1-year workmanship warranty
Every piece of structural labor we perform is covered for a full year — in writing, not in promises.
Price fixed before we start
Measured on site, quoted in writing, approved by you — then the work begins. Never the other way around.
For transparency
What this visit doesn't cover.
Tuckpointing, if the joints have deteriorated — that comes first and is quoted separately
Crown sealing, which uses a different product and is priced as its own line
Masonry below the roofline, which sits in a different exposure and is assessed separately
FAQs
Common questions about chimney waterproofing in Troy
Do most Troy chimneys need waterproofing?
Most have never had it. Waterproofing was not standard when Troy's subdivisions were built between 1955 and 1985, so the majority of chimneys here have absorbed water unprotected for five or six decades. Whether sealing still helps depends on how far the brick has gone.
What's the difference between vapor-permeable and film-forming sealers?
A vapor-permeable sealer penetrates the brick and repels water while letting moisture escape outward. A film-forming sealer coats the surface and traps moisture inside — which in a freeze-thaw climate is exactly the water that spalls brick. Brown Chimney uses vapor-permeable products only.
Should I waterproof before or after tuckpointing?
After, always. Sealing deteriorated joints achieves nothing, because water enters through the failed mortar regardless. Repointing comes first, then sealer on fresh sound masonry. Doing both in the same visit is the cheapest sequence, since access is already set up.
Is it too late to seal my chimney?
It depends on the brick, not the age. If faces are sound and only surface flaking has begun, sealing stops the process where it is. If the faces are spalling through, the water is already inside and the money belongs in repair instead. Brown Chimney assesses before quoting.
Is waterproofing worth it on a chimney I never use?
Weather does not care whether you light fires. An unused chimney takes the same snow load, the same thaw cycles, and absorbs water the same way. If the masonry is sound, sealing it is one of the cheapest ways to keep it that way.
Related Services
Often paired with chimney waterproofing.
A safer hearth — for 2026
Sealed properly — or repaired first.
Every Brown Chimney waterproofing job in Troy starts with a masonry assessment, uses vapor-permeable sealer in two coats, and is backed by a 1-year workmanship warranty. Book online or call 248-260-5979.