Chimney Cap Installation
The $375 part that protects the whole system
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4.9 · 3,412 Google reviews
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CSIA & NFPA certified
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Licensed · $2M insured
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1-year workmanship warranty

The $375 part that protects the whole system
★
4.9 · 3,412 Google reviews
✓
CSIA & NFPA certified
✓
Licensed · $2M insured
✓
1-year workmanship warranty
Use our free Cap Installation Cost Calculator to get an estimated price in less than 30 seconds — based on your flue type, chimney size, and roof access. No email, no callback, no surprise fees.
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chimney-cap-installation
$195 – $2,500
Inspection (credited)
−$49
Typical job
$375 – $549
Final price quoted in writing before any work.
A chimney cap is the fitted metal cover at the top of your flue — and it's the cheapest insurance the system has. It keeps rain out of the flue (where water otherwise soaks masonry and rusts the damper), keeps animals from nesting in the off-season, blocks leaves and debris, and its wire mesh works as a spark arrestor in the other direction. An uncapped flue is an open pipe to the sky: every storm, squirrel, and October leaf fall ends up in your chimney.
Brown Chimney installs standard single-flue caps for $375, professionally fitted and sealed, with hard-access jobs up to $549 — always confirmed before we climb. Not every cap needs replacing: if yours is just loose or lightly rusted, we re-secure, re-caulk, and re-seat it for $195. Multi-flue chimneys get custom stainless steel caps built to your exact dimensions, typically $1,500–$2,500+, with sealed anchor points and mesh on every opening. All cap work carries a 1-year workmanship warranty. Check your configuration on the cap installation cost calculator — it takes 30 seconds.
Most of the expensive chimney damage we repair started at an open or failed cap. Water is the number one enemy of masonry — and the flue is a direct channel into the heart of the structure. A correctly sized, sealed cap closes that channel for a few hundred dollars. It's the difference between water shedding off the top and water working through the system for years.
Installation is precise or it's pointless: the cap is measured to your flue tile, anchored and sealed so wind can't lift it, and meshed so animals can't enter and sparks can't exit. Galvanized steel is the standard for single-flue caps; multi-flue and chase covers are stainless only — no exceptions, because they fail faster in anything less. If the crown around the flue shows cracking while we're up there, it goes in your photo report with a separate quote — caps and crown repairs protect the same top surface and often make sense together.
Related reading: why animals keep coming back to your chimney — and what actually stops them for good. Thinking about the DIY route? Here's how a chimney cap is installed, step by step, so you know what a proper job looks like.

Cap failure is easy to spot once you know where to look — most of these are visible from the ground or announce themselves from inside the flue. If any sound familiar, the fix is a single visit.
Already dealing with a nest or an animal in the flue? Removal is quoted on-site first — then the cap goes on so it doesn't happen again. A $49 inspection confirms the cap size and spots anything else the roof visit should cover.
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Water doesn't break chimneys overnight. It takes years — which means catching it early is everything. That's the whole repair business in one sentence.
Ben Brown
A standard cap installation is a single visit, typically under two hours — measured, fitted, sealed, and photographed before we leave the roof.
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The flue tile is measured exactly — cap fit is everything. Multi-flue chimneys are dimensioned for a custom stainless build; single flues match standard sizing.
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While we're up there, the crown and top courses get checked. Anything worth watching goes in your photo report — cap and crown protect the same surface.
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The cap is seated, anchored, and sealed so wind can't lift it. Galvanized steel for standard single flues; stainless only for multi-flue — no exceptions.
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Wire mesh on every opening — tight enough to stop animals and embers, open enough to keep the draft unrestricted.
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The finished installation is photographed from the roof and added to your report, with the 1-year workmanship warranty in writing.
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Animal or nest removal (quoted on-site before the cap goes on)
Crown repair — documented with photos if spotted, quoted separately
Chase cover replacement for prefab chimneys (custom stainless, quoted by dimensions)

Every Brown Chimney cap is measured to your flue, sealed against wind and water, and backed by a 1-year workmanship warranty — with photos of the finished work in your report. Book online or call, and close the top of the system for good.