Rain and Ice Straight Down the Flue
Water entering an open flue rusts the damper, soaks the smoke chamber and freezes inside the masonry over winter, breaking it apart from the inside out.
Licensed & Insured 5-Star Rated Keep Water & Animals Out
Chimney Cap Installation in St. Louis, MO — Small Part. Big Protection.
Stainless caps that keep Missouri rain, ice and animals out. A missing or rusted cap lets rain, animals and debris straight into your flue. We measure, fit and anchor the right cap — with a written price first.
- Measured On the Roof
- Anchored, Not Friction-Fit
- Written Price Before Work
- 10% Hero Discount
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Single & multi-flue caps
Animal & nest removal
Chase cover replacement
Roof photos of finished work
Local Expertise
Chimney Caps Built for St. Louis Weather
An open flue in St. Louis takes on everything the sky sends: spring downpours, winter ice, and a steady stream of squirrels, raccoons and chimney swifts looking for somewhere warm. Every gallon that goes down an uncapped flue soaks the liner, the damper and the brick, and it is a common cause of the rusty damper and musty smell homeowners notice in July.
We install heavy-gauge stainless and powder-coated caps anchored properly to the flue or crown — not friction-fit lids that blow off in the first storm line. Multi-flue chase covers on newer homes in Chesterfield, Ballwin and St. Charles get the same treatment: correct size, correct fastening, correct slope.
Warning Signs
Why St. Louis Chimneys Need a Proper Cap
The top of the chimney is the hardest part of the house to see — and the easiest place for expensive damage to start. These are the signs to act on.
Animals and Nesting Debris
Squirrels, raccoons and birds nest in uncapped St. Louis chimneys every spring. The nest blocks the flue, which is both a draft and a carbon monoxide problem.
Storm-Damaged and Missing Caps
Missouri wind and hail dent, lift and tear off caps and chase covers. We replace them with anchored, heavier-gauge metal and document storm damage with photos.
Cap installations booked this week
An Open Flue Is an Open Door
Describe what you see — or what you hear. We'll measure on the roof, give you a written price, and fit the cap that actually protects your chimney.
Prefer to send details?
Share what you're seeing and we'll contact you to confirm the right next step.
Send My Chimney DetailsFree written estimates · No obligation
What We Install
Caps, Covers and Screens That Stay Put
Single-Flue Cap Installation
Stainless steel and powder-coated caps sized to the exact flue tile, anchored with the correct hardware — not friction-fit — with spark-arresting mesh that keeps embers in and animals out.
Multi-Flue & Crown Covers
One cover that spans every flue and protects the whole crown. The cleanest solution for chimneys with two or three flues, and the best protection for the crown underneath.
Animal & Nest Removal
Humane removal of nests and blockages, a flue check to confirm nothing is lodged deeper, then a screened cap installation so the flue stays clear for good.
Custom & Specialty Caps
Wind-resistant and draft-improving designs, oversized and odd-shaped flues, and caps for prefab chase covers — measured on the roof and ordered to fit, not approximated.
How It Works
From First Call to a Covered Flue
1. Tell Us What You See
Missing cap, rust, animal sounds, water after rain — describe it and we book a roof visit with the right caps on the truck.
2. Measure on the Roof
We measure each flue tile and the crown, check the crown's condition, and confirm the cap style that fits your chimney and your weather.
3. Written Price First
You get the exact cap, material and price in writing before any work begins. If the crown or flashing needs attention too, you see it in the same estimate.
4. Install & Anchor
The cap is anchored to the flue tile or crown with masonry-rated hardware, the mesh is checked, and the old cap and debris leave with us.
5. Photo Confirmation
You get photos of the finished installation from the roof, so you can see exactly what is protecting your chimney without climbing up yourself.
5-Star Rated
What Homeowners Say About Us
5.0 average rating
Serving St. Louis, Missouri and the surrounding area
“Water was coming in around our chimney every time it rained. Captain found the cracked crown and bad flashing, explained everything clearly, and fixed it in one visit. Not a drop since.”
Michael R.
Chimney Leak Repair · San Antonio, TX · 2 weeks ago
“Very professional from start to finish. The inspection was thorough, they showed me photos of everything, and the cleaning was spotless — no mess left behind. Fair price too.”
Sarah K.
Chimney Inspection & Cleaning · Austin, TX · 1 month ago
“Our 90-year-old brick chimney was crumbling. The tuckpointing work is beautiful — it looks brand new but still matches the house perfectly. True craftsmen.”
David & Anna T.
Tuckpointing & Masonry Repair · Houston, TX · 1 month ago
Cap FAQs
Answers Before You Climb a Ladder
Not sure what's on top of your chimney? Most homeowners aren't. Call and we'll take a look from the roof.
(682) 217-3577It depends on the flue size, cap material and whether one flue or the whole crown is covered. A single stainless cap is a very different job from a full multi-flue crown cover. We measure on the roof and give a written price before work begins.
Yes. An open flue lets in rain, snow, animals and debris. Water is the single biggest cause of chimney damage, and a cap is the cheapest protection the chimney has — far less expensive than repairing a water-damaged liner or rusted damper later.
A cap covers the flue opening itself. A chase cover is the metal top on a factory-built (prefab) chimney chase. Many homes need both — we check which type of chimney you have and fit the right parts.
Yes, when it has proper mesh screening and is anchored correctly. The screen blocks squirrels, birds and raccoons while letting smoke and exhaust out. If animals are already inside, we remove the nest and blockage first.
Stainless steel and powder-coated caps typically last decades. Thin galvanized hardware-store caps can rust through in a few years, which is why we do not install them.
Often yes — we stock the common flue sizes on the truck. Unusual sizes, multi-flue covers and custom caps are measured first and installed once the correct part is in hand.
Yes — 10% off for military, veterans, seniors 65+, police, firefighters and EMTs. Mention it when you call (682) 217-3577.
It stops water coming down the flue, which is one of the most common leak paths. If water is entering at the crown, flashing or through porous brick, the cap alone will not fix it — that is why we inspect the whole top of the chimney first.
A correctly sized, anchored stainless cap with mesh keeps birds and squirrels out of the flue. We remove any existing nesting material first — capping over a nest traps a blockage in the chimney.
Chimney Cap Installation by Area
Cover It Before the Next Storm
One visit, one written price, and your chimney is sealed against water, animals and debris.