Serving San Antonio Metro

When Did You Last Look at the Top of Your Chimney?

Chimney crown repair in San Antonio – the concrete slab on top is your chimney’s first line of defense, and the first thing to crack. We seal it or re-pour it properly, so water runs off instead of pouring in. Free estimates, on-site if needed, backed by a 3-year warranty.

Top Rated by San Antonio Residents
Trusted across the metro - quality that speaks for itself
3-Year Workmanship Warranty
Every job backed in writing - no fine print
Certified & Insured Technicians
Free estimates, on-site if needed - no service call fee
skip the call and book online

Get a Free Quote

No commitment · No service call fee · Same-day available

Contact Form

We never share your information

Chimney Crown Repair · San Antonio

The part of your chimney you've never seen is the part that fails first.

The crown is the concrete slab across the very top of your chimney - its roof. It takes the full force of the Texas sun and every drop of rain, all year, with nothing above it for protection. And because you can't see it from the ground, it's almost always the most neglected part of the whole structure.

When it cracks, water pours straight into the masonry below - which is why a failed crown is one of the leading causes of chimney leaks and rebuilds. Repaired early, it's a straightforward fix. Ignored, the damage travels all the way down.

We Get Eyes on the Top

Hairline cracks, spalling, a missing drip edge - we assess the whole slab, not just what shows from below.

Repair or Re-Pour — Honestly

Minor cracks get sealed; a failed slab gets rebuilt properly. We tell you which one you actually need.

Built to Shed Water. Backed 3 Years.

A proper slope and drip edge so rain runs off - by certified & insured technicians, with a 3-year warranty.

Call (726) 259-1693
Chimney crown repair and concrete re-pour in San Antonio, TX — MockingBird Chimney
Top
Most weather-exposed part of the chimney
#1
Leading crown-related cause of leaks
Same Day
Typical response for an active leak
$0
Crown estimate, on-site free if needed
Out of sight isn't out of trouble. A cracked crown lets water into every course of brick beneath it.
Crown Repair Across San AntonioAlamo HeightsStone OakHelotesLeon ValleyConverseUniversal CityLive OakSchertzCiboloSelmaBoerneFair Oaks RanchBulverdeSpring BranchNew BraunfelsSeguinCastrovilleFloresvillePleasanton Crown Repair Across San AntonioAlamo HeightsStone OakHelotesLeon ValleyConverseUniversal CityLive OakSchertzCiboloSelmaBoerneFair Oaks RanchBulverdeSpring BranchNew BraunfelsSeguinCastrovilleFloresvillePleasanton
Water Only Travels One Way - Down

What a Cracked Crown Reaches Next

The crown is the top. Once it lets water in, gravity does the rest - here's the path the damage follows if the slab isn't sealed.

Level 01

The Crown Cracks

Sun and freeze-thaw split the concrete slab - the first opening, right at the top where all the weather hits

Level 02

Water Hits the Brick

Rain runs through the crack into the top courses of masonry, soaking the joints and softening the mortar

Level 03

The Flue Suffers

Moisture reaches the flue liner and damper - rusting metal and cracking clay tiles from the inside

Level 04

It Reaches the Firebox

Now it's inside - a damp firebox, musty odors, and staining working its way into the living space

Level 05

Your Ceiling & Walls

Stains, drips, and drywall damage - the expensive end of a problem that started with one crack up top

Seal the crown at Level 1 and the whole chain stops. Wait, and you're repairing every level it reached.

Swipe to explore

Look Up — and Look Down

Signs Your Crown Has Failed

You can't see the crown from the ground - but it leaves clues. Some fall to the base of the chimney; others show up on the brick just below it. Spot any, and the estimate is free.

Concrete Chunks in the Gutter

Finding bits of grey concrete or sandy debris in the gutters or at the base of the chimney? That's the crown breaking apart and washing down piece by piece.

Visible Cracks Up Top

From an upstairs window or with binoculars, you can see cracks running across the slab. Even a hairline crack widens fast once water gets in and freezes.

White Staining Below the Crown

Chalky white streaks on the top courses of brick mean water is coming through the crown and passing into the masonry right below it.

Damp Spots Near the Top

Sections of the upper chimney that stay dark and wet long after rain are holding water the crown should have shed. The slab isn't doing its job.

Spalling or Pitting on the Slab

If the crown surface looks flaky, pitted, or crumbly rather than smooth, the concrete is already deteriorating — water has been sitting on it instead of running off.

Never Been Inspected Up There

If no one has looked at the top of your chimney in years, the crown has been weathering unwatched. On older chimneys, age alone is a reason to check.

A crown sealed early is a small, affordable fix. A crown left cracked becomes soaked brick, a rusted flue, and eventually a rebuild.

Get My Free Crown Estimate
Poured to Last

Crowns That Shed the Weather

Cracked and crumbling slabs, rebuilt with a proper slope and drip edge - so rain runs off the top instead of soaking into the brick below.

Chimney crown before and after repair — San Antonio
Before & AfterA cracked slab rebuilt to shed water again
Fresh concrete chimney crown poured — San Antonio
Freshly Poured CrownNew concrete, sloped to run water off the top
Rebuilt chimney crown and cap — San Antonio
ALL IN ONE Slab and cap rebuilt as one sealed system
Finished chimney crown masonry work — San Antonio
Finished & SealedClean masonry, watertight at the top

Every crown is documented before and after - the same paperwork you'd hand your insurance company.

Not Just Cement on Top

How We Repair a Crown Properly

A real crown is engineered to shed water - sloped, overhanging, and cracked-free. Here's how we build one that lasts.

1

Inspect the Slab Up Top

We get eyes on the crown itself - measuring the cracks, checking the slope, and judging whether it can be sealed or needs a full re-pour. Call (726) 259-1693 or send the form to start with a free estimate.

2

Seal or Remove — the Honest Call

Minor cracks get a flexible crown sealant that flexes with temperature swings. A crumbling or badly cracked slab gets removed down to sound masonry - we won't pour good concrete over a failing base just to save a step.

3

Pour It the Way It Should Be

A new crown built to actually work: sloped to shed water, overhanging the brick with a drip edge, and given an expansion gap around the flue so it doesn't crack again. This is the part cheap "repairs" skip.

4

Cure, Seal & Warranty

We let it cure, seal it for extra protection, and document the work - ready for an insurance claim if you're filing one. Backed by our 3-year workmanship warranty, in writing, by certified & insured technicians.

Why Homeowners Trust Us With the Top

A Crown Is Engineered — Not Troweled On

Most cracked crowns were poured wrong the first time. Here's what makes ours last.

Built to Shed, Not Hold

Sloped, overhanging, with a proper drip edge - so water runs off the crown and away from the brick. A flat cap of mortar just funnels rain into the joints.

Repair or Re-Pour, Honestly

We won't upsell a full re-pour when a seal will do - or slap sealant on a slab that needs replacing. You get the call that's right for your crown, not our invoice.

Won't Crack Again

An expansion gap around the flue lets the crown move with Texas temperature swings instead of splitting - the reason poured-wrong crowns fail in a couple of years.

Documented & Warrantied

Before-and-after photos ready for an insurance claim, all work by certified & insured technicians, backed by a 3-year workmanship warranty in writing.

Work That Holds Up

Built Right the First Time

 Real feedback from San Antonio homeowners

"We actually got referred to this company by the previous owners when we bought our house, and they've been our go-to ever since. We do our annual maintenance checks with them every year to keep things safe, and they handle the full cleaning every few years when it's due. It's peace of mind knowing you have a reliable team you can trust year after year."

J
Juan
Ongoing Maintenance

"I can't thank these guys enough. We noticed water staining on our ceiling after a heavy storm and panicked thinking about the repair costs. They came out the exact same day, diagnosed the chimney leak immediately, and had it completely fixed within 24 hours. If we had waited, we'd have been looking at tens of thousands in ceiling and flooring damage. Truly saved our home and our wallets."

E
Erica
Water Damage Repair

"Solid experience from start to finish. Incredibly fast to respond, showed up right on time, and clearly knew exactly what they were doing — very knowledgeable crew. On top of the expertise, their pricing was highly affordable compared to the rates you see everywhere else these days. If you want a quick, smart, and reasonably priced chimney service, just call them."

M
Marcus T.
Chimney Service

"Awesome service! I needed my chimney cap replaced and was bracing myself for a massive bill, but I was so happy with the price they gave me. The tech was super nice, got the new cap installed quickly, and left everything totally clean. Great quality work that didn't break the bank. Will definitely use them again!"

C
Chloe
Cap Replacement

"So glad I found this company! I had a super frustrating leak coming from my chimney, so I spent a couple of days shopping around and getting quotes. I chose them because their pricing was fantastic and they just felt the most honest. They came out, gave a fast fix, and didn't try to upsell me on stuff I didn't need. The whole process was completely stress-free!"

B
Brett
Masonry & Water Fix

"We actually got referred to this company by the previous owners when we bought our house, and they've been our go-to ever since. We do our annual maintenance checks with them every year to keep things safe, and they handle the full cleaning every few years when it's due. It's peace of mind knowing you have a reliable team you can trust year after year."

J
Juan
Ongoing Maintenance

"I can't thank these guys enough. We noticed water staining on our ceiling after a heavy storm and panicked thinking about the repair costs. They came out the exact same day, diagnosed the chimney leak immediately, and had it completely fixed within 24 hours. If we had waited, we'd have been looking at tens of thousands in ceiling and flooring damage. Truly saved our home and our wallets."

E
Erica
Water Damage Repair

"Solid experience from start to finish. Incredibly fast to respond, showed up right on time, and clearly knew exactly what they were doing — very knowledgeable crew. On top of the expertise, their pricing was highly affordable compared to the rates you see everywhere else these days. If you want a quick, smart, and reasonably priced chimney service, just call them."

M
Marcus T.
Chimney Service

"Awesome service! I needed my chimney cap replaced and was bracing myself for a massive bill, but I was so happy with the price they gave me. The tech was super nice, got the new cap installed quickly, and left everything totally clean. Great quality work that didn't break the bank. Will definitely use them again!"

C
Chloe
Cap Replacement

"So glad I found this company! I had a super frustrating leak coming from my chimney, so I spent a couple of days shopping around and getting quotes. I chose them because their pricing was fantastic and they just felt the most honest. They came out, gave a fast fix, and didn't try to upsell me on stuff I didn't need. The whole process was completely stress-free!"

B
Brett
Masonry & Water Fix
It All Starts at the Top

Seal the Top - Protect Everything Below It.

Free crown estimate, on-site if needed · Sloped & sealed to shed water · All work by certified & insured technicians · 3-year workmanship warranty · Serving the greater San Antonio metro

Crown Questions

Chimney Crown FAQ

Straight answers about the part of your chimney you can't see.

It's the concrete slab across the very top of your chimney - the flat surface the flue pipes stick up through. Think of it as the chimney's own roof. It's not the metal cap (that covers the flue opening) and it's not the brick - it's the poured surface that's supposed to slope water off and away from the masonry below.
Depends entirely on the condition - and we'll tell you honestly. Hairline and minor cracks can often be sealed with a flexible crown coating that flexes with temperature. A slab that's crumbling, deeply cracked, or missing chunks needs to come off and be re-poured properly. We won't upsell a re-pour you don't need, and we won't slap sealant on a crown that's past saving.
Usually because it was built wrong to begin with. Many crowns are just mortar troweled flat across the top - no slope, no overhang, and no expansion gap around the flue. With San Antonio's heat and freeze-thaw swings, that concrete expands, contracts, and splits. A properly engineered crown slopes to shed water and has room to move, so it lasts instead of cracking in a couple of years.
Easy to mix up. The crown is the concrete slab covering the whole top of the chimney. The cap is the metal cover over the flue opening that keeps rain, animals, and debris out of the flue itself. They work together, a chimney really needs both - but they're separate parts, and a full leak fix at the top often means addressing each one.
It ranges - sealing minor cracks is a very different job than removing and re-pouring a failed slab, and access and chimney size factor in too. That's why the estimate is free: we get eyes on the actual crown and give you a real number, not a guess. No service call fee, no obligation to proceed.
A crown built correctly - sloped, overhanging, with an expansion gap and sealed - should last many years, and periodic re-sealing extends it further. The crowns that fail in two or three years are almost always the ones that were poured flat and skipped the details. Ours are backed by a 3-year workmanship warranty in writing.
It's one of the most common causes, but not the only one! Flashing, brick, and the cap can all let water in too. If you're seeing active stains or drips, we'll confirm the actual source before repairing anything. Start on our leak repair page or just call, active leaks get priority scheduling.
It's smart. Sealing a repaired crown adds a layer of protection that helps it shed water and resist future cracking, and pairing it with masonry waterproofing on the brick below gives the whole top of the chimney the best defense. We'll walk you through what makes sense for your chimney at the estimate.

Still have a question? Ask us directly - we pick up.

Scroll to Top