Hot seasonal deals — limited spots
Claim SpotIf it only leaks when it rains, the flashing is usually the reason.
The joint where your chimney meets the roof is the single most common leak point on a house. Chimney Operations repairs and rebuilds step, counter, apron and cricket flashing across San Antonio — diagnosed properly, layered in real metal, and documented with photos before and after.
Serving San Antonio and surrounding Texas communities.
We confirm the source before quoting any repair.
Real flashing systems instead of tar and caulk patches.
You see the failed detail and the finished work.
Over a decade of chimney work in South Texas.
Water does not need a hole. It only needs a gap where two materials meet. Where brick meets shingles, the metal flashing is the only thing keeping every storm out of your attic — and it is almost always the part that fails first.
The frustrating part: the stain appears on the ceiling months after the water started moving through the framing. By then the repair is no longer just metal.
Recognize even one of these? The next heavy rain will make it worse.
A brown ring on the ceiling or wall beside the chimney is the classic first sign of failed flashing.
If water shows up during storms and stops when it dries, the roof-to-chimney joint is the usual suspect.
Black roof cement smeared around the chimney is a temporary patch — once it cracks, water walks right in.
Flashing that has pulled away from the brick, curled at the edges or rusted through no longer sheds water.
Wet sheathing, dark rafters or insulation that smells musty around the chimney chase point to a flashing leak.
Metal simply laid on the shingles without being cut into the mortar joint will always leak eventually.
Roofers often reuse old flashing. New shingles with old metal is one of the most common leak sources we find.
Wide chimneys need a saddle behind them. Without one, rain and debris pile up and force water under the shingles.
Flashing is one of the cheapest repairs on a chimney — and one of the most expensive to ignore.
Water sitting under the shingles rots the sheathing and rafters long before it appears on the ceiling.
Constant moisture breaks down mortar joints, spalls brick and rusts the damper inside the chimney.
Stained ceilings, peeling paint and soaked insulation turn a small metal repair into interior remodeling.
Warm, damp framing in South Texas grows mold fast — and that remediation costs far more than flashing.
Proper flashing is a system. Miss one layer and the whole joint leaks.
Individual L-shaped pieces woven between each course of shingles along the sides of the chimney. Every piece overlaps the next so water is stepped down the roof instead of under it.
Metal cut into a mortar joint on the chimney and folded down over the step flashing. This is the layer that seals the wall, and it is the piece most often missing on leaking chimneys.
The apron seals the front of the chimney; a cricket is a small peaked saddle built behind wide chimneys so water and leaves divert around instead of pooling against the brick.
Not sure what is around your chimney? Send us a photo from the ground or let us take a look from the roof — we will tell you which layer failed.
A clear four-step path — diagnosis first, repair second.
Symptom
You see a ring on the ceiling, or a damp spot in the attic near the chimney.
Diagnosis
Roof, flashing, crown, cap and masonry checked and photographed — no guessing.
Repair
Step and counter-flashing installed so water is shed by design, not held back by caulk.
Result
A sealed roof-to-chimney joint documented with before and after photos.
Everything at the roofline — repaired once, the correct way.
Re-securing, re-sealing and repairing flashing that has lifted, cracked or pulled loose.
Old metal removed and a new step and counter-flashing system installed the correct way.
New L-flashing woven course by course along both sides of the chimney.
New reglet cut into the mortar joint, metal locked in and sealed with quality sealant.
A framed saddle behind wide chimneys so rain and debris are diverted away from the brick.
New front apron where the chimney meets the downhill side of the roof.
Cracked roof cement stripped off and replaced with a real, layered metal detail.
Repointing deteriorated joints so the counter-flashing has solid masonry to lock into.
Controlled water testing on the roof to confirm the true entry point before any repair.
Real chimney caps, chase covers, flashing and masonry work completed by Chimney Operations across San Antonio, Texas and surrounding areas.
CompletedNew galvanized chase cover with black cap installed in San Antonio, Texas.
CompletedChase resurfaced and sealed with new galvanized cover and step flashing.
CompletedRepointing between the bricks, installation of new flashing and crown repointing on a San Antonio, Texas chimney.
CompletedDeteriorated brick and mortar cut out and rebuilt with new flashing on a shingle roof.
CompletedFresh siding, new chase cover and sealed flashing on a Texas roof.
CompletedThree round flue caps and crown repair on a large masonry chimney.
CompletedTwin stainless caps and new counter-flashing on a metal roof home.
CompletedBlack square cap installed on a classic red brick chimney.
CompletedOld rusted cover removed and replaced with a custom-built cover.
CompletedCustom galvanized cover with mesh cap on a wood chase.
CompletedChase repaired and topped with a properly sloped cover.
Describe the stain or leak and we schedule a look.
We trace the water back to where it actually enters.
Exactly which flashing detail is failing and what it takes.
New metal installed, tested and documented with photos.
A locally owned chimney company that repairs the leak instead of covering it.
Water testing and inspection before a single dollar of repair.
Roof cement is a stopgap — we install flashing that works without it.
We repoint the joint and set the counter-flashing in the same visit.
Chimneys are our trade, not a sideline to roofing.
Old metal and debris hauled off, nothing left on the roof.
A clear scope before we start, with no surprise add-ons.
Water at the roofline usually leaves traces elsewhere in the system.
When water is coming through the crown, masonry or cap — not only the flashing.
Learn moreSealing the top of the chimney so rain stops entering from above.
Learn moreMortar joints, crowns and brickwork damaged by long-term water exposure.
Learn moreChimney Operations repairs chimney flashing throughout San Antonio and the communities around it — Boerne, Helotes, Shavano Park, Alamo Heights, Stone Oak, Bulverde, New Braunfels, Schertz and nearby areas within roughly a 60-mile radius.
South Texas storms arrive fast and hard, and long dry spells bake sealant until it cracks. That cycle is exactly why caulked flashing fails here so quickly. Not sure if your neighborhood is covered? Call 210-401-3967 and we will let you know.
See all service areas
It depends on whether the existing metal can be repaired or the full step and counter-flashing system needs replacing, and whether the mortar joints need repointing first. Call 210-401-3967 and we will inspect it and explain the options before scheduling.
Flashing is the layered metal that seals the joint where the chimney passes through the roof. It normally includes step flashing woven into the shingles, counter-flashing cut into the mortar joint, and an apron across the front.
Both are common. Water can enter through failed flashing, a cracked crown, an open flue, or porous brick and mortar. We inspect all of them — and water test when needed — so the repair matches the actual entry point.
Tar is a temporary fix. It hardens, cracks in Texas heat and traps water against the masonry. A properly layered metal flashing system sheds water without relying on sealant to hold back the rain.
Chimneys wider than about 30 inches on the up-slope side generally need a cricket, a small saddle that diverts water and leaves around the chimney instead of letting them pile against the back wall.
Reused flashing is one of the most common causes. New shingles installed over old, fatigued metal — or metal simply surface-caulked to the brick — will keep leaking until the flashing detail is rebuilt.
Most flashing repairs and replacements are completed in a single visit. Adding a cricket or repointing masonry first can extend the work.
No. We lift and re-weave shingles carefully around the chimney and reseal everything we open. If shingles are brittle or already damaged, we tell you before starting.
We document the repair with photos and can water test the area afterward so you can see the joint holding before we leave.
Yes. We repair chimney flashing throughout San Antonio and surrounding communities including Boerne, Helotes, Shavano Park, Alamo Heights, Stone Oak, Bulverde, New Braunfels and Schertz — roughly a 60-mile radius.
Call 210-401-3967, email Chimneyoperation@gmail.com, or send the service request form on this page and we will follow up to confirm a time.
Fill in your details and we will get straight back to you to confirm a time for your chimney service in San Antonio, Texas.
Get your chimney flashing inspected, diagnosed and repaired by a local chimney company — real layered metal, documented with photos, no tar patches.
