Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
Fast, Reliable Chimney Repair Across Houston
Chimney repair in Houston usually means fixing water damage, not fire damage. The city’s humidity and wind-driven rain put constant pressure on flashings, crowns, and mortar joints. A standard flashing repair runs $350 – $650, while crown repair typically costs $450 – $900 depending on the extent of cracking. We serve homeowners from Bellaire to Kingwood and everywhere between. If your chimney is leaking, rusting, or shedding mortar, call Flint Chimney Sweep at (830) 251-4560 and we’ll give you a written price before any work begins.
Why Flint Chimney Sweep Is Houston’s Preferred Chimney Repair Company
Houston homeowners call us because we put the price in writing before a single tool comes off the truck. That means the number you approve is the number on the invoice. No “discoveries” that double the bill after the work starts. Our technicians are background-checked and uniformed, so you know exactly who’s walking through your door. We’ve been part of the Garrison Partners family of chimney service companies since 2002, operating under the same standard every location follows: documented commitments, not verbal promises.
We also know Houston’s housing stock. The brick chimneys in neighborhoods like West University Place and the Heights tend to be older, with lime mortar that breaks down faster in humid air. The newer builds in Cypress and Pearland often have prefab chimneys with different failure points, usually at the flashing and chase cover. Our Chimney Repair team sees both every week, and we stock common Houston-specific parts instead of ordering everything from a warehouse. That means shorter turnaround on repairs in a city where a leaking chimney can’t wait through a wet week.
Every repair we perform carries our 365-Day Done Right Promise in writing. If a covered repair fails within one full year, we return at no charge. No argument, no re-quote, no fine print. That’s the Garrison Standard, and it’s been our operating code since day one.
Chimney Flashing Repair in Houston
Chimney Flashing Repair in Houston is the most common repair we perform, and for good reason. Flashing is the metal barrier where the chimney meets the roofline, and Houston’s hurricane-season wind-driven rain finds every gap in it. When flashing fails, water runs down the chimney chase, into the attic, and along the firebox. The first sign is usually a water stain on the ceiling near the fireplace or a musty smell in the room. A flashing repair in Houston typically runs $350 – $650, depending on whether we’re replacing a section or the full perimeter.
What the Job Involves
We don’t caulk over old flashing and call it fixed. We remove the damaged section, inspect the substrate underneath, install new flashing with the correct overlap, and seal it with a professional-grade sealant. If the old flashing was installed wrong, which we see often in homes built during Houston’s 1990s construction boom, we correct the pitch so water always sheds away from the chimney instead of pooling against it.
When to Repair vs. Replace
If the flashing is pulling away from the brick or shows visible gaps, replacement is usually the right call. Patching works only when the metal itself is sound and the issue is localized sealant failure. We’ll show you photos from the roof before you agree to anything. No guesswork, no pressure.
Chimney Crown Repair in Houston
Chimney Crown Repair in Houston addresses the concrete slab that caps the top of the chimney. This crown takes direct hits from Houston’s heat, humidity, and storm cycles. Hairline cracks open up, water gets in, and freeze-thaw cycles aren’t even the main culprit here; it’s simple thermal expansion. Houston’s summer sun bakes the crown, then a sudden downpour cools it fast. That cycle repeats weekly in the wet season. A crown repair in Houston typically costs $450 – $900, and the earlier it’s caught, the cheaper it is.
Hairline Cracks to Full Resurfacing
Small cracks can often be repaired with a flexible crown sealant that moves with the concrete instead of splitting again. If the crown has spalled, meaning the concrete surface has broken away in chunks, we resurface it with a proper crown mix that sheds water. In Bellaire, a homeowner booked a chimney cleaning after noticing a musty smell in the living room; our technician found the firebox full of crumbling mortar and the chimney crown cracked from last summer’s storms. We repaired the crown and added a stainless cap, then showed the homeowner a photo report confirming the flue liner and smoke chamber were sound. No sweep was needed, and we told them to book a Level 1 inspection next year, no same-day service promise, just a flat price agreed before we arrived.
Why a Cap Goes With It
We almost always recommend a stainless cap when repairing a crown in Houston. The cap keeps rain and the city’s abundant bird population out of the flue, and it extends the life of the crown by reducing water pooling on top. It’s an add-on, not a required upsell. We’ll show you why it makes sense for your specific chimney and let you decide.
Trusted Brands We Service in Houston
We work with professional-grade chimney products from brands like Olympia Chimney, Copperfield, and DuraFlex. When we resleeve a flue in a Houston home, we specify the liner based on the appliance type and fuel, not on what’s on the truck. We keep common DuraFlex liner components and Copperfield caps in our Houston stock, so repair schedules don’t stall waiting on a distributor. If your chimney has a specific manufacturer’s system in place, we’ll work within that system rather than Frankensteining mismatched parts. That’s how we keep our written guarantee honest; the materials have to perform as a unit for a full year in Houston’s humidity, and these brands do.
Common Chimney Repair Problems We See in Houston Homes
- Flashing rust-through from constant humidity. Houston’s average relative humidity runs near 75% most of the year, and galvanized flashing from older homes rusts from the underside first. By the time you see rust streaks on the brick, the flashing is usually too thin to save.
- Spalled firebox brick from water intrusion. When a crown crack lets rainwater into the chimney, the water absorbs into the firebrick. Houston’s heat then expands it and pops the surface off. This looks like flaking brick inside the firebox and means the water path needs to be fixed before repointing the damage.
- Rusted dampers from storm-driven humidity. Houston’s wet season pushes humid air through uncapped chimneys for months at a time. Cast-iron dampers rust open or shut. We replace them with stainless or cast alternatives designed for coastal humidity, not the cheap steel plate versions that fail in two years.
- Crushed or separated flue liners in homes near the Ship Channel. Older clay tile liners in neighborhoods like Galena Park and Pasadena shift with the region’s clay soil movement. The tiles crack or separate, allowing heat and exhaust to reach the masonry. A camera inspection shows exactly where the separation is so we’re not relining the whole chimney when only a section needs it.
Pricing for Chimney Repair in Houston, TX
A chimney repair job in Houston can run anywhere from $350 for a basic flashing patch to $3,000 or more for a full rebuild of the smoke chamber or the crown-to-flue stack. Flashing repair sits in the $350 – $650 range. Crown repair runs $450 – $900. Mortar repointing typically falls between $40 and $80 per square foot of affected area, depending on accessibility and the depth of the joint work. The two biggest factors are how much water has already gotten in and how accessible the damage is. A chimney on a steep roof costs more in labor than one with safe staging. We provide a written estimate at no charge before booking, and that number is the number you’ll pay. Call (830) 251-4560 for a free estimate on any repair in the Houston metro area.
We Also Serve Cities Near Houston
Flint Chimney Sweep serves the full Houston metro from Galena Park and Pasadena to Channelview and South Houston. If your chimney is leaking in one of these nearby cities, the same written pricing and one-year guarantee apply. We cover Houston neighborhoods including Bellaire, Meyerland, the Heights, Kingwood, and Clear Lake, plus everything in between. Call us and we’ll tell you exactly when we can be there, with a price in hand before we arrive.
Serving Houston, TX - Our Local Coverage Area
We’re based in the Houston area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Chimney Repair in Houston
A Houston chimney should get a Level 2 camera inspection any time you buy the house, after a major storm with high wind and rain, or if you notice any change in how your fireplace draws. For most Houston homeowners who use their fireplace seasonally, a Level 2 inspection every 3 to 5 years is enough, unless the chimney has been through a chimney fire or you’re switching fuel types. If you’re not sure whether your last inspection was Level 1 or Level 2, call (830) 251-4560 and we’ll look up what a Level 2 involves in plain terms and help you schedule the right one.
Yes, in most Houston homes a cracked crown can be resurfaced or sealed without touching the brick below. The deciding factors are the depth of the cracks, whether the crown is still structurally sound, and whether water has already damaged the flue or firebox. We’ll inspect it with a camera and show you the photo report so you can see exactly what we’re seeing. Call Flint Chimney Sweep at (830) 251-4560 and we’ll give you a written price for the crown repair before you commit to anything.
Second-degree creosote is a flaky, granular buildup that a standard chimney sweep can remove with rotary brushes. Third-degree creosote is a hardened, glossy glaze that forms when the flue runs hot and the creosote bakes onto the liner; it requires chemical treatment and specialized removal, and it’s a serious fire hazard because it ignites at lower temperatures than most homeowners expect. In Houston, we see third-degree creosote more often in fireplaces used sporadically during humid winters, because the moisture cycle causes the creosote to bake and re-bake unevenly. A camera inspection tells the difference, and the cost to remove third-degree creosote is higher than a standard sweep. Call us at (830) 251-4560 and we’ll explain the exact price for your situation after a camera inspection.
No, we don’t promise same-day repair because the right fix requires inspecting the flashing, the crown, and sometimes the interior flue before we can give you a real price. We coordinate scheduling and dispatch from our Houston office, and we can usually get a technician out within a few days depending on weather and workload. For an active leak, we recommend tarping the affected area temporarily and calling us at (830) 251-4560 to get on the schedule with a written quote before we send anyone out.
If your damper is rusted shut, don’t force it; the cast frame can snap, and that turns a simple replacement into a rebuild of the throat area. Call a professional to assess whether the damper is salvageable or needs replacement. In Houston, rusted dampers are extremely common in uncapped chimneys that sit through humid summers. Flint Chimney Sweep replaces rusted dampers with stainless or cast alternatives built for humid climates, and every one comes with our written one-year guarantee. Reach us at (830) 251-4560 and we’ll walk you through what to do until a technician can inspect it.
Written by Hank Delano, Owner at Flint Chimney Sweep, serving Houston, TX.





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