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 San Marcos
Chimney repair in San Marcos typically runs $350 – $1,800 depending on what’s actually wrong, and most jobs we quote are done in a single visit. If you’re seeing grit on the hearth, water stains on the ceiling near the flue, or brick that’s flaking off onto the roof, you’re in the right place. We’re Flint Chimney Sweep, and we’ve been running disciplined, documented chimney work since 2002 as part of the Garrison Partners family.
Call (830) 251-4560 and you’ll get a live person, not a voicemail tree. We’ll give you a written price before any work starts, and we’ll stand behind the repair with a 365-Day Done Right Promise.
Why Flint Chimney Sweep Is San Marcos’s Preferred Chimney Repair Company
San Marcos homeowners have a specific frustration with chimney companies: the no-show, the price that changes at the door, the crew that leaves a mess. We built our process to eliminate exactly that. Every repair job starts with a written price. Not a verbal estimate, not a ballpark, not a “we’ll see once we open it up.” The number you approve is the number on the invoice.
Our technicians are background-checked and uniformed, so when we pull up to a house off Ranch Road 12 or a 1960s brick ranch in the Hill Country, you know who’s walking through your door. And every repair carries a written guarantee valid for one full year. If a covered repair fails in that window, we return at no charge. No argument, no re-bill. That’s the Garrison Standard, and it’s how we work in San Marcos and every city we serve.
Chimney Repair Companies in San Marcos
Chimney Repair Companies in San Marcos do a lot of the same work on paper: repointing, flashing, caps, liners. What separates them is what gets put in writing. At Flint Chimney Sweep, that means a flat price before booking, a camera inspection with a photo report, and a one-year written guarantee on every repair. A standard chimney sweep in San Marcos runs $225 – $325. Repointing runs $400 – $1,200 depending on how much mortar joint needs cutting and replacing. Flashing repair lands between $350 and $900. A full flue relining with a HeatShield or DuraFlex liner runs $1,800 – $3,200.
What a repair call actually looks like
We start with the chimney’s condition, not a script. We’ll inspect the crown, the flashing, the flue, and the firebox. Then we put the price in writing. If the camera shows a cracked flue liner, you see the photo yourself before you spend a dollar on it.
When San Marcos homeowners call us
Most calls come after a storm rolls through and water spots appear on the ceiling. Others come after a home inspection flags the fireplace. A good number come from homeowners who just want a straight answer on whether that crack in the brick is cosmetic or structural. We give the straight answer, with photos to back it.
Chimney Masonry Repair in San Marcos
Chimney Masonry Repair in San Marcos is a different animal from a simple sweep because it deals with the structural shell: brick, mortar, crown, and the firebox. San Marcos sits on the Balcones Fault Zone, and much of the city is built over Edwards Limestone and expansive clay. That clay expands and contracts with moisture, and the movement telegraphs up through masonry chimneys as cracking. A lot of “chimney leaks” here are actually structural movement, not failed flashing or a worn cap. That’s why we push camera inspections on any San Marcos chimney showing stress cracks.
Mortar repointing and tuckpointing
Repointing means cutting out old, deteriorated mortar joints and packing in fresh mortar. Tuckpointing is the same job with an eye to color matching, so the repair doesn’t look like a scar. In San Marcos, repointing typically runs $400 – $1,200 and addresses the freeze-thaw damage Central Texas winters put on older brick chimneys.
Spalling brick and crown repair
Spalling brick means the face of the brick is flaking off, usually because the brick soaked water and froze. A bad crown pours water straight into the smoke chamber. We rebuild crowns with proper overhang and a drip edge, and we use Gelco products for waterproofing where the structure calls for it. Crown rebuilds in San Marcos generally run $850 – $1,600, and that includes the photo report showing the before and after.
Trusted Brands We Service in San Marcos
We stock parts for the brands San Marcos homes already have, so we’re not waiting on a shipment from somewhere else. That means faster turnaround for homes around Kyle, New Braunfels, Buda, and Canyon Lake, too. We install and service Famco caps and dampers, Copperfield flashing and chase covers, and DuraFlex and HeatShield liners. When we specify a material, it’s because the job calls for it, not because the margin is better. If you want to research the product before signing anything, the brand name is on the quote, right next to the price.
Common Chimney Repair Problems We See in San Marcos Homes
- Clay-soil foundation movement cracking the flue liner and firebox mortar. This is the big one in San Marcos, and it often gets misdiagnosed as a simple leak. A cracked liner isn’t a leak problem, it’s a combustion safety problem. The camera inspection tells us which one you have.
- Third-degree creosote glazing in fireplaces that burn only occasionally. A fireplace that gets used twice a year doesn’t stay clean. The smoke cools fast, the creosote sets up like tar, and a brush won’t touch it. This requires chemical treatment or mechanical removal, and it’s exactly the kind of thing a sweep should catch before you light a fire.
- Spalling brick and mortar on the chimney crown from Central Texas freeze-thaw cycles and summer UV. A crack in the crown lets water into the smoke chamber, and that water works its way down. What starts as a $50 mortar patch becomes a $1,200 crown rebuild if it’s ignored long enough.
- Flashing leaks where the chimney meets the roof. San Marcos roofs see real weather. Old flashing fails at the corners first, and the water follows the flue down into the house. Copperfield flashing, properly installed, solves this for decades.
Pricing for Chimney Repair in San Marcos, TX
Here are the numbers we quote over the phone, before we ever schedule a visit. A standard chimney sweep in San Marcos runs $225 – $325. Firebox repointing runs $600 – $1,400. Flashing repair and replacement: $350 – $900. Crown repair or rebuild: $850 – $1,600. Full flue relining with HeatShield or DuraFlex: $1,800 – $3,200. The thing that moves the price on a repair is what the camera shows, which is why every job starts there. You’ll know the exact cost before any work is approved, and that number will not change. Call (830) 251-4560 for a free estimate on your specific chimney.
We Also Serve Cities Near San Marcos
Our Chimney Repair team runs regular routes through Kyle, New Braunfels, Buda, and Canyon Lake, so if you’re just outside the San Marcos city limits, you’re still in our service area. Dispatch coordinates from our Austin office, but the crews work locally in San Marcos full time.
Serving San Marcos, TX - Our Local Coverage Area
We’re based in the San Marcos 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 San Marcos
Once a year, if you use the fireplace at all. The National Fire Protection Association recommends an annual inspection, and in San Marcos that’s not boilerplate advice. The expansive clay and limestone movement here means a chimney that was fine last winter might show new cracking this winter. An annual Level 1 inspection catches it early, before a $200 repoint becomes a $2,000 reline. Call (830) 251-4560 to book an inspection, and ask for the camera run, it’s worth it.
You need to find out where it’s coming from. Grit on the hearth is usually a crumbling firebox mortar joint or a spalling flue liner. Either one can be a fire risk if it’s letting heat reach the framing. We can run the camera and tell you in one visit whether it’s cosmetic or structural. If it can wait, we’ll tell you it can wait. If it can’t, you’ll have photos that prove it.
Yes. We’ll ask a few questions about the chimney’s age, condition, and what you’re seeing, and we’ll give you a written price for the repair before we book the visit. That price covers the work we’ve agreed on. If the camera turns up something else, we stop, show you the photo, and put the new scope and price in writing before anything else happens. The number you approve is the number you pay, every time.
It shows you the inside of your flue, from the firebox to the crown, in real photos. You’ll see cracks, gaps, creosote buildup, and any liner damage. You’ll see the condition of the smoke chamber. Then we sit down with the images and explain what needs repair now, what can wait, and what’s cosmetic. You make the call with documentation, not a salesman’s word. A Level 2 camera inspection in San Marcos runs $250 – $450, and if you proceed with a repair, we typically roll that cost into the job.
Sometimes. A cracked crown or spalling brick can usually wait a season if you’re not using the fireplace and the weather isn’t pushing water in. A cracked flue liner cannot wait, because the risk is carbon monoxide inside the house or a chimney fire when you do light it. We’ll give you the straight answer with the photos to back it. Many San Marcos homeowners get the inspection in spring, then book the repair for fall when we’re scheduling for burning season. We’d rather you know now than find out in December. Call (830) 251-4560 and we’ll tell you the truth either way.
Written by Hank Delano, Owner at Flint Chimney Sweep. Hank has run chimney and masonry work throughout the San Marcos area since Flint Chimney Sweep joined the Garrison Partners family in 2002, and he stands behind every repair with the 365-Day Done Right Promise.





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