Sweep & inspection
Caps & crowns
Flue relining
Masonry repair
Gas fireplace serviceLevel 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 Inspection Across Leon Valley
Chimney inspection in Leon Valley means one thing more than anything else: dealing with chimneys built before 1980 that were never designed for today’s appliances or today’s weather. Most homes between Bandera Road and Evers Road have original masonry chimneys with clay-tile flues, and many of those flues were installed without a liner behind them. When we inspect a chimney in Leon Valley, we’re not just looking for soot. We’re checking for spalled clay tiles, cracked crowns, moisture intrusion at the flashing, and the second flue most homeowners forget exists. Ruben Castellano’s crews know these houses because they’ve been working in them for over two decades. If you’re buying a home off Poss Road or you’ve lived in one for thirty years, you need an inspection that shows you the actual condition of the flue, not just a quick glance up the firebox. Call (903) 515-5079 for a written quote before any work begins.
Key Takeaways for Leon Valley Homeowners
- Pre-1980 ranch homes in Leon Valley commonly have unlined or clay-tile flues that need camera inspection, not guesswork.
- A Level 2 Chimney Inspection in Leon Valley typically runs $249-$449 depending on whether we camera-scan one flue or two.
- Many Leon Valley homes have two flues. Skipping the furnace flue is the most common, and most dangerous, inspection mistake we see.
- Nothing gets recommended without camera evidence you can watch with us, on the spot.
- Every inspection comes with a written report, a written price before work starts, and the 365-Day Done Right Promise behind any repair.
Styles & brands we work with





Why Alcott Chimney San Antonio Is Leon Valley’s Preferred Chimney Inspection Company
We’re not the cheapest chimney company in Leon Valley, and we won’t pretend to be. We’re the company that tells you the truth, shows you the footage, and stands behind what we find. Every technician who arrives at a door off Grissom Road or Huebner Road is background-checked, identity-verified, and sent to you by name and photo before the visit. That’s the Threshold Standard, and it’s not an optional upgrade. Ruben Castellano built Alcott on a simple idea: you should know exactly who’s walking into your home before the truck pulls up. In Leon Valley, where many of our customers are parents with young kids or older homeowners who are often home alone, that matters more than a $20 coupon.
We answer every call with a live person, around the clock. If something smells like smoke at 11 p.m. in your Leon Valley living room, you’ll talk to a human being, not a voicemail tree. And when we inspect a chimney, we don’t soft-pedal what we find. We camera-scan the flue, show you the footage on the spot, and give you a written report that says plainly what’s wrong, what can wait, and what needs attention. No scare tactics. No vague “you need a new liner” based on the house’s age. Just evidence. That’s how Chimney Inspection should work, and it’s how we’ve done it since 2002.
Level 2 Chimney Inspection in Leon Valley
Level 2 Chimney Inspection in Leon Valley is the standard we recommend for any home sale, any appliance change, or any chimney that hasn’t been checked in five years or more. It includes everything in a Level 1 inspection plus a full camera scan of the flue interior, the smoke chamber, the damper, the crown, and the exterior masonry. In Leon Valley, where most houses were built between the 1950s and 1970s, a Level 2 is not an upsell. It’s the only way to see what’s actually happening inside a clay-tile flue that’s been absorbing Bexar County humidity for half a century.
A Level 2 Chimney Inspection in Leon Valley typically costs $249 to $449. The range depends on whether we’re inspecting one flue or two, how accessible the roof and crawl spaces are, and whether we’re documenting everything for a real estate transaction. This is the inspection most homeowners insurance underwriters want to see before they’ll sign off on a wood-burning fireplace in a pre-1980 house. If you’re buying or selling off Bandera Road, ask for the Level 2 by name.
Camera Scan of Both Flues
If your Leon Valley home has a fireplace and an older gas furnace, you probably have two flues. We camera-scan both. The second flue is where we find the worst problems because nobody ever looks at it. Carbon monoxide doesn’t care which flue it’s venting through.
Real Estate Inspection Reports
Buying a home in Leon Valley? We document everything in a written report that an insurance agent or title company can actually use. If the chimney fails, you’ll have the footage to prove it. If it passes, you’ll have the report to close.
Chimney Leak in Leon Valley
Chimney Leak in Leon Valley is rarely just a leak. What we typically find is moisture pushing through cracked crown mortar or failed flashing, then working its way into the brick itself. Leon Valley’s humidity makes this worse than in drier parts of Texas, because the brick never fully dries out. Once moisture sits in the masonry, you get efflorescence (that white, chalky staining) and spalling (the face of the brick popping off). Those look like structural cracks. They’re often repairable, but only if you catch them before the water reaches the framing.
If you’re seeing water stains on the ceiling near the fireplace, or white powder on the chimney face, call us. We’ll find the entry point, show you the evidence, and give you a written price for the repair before any work starts. A chimney leak inspection in Leon Valley typically runs $189 to $289, and if we find a repair you need, you’ll see exactly why before you spend a dollar more.
Crown and Flashing Repair
Crown cracks are the most common leak source we fix in Leon Valley. The crown is the concrete cap on top of the chimney. When it cracks, water gets into the flue chase and the brick. We seal or rebuild crowns based on what the condition actually warrants, not on the age of the chimney.
Efflorescence and Spalling Assessment
White chalky stains are not a leak by themselves. They’re a symptom of moisture moving through the brick. We’ll tell you whether you have an active leak, old staining, or a flashing failure. And if a competitor already quoted you thousands for masonry rebuild, get a second opinion from us. We’ll show you our evidence.
Trusted Brands We Service in Leon Valley
We work with professional trade materials, the same brands chimney pros specify, not box-store substitutes. When a Leon Valley home needs a new liner system, we install DuraFlex. When a clay-tile flue is cracked but not collapsed, we often resurface it with HeatShield instead of tearing out the entire chimney. For crowns and masonry sealants, we use Gelco products that hold up to South Texas humidity better than generic sealants. We keep common parts and materials ready for fast turnaround on Leon Valley jobs, and we’ll tell you exactly which brand we’re installing and why. No white-label mystery products, ever.
Common Chimney Inspection Problems We See in Leon Valley Homes
- Second-flue neglect: We regularly find dangerous blockages in the flue serving an older gas furnace because the fireplace flue got cleaned and the furnace flue didn’t. In mid-century ranch layouts common around Leon Valley, that second flue is often hidden and never thought about.
- Spalled clay tiles: Original clay-tile liners from the 1950s and 1960s crack after decades of heating and cooling cycles plus Bexar County humidity. Shards fall into the smoke chamber and create blockage points that a Level 1 inspection would miss.
- Humidity-driven efflorescence: Leon Valley’s moist air keeps chimney brick damp longer than the dry Hill Country would. That leads to white staining and brick face spalling that’s repairable early but expensive once it reaches the framing.
- Unlined furnace stacks: Many pre-1980 ranch homes in Leon Valley vent a 1980s-era gas furnace into a flue that was never lined. That’s a carbon monoxide risk and a house fire risk, and the only way to know is a camera in the flue.
See the difference
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After
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AfterPricing for Chimney Inspection in Leon Valley, TX
A Level 1 chimney inspection in Leon Valley typically runs $149 to $199. A Level 2, which includes the full camera scan of every flue, runs $249 to $449 depending on how many flues your home has and whether it’s for real estate documentation. A chimney leak inspection runs $189 to $289. These are the real numbers for this market, and if another company quotes you significantly less, ask what they’re skipping. Usually it’s the camera. Every inspection includes a written report, and every repair includes a written guarantee. If the repair fails within the coverage period, the second visit is free. Call (903) 515-5079 for an exact quote on your Leon Valley home. Estimates are free.
Why We’re Different: Evidence Before Recommendations
Here’s what we think about, every single day in Leon Valley: the industry’s worst upselling happens to homeowners with older chimneys. A tech shows up, glances at a 1966 ranch house, and announces the flue needs a $6,000 reline because of its age. No camera. No footage. Just a scare and a quote. We reject that completely. Nothing gets recommended by Alcott without camera evidence you can see with your own eyes, on the spot. If a clay-tile flue in a Leon Valley home is cracked in one spot, we’ll tell you whether HeatShield resurfacing solves it or whether a DuraFlex reline is actually warranted. If the second flue is fine, we’ll tell you that too, and you’ll see the clean footage. Many Leon Valley clay-tile flues are still perfectly serviceable. Anyone who says “age means replacement” is selling you something you may not need.
A few weeks ago our techs inspected a 1960s ranch on Poss Road. The original clay-tile flue serving the wood-burning fireplace had spalled so badly that shards were collecting in the smoke chamber. The homeowner had also routed a 1980s gas furnace into the second flue, which was unlined and had third-degree creosote glazing from years of forgotten use. We pulled the camera through both flues and showed them the footage on the spot. No upsell, just a clear Level 2 report and a HeatShield relining quote for the stack we could actually prove needed it. That’s the way it should work.
We Also Serve Cities Near Leon Valley
Our crews serve Leon Valley and the surrounding area, including San Antonio, Schertz, Cibolo, and Boerne. If you’re on the edge of Leon Valley near any of those cities, call us. We’ll let you know if you’re in our local service area and get you scheduled with a named, photo-verified technician before the truck rolls.
Serving Leon Valley, TX - Our Local Coverage Area
We’re based in the Leon Valley 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 Inspection in Leon Valley
You need both inspected at least once, thoroughly, and then as often as the condition of each flue warrants. The fireplace flue and the furnace flue face different conditions. One carries wood smoke and creosote. The other carries combustion gases from a gas furnace. In Leon Valley’s mid-century ranch homes, the furnace flue is often unlined and more dangerous than the fireplace flue. After the first full Level 2 inspection with camera evidence, we’ll tell you how often each flue actually needs attention. It may not be every year. Some do, some don’t. The point is that you won’t know until someone looks at both. Call (903) 515-5079 and we’ll schedule it.
No. Some cracked clay tiles in Leon Valley chimneys are stable and can be resurfaced with HeatShield, which is significantly less expensive than a full DuraFlex reline. Some cracks are cosmetic and don’t affect function at all. The only way to know is camera footage of the full flue interior. Anyone who recommends a reline based on age or a glance from the top is guessing. We won’t recommend anything we can’t show you on the screen. If a heat shield resurfacing is appropriate, that’s what we’ll quote. If the liner is genuinely unsafe, we’ll show you exactly where and why, and you can watch the footage yourself.
A Level 1 inspection is a visual check of the accessible parts of the chimney, the firebox, and the damper. It’s appropriate for a chimney that’s been regularly swept and has no known issues. A Level 2 inspection adds a full camera scan of the flue interior, the smoke chamber, the crown, and the exterior masonry. For any pre-1980 home in Leon Valley, especially one with two flues and an unknown maintenance history, a Level 2 is the only inspection that actually tells you the condition of the system. Real estate transactions, appliance changes, and any chimney that hasn’t been inspected in five years should get a Level 2. A Level 3 inspection involves opening up the structure and is only necessary when a Level 2 finds something that requires it. Call us for an honest recommendation based on your specific house.
Those white chalky stains are efflorescence, and they mean moisture is moving through the brick. In Leon Valley’s high humidity, that moisture cycles in and out of the masonry and leaves mineral deposits behind. Efflorescence alone doesn’t tell you whether you have an active leak, old water damage, or just condensed humidity. You need to check the crown, the flashing, and the flue interior to know. A chimney leak inspection runs $189 to $289, and we’ll show you exactly where water is getting in, or tell you if it’s not an active leak at all. Call (903) 515-5079 to book the inspection.
More often than you’d think, and usually in the flue nobody remembers exists. Third-degree creosote is the hard, glazed, tar-like buildup that’s extremely difficult to remove and highly combustible. We find it most often in the second flue serving an older gas furnace, where a chimney was used for years without cleaning. Infrequent use plus Leon Valley’s humidity creates the exact conditions for creosote to condense and harden. If we find third-degree creosote, you’ll see it on the camera. If the flue with third-degree creosote is unlined, that’s a fire waiting for a spark. We’ll show you the footage and give you a written plan to fix it. No one should find out about third-degree creosote by having a chimney fire first.
Schedule Your Chimney Inspection in Leon Valley
If you own a home in Leon Valley and you haven’t had the chimney inspected in the last five years, or you’re buying one and the seller is waving you through with a handshake, call (903) 515-5079. We’ll send a technician whose name and photo you get before arrival, who shows a photo ID badge at the door, and who will camera-scan every flue before recommending anything. Written price before work begins. Written guarantee on every repair. The 365-Day Done Right Promise on every completed job. That’s how Alcott Chimney San Antonio works, and that’s what Leon Valley homeowners deserve.
Written by Ruben Castellano, Owner at Alcott Chimney San Antonio, serving Leon Valley since 2002.