Chimney Flue Installation in Alamo Heights, TX

Clay tile is typical for new masonry chimneys and is low-cost but cracks under a flue fire or thermal shock. Stainless steel is the usual choice for relining or venting a modern appliance and matches the liner to the fuel. Cast-in-place rebuilds and reinforces a deteriorated masonry flue in one pour. Your appliance, fuel, and the chimney's condition decide it, which takes an on-site look.

An unlined or cracked flue lets flue-gas heat reach framing and can leak carbon monoxide into living space, which is why NFPA 211 requires a liner in good condition. Sizing matters as much as material: an oversized flue won't develop draft and an undersized one chokes the appliance, so both cause spillage and poor combustion.

Flue height and diameter, the material and stainless grade, chimney access, and whether old liner or damaged masonry has to be removed first. Cast-in-place and tile relines run higher than a drop-in steel liner because of labor and, for cast-in-place, the equipment to pump and form the new flue.

Most are one to two days. Steel and tile systems are usable once the install passes inspection. Cast-in-place needs curing time before any fire, often a day or more depending on the product and temperature, so plan for the wait if that's the system you choose.

It has to match. The liner diameter is sized to the appliance's outlet and BTU rating, and the material has to suit the fuel; for example, an 80% gas furnace, a high-efficiency condensing unit, and a wood stove each need different liners. Putting a wood stove on an oversized masonry flue is a common cause of creosote buildup and weak draft.

Yes — our crews cover Alamo Heights's 1 ZIP code across Bexar County, including Olmos Park line, Terrell Hills, Lower Alamo Heights, plus the surrounding communities.

We offer same-week scheduling across Alamo Heights, booked by a real person in under two minutes, 7 AM to midnight every day.

Alamo Heights is San Antonio's historic affluent enclave — 1920s-40s Spanish-revival and brick mansions near Olmos Park. The work here is period-correct masonry repointing, clay-liner relining, and crown rebuilds on chimneys approaching a century old. Chimney Flue Installation is part of keeping that local housing stock safe, efficient, and up to code.