The Ranking
Our top 9 deck builders in San Antonio
San Antonio is hard on a deck in ways that have little to do with snow. Summers run long and hot, sun beats on south and west facing boards for months, and heavy spring and fall storms can drop several inches of rain in a day. Freezes are short and rare, so the frost line is shallow, but footings still have to sit on firm ground. Much of the city sits on clay that swells when wet and shrinks in drought, and the north side has thin soil over limestone and caliche, which can mean drilling or pinning footings into rock.
Wood and composite both work here, with tradeoffs. Pressure treated pine is the budget choice and needs regular sealing in the sun. Cedar looks better and resists rot, but it fades to gray without stain. Composite boards from Trex, TimberTech, AZEK, Fortress or Deckorators cost more up front and need little upkeep, though darker colors get hot underfoot in July, so ask to see lighter samples. Subterranean termites are common across Bexar County, which is one more reason to insist on treated framing even under a composite surface.
Permits come from the City of San Antonio Development Services Department. Under the residential code the city follows, a small freestanding deck close to the ground can be exempt, but decks attached to the house, decks more than 30 inches above grade and most larger decks need a permit and inspections. Attached decks hang on a ledger board that should be bolted to the house framing and flashed so water cannot get behind it. Any deck surface more than 30 inches off the ground needs a guard at least 36 inches tall with openings small enough that a 4 inch ball cannot pass through, and stairs need a graspable handrail. Homes in a local historic district such as King William or Monte Vista may also need review by the city's Office of Historic Preservation before work starts.
Call Texas 811 at least two business days before anyone digs footings, so gas, water and fiber lines are marked. If you live in an HOA neighborhood, as many north side homeowners do, submit drawings and materials to the architectural committee first. Several builders on this list say they help with that paperwork.
Texas has no state licence for deck builders or general contractors, so there is no state registry to check. That puts the burden on you: ask for a certificate of liability insurance naming you, a written contract with the decking brand and line, footing depth and framing details, the warranty in writing, and confirmation of who pulls the city permit. Any wiring for lights or a hot tub should be done by an electrician licensed by the Texas Department of Licensing and Regulation, which you can look up online.
