Austin

Austin is two cities geologically. East of I-35 the soil is Houston Black expansive clay — one of the most reactive clay profiles in the country. West of I-35 you're in the Hill Country, where Edwards Limestone sits within a few feet of the surface and karst features make drilling unpredictable. The right concrete spec for a house in Pflugerville is a different conversation than the right spec for a house in Westlake.

On the east side, post-tension slabs are standard for new construction and we recommend them for driveway-and-foundation combo projects on lots over 1,500 sq ft. Conventional slabs with double-mat #4 reinforcement work for smaller pours if drainage is properly graded. On the west side, the challenge isn't movement — it's getting through rock to set piers or trenches. We use hammer-drilled piers, mini-excavators with rock teeth, and saw-cut footings when the situation calls for it.

Austin's growing season is brutal on outdoor concrete. We see 95°F+ days from May through October and 100°F+ stretches that last weeks. Surface temperatures on south-facing pool decks and patios hit 140°F in midsummer — without UV-stable sealers and properly chosen integral colors, finishes fade within three years. We default to acrylic-modified sealers and lighter color palettes for pool decks unless the homeowner specifies otherwise.

Drought + intense afternoon thunderstorms means drainage detailing is doing more work in Austin than in most cities. A patio that drains beautifully in October fails in May when a 2-inch downpour hits a saturated lot. We design every pour with a minimum 1/4-inch-per-foot slope, gutter integration where the design allows, and French drains under driveways that are downhill from the house pad. Drainage failure is the single most common reason an Austin patio cracks within five years.

Austin's permit process is real. The City of Austin requires permits for most driveway approaches, all new patios over 200 sq ft, retaining walls over 4 feet, and any work that triggers impervious-cover review. Lots in the Edwards Aquifer Recharge Zone (most of West Austin) face additional water-quality and stormwater review. We handle the submission, drainage calculations, and inspector coordination for every project we touch.

The city's drought-tolerant landscape requirements affect how pool decks and patios get designed. Impervious-cover limits cap how much concrete a lot can support, and we work with landscape architects and pool designers to balance concrete-vs-decomposed-granite-vs-paver coverage. Suburbs like Cedar Park, Round Rock, Pflugerville, Leander, and Georgetown have their own permit requirements that vary in turnaround and strictness — we know the playbook for each.