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Unilock Construction in San Antonio, TX | Mason Remodeling Co San Antonio
We provide independent Unilock paver and wall construction service across San Antonio, and the one thing that separates our work from every other crew is this: we map post-tension cables with ground-penetrating radar before any paver goes down within 30 inches of a slab. San Antonio’s clay soils and brutal summers create failure patterns you won’t find in Dallas or Houston, and we’ve spent years learning exactly where Unilock engineering meets that reality. Call (254) 269-5071 for a free estimate on paver patios, driveways, and wall systems. We’re not factory-affiliated, which means our repair-versus-replace advice comes from field results, not a warranty playbook.
Why San Antonio Residents Choose Us for Unilock Service
Isaac Pruett grew up in Los Angeles and learned construction fundamentals at Los Angeles Trade-Technical College before spending two decades on job sites across the Southwest. He and our crew have been working San Antonio jobs for years, from General Contractor in San Antonio projects like gut renovations near the King William Historic District to paver driveways in quiet north-side neighborhoods. What that experience teaches you is simple: San Antonio’s expansive clay doesn’t care how good a paver looks on a brochure. It cares whether the base was compacted correctly, whether the GPR scan caught every post-tension anchor, and whether the installer understood drainage before a single stone was set. We stock genuine Unilock replacement units for common lines and keep approved-equivalent geotextile and aggregate on hand for structural repairs, so we’re not waiting on a truck from up north when your driveway needs attention.
Styles & brands we work with







Common Unilock Construction Problems We Solve in San Antonio
Every one of these failures is something we’ve pulled up with our own hands, and most of them trace back to San Antonio’s specific soil and climate:
- Clay heaving pulling paver joints apart. San Antonio’s expansive clay shrinks and swells dramatically with flash-drought cycles. When moisture returns after a dry spell, the soil pushes upward unevenly, leaving driveway edges jagged and trip-prone. This is worst on post-2000 slab-on-grade lots where the base layer was compacted quickly.
- Perimeter low spots pooling against foundation lines. During flash droughts, soil contracts and pavers settle along slab edges. Runoff then pools against the foundation, saturating the base and accelerating further settling. We see this constantly on north-side driveways that abut post-tension slabs.
- Thermal expansion buckling on wide paver runs. San Antonio’s 100°F-plus surface heat causes Unilock pavers to expand. Without proper expansion gaps, wider driveway and patio runs buckle in July and August. It’s a materials problem and a planning problem at the same time.
- Drought-stressed root intrusion shoving walls out of bond. Live oaks and pecans stressed by dry summers send roots searching for moisture under U-Cara and Estate Wall sections. Within a decade, those roots can push wall blocks out of alignment by inches.
- UV color fade on unsealed paver surfaces. San Antonio’s intense ultraviolet exposure degrades paver color faster than almost anywhere else in Texas. Driveways that faced west in Alamo Heights look ten years older than identical pavers installed east-facing the same year.
Unilock Service in San Antonio: What Local Conditions Mean for Your Equipment
Here’s the truth most paver installers in San Antonio won’t volunteer: in neighborhoods with post-tension slab foundations, any paver work within 30 inches of the foundation requires mapping cable locations with a GPR scan before you dig, cut, or compact. This is why our Bathroom Remodeling in San Antonio team applies the same soil-mapping rigor to every project, whether it’s a foundation-adjacent patio or an interior renovation. Unilock driveways in this city routinely abut slabs with active post-tension anchors, and drilling into one can strand the cable or snap it outright, which turns a $7,000 paver job into a $25,000 foundation repair. We scan every time, even on jobs where the homeowner swears the previous contractor already checked. Late August is when this matters most. In Alamo Heights and Terrell Hills, a 1950s pier-and-beam house can drop an inch during a dry summer, and that movement changes where runoff pools and where pavers settle. Knowing the soil’s habits before you lay stone is the difference between a patio that lasts twenty years and one that needs releveling in three.
Unilock Models & Products We Service in San Antonio
We service the Unilock lines you’re most likely to have on a San Antonio property: U-Cara Multi-Face Wall System for retaining walls and seat walls, Estate Wall for larger structural runs, Artline Pavers for driveways and walkways, and Eco-Promenade Pavers for permeable applications. We spec genuine Unilock replacement units whenever visible color match matters, because batch toning shifts over years of UV exposure and a mismatched paver draws the eye immediately. For hidden structural pieces, we use approved-equivalent geotextile and aggregate meeting or exceeding Unilock’s bedding specs. We keep common replacement units locally available, so a partial repair doesn’t mean six weeks waiting on a distributor.
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AfterUnilock Service Pricing in San Antonio

Here are the numbers, written plainly, because you should know what to expect before you call:
| Service | San Antonio Price Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Driveway Replacement | $5,000 – $14,000 |
| Unilock paver relaying (per sq ft, includes base repair) | $12 – $25 |
The cost drivers are base depth, paver line, square footage, and whether GPR mapping turns up post-tension anchors that change the compaction plan. Our free estimate includes a written line-item price and a walkthrough of what we found, so you know the number before any tool is unpacked. Call (254) 269-5071 to schedule yours.
Serving San Antonio, TX - Our Local Coverage Area
We’re based in the San Antonio 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 – Unilock Construction in San Antonio
Because San Antonio’s clay expands unevenly when moisture returns after a dry spell, and the real issue is often what’s under the base, not the base itself. If the subgrade wasn’t stabilized for expansive clay, water gets into the soil profile and pushes upward at different rates across the same driveway. Fixed properly, the fix involves removing pavers, recompacting with a crushed-limestone base, and installing geotextile that separates the clay from the base material. Call (254) 269-5071 to have one of our crew look at your specific heave pattern. Estimates are free.
In most partial repairs, we can reuse 80% or more of your existing Artline pavers if the units aren’t cracked and the color hasn’t shifted badly. The exception is aged installations where UV fading has changed the batch tone enough that new pavers would stand out; then we’ll recommend full relaying with color-matched units. A site visit tells us which path makes sense, and the written quote covers both scenarios before you choose.
It depends on whether the lean is from root pressure or frost-heaving from the clay beneath. A wall that shifted because of roots can often be disassembled, re-leveled, and rebuilt with the same blocks if the blocks aren’t fractured. If the footing itself cracked from soil movement, you’re likely looking at a full teardown and rebuild with a corrected base. We’ll tell you which one you have and why. Call (254) 269-5071 for a free estimate and a straight answer.
Concrete is rigid, so when the clay under it shrinks, the slab cracks or tilts and that’s a permanent structural problem. Unilock pavers are segmental, so they flex as the soil moves, but they can settle unevenly, which is repairable by pulling, re-grading, and relaying the same units. In San Antonio’s clay, concrete fails definitively, while pavers fail recoverably, which is why we often recommend paver driveways to homeowners who’ve already replaced one slab. We can quote both options side by side. Call (254) 269-5071.
Yes. San Antonio’s UV intensity means unsealed pavers fade noticeably within five to seven years, especially on west-facing patios. A penetrating or film-forming sealer with UV inhibitors slows that dramatically, but the sealer has to be applied on a clean, dry surface and re-applied on a schedule. We can advise on the right sealer for your paver line and application. Call (254) 269-5071 to talk through your patio’s specific exposure.
Service Areas Near San Antonio
Our crews work throughout San Antonio and the surrounding communities, including Unilock service in Boerne, where the Hill Country clay behaves a bit differently, and Unilock service in Selma, where newer slab-on-grade construction poses its own paver challenges. We also serve Terrell Hills, Cibolo, and Leon Valley, bringing the same GPR mapping and written pricing to every job. If you’re outside the city proper, call and ask about your San Antonio service area.
Book Your Unilock Service in San Antonio Today
Know who’s coming, know what it costs, know it’s covered, that’s the whole job before the job starts. Call (254) 269-5071 to schedule your free Unilock estimate, and we’ll send the crew member’s name and photo before anyone steps onto your property. For more on our Unilock work, see Unilock sales & service.
Written by Isaac Pruett, Owner at Mason Remodeling Co San Antonio, serving San Antonio since 2004.











