Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterUnilock Construction in San Antonio, CA | Rowan Construction Group
We install, repair, and renovate Unilock pavers, retaining walls, and outdoor living spaces across San Antonio as an independent contractor. The split geology here, expansive Vertisol clay on the south and east, Edwards limestone on the north and northwest, changes how Unilock work gets done depending on your side of town. That’s the thing most out-of-town crews miss, and it’s the reason so many San Antonio paver jobs fail within a few seasons. Call (470) 298-9650 for a written estimate before anyone starts digging.
We carry Unilock sales & service depth, including direct access to OEM replacement units for Beacon Hill Flagstone, Courtstone, Brussels Block, and Richcliff lines. As an independent provider, we’re not tied to factory labor rates or single-part sourcing, which means we specify what actually works for your site conditions, not what a manufacturer program tells us to sell. Rowan Construction Group covers the full San Antonio service area, from Alamo Heights slab homes to Stone Oak limestone lots.
Why San Antonio Residents Choose Us for Unilock Service
Most paver installers in San Antonio know concrete. Fewer understand how Unilock’s specific joint tolerances, base requirements, and color-matching protocols interact with our local soils. Grant Rowan trained in construction technology at Los Angeles Trade-Technical College, covering framing, concrete, and project estimating before taking on paying jobs. What he learned there, and what we’ve applied across 4,000-plus projects since 2007, is that the substrate matters more than the paver. You can lay the best Unilock unit on a bad base and watch it fail by spring.
Every job we quote gets a written flat price and a written scope under Clause 1 of the Haven Standard. No work proceeds on a change until the change order is signed. That discipline is why our projects finish within a few percent of the number you agreed to. We document every visit with a photo record, included as standard, so you see what we found under the old pavers and what we did about it. Our crews are background-checked and uniformed. A live person answers the phone 24/7.
Common Unilock Construction Problems We Solve in San Antonio
- Efflorescence on pavers over limestone subgrades. On the north side, Unilock pavers laid over shallow Edwards limestone show white mineral blooms because moisture wicks upward through the base and deposits salts on the surface. We solve this with open-graded base layers and edge drains that move water away before it can rise through the paver.
- Settling and lippage on expansive clay. South and east San Antonio sit on Vertisol clay that shrinks during drought, creating 1-2 inch vertical drops between adjacent Unilock units. The fix is not more sand; it’s proper base depth and soil stabilization before the pavers go back down.
- Joint sand washout after flash floods. San Antonio’s flash-flood alley alternates drought with intense downpours. Driveways and patios with minimal slope lose polymeric sand from every joint after a heavy rain. We rebuild with SAWS-compliant drainage and specified base layers that hold up to a two-inch storm.
- Cracking and spalling from summer heat. Weeks of 100°F-plus temperatures stress older Unilock pavers, especially where proper curing or joint stabilization was skipped. We time concrete and base work for early morning and use curing compounds that prevent surface cracking before the heat sets in.
- Root uplift under paver sections. Large oak and mesquite roots on older lots, particularly westside and near southside homes, push Unilock units upward unevenly. We cut, barrier, and reset only the affected section, saving the intact pavers and matching OEM replacements to the original color and dimension.
BeforeAfterUnilock Service in San Antonio: What Local Conditions Mean for Your Equipment
Here is the fact most San Antonio homeowners never hear until after the quote. Inside the Edwards Aquifer Recharge Zone, which covers a huge swath of the north and northwest city including Stone Oak, Helotes, and the IH-10 corridor, any Unilock patio or driveway expansion over 500 square feet triggers SAWS impervious-cover review. That means the site layout, parking, and stormwater design for your paver project has to be engineered around drainage requirements that do not apply in Austin or New Braunfels. We engineer permeable paver layouts and drainage swales into the plan from the start. If a crew quotes the job assuming standard soil and standard drainage, they hit two problems at once: a limestone shelf two to four feet below grade that needs a concrete saw or hydraulic breaker to cut through, and a SAWS review that changes the entire paver base specification. Out-of-town crews routinely underbid trenching and excavation work because they quote for normal soil, then find continuous Edwards limestone at two to three feet and blow their labor budget. We know the geology before we quote. Measure twice, say it once, show your work.
Unilock Models & Products We Service in San Antonio
We install and repair Unilock Beacon Hill Flagstone, Courtstone, Brussels Block, and Richcliff lines. For repairs, we use OEM Unilock replacement units so the color and dimensional match is exact, no guessing. For new installations, we specify Unilock-compatible aggregate and polymeric sand from proven SAWS-compliant sources, because the base is where San Antonio paver jobs succeed or fail. We stock common OEM replacement units locally for faster turnaround on San Antonio repairs. Our rule on repair versus replace: we repair rather than replace when at least 70% of the original pavers are intact. Full teardown makes sense when base failure or drainage has compromised the entire area. We’ll tell you which applies to your site, in writing, before you decide.
Unilock Service Pricing in San Antonio
What your Unilock project costs depends on three things: the site geology, the drainage requirements, and whether we’re repairing a section or rebuilding from the base up on our Driveway & Pavers in San Antonio. A paver driveway in Stone Oak on limestone runs differently from one in Alamo Heights on clay. Here are the price ranges we work within for San Antonio projects:
| Service | Price Range |
|---|---|
| Paver Driveway Installation | $7,000-$18,000 |
| Paver Patio Installation | $3,500-$11,000 |
| Driveway Replacement | $5,000-$14,000 |
Every quote includes the written scope, the written warranty, and the photo documentation standard. Call (470) 298-9650 to schedule your free estimate. We’ll put the number in writing before anyone picks up a tool.
Serving San Antonio, TX - Our Local Coverage Area
We’re based in the San Antonio area and know this community well, and we also handle Fence Installation in San Antonio. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Unilock Construction in San Antonio
Your patio sits on expansive Vertisol clay. During drought, the clay shrinks and pulls away from the paver base, creating vertical drops between adjacent units. The fix is not adding more sand; it’s stabilizing the soil and rebuilding the base to the correct depth so the pavers have something stable to sit on. Call (470) 298-9650 for a free estimate on a proper base rebuild.
Yes. We cut and barrier the root, reset the intact pavers, and source OEM Courtstone replacement units for the ones that cracked. You don’t need a full driveway replacement when a localized section failed. Call us for a written quote on the section repair.
In nearly every Helotes flooding case we see, the problem is the base and drainage, not the pavers. The patio likely has insufficient slope and undersized drainage, so water pools and pushes joint sand out. Unilock units themselves don’t cause flooding. We rebuild the base with an open-graded layer and add edge drains so water moves off the patio. Call (470) 298-9650 for a free site inspection and written estimate.
We’re not cheaper because we cut corners. We’re independent, which means we quote based on your actual site conditions, not a factory program’s labor rates or parts markup. On a Richcliff patio, the base preparation and drainage engineering matter more than the paver unit cost. We’ll show you the written numbers and let you compare. Bring a competitor’s quote and we’ll review it line by line at no charge.
If at least 70% of the original pavers are intact and the base is still stable, repair makes sense. If the base has failed or drainage has compromised the entire area, replacement is the cheaper long-term option. We’ll document the condition in writing and photos, then give you a flat written price either way. Call (470) 298-9650 to schedule the inspection.
Service Areas Near San Antonio
We serve San Antonio and the surrounding region, including Alamo Heights, Stone Oak, Helotes, and the northwest IH-10 corridor. We also cover projects in Unilock service in San Diego for clients with properties in both metros, and Unilock service in Dallas for those managing projects up north.
Book Your Unilock Service in San Antonio Today
Call (470) 298-9650 to schedule your free estimate. We’ll survey your San Antonio site, assess the geology and drainage, and put a written flat price in your hands before any work begins. The 365-Day Done Right Promise applies to every Unilock job we do. If it’s not done right, we make it right.
Written by Grant Rowan, Owner at Rowan Construction Group, serving San Antonio since 2007.