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 Houston, CA | Rowan Construction Group
We install, repair, and rebuild Unilock paver driveways, patios, and retaining walls across Houston. Rowan Construction Group is an independent contractor working with Unilock products daily, not a manufacturer representative. The one thing that changes almost every Unilock job here: Houston’s expansive black clay, which swells and shrinks through wet-dry cycles and slowly destroys paver bases that would hold up fine in San Antonio or Dallas. Call (470) 298-9650 for a written price before any work starts.
Why Houston Residents Choose Us for Unilock Service
We’ve pulled apart enough failed paver installations in Houston to know the difference between a product problem and a base problem. That matters because Unilock pavers themselves rarely fail. The Courtstone driveway with a two-inch dip at the garage entrance? That’s clay movement underneath, not the paver. The Brussels Block patio turning chalky white? That’s efflorescence from months of Houston humidity, not a manufacturing defect. Our team has been building and repairing hardscape since 2007, with over 4,000 projects written up and documented start to finish. Unilock sales & service work comes down to knowing what you’re looking at before you touch anything. Grant Rowan trained in construction technology at Los Angeles Trade-Technical College and has spent two decades on residential projects across Los Angeles County, but the discipline we bring to Houston is the same: measure twice, say it once, show your work.
Common Unilock Construction Problems We Solve in Houston
- Localized settlement and edge heave on driveways. Houston’s gumbo clay expands when saturated and contracts during drought. We regularly see Unilock Brussels Block driveways with ramping at the street edge or dips where the garage slab meets the pavers. The fix is almost never just re-leveling a few pavers; the base underneath has to be addressed or the same failure returns within a year.
- Efflorescence staining on new concrete pavers. Houston’s 50-plus inches of annual rain and constant humidity pull soluble salts to the surface of fresh Unilock Courtstone, leaving white chalky deposits. It’s cosmetic, not structural, but it looks wrong. We treat it and explain what the homeowner should expect during the first curing season.
- Joint sand washout and ant intrusion. After a Houston downpour, standard joint sand in Unilock patios washes out fast, leaving open seams that ants and weeds colonize. We specify high-performance polymeric sand from Houston suppliers that locks together and resists washout far better than big-box alternatives.
- Retaining wall bulge and shifting. Unilock Rivercrest Wall blocks carry serious lateral load. When Houston’s saturated clay swells behind a wall and drainage wasn’t installed correctly, the wall starts to lean or bulge. We’ve rebuilt walls in Meyerland and Friendswood where the original installers skipped the drainage gravel and weep holes entirely.
- Flood undermining in low-lying neighborhoods. Repeated flooding before and during Harvey compromised paver bases in areas like Meyerland and Kashmere Gardens. The pavers look fine from above, but the sand and gravel underneath have washed out, leaving voids. In those cases, patch repairs are a waste of money; the base needs full recompaction and reinstallation.
BeforeAfterUnilock Service in Houston: What Local Conditions Mean for Your Equipment
Houston is the only major U.S. city without traditional zoning. That sounds abstract until you’re planning a Unilock paver driveway in the Heights and you find out the project hinges on deed restrictions and Chapter 42 lot-platting rules instead of a zoning variance. A contractor who doesn’t know those thresholds is setting the client up for a permit surprise. Our crews coordinate those approvals before a single paver is placed. We’ve been through it enough times to know which questions the permit office asks and which neighborhood associations require board review. That’s the part of Unilock work in Houston that does not show up on any manufacturer’s installation guide, and it’s the part that determines whether the project moves in March or stalls until October.
Unilock Models & Products We Service in Houston
We work with Unilock Courtstone, Brussels Block, Town Hall, and Rivercrest Wall on a regular basis. For repairs, we specify genuine Unilock pavers or matching profiles so color and dimensional continuity stay consistent with the original installation. But we don’t default to OEM for everything. Jointing sand and geotextile fabrics often perform better when sourced from Houston suppliers who understand clay movement and washout in our specific conditions. We repair pavers and walls when substrate and drainage issues are minor. If the base has failed from repeated clay heave or flood undermining, we recommend full base recompaction and reinstallation rather than patch work. Patching a failed base in Houston is like repainting a ceiling with a leak above it.
Unilock Service Pricing in Houston
Unilock paver work in Houston follows a predictable range, and we put the number in writing before anyone picks up a tool. A paver driveway installation using Unilock pavers runs $7,000 to $18,000 depending on size and base depth. Paver patio installations run $3,500 to $11,000. Outdoor tile compatible with Unilock hardscape projects runs $2,000 to $6,500. What drives the cost in Houston specifically is base preparation: the deeper we have to excavate to get past the unstable clay layer, the more material and labor go into the job. That’s the line item that separates a five-year driveway from a twenty-year driveway. A free estimate includes a written scope, a written warranty, and a documented photo record of what we found. Call (470) 298-9650 for your exact number.
Serving Houston, TX - Our Local Coverage Area
We’re based in the Houston 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 Houston
They hold up as a surface, but the base underneath is what fails in repeated flooding. Meyerland’s repeated inundation washes out sand and fines, leaving voids that cause settlement within weeks of a flood. We build with geogrid-reinforced base and non-woven separation fabric for exactly this reason. Call (470) 298-9650 to get a written assessment of your specific lot.
Yes, if the wall was built with proper drainage. The problem is that many Houston contractors skip the drainage gravel and weep holes, and saturated gumbo clay exerts enormous lateral pressure when it expands. We rebuild underperforming walls with clean drainage stone behind the block and a perforated drain line at the base. If your wall is leaning after Harvey, get it looked at before the next heavy rain.
That’s efflorescence, and it’s common on new concrete pavers in humid climates. Soluble salts in the paver migrate to the surface as moisture evaporates. In Houston, where humidity stays high and rain comes often, it can look pronounced. We can clean it with appropriate products and explain what to expect as the pavers finish curing. It is not a defect and does not affect strength.
Often yes, but under deed restrictions and Chapter 42 lot-platting rules rather than a zoning code, because Houston has no traditional zoning. The Heights has active neighborhood association oversight, and some blocks enforce specific impervious surface limits. We coordinate those approvals before work starts so the client never gets a stop-work order. Call (470) 298-9650 and we’ll check your specific address.
It depends on what we find underneath. If a single section has settled because a downspout washed out the sand, we can reset that area. But if the clay has heaved or the base was too thin from the start, patching will fail again. We photograph what we find under the pavers and show you before recommending a repair scope. Estimates are free.
Service Areas Near Houston
We serve Houston proper plus the surrounding cities and towns where Unilock paver work comes up regularly: Sugar Land, Katy, Pearland, Clear Lake, and Friendswood. For work in other parts of Texas, see our Unilock service in San Antonio page. For projects in California, visit Unilock service in San Diego. Our full coverage area is listed on our Houston service area page.
Book Your Unilock Service in Houston Today
Call (470) 298-9650 and you’ll get a written price before any work starts. No change order happens without your signature. That’s been the standard since 2007, and it’s on every page of our paperwork.
Written by Grant Rowan, Owner at Rowan Construction Group, serving Houston since our first local project in 2007.