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Unilock Construction in San Antonio Heights, CA | San Bernardino Contractors
We provide independent Unilock sales & service across San Antonio Heights, from paver driveways and patios to geogrid-reinforced retaining walls on canyon-edge lots. The thing that makes our Unilock work here different is simple: we build for slope, drainage, and wildland-urban interface code, not a flat-lot template. If you’re planning Unilock work in the 91784 zip code, call (855) 473-5620 for a free estimate and a conversation about your actual grade.
Why San Antonio Heights Residents Choose Us for Unilock Service
San Antonio Heights is not Upland. Homes here sit on steep foothill parcels where a paver driveway has to shed water without taking the base with it, and a retaining wall on a canyon edge is doing structural work, not just holding back a flower bed. That’s the difference between someone who installs Unilock in Upland and someone who installs it correctly for this terrain.
Ruben Castillo, our owner, grew up in the Westside of San Bernardino watching his uncle reroof houses and frame garages on a shoestring. That hands-on education is why we spec geogrid reinforcement and free-draining gravel backfill as standard on any wall over two feet here, not as an upgrade. Most of our San Antonio Heights clients come from referrals, neighbors who watched our crew cut in a restrained edge and clean up after themselves. We do Unilock in Rancho Cucamonga and surrounding foothills the way it needs to be done on a hillside, not the way a brochure suggests it be done on flat ground.
Styles & brands we work with







Common Unilock Construction Problems We Solve in San Antonio Heights
- Rutting and joint-sand washout on steep driveways. When Brussels Block pavers go down on a thin, poorly compacted base, winter rain sheets downhill and carries the joint sand right out. We excavate to a properly compacted aggregate base and re-set the units so they don’t migrate.
- Bowing or settling Beacon Hill and Estate Wall courses. On canyon-edge lots, wall blocks stacked without geogrid and gravel drainage eventually lean toward the valley. We re-stack with the full structural system, because a failed wall above homes below is not a cosmetic problem.
- Efflorescence on shaded north-facing patios. Winter rain cycles followed by dry foothill summers pull soluble salts to the surface of Town Hall and Copthorne pavers. It’s mostly cosmetic and usually cleanable, but the pattern tells us whether drainage behind the pavers is working.
- Paver creep at driveway aprons. Where Unilock units meet an asphalt or concrete transition without a soldier course and proper edge restraint, the pavers drift. We cut in restrained edges so the pattern stays true.
- Surface spalling on exposed hillside patios. Santa Ana wind-driven debris and intense summer UV take a toll on face texture over time. Matching replacement units from Unilock’s current product lines keeps color and profile consistent with the original run.
Unilock Service in San Antonio Heights: What Local Conditions Mean for Your Pavers
Here’s what matters and what most contractors miss. Because San Antonio Heights is an unincorporated canyon-edge foothill community, hardscape and wall work here is judged against slope stability and downstream debris risk rather than flat-lot finish. A failed retaining wall above the valley can send material toward homes below, and the county’s review reflects that. So grading and drainage plans on a Unilock driveway or wall get scrutinized far harder than they would in Upland directly below, where the ground runs flat and the same wall is just a landscape feature. On a steep lot near the canyon edge, the base depth, compaction, and drainage swale aren’t details. They are the difference between a paver installation that holds for twenty years and one that starts rutting after the first hard winter rain. That’s the standard we build to in the 91784 area.
Unilock Models & Products We Service in San Antonio Heights
We work across the Unilock lines that make sense for foothill terrain and mid-century custom homes here. Brussels Block and Brussels Dimensional for driveways and walkways. Beacon Hill and Estate Wall for retaining walls where the block face needs to look intentional, not utilitarian. U-Cara multi-face systems for walls that double as architectural features on homes built in the 1950s and 60s with real stonework elsewhere. Town Hall and Copthorne for patios where homeowners want an aged, tumbled look that matches scattered ranch-style hardscape.
For any Unilock repair in Claremont or addition, we use genuine Unilock units with their matching joint sand and edge restraints, so courses, thickness, and face color tie into existing work. Base and drainage materials we spec by performance: geogrid, drainage gravel, perforated pipe. When a wall is failing because of a bad base rather than cracked block, we fix the system and re-use sound Unilock material. Full replacement only when blocks are cracked through or settlement is structural.
See the difference
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After
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AfterUnilock Service Pricing in San Antonio Heights
Pricing here tracks the slopes. Steeper grades mean deeper excavation, more base material, and more drainage work than the same footprint on flat ground. Here’s what Unilock work in San Antonio Heights typically runs:
| Service | Typical Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Concrete Driveway Installation | $4,500 – $12,000 |
| Driveway Replacement | $5,000 – $14,000 |
| Home Addition | $45,000 – $130,000 |
Every estimate includes a site visit to check the actual grade, drainage, and existing base conditions. Call (855) 473-5620 for a free estimate, written line-item quote, and no change-order surprises once we start.
Serving San Antonio Heights, CA — Our Local Coverage Area
We’re our General Contractor in San Antonio Heights 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 Heights
Yes, when the base is done right. The key is full-depth excavation with properly compacted aggregate, a restrained soldier-course edge, and drainage that moves water off the slope instead of through the joint sand. We’ve re-set drives on canyon-edge lots that were rutting within two years of a flat-lot install. Call (855) 473-5620 for an exact quote on your grade.
We treat it as a structural system, not a stacked-block project. That means geogrid reinforcement at design intervals, free-draining gravel backfill, and a footing built to the height and soil conditions. On a bowing Estate Wall, we re-stack using the original Unilock block when it’s still sound, then fix the base and drainage behind it. Estimates are free.
That white residue is soluble salts moving through the paver and crystallizing on the surface. It’s common on shaded north-facing patios in San Antonio Heights after wet winters and dry summers. It’s usually cleanable, but persistent efflorescence can point to trapped moisture behind the wall or under the patio, which is worth a look. Call (855) 473-5620 and we’ll diagnose it on site.
We use current Unilock units from the same product line and color family as your existing work, then blend the new and old courses so the transition doesn’t look like a patch job. Where the original line has been updated or the color has weathered, we’ll show you samples against your existing pavers before we commit.
For most San Antonio Heights driveways, segmental Unilock pavers outperform a single concrete pour because they flex with the ground instead of cracking when the hillside shifts. But they only work if the base and edge restraint are built for slope. A concrete driveway on a bad base cracks; a paver driveway on a bad base ruts. The material matters less than the prep. Call (855) 473-5620 for a read on your specific driveway.
Service Areas Near San Antonio Heights
We work throughout the foothill communities and surrounding Inland Empire cities. If you’re in Unilock service in Crestline or Unilock service in Montclair, we’ll bring the same slope-focused approach to your project. We also serve Fontana, Rialto, and Bloomington, with the same site-specific base and drainage standards we use in the 91784 zip code. See our full San Antonio Heights service area coverage for details.
Book Your Unilock Service in San Antonio Heights Today
If it’s not built right the first time, you’re just paying for it twice. We’d rather show you the base depth, the geogrid, and the drainage on your actual lot than tell you it’ll be fine. Call (855) 473-5620 to schedule your free estimate, and we’ll walk the site with you.
Written by Ruben Castillo, Owner at San Bernardino Contractors, serving San Antonio Heights since day one.