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Unilock Construction in Los Serranos, CA | San Bernardino Contractors
We install and repair Unilock paver driveways, patios, and retaining walls across Los Serranos (91709), and the work here is different from flatland jobs. Los Serranos sits at the foot of the Chino Hills, where lots drain steeply toward the valley, so every Unilock project has to account for concentrated winter runoff and slope creep—experience we’ve also applied to Unilock service in Chino. That’s the conversation we start with, because skipping it means paying for the same wall twice. Call (855) 473-5620 for a free estimate from a contractor who knows Unilock product behavior on hillside grades.
Why Los Serranos Residents Choose Us for Unilock Service
We know Unilock the way a mechanic knows a specific engine, not the way a showroom rep reads a spec sheet. We’ve installed and repaired Unilock sales & service systems on some of the steepest, most runoff-prone lots in Los Serranos, so we understand how Brussels Block holds a 12% grade and what happens when an Estate Wall goes up without enough drainage aggregate behind it. Ruben Castillo, our owner, grew up in San Bernardino’s Westside watching his uncle frame and reroof houses on a shoestring, then got serious about load paths and structural details at San Bernardino Valley College. That background means we approach every Unilock wall in Los Serranos as a structure first and a surface second.
We’re an independent Unilock service provider, not a manufacturer affiliate or authorized dealer. That’s an advantage for you. We’re not obligated to push one product line. If a wall cap can be re-set and re-glued economically, we’ll tell you. If the base is shot and the wall needs to come down, we’ll tell you that too, with the exact reasons why.
Styles & brands we work with







Common Unilock Construction Problems We Solve in Los Serranos
- Paver migration and joint sand loss on sloped driveways. When a paver field on a Los Serranos hillside loses its joint sand after the first real rain, the usual culprit is a base that was compacted without geogrid reinforcement. Runoff accelerates down these grades, and water moving under the pavers carries the fines out with it.
- Retaining wall settlement and bulging. The clay-heavy soils above many Los Serranos lots hold water. When a Unilock Estate Wall is built without enough drainage aggregate or weep holes, hydrostatic pressure builds behind it and the face begins to push out. We see this on older walls near the country club area where flat-lot details were used on a slope.
- Surface scaling and efflorescence. The wet-dry cycle of Los Serranos winters, followed by Santa Ana wind-driven dust in summer, beats up unsealed Unilock pavers. Older installations develop a chalky white bloom and surface pitting that’s cosmetic but persistent.
- Wall cap displacement on canyon-edge terraces. Root intrusion from mature oaks and soil creep on the uphill side slowly separate wall caps from the block below. By the time a homeowner notices, the cap has shifted an inch or more and water is getting in.
- Paver heaving along the 71 corridor. Lots graded for older ranch homes near the expressway often have irregular fill. When that fill settles unevenly under a Unilock patio, you get dips and ridges that were not in the original installation plan.
Unilock Service in Los Serranos: What Local Conditions Mean for Your Equipment
Los Serranos sits where the Chino Hills foothills drain steeply toward the valley. Winter storms send runoff and slope movement across these parcels, and flat-lot details from neighboring Chino or Ontario simply don’t hold up on these grades. Our Yorba Linda Unilock service covers similar foothill terrain. We’ve seen Unilock paver driveways start failing within two seasons because the original installer treated the site like a level lot. The base was too thin, there was no toe drain, and the paver field had no way to shed the sheet flow that comes off the hillside above. A homeowner near the Los Serranos Country Club had exactly this problem: a Brussels Block driveway that heaved and lost joint sand every rainy season. Our crew pulled the paver field, re-graded with a geogrid-reinforced base, and added a toe drain tied to a dry well. Two winters later the driveway is still tight and the runoff no longer sheets across the garage slab. That fix required understanding where the water was coming from, not just what the pavers were doing. If you’re on a hillside lot in Los Serranos, your Unilock contractor needs to think like a drainage engineer first.
Unilock Models & Products We Service in Los Serranos
We work with the full Unilock product range commonly installed across the Chino Hills foothills: Brussels Block for classic driveways and patios, Beacon Hill for a more dimensional, tumbled look, Estate Wall for large retaining structures, and Lineo for a clean, modern plank aesthetic. For structural repairs we use Unilock OEM wall caps, geogrid, and drainage components. But for base materials and joint sand we specify quality aftermarket products that meet or exceed Unilock specs for our local soil and slope conditions. We stock common OEM wall caps and paver replacements locally, which means faster turnaround for Los Serranos repairs than ordering through a distant distributor, and we bring the same speed to our Unilock repair in Montclair.
See the difference
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AfterUnilock Service Pricing in Los Serranos
What you’ll pay depends on the size of the area, the Unilock product line you choose, and how much site work the slope requires. Here’s what homeowners in the 91709 ZIP code should expect for common Unilock projects, with pricing comparable to our Pomona Unilock service:
| Project | Typical Los Serranos Price Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Home Addition (with Unilock site work) | $45,000 – $130,000 |
Your free estimate includes a site walk, an assessment of slope drainage, and a written line-item breakdown so you know what you’re paying for before work starts. Call (855) 473-5620 to schedule yours.
Serving Los Serranos, CA — Our Local Coverage Area
We’re based in the Los Serranos 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 Los Serranos
Yes. On a sloped Los Serranos lot, a standard 4- to 6-inch compacted base is often insufficient. We specify geogrid reinforcement and additional drainage to handle concentrated winter runoff and prevent paver migration.
Sometimes. If the block faces are intact and the lean is minor, we can reset the upper courses and add drainage relief behind the wall. If the base is undermined or the geogrid was never installed, full replacement is the only way to stop recurring movement. Call (855) 473-5620 and we’ll assess the wall in person.
Santa Ana winds carry dust and fine grit that scours unsealed paver surfaces and accelerates joint sand loss. We recommend sealing Unilock pavers on exposed Los Serranos lots and checking joint sand after each wind season.
For sloped driveways we typically recommend Unilock Brussels Block or Beacon Hill in a thicker paver profile, installed over a geogrid-reinforced base with proper edge restraint. The product matters less than the base and drainage details on a steep grade.
Yes. When we build home additions in Los Serranos, we coordinate the Unilock site work, retaining walls, and paver flatwork as part of the same project. One contractor, every phase. Call (855) 473-5620 for a free estimate that covers the whole scope.
Service Areas Near Los Serranos
Beyond Los Serranos, our crews work Unilock projects in Fontana, Bloomington, Rialto, Sunnyslope, and Glen Avon. We also cover Los Serranos service area thoroughly, and for hillside work farther up the mountains we provide Unilock service in Lake Arrowhead with the same slope-focused approach. If you’re on the other side of the 71, take a look at our Unilock service in El Cerrito Corona page for details.
Book Your Unilock Service in Los Serranos Today
If your Unilock driveway is losing sand or your retaining wall is starting to lean, don’t wait for the next rain. Call (855) 473-5620 to schedule a free estimate with our team. We’ll walk the site, talk through what’s actually happening on your slope, and give you a written plan.
Written by Ruben Castillo, Owner at San Bernardino Contractors, serving Los Serranos and the Inland Empire.