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Unilock Construction in Ontario, CA | San Bernardino Contractors
We’re an independent Unilock service provider, not authorized by Unilock, and our crew has installed and repaired Unilock pavers, walls, and hardscapes across Ontario for years. The thing that makes our Unilock work different here is simple: we know how Inland Empire heat, Santa Ana winds, and Ontario’s hard water break down paver installations, and we correct the root cause instead of just replacing the surface. If you’re in Ontario and your Unilock patio, driveway, or wall isn’t holding up, call Ruben Castillo at (855) 473-5620 for a straight answer and a free estimate. We sell and service Unilock hardscapes through Unilock sales & service, and we’re the crew homeowners in the 91761, 91762, 91764, and 91798 ZIPs call when they want it fixed once.
Why Ontario Residents Choose Us for Unilock Service
Most contractors in Ontario can lay pavers. Far fewer can tell you why your Unilock Brussels Block pavers are blooming white in July, or why your Beacon Hill patio heaved after the first Santa Ana event of the fall. That’s where we come in. Ruben Castillo, our owner, grew up in San Bernardino’s Westside neighborhood watching his uncle reroof houses and frame garages, then went through construction technology training at San Bernardino Valley College, where he learned to read plans, understand load paths, and not cut corners on anything structural. He’s spent the better part of two decades working across the Inland Empire, and that’s two decades of watching pavers fail in very specific, very fixable ways.
We keep OEM-model Unilock pavers and profile-matched components available for repairs, and we stock quality aftermarket polymeric sands and base materials that actually perform in Ontario’s heat (the factory sand often doesn’t). Being independent means we’re not tied to one product line or one fix. We repair when the base is sound and recommend replacement only when widespread settling or spalling makes patching uneconomical. That’s the honesty homeowners appreciate when they’ve already spent good money on a hardscape once. We serve all of Ontario service area ZIP codes, and we’ll tell you plainly what your project needs.
Styles & brands we work with







Common Unilock Construction Problems We Solve in Ontario
Here are the five failure modes we see most often on Unilock hardscapes in Ontario. Each one ties back to a local condition, not a manufacturing defect.
- Efflorescence on Unilock Brussels Block pavers. Ontario’s hard water, combined with our hot, dry summers, pulls minerals through the paver and leaves them sitting on top. A typical garden hose watering doesn’t rinse it away. We strip the bloom, correct the moisture path, and reseal with a breathable sealer so it doesn’t return next June.
- Paver heaving and shifting from Santa Ana winds and rapid heat cycling. When people in Ontario’s older postwar tract homes had their original driveways replaced, many contractors skimped on base compaction. The freeze-thaw isn’t our problem here; it’s the sudden temperature swings and wind-driven dust loading. We remove, recompact, and reinstall with proper aggregate depth.
- UV and smog fading on Unilock Beacon Hill and Thornbury pavers. Ontario traps heat against the mountains, and that prolonged UV exposure, combined with smog, oxidizes paver surfaces faster than you’d see on the coast. We clean, color-restore, and reseal with a product that filters UV rather than sitting on top.
- Edge spalling and chipping on Unilock Pisa and similar tumbled pavers. This happens most often where residential hardscapes meet concrete tilt-up warehouse aprons along the 60/10 freeway corridor. Heavy truck traffic transfers vibration into abutting edges. We install steel edge restraint and isolate the residential paver layer from the commercial slab.
- Termite and ant colony undermining beneath patios. Across Ontario’s older neighborhoods, we find paver patios with voids underneath because ants built colonies in uncompacted base material. We excavate to sound ground, treat, and rebuild the base with a graded aggregate that ants won’t colonize.
Unilock Service in Ontario: What Local Conditions Mean for Your Equipment
Ontario’s postwar tract homes in ZIPs 91761, 91762, and 91764 often have original concrete driveways that are too narrow and pitched for modern vehicles. That’s a very Ontario problem. A 1960s ranch on a 60-foot-wide lot got a 16-foot-wide driveway, because the original owners drove one sedan. Today that same house has two SUVs, maybe a work truck, and a trash bin that needs to clear the garage door. Unilock paver driveway replacements here typically require re-grading and widening to meet current city standards, which newer master-planned subdivisions don’t need because their driveways were built to modern specs. When we do a paver driveway in Ontario’s older neighborhoods, we’re not just swapping concrete for pavers; we’re regrading the slope, widening the apron, and rebuilding the base so a delivery truck doesn’t crack it in year two. That’s the difference between a driveway that looks good and one that still works in ten years.
Unilock Models & Products We Service in Ontario
Our crews work on the full Unilock profile range that shows up in Ontario homes. The most common lines are Unilock Brussels Block, Unilock Beacon Hill, Unilock Thornbury, and Unilock Pisa. Brussels Block gives you that old-world irregular look; Beacon Hill and Thornbury are cleaner, more contemporary profiles; Pisa is a tumbled, softer-edged paver that works well around pools and patios. When we repair, we match the OEM profile and color family, typically from our local stock across Ontario. When we expand a patio or widen a driveway, we pull from current production runs and blend as needed. For joint sand and base material, we’ll go aftermarket where it makes sense: high-quality polymeric sand that won’t wash out during our infrequent but intense rain events, and base aggregate graded for Southern California soil movement. We’re not married to one supplier’s accessory line; we’re married to the installation lasting.
See the difference
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After
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After
Before
AfterUnilock Service Pricing in Ontario
| Service | Typical Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Driveway Replacement | $5,000 – $14,000 |
Those numbers aren’t guesswork. They’re based on real Ontario projects, where access, grading, and existing base condition set the spread. Call (855) 473-5620 for a free written estimate. We’ll show you exactly where your money goes.
Serving Ontario, CA — Our Local Coverage Area
We’re based in the Ontario area and also provide Upland Unilock service, so we 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 Ontario
Why do my Unilock pavers in Ontario show white chalky stains, and how do you fix it?
That white chalk is efflorescence, a mineral deposit that forms when Ontario’s hard water wicks through the paver and evaporates on the surface, leaving calcium carbonate behind. In our hot, dry summers, the minerals don’t rinse away like they would in a wetter climate. We’re the crew that fixes it properly: strip the bloom, correct the moisture path with drainage improvements, and reseal with a breathable product so the paver can still breathe without letting minerals surface. Call (855) 473-5620 for a quote on efflorescence removal and sealing.
Can Unilock pavers handle Ontario’s Santa Ana winds and summer heat without heaving?
Unilock pavers handle both fine, but the base underneath them often doesn’t. Heaving in Ontario is almost always a base compaction issue, not a paver issue. When Santa Ana winds hit 60 mph and the temperature swings 40 degrees in a day, an under-compacted base shifts. We rebuild using proper aggregate depth and compaction, then lock the pavers with a polymeric sand that stays put through wind and sun. If your patio has shifted, call (855) 473-5620.
My driveway in 91761 is original 1960s concrete and too narrow for my truck – can I widen it with Unilock pavers?
Yes, and it’s one of the most common jobs we do in Ontario’s older ZIPs. The original 1960s driveways in 91761 were built for one sedan, not a full-size truck and an SUV. We remove the old concrete, reground the base, and widen the driveway with Unilock Brussels Block or another paver profile that matches your home’s look. In Ontario, widening usually also means re-grading to direct water away from the garage. Call (855) 473-5620 for a free estimate on a widened paver driveway.
How do you repair settled Unilock pavers next to a warehouse or commercial building in Ontario?
When settled pavers sit adjacent to a concrete tilt-up warehouse or a commercial loading area in Ontario, the usual cause is truck vibration transferring through the slab into the paver layer. We isolate the residential paver system from the commercial slab with steel edge restraint and compacted aggregate, then reinstall the pavers at the correct grade. If you’ve got pavers settling along the 60/10 corridor near a commercial building, call (855) 473-5620 and we’ll come out and assess it.
What Unilock paver line works best for a patio in Ontario’s hot, dry climate?
For most Ontario patios, Unilock Beacon Hill or Thornbury hold up best because their smooth surfaces don’t trap dust and minerals the way tumbled profiles can. Brussels Block is a close second, but it needs more frequent cleaning in our hard-water climate. We can show you samples and talk honestly about maintenance expectations before you commit. Call (855) 473-5620 to schedule a patio consultation.
Service Areas Near Ontario
We work throughout Ontario and the surrounding cities: Fontana, Bloomington, Rialto, Sunnyslope, Glen Avon, and Muscoy. If you’re in one of these communities and need Unilock service, call (855) 473-5620 and we’ll get you on the schedule. We also offer Unilock service in Norco and Unilock service in Highland.
Book Your Unilock Service in Ontario Today
If your Unilock pavers are heaving, blooming white, or fading in the Ontario sun, don’t let it go another season. Call (855) 473-5620 and ask for Ruben. We’ll come out, assess the base, and give you a straight answer on repair versus replacement. Free estimates, no pressure, and a fix that holds up to the heat and wind this region throws at you.
Written by Ruben Castillo, Owner at San Bernardino Contractors, serving Ontario since he started working in the Inland Empire.