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Unilock Construction in Los Serranos, CA | Square One Builders
We’re an independent hardscape and construction crew that installs and repairs Unilock pavers, walls, and steps throughout Los Serranos. We work with the product line constantly, not for the manufacturer, and we know the county-versus-city permitting split here well enough to spec a driveway or patio that passes inspection the first time. If you’re planning Unilock work in the 91709 ZIP, call Square One Builders at (877) 688-9930 for a free estimate.
Why Los Serranos Residents Choose Us for Unilock Service
Unilock is one of the few paver brands we recommend without hesitation for the Inland Empire climate. The concrete units hold up under hot summers better than most, and the color range fits the older ranch-style homes along the Chino Hills border as well as the newer tract infill near Los Serranos Country Club. Brent Calloway, our owner and general contractor, grew up in Midway City and spent nearly three decades on Orange County job sites before building Square One Builders. That background means we approach Unilock work the way a general contractor would: subgrade first, drainage second, pavers third. Too many paver failures in Los Serranos trace back to what’s underneath, not the paver itself. We’re the Unilock sales & service team that treats your patio or driveway as a structural project, not a weekend DIY. We source genuine Unilock units so color and dimension match, and we pair them with quality compatible base, edging, and polymeric joint sand. If you live in Los Serranos, you get a crew that already knows your jurisdiction and your soil.
Styles & brands we work with
Common Unilock Construction Problems We Solve in Los Serranos
- Efflorescence bloom on Brussels Block and Cambridge Cobble pavers. Los Serranos summers bake the surface while irrigation cycles and the occasional winter rain pull salts up through the concrete. You’ll see a chalky white haze across the field. We clean it correctly and adjust the base drainage so it doesn’t return in a year.
- Base and edge-restraint failure on sloped lots. The hillside properties near the country club side of Los Serranos shed water fast in winter. When runoff scours the compacted aggregate under a Unilock driveway or patio, pavers shift, heave, or sink at the edges. We re-grade, re-compact, and install proper edge restraint so the field stays locked.
- Polymeric sand loss after Santa Ana winds. Dry wind events strip joint material from Unilock patios across Los Serranos. Once the sand is gone, pavers start to chatter and shift. We re-sand with a quality polymeric product and consolidate it properly so the joints survive the next wind season.
- Settlement cracks and bulging in Pisa2 retaining walls. A lot of DIY Pisa2 walls in Los Serranos were built without geogrid or drainage behind the block. Winter moisture builds up, the wall leans, and the face starts to bulge. We rebuild the wall with proper reinforcement and drainage so it actually holds.
- Failed base under older paver driveways needing replacement. Some 91709 driveways were laid years ago on thin base with no edge restraint. They sink, crack, and pool water. When the base is gone, we tell owners straight: this is a full rebuild, not a patch job. We price it honestly and do it once.
Unilock Service in Los Serranos: What Local Conditions Mean for Your Equipment
Los Serranos is one of the last unincorporated pockets of San Bernardino County completely surrounded by Chino Hills, just north of Unilock service in Chino. That jurisdictional quirk is not a trivia fact; it changes how every paver job gets permitted. A Unilock driveway on one side of a street can fall under county building and safety, while the house directly across goes through Chino Hills city plan check. The difference determines setback requirements, drainage standards, and inspection scheduling. We’ve seen projects stall for weeks because a contractor pulled the wrong permit. Before we stake out any paver patio or driveway in Los Serranos, we confirm which side of the line the parcel sits on. It’s the kind of local knowledge you don’t get from a generic paver installer working the whole Inland Empire. Down near the Los Serranos Country Club side of the 91709 ZIP, we rebuilt a Unilock Cambridge Cobble patio where winter runoff had scoured the base and heaved a third of the field. We pulled the affected pavers, re-graded the slope with proper drainage, re-compacted the aggregate base, re-set the cobble, and locked the edges with new restraint. The county inspector signed off on the drainage detail, and the patio now sheds water instead of pooling it.
Unilock Models & Products We Service in Los Serranos
We install and repair the full Unilock residential line you’re most likely to see across Los Serranos and into Yorba Linda Unilock service areas: Brussels Block, Cambridge Cobble, Beacon Hill Flagstone, and the Pisa2 wall system. Each has its own behavior. Brussels Block and Cambridge Cobble are workhorses for driveways and patios, but they’ll effloresce if base drainage is weak. Beacon Hill Flagstone gives a more natural flagging pattern for pool decks and walkways. Pisa2 walls need proper geogrid and drainage, especially on sloped Los Serranos lots. We source genuine Unilock pavers, caps, and wall units so new work matches existing field color and dimension. Underneath, we use quality compatible base, edging, and polymeric joint sand. If a patio or wall is structurally sound, we repair and re-sand rather than tear out. But when failed base or a leaning wall means full rebuild, we say so plainly and show you why.
See the difference
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AfterUnilock Service Pricing in Los Serranos
What you pay depends on the size of the field, the condition of the existing base, and whether we’re repairing or rebuilding. Here are the ranges we typically see for Unilock work in the 91709 ZIP:
| Service | Typical Range |
|---|---|
| Paver Patio Installation | $3,500 – $11,000 |
| Paver Driveway Installation | $7,000 – $18,000 |
| Driveway Replacement | $5,000 – $14,000 |
| Driveway Sealing | $250 – $700 |
Your free estimate includes a site visit, a base inspection, and a written line-item quote. We don’t give ballpark numbers over the phone without seeing the ground, because a patio that looks fine on the surface can be sitting on a failed base. Call (877) 688-9930 to schedule yours.
Serving Los Serranos, CA — Our Local Coverage Area
We’re based in the Los Serranos area and know this community well, with Unilock repair in Montclair also in our coverage zone. 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, and which one you need depends on the exact parcel. Los Serranos is unincorporated San Bernardino County but completely surrounded by Chino Hills, so a driveway on one side of the street may be county jurisdiction while the other side goes through city plan check. We confirm the jurisdiction before pulling any permit. Call (877) 688-9930 and we’ll check your address.
That white haze is efflorescence, and in Los Serranos it’s driven by the hot, dry summers combined with irrigation and rain cycles pulling salts through the concrete. It’s not a defect in the paver. The fix is proper base drainage and a correct cleaning process, not just a surface rinse. Call (877) 688-9930 and we’ll diagnose it on site.
Yes. Santa Ana wind events in Los Serranos strip polymeric sand from joints, especially on exposed lots. Once the joint material is gone, pavers shift and the field starts to fail. We re-sand with quality polymeric material and consolidate it properly so the joints survive the next wind season. Call (877) 688-9930 to schedule a joint inspection before summer.
Only if it was built with proper geogrid and drainage behind the block. Most DIY Pisa2 walls in the 91709 ZIP were not, and they lean, bulge, or crack after a wet winter. We rebuild them with the reinforcement and drainage the slope demands. Call (877) 688-9930 and we’ll tell you what your wall actually needs.
Yes. We source genuine Unilock pavers, caps, and wall units in the same color and dimension so new work ties into your existing field. If the original color has faded, we’ll show you options before we order. Call (877) 688-9930 for a match assessment and quote.
Service Areas Near Los Serranos
Square One Builders serves Los Serranos and the surrounding communities. We regularly handle Unilock work in Los Serranos service area, Corona, La Verne, Montclair, Claremont, Norco, and El Cerrito. If you’re just outside the 91709 ZIP, ask us about coverage. We also provide Unilock service in Rancho Santa Margarita and Unilock service in Trabuco Canyon for projects on the Orange County side.
Book Your Unilock Service in Los Serranos Today
From the ground up, we spec the right Unilock product for your Los Serranos project, confirm the right jurisdiction, and build it to stay that way, just as we do for Pomona Unilock service calls. Start from square one, build it right. Call (877) 688-9930 to schedule your free estimate.
Written by Brent Calloway, Owner & General Contractor at Square One Builders, serving Los Serranos and the surrounding Inland Empire communities.