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Unilock Construction in Seven Trees, CA | San Bernardino Contractors
We install and repair Unilock paver driveways, patios, and retaining walls throughout Seven Trees, and we do it as an independent crew, not a Unilock dealer or authorized agent. What makes our work here different is simple: we know this neighborhood’s permitting split and its tight mid-century lots, which means we verify jurisdiction before we ever order units or cut base. If you’re planning a paver job in Seven Trees, call (855) 473-5620 for a free estimate.
Our company handles the whole home, from roofing to windows to hardscaping, and Unilock is one of the paver and retaining-wall systems we work with most. We’ve built and repaired Unilock installations across the South Bay, and we bring that same single-contractor accountability to every driveway, patio, and walkway here. You pick the material; we handle the build.
Why Seven Trees Residents Choose Us for Unilock Service
Unilock makes a good product. We’ve seen enough of it fail, though, to know that the unit is only as good as the base it sits on, and that’s where a lot of paver work in Seven Trees goes wrong. Lots here are narrow, many from the 1950s through the 1970s. Equipment access is tight. Crews rush the sub-base. Two years later the edge is creeping and the joints have blown out. We don’t rush it because we’re local and we know what this neighborhood’s lots do to a poorly prepared base, which is why homeowners looking for Unilock repair in Cambrian Park get the same careful approach.
Ruben Castillo owns San Bernardino Contractors. He grew up watching his uncle reroof houses and frame garages in San Bernardino, then went through construction technology training at San Bernardino Valley College, where he learned to read plans and respect load paths. He brings that same structural mindset to paver work: base compaction, slope, edge restraint. We’re not affiliated with Unilock, and we’ve never claimed to be. We’re a General Contractor who installs their product well, and repairs it when someone else installed it poorly.
Styles & brands we work with







Common Unilock Construction Problems We Solve in Seven Trees
- Settling and joint sand loss on driveways. This is the big one. We see it on driveways where base compaction was skipped or under-done, which happens on narrow Seven Trees lots where a skid steer can’t get back to where it needs to go and someone decides to set units over loose base and hope. It never holds. The driveway sinks in ruts, joint sand washes out, and the whole surface looks tired within two seasons.
- Efflorescence and salt bloom. Unilock Brussels Block and Cambridge Cobble are beautiful stones, but they show efflorescence after the wet-winter/dry-summer swing we get here. North-facing patios stay damp longer, and the white salt bloom shows on the surface. It’s cosmetic in most cases, but it’s also a sign that moisture is moving through the units, and we know how to clean it and how to adjust drainage so it doesn’t come right back.
- Edge creep on south-facing driveways. When edge restraint is loose or missing, the soldier course slowly walks outward. Hot-summer thermal cycling does it – the pavers expand, push against a weak edge, and the whole border drifts over time. We see it on south-facing pavement in Seven Trees every summer.
- Weed infiltration in joints. Older unincorporated-pocket properties here sometimes have odd grade issues or poor drainage, and when poly sand is underfilled, weeds find their way between units. It’s not just ugly; roots lift stones and water gets underneath, and then you have real instability.
- Drainage failure beneath pavers. Older homes off Monterey Road with long driveways sometimes pour water toward the house instead of away from it. If the base wasn’t graded right, water pools under the pavers and the whole field moves. We’ve rebuilt Unilock driveways where the original install had zero thought given to drainage.
Unilock Service in Seven Trees: What Local Conditions Mean for Your Work
Seven Trees is one of San Jose’s last unincorporated-feeling pockets. Jobs here sometimes fall under Santa Clara County, sometimes under the City of San Jose, and you don’t always know which until you check. That matters for paver work because it affects exactly when you can start. If a homeowner wants a Unilock driveway torn out and rebuilt, and we’re sitting on a County-vs-City discrepancy, that’s a delay that has nothing to do with pavers. So we verify the authority having jurisdiction before we schedule base prep or order Unilock units. We learned this the practical way, and we now do it on every project here.
It also means this neighborhood’s construction is infill work: remodels, room additions, ADU builds on tight lots where the house itself was built in the 1950s or ’60s. The driveways are old. Many are cracked concrete. When we replace one with Unilock pavers, we’re usually working around an existing house, not an open subdivision, which means we stage by hand on the narrowest lots and plan our access before we cut anything.
Unilock Models & Products We Service in Seven Trees
We work with the full range of Unilock paving-stone and retaining-wall systems. Unilock Brussels Block is the tumbled paving stone we set most often on driveways and patios in Seven Trees, because it suits the ranch houses here and matches what we deliver for Buena Vista Unilock service. Unilock Beacon Hill Flagstone gives a flagstone look with set dimensions, and we use it on patios where people want a natural-stone feel without the irregular joints. Unilock Cambridge Cobble is the workhorse for borders and accent bands, and their Pisa2 and Brussels Dimensional systems handle retaining walls.
On the repair side, we use Unilock’s own units and matching edge restraints, never whatever’s cheapest at the yard. We specify quality polymeric joint sand and compactable aggregate base. If an existing installation is sound, re-sanding and re-leveling is far cheaper than replacing. If the base is failed, we say so and recommend a rebuild with corrected sub-base. We explain the difference before we quote anything. For broader Unilock work beyond Seven Trees, see our Unilock sales & service page.
See the difference
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AfterUnilock Service Pricing in Seven Trees
| Service | Price Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Driveway Replacement | $5,000 – $14,000 |
These ranges come from real projects in the San Bernardino market and reflect what Seven Trees homeowners should expect. Cost depends on square footage, how bad the existing base is, site access, and which Unilock line you choose. A patio with Cambridge Cobble accents costs different than a straight Brussels Block driveway. We give a written, line-item estimate before any work starts. Call (855) 473-5620 to set one up.
Serving Seven Trees, CA — Our Local Coverage Area
We’re based in the Seven Trees 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 Seven Trees
No. We are an independent general contractor that installs and repairs Unilock products. We are not affiliated with, endorsed by, or authorized by Unilock as a dealer or manufacturer’s rep. We have built enough Unilock driveways, patios, and walls in Seven Trees to know the product lines and their failure modes, and our credibility comes from that hands-on work, not from a manufacturer relationship.
Yes. Where we’re setting new units, we use Unilock’s own product lines. Where we’re repairing an existing installation, we match to the original Unilock line and use matching edge restraints and specified polymeric joint sand and aggregate base. We don’t substitute generic units that don’t match the existing color or profile.
A standard driveway rebuild takes about a week when the weather allows, though small-lot access on narrow Seven Trees streets can add a day or two of hand staging. A patio typically runs three to five days. The permitting check is the variable: if a job falls under Santa Clara County and the City of San Jose says something different, that’s sorted before we break ground, and we won’t schedule the crew until it’s clear.
We work with Brussels Block, Beacon Hill Flagstone, Cambridge Cobble, and the Pisa2 and Brussels Dimensional retaining wall systems. If you have an existing Unilock line we haven’t named, call us anyway; we can usually match it or tell you honestly whether repair makes sense or replacement is better. Serving all of Seven Trees and surrounding areas is what we do. See our Seven Trees service area page for coverage details.
For smaller repairs like re-sanding and re-leveling a section of patio, you’re usually looking at a fraction of the full-install price: often in the hundreds for modest work, but it depends on square footage and whether the base has failed. If the base needs rebuilding, cost rises toward the Paver Patio Installation range of $3,500 – $11,000 or Paver Driveway Installation range of $7,000 – $18,000. Call (855) 473-5620 for an exact quote. Estimates are free.
Service Areas Near Seven Trees
We serve Seven Trees and the surrounding South Bay communities. If you’re in Fontana, Bloomington, Rialto, Sunnyslope, Glen Avon, or Muscoy, we can usually get a crew to you. For Unilock work in the nearby hills, see our Unilock service in Lexington Hills page. For work on the west side of the valley, see Unilock service in Communications Hill.
Book Your Unilock Service in Seven Trees Today
If your paver driveway has settled, the edge is creeping, or you’re ready to replace that cracked concrete with Unilock Brussels Block, call us. We’ll walk the site, verify the jurisdiction, and give you a written estimate. Call (855) 473-5620 to schedule your free estimate. If it’s not built right the first time, you’re just paying for it twice.
Written by Ruben Castillo, Owner at San Bernardino Contractors, serving Seven Trees and the South Bay.