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Unilock Construction in Sunnyvale, CA | Brookside Contractors
Brookside Contractors provides independent Unilock paver, patio, driveway, and retaining wall installation across Sunnyvale, from the 94085 industrial edges to the rancher tracts of 94087. What sets our Unilock work apart here is simple: we build bases for expansive clay soil, not for a catalog photo. Call (833) 725-3508 for a free estimate on any Unilock project. We’re a licensed Sunnyvale General Contractor serving every Sunnyvale ZIP code with one crew, one point of contact, and no manufacturer lock-in.

Why Sunnyvale Residents Choose Us for Unilock Service
We install Unilock pavers and retaining walls across Sunnyvale’s postwar rancher tracts and infill lots every season, so we know how Brussels Block, Pinter, and Beacon Hill systems perform against clay soil movement, winter rain, and root-heavy mature landscaping. Nate Burrell, our owner and general contractor, trained in construction technology at Gavilan College and spent the better part of two decades on job sites throughout South Santa Clara County before we started taking Unilock work in Sunnyvale. That background matters when a 60-year-old property line meets a new paver patio. We’re an independent installer, which means we handle Unilock as a spec-driven system: base, edge restraint, and drainage built to the site, not a one-size-fits-all package. See our broader Unilock sales & service page for the full scope of how we work with the product line.
Styles & brands we work with







Common Unilock Construction Problems We Solve in Sunnyvale
Sunnyvale’s mild Mediterranean climate sounds forgiving, but the combination of winter rain, long dry summers, and expansive clay under much of the housing stock creates specific failure patterns. Here’s what we regularly fix:
- Efflorescence and hazing on Brussels Block and Pinter after wet winters. Where base drainage was never cut into the clay, moisture wicks up through the pavers and leaves white mineral deposits on the surface. It’s cosmetic but persistent, and it usually points to a drainage problem underneath.
- Paver settlement and lippage at driveway aprons and patio edges. Thin compacted bases shift as Sunnyvale’s clay swells and shrinks between seasons. You’ll see pavers tip at the edges or step out of plane where the aggregate was never deep enough.
- Paver creep on sloped lots. When installers skip a concrete edge restraint and rely on polymeric sand to hold the border, Sunnyvale’s heavier clay movement slowly pushes the outer courses outward. The sand was never designed to do that job.
- U-Cara retaining wall bulging or leaning. On sloped backyards, walls built without geogrid reinforcement and drainage gravel behind them start to lean within a few seasons. The wall units are fine; the engineering behind them wasn’t.
- Misaligned transitions at additions. In postwar Sunnyvale lots where later additions wrapped around the original house, we routinely find paver work that never accounted for changed drainage patterns. Water ends up pooling against foundations because the grade was left exactly wrong.
Unilock Service in Sunnyvale: What Local Conditions Mean for Your Equipment
Much of Sunnyvale’s postwar rancher housing sits on expansive clay that swells and shrinks between the long dry summers and wet winters, so Unilock driveway and patio bases here need deeper aggregate and positive drainage that Unilock in Mountain View on flatter, sandier lots wouldn’t demand. We see this play out constantly in the 94086 ZIP, where 1950s ranchers off Mathilda Avenue sit on clay that moves enough to crack concrete and shift pavers seasonally. On a Brussels Block driveway off one of those ranchers, our crew found the original pour had cracked and the pavers laid over it were lipping at the apron from clay movement. We pulled the units, cut out the failed base, rebuilt with compacted aggregate and a concrete edge restraint, then re-set the Brussels Block with fresh polymeric sand. The driveway now drains away from the garage instead of toward it. That’s what we mean when we say the paver is rarely the failing part; the base under it is.
Unilock Models & Products We Service in Sunnyvale
We work with the Unilock lines most common in Sunnyvale’s housing stock. Brussels Block shows up on driveways and walkway retrofits throughout the rancher tracts. Pinter’s linear modern profile fits the Eichler-adjacent contemporary patios popping up on infill lots. Beacon Hill flagstone-look pavers cover patios and pool decks. U-Cara segmental retaining walls handle the sloped backyards. On parts, we source genuine Unilock pavers, edge restraint, and U-Cara components to keep color and module matches consistent. For polymeric sand and drainage aggregate, we use quality aftermarket products where they outperform OEM. No forced specs, just what the project actually needs. Our Sunnyvale service area page covers the full ZIP code map and what we handle across the city.
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AfterUnilock Service Pricing in Sunnyvale
Unilock work in Sunnyvale is priced by base prep, site access, and the linear feet of edge restraint, not just square footage. If a wall or driveway has settled from a bad base, we rebuild the base rather than patch the surface. Here are the ranges we quote for the most common projects:
| Project | Price Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Home Addition | $45,000 – $130,000 |
Every estimate is free, written, and line-itemed. We walk the site, check the grade and drainage, and give you a number that won’t change once work starts. Call (833) 725-3508 to schedule yours.
Serving Sunnyvale, CA — Our Local Coverage Area
We’re based in the Sunnyvale 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 Sunnyvale
Will my Unilock Brussels Block driveway turn white with efflorescence after Sunnyvale’s rainy season?
It can, especially if the base was never drained properly into the clay below. Efflorescence is mineral deposits wicking up through the paver, and it’s a sign of moisture trapped underneath. We address the drainage, and the hazing usually stops recurring. Call (833) 725-3508 and we’ll tell you if it’s cosmetic or structural.
How deep does the base need to be for Unilock pavers on Sunnyvale’s clay soil?
Deeper than the standard 4-inch aggregate base you’d see on a sandier lot elsewhere in the Bay Area. Sunnyvale’s expansive clay demands 6 to 8 inches of compacted aggregate, a geotextile separator, and positive drainage away from the home. We spec to the soil, not to a brochure.
Can you match pavers to a 1960s rancher that already has a Unilock patio?
Usually, yes. If the original pavers are a current production line like Brussels Block or Beacon Hill, we can source matching units. Color and module consistency are why we insist on genuine Unilock pavers for repairs rather than close-enough lookalikes. Call (833) 725-3508 with a photo and we’ll tell you what’s matchable.
Do you build Unilock U-Cara retaining walls on Sunnyvale’s sloped backyards?
We do. U-Cara is a solid wall system, but on Sunnyvale’s clay slopes it needs geogrid reinforcement and drainage gravel behind it. Skip either one and the wall starts to lean within a few wet seasons. We build them to hold.
What’s the difference between repairing and replacing a settled Unilock driveway?
A repair means pulling pavers, fixing the base, and re-setting the same units. A replacement means new pavers, new base, new everything. Most settled Sunnyvale driveways are repairable because the Unilock units themselves are fine; the base failed. The cost difference is often thousands, and we’ll tell you straight which one you actually need. Call (833) 725-3508 for an honest read on yours.
Service Areas Near Sunnyvale
Beyond Sunnyvale, we take Unilock and hardscaping work in Unilock service in Bonny Doon, Unilock service in Loyola, plus Morgan Hill, San Martin, Gilroy, Corralitos, Interlaken, and Day Valley. If you’re on the Sunnyvale border and unsure who covers your street, call and ask.
Book Your Unilock Service in Sunnyvale Today
If you’ve got a settled driveway, a leaning U-Cara wall, or a patio that drains the wrong way, don’t wait for the next rain to prove the point. Call (833) 725-3508 and we’ll put a free estimate on the calendar. We’ll walk the site, show you what the base is actually doing, and price the fix line by line.
Written by Nate Burrell, Owner & General Contractor at Brookside Contractors, serving Sunnyvale and Unilock in Santa Clara.