







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Unilock Construction in Sunnyvale, CA | Bradford Remodeling Co San Jose
As a General Contractor in Sunnyvale, we provide independent Unilock paver and retaining wall construction across the city, from full driveway teardowns to patio resets. The one thing that separates our Unilock work here is the base. Every job in Sunnyvale gets over-excavated and reinforced for the city’s expansive clay soil, because a standard 8-inch base fails fast when winter moisture hits Birdland’s shrink-swell ground.
Our crews have installed and repaired more than 200 Unilock surfaces across the South Bay. We carry genuine EnduraColor, Artline, Brussels Block, and Treo pavers, plus matching edge restraints, so color calibration stays dead-on. If you’re searching for Unilock sales & service from a crew that knows Sunnyvale dirt, call (669) 272-2637 for a written estimate before any work starts.
Why Sunnyvale Residents Choose Us for Unilock Service

Curtis Lane grew up on job sites in Los Angeles and trained in construction technology at LATTC, where he learned to read structural drawings and run work by the numbers. That discipline followed him to San Jose, where he built Bradford Remodeling on flat-rate pricing and written scope. For Unilock work in Sunnyvale, that means the base depth, geogrid spec, and paver count go in writing before we break ground.
We’re not authorized by Unilock, and we don’t pretend to be. We’re an independent contractor that installs and repairs their product because it holds up when the base is done right. Sunnyvale homeowners call us when another crew’s patio sinks after one winter or a driveway edge spalls off. We show up, pull the failed base, rebuild it to geotechnical spec, and reset the same pavers whenever they’re salvageable. Every technician is background-checked and uniformed, and a live person answers the phone 24/7. The 365-Day Done Right Promise covers the finished surface for a full year. If it moves, we come back and fix it at no charge.
Styles & brands we work with







Common Unilock Construction Problems We Solve in Sunnyvale
- Polymeric sand failure in paver joints. Sunnyvale’s shrink-swell clay pushes moisture up through the base during winter rains. That water wicks into the joints and breaks down cheap polymeric sand, so pavers start shifting within two seasons. We remove the failed sand, stabilize the base, and re-sand with a product rated for heavy clay conditions.
- Base erosion under driveways. Clay-heavy lots in Sunnyvale expand and contract with every rain cycle. An 8-inch sand base can’t handle that movement, so driveways settle unevenly and larger Unilock pavers crack at the edges. We over-excavate 18 to 24 inches and install geogrid before laying a single block.
- Efflorescence on dark EnduraColor pavers. Irrigation water in Sunnyvale’s dry summers wicks up through the base and leaves white mineral deposits on darker pavers like Mattoni and Town Hall. It’s not a structural failure, but it looks wrong. We treat the base drainage so water stops channeling upward, then clean the surface without damaging the color layer.
- Cracking Artline caps on retaining walls. Sunnyvale sits near fault-adjacent zones, and minor seismic events crack Artline wall caps more often than people expect. We reset the wall, replace cracked units with color-matched genuine Unilock stock, and re-compact the backfill so the next tremor doesn’t do the same thing.
- Edge spalling on driveways. When the base sinks, the perimeter pavers take the worst of it because they bear the weight of the edge restraint. In Sunnyvale, that spalling shows up within a few years on driveways with standard bases. We rebuild the edge with proper restraint and a compacted Class 2 sub-base.
Unilock Service in Sunnyvale: What Local Conditions Mean for Your Equipment

Here’s what a local builder can tell you that a generic paver crew won’t: in Sunnyvale’s Birdland neighborhood, original 1960s ranch homes sit on expansive clay that shifts with winter moisture. We routinely over-excavate 18 to 24 inches and install geogrid when laying Unilock pavers because standard 8 to 12-inch bases crack within two seasons here. This is not a problem that hits nearby Los Altos or Mountain View as severely. Those cities sit on different soil profiles. Sunnyvale’s clay is its own animal.
Our tech rebuilt a cracked Unilock Brussels Block driveway on San Simeon Drive in Birdland, where the original base was only 8 inches of sand over clay. We removed 500 pavers, added 12 inches of Class 2 base with geogrid, and reset the same blocks with new Edge Restraint. We finished with a compacted top layer that has held through two rainy winters. That’s the difference between guessing and knowing what Sunnyvale ground does when it gets wet.
If you’re in the Sunnyvale service area and your pavers are moving, you’re not imagining it. The soil is moving underneath them.
Unilock Models & Products We Service in Sunnyvale
We work on the full Unilock lineup common in Sunnyvale: EnduraColor in Mattoni and Town Hall finishes, Artline Westport and Ledgestone, Brussels Block, and Treo for large-format patios. For repairs, we source genuine Unilock pavers and matching edge restraints whenever possible. Color calibration matters. Aftermarket units rarely match after a few years of sun and irrigation water, so we don’t cut that corner. When the original pavers are still sound, we salvage and reset them over a rebuilt base instead of quoting a full replacement. That approach typically saves 30 to 50 percent versus tearing everything out.
See the difference
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After
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AfterUnilock Service Pricing in Sunnyvale
| Service | Price Range |
|---|---|
| Paver Patio Installation | $3,500 – $11,000 |
| Paver Driveway Installation | $7,000 – $18,000 |
| Concrete Driveway Installation | $4,500 – $12,000 |
What drives the cost in our Kitchen Remodeling in Sunnyvale and other projects is the base work. If your lot sits on the expansive clay common in Birdland and other 1960s tracts, the excavation and geogrid add real labor and material. If the soil is stable, the job lands lower in the range. A free estimate includes a written line-item price, so you know the number before any work starts. Call (669) 272-2637 to schedule one.
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
Sunnyvale’s clay expands when wet and shrinks when dry, which pushes and pulls the base from underneath. Sandy soils drain and stay relatively stable. The fix is a deeper base with geogrid, not a thicker layer of sand. Call (669) 272-2637 for an exact assessment of your lot.
Yes, in most cases. We source genuine Unilock EnduraColor pavers and match the color batch as closely as the manufacturer’s current run allows. If the original pavers are still solid, we often reset them over a rebuilt base and only replace the cracked units. The goal is a surface that doesn’t look patched.
No. On Sunnyvale’s expansive clay, six inches fails. We over-excavate to 18 to 24 inches and install geogrid on most jobs. That’s the minimum spec we’d put our name on here, and it’s why our work holds through multiple winters. Call (669) 272-2637 for a written plan on your property.
With a proper base on stable soil, an Unilock driveway should last 25 to 30 years before the surface needs significant work. On a teardown lot where the original home was scraped and the soil was disturbed, the base matters even more. Poor compaction or shallow excavation can cut that lifespan in half. We quote the base work as a separate line item so you see exactly what you’re paying for.
Yes. We reset failed walls, replace cracked Artline caps with color-matched genuine Unilock units, and re-compact the backfill so the next tremor doesn’t take the wall out again. If you’re seeing new cracks after a recent quake, call (669) 272-2637 for an inspection. Estimates are free.
Service Areas Near Sunnyvale
We work throughout Sunnyvale and the surrounding South Bay. If you’re in Unilock service in San Jose, Campbell, Fremont, or Saratoga, we’re close. We also cover Unilock service in Palo Alto, where the soil behaves differently and the base spec changes accordingly.
Book Your Unilock Service in Sunnyvale Today
Straight number, written scope, done when we said done. Call (669) 272-2637 to schedule your free Unilock estimate in Sunnyvale. A live person answers.
Written by Curtis Lane, Owner at Bradford Remodeling Co San Jose, serving Sunnyvale and the South Bay since 2004.











