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Unilock Construction in San Martin, CA | Milpitas Construction
We install and repair Unilock pavers and retaining walls across San Martin, CA as an independent contractor, not a manufacturer dealer. The short version: if you’ve got a Unilock driveway, patio, or wall on a San Martin parcel, we handle the full scope of it, from base-prep through final compaction and joint sand, including the Santa Clara County permitting path that comes with unincorporated territory. We carry a deep working knowledge of Unilock’s product systems and how they behave on south-county clay. Call (877) 752-4194 for a free estimate and we’ll tell you honestly what your project needs.
Why San Martin Residents Choose Us for Unilock Service
Ken Stafford, our owner, grew up near the Milpitas BART station back when that corridor was mostly warehouse lots and family-owned shops, and he built his trade at Evergreen Valley College in San Jose before spending more than two decades on residential and ag-adjacent builds across the Bay Area. That means something specific on a Unilock job: we’ve pulled apart enough failed paver systems to know the failure is almost never the paver itself. It’s the base, the edge restraint, or the drainage behind a wall. San Martin’s clay soil and hot inland summers test every one of those components harder than most of the county, and we spec for that. We use genuine Unilock units, matching edge restraints, and the right joint sand for the application, which keeps color and dimension consistent if you’re extending an existing run. We’re not authorized by Unilock, and we won’t pretend to be. What we offer is direct field experience with this brand on San Martin soil.
Styles & brands we work with







Common Unilock Construction Problems We Solve in San Martin
- Efflorescence bloom on Brussels Block and Beacon Hill Flagstone: San Martin’s summer dry season pushes daytime temps well above the Bay’s coastal cities, and rapid evaporation pulls mineral salts to the paver surface, leaving that chalky white film. It’s cosmetic in most cases, but it’s also a sign your base or bedding layer is holding more moisture than it should. We diagnose the source, not just the symptom.
- Edge migration and joint sand washout on driveways: When a paver driveway gets built over expansive south-county clay with a base compacted short of spec, the first wet winter opens the joints right up. Pavers shift toward the planting strip, sand washes into the soil, and the whole system starts creeping. We see this constantly on ranch-style San Martin properties where the original drive was laid years ago with substandard subgrade work.
- Thornbury wall settlement and overturning: Retaining walls on sloped San Martin lots fail when they’re stacked without proper geogrid reinforcement or a drainage column. A wall that looked fine in October can be visibly pitching by March. Replacing the face units won’t fix that. The repair lives in the subgrade, the drainage, and sometimes the wall’s structural design.
- Eco-Priora permeable system clogging: San Martin sits in agricultural territory. Orchard silt, fine dust, and loose topsoil drift onto paver aprons at shops, barns, and winery outbuildings, and permeable pavers that are supposed to infiltrate rainwater instead clog and pond. These systems work beautifully when they’re maintained for the local soil environment. Most of the ones we find in San Martin haven’t been.
- Driveway replacement on former orchard parcels: A lot of San Martin properties were orchard land before they were homes, which means the underlying soil has been tilled, irrigated, and chemically amended for decades. That legacy shows up as uneven base settlement under paver driveways. We replace the full system when the base has failed, not just the top layer.
Unilock Service in San Martin: What Local Conditions Mean for Your Equipment
San Martin has no city hall, and that changes the entire front end of a Unilock driveway or patio project. You’re not pulling permits at a counter in Morgan Hill or Gilroy. You’re dealing with Santa Clara County’s building department, and if your parcel has ag or shop frontage on former orchard land, the county may also trigger a land-use review before you can legally excavate. We’ve walked enough San Martin owners through that process to know the sequence cold: county permit first, land-use review where it applies, then base work. On top of that, the soil here is not the sandy loam you find closer to the coast. It’s clay with high shrink-swell potential, and when it dries out hard during the inland summer and then takes water in the wet season, poor base prep turns a Unilock driveway into a shifting mess within a couple of years. The same brand of paver installed identically in a coastal ZIP will often outperform the same install in San Martin simply because of what’s happening underneath it. We build the base for this soil, not the soil in somebody else’s service area.
Unilock Models & Products We Service in San Martin
We install and repair the Unilock product lines most common on San Martin residential and ag properties: Brussels Block in its tumbled finish for driveways and high-traffic aprons, Beacon Hill Flagstone for patios and walkways where a more irregular stone face is wanted, Thornbury wall block for low retaining walls and planter borders, and Eco-Priora permeable systems where stormwater infiltration matters. When it comes to parts, we use genuine Unilock sales & service materials, including matching joint sand, edge restraints, and polymeric products, so an extension or repair reads as one continuous surface rather than a patchwork. On repair calls we stock the common profile and color ranges locally for faster San Martin turnaround, and special-order colors seldom take more than a few days.
See the difference
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AfterUnilock Service Pricing in San Martin
Pricing on Unilock work in San Martin follows the scope of the excavation and base prep more than the paver itself. Here’s what these projects typically run across the 95046 ZIP:
| Service | Typical Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Driveway Replacement | $5,000 – $14,000 |
| Driveway Sealing | $250 – $700 |
What moves the number: how much failed base has to come out, whether the county requires a land-use review before excavation starts, and how far material has to travel to your parcel. Our free estimate includes a written line-item quote with fixed pricing, no change orders hidden in the fine print. Call (877) 752-4194 to schedule yours.
Serving San Martin, CA — Our Local Coverage Area
We’re based in the San Martin area and know this community well, and we also provide Unilock service in Amesti. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Unilock Construction in San Martin
Yes. San Martin sits in unincorporated Santa Clara County, so a paver driveway or patio goes through the county’s building department rather than a municipal counter. Work on ag or shop frontage on former orchard land can also trigger a county land-use review before excavation starts, and we handle that paperwork as part of the job. Call (877) 752-4194 and we’ll tell you exactly which path applies to your parcel before you spend a dollar.
That’s efflorescence. San Martin’s high inland valley heat accelerates evaporation during the dry season, and mineral salts in the bedding layer or base get pulled up through the paver face. It’s usually cosmetic, but recurring heavy bloom tells us there’s more moisture trapped under the units than there should be. We’ll assess the drainage and bedding during a service call. Call (877) 752-4194 for an exact diagnosis and quote.
Yes, and we do it regularly. Ag frontage on former orchard land in San Martin means we’re working with compacted, historically irrigated soil, so base preparation matters even more than it does on a residential drive. We can also determine whether the county wants a land-use review on the apron before any excavation starts. Call (877) 752-4194 and we’ll map the whole sequence for your property.
It depends on the failure. A Thornbury wall that’s pitching because water built up behind it without a drainage column can often be salvaged by rebuilding the affected section with proper geogrid, drainage, and compaction. A wall built on expanding San Martin clay with no structural reinforcement at all usually has to come down and be rebuilt correctly. We’ll tell you which one you’re looking at. Call (877) 752-4194 for an honest assessment.
San Martin sits on expansive clay that shrinks hard in the inland summer dry season and swells with winter moisture, which is a much more demanding subgrade than the sandy loam common closer to the coast. That means deeper excavation, more compaction lifts, and in many cases a thicker aggregate base than the same Unilock product would need in a coastal ZIP or in Unilock in Corralitos. We spec for this soil. Call (877) 752-4194 for an estimate built around your parcel’s actual conditions.
Service Areas Near San Martin
Our Unilock service from San Martin service area reaches the surrounding south-county communities and beyond, including Morgan Hill, Gilroy, San Juan Bautista, and the rural acres between. We also run Unilock work over in Unilock service in Millbrae and down the coast in Unilock service in Bonny Doon, so if your property sits near a county line, call and we’ll confirm coverage.
Book Your Unilock Service in San Martin Today
If you’re planning a Unilock driveway, patio, or wall in San Martin, call (877) 752-4194. Ken Stafford and our crew will walk your property, check the soil and drainage, and give you a free written estimate with the Santa Clara County permit path spelled out before we dig.
Written by Ken Stafford, Owner at Milpitas Construction, serving San Martin and the south Santa Clara Valley.