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Unilock Construction in Redwood Shores, CA | San Mateo Construction
We provide independent Unilock paver and retaining wall installation and repair across Redwood Shores, CA, and as a Redwood Shores General Contractor we understand the local conditions. The short version: if you need Unilock Brussels Block, Beacon Hill, or Tremron pavers laid, re-leveled, or re-sanded on ground that used to be bay water, we’re the contractor who’s done it here. Redwood Shores is built on engineered fill behind flood-control levees, and that single fact changes how a paver job gets designed, permitted, and built. Call (855) 901-7266 for a free estimate on any Unilock paver driveway, patio, or retaining wall in Redwood Shores.
Why Redwood Shores Residents Choose Us for Unilock Service
We’ve been laying Unilock pavers and building their retaining systems on the Peninsula long enough to know how the material behaves on bayfront ground. It’s not the same as inland. Noel Carrington, our owner, grew up a few blocks from Coyote Point in San Mateo and spent his weekends as a kid helping his father pour concrete footings in the family’s backyard. That’s where he got hooked on the trade, and three decades later he still runs a job site the same way: understand the ground first, then pick the product. As an independent contractor, we don’t answer to Unilock’s sales department. We answer to the site. We use Unilock sales & service knowledge to match the right profile and base design to what your yard actually needs. And we serve all of Redwood Shores service area, from the lagoon-front loops down to the townhome courts off Marine Parkway.
Here’s what that means for you: we don’t upsell you on a premium paver line when a value Tremron unit does the job better for bay-humidity ground. We don’t cut the base depth to save a few dollars on fill that we know will settle. And we don’t walk away from a job until the drainage runs the right direction. Tell me what you actually need, and we’ll figure out the right way to build it.
Styles & brands we work with







Common Unilock Construction Problems We Solve in Redwood Shores
Redwood Shores has a specific set of conditions that show up as predictable paver problems. Here’s what we see most often:
- Joint sand washout and shifting units on older paver drives. The fill under Redwood Shores compacts unevenly, especially near the lagoons. Fine polymeric joint sand gets pumped out after winter rains, paver edges loosen, and weeds push through. We re-compact the base, re-level the field, and re-sand with a polymeric product that holds up better against runoff.
- White salt staining on paver faces. Marine fog and bay air keep Unilock’s dense concrete moist. Salts wick up through the units and bloom as efflorescence. It doesn’t rinse off with a hose. We clean it properly and often adjust the drainage so the pavers aren’t sitting in a damp environment that keeps pulling salts up.
- Driveway ruts and edge heave from high groundwater. Redwood Shores sits on fill with a water table that rises in winter. Saturated aggregate under a driveway pushes the base, and pavers rock or step at the edges. The fix starts with re-cutting the base elevation and getting drainage to flow away from the paver field.
- Rust bleed from failing edge restraints. Salt-laden moisture attacks plain steel edging and cheap retaining-wall anchors on lagoonside properties. You’ll see orange staining bleeding onto the paver face, plus courses that have loosened. We replace the edging with corrosion-resistant material and re-secure the wall.
- Settled paver bowls that hold water at the garage threshold. Lagoonside drives near Shorebird Circle and similar streets settle into shallow bowls because the fill wasn’t compacted in lifts when the house was built. Water sits, algae grows, and the pavers look lousy year-round. We pull the field, re-compact the base, and reset the slope so runoff moves away from the house.
Unilock Service in Redwood Shores: What Local Conditions Mean for Your Equipment
Redwood Shores is different from every other city we work in, and it comes down to one thing: the land under your pavers didn’t exist forty years ago. The whole community is built on engineered bay fill behind BCDC-regulated levees in a FEMA flood zone. That means your paver driveway or patio is not just a finish surface. Its base depth, finished elevation, and drainage design have to be worked out against flood-zone elevation requirements and fill-settlement patterns that inland Peninsula cities like San Carlos or Unilock in Belmont never have to consider. We’ve seen this on Shorebird Circle, where a lagoonside driveway of Unilock Brussels Block pavers had settled into a shallow bowl after several winters. The joints were pumping sand every time it rained. Our crew pulled the field and found the aggregate base sitting over uncompacted fill. We re-excavated, re-compacted in lifts, reset the units to a positive slope away from the garage, and re-sanded with polymeric joint sand. The drive now sheds runoff instead of holding it. That’s the kind of repair you only get from a contractor who understands the ground, not just the product.
Unilock Models & Products We Service in Redwood Shores
We work with the full Unilock profile range that suits Redwood Shores conditions. That includes Brussels Block for a classic, textured paver that hides wear on drives and patios. Beacon Hill for a flagstone look with tighter joints that resist weed lines. Tremron, Unilock’s value line, when you want a durable surface without the premium price and the site doesn’t demand a high-end profile. And the Pisa2 retaining wall system for sloped lots near the lagoons where a level patio or planting bed needs a wall that won’t lean. On repairs, we use Unilock’s own matching units, caps, and edge restraints so a patch blends with the existing field. For the base and joint material, we select quality aftermarket aggregate and polymeric sand, because that’s where many failures actually start. If a paver field is settled but the units are intact, we lift, re-base, and relay. Full replacement only happens when the pavers themselves are spalling or the base failure is too widespread to justify a patch.
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AfterUnilock Service Pricing in Redwood Shores
Pricing depends on what’s already under the pavers. A new installation on fresh ground costs more than a repair on a field we can re-use. Here are the ranges we quote most often in Redwood Shores:
| 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 drives the cost in Redwood Shores is fill compaction and drainage. If we have to re-excavate to flood-zone elevation or re-compact uncompacted fill, the base work takes longer and costs more than a simple relay on solid ground. A free estimate includes a site inspection of your existing base and drainage. Call (855) 901-7266 and we’ll give you a written line-item quote, no change orders after the fact.
Serving Redwood Shores, CA — Our Local Coverage Area
We’re based in the Redwood Shores 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 Redwood Shores
Because the ground under your pavers is young, engineered fill that compacts unevenly over time, especially near the lagoons. Water moves through the fill during winter rains, pumps out the fine joint sand, and leaves the units loose. The fix is re-compacting the base and using a polymeric sand that holds up better against runoff. If you’re seeing this every year, call (855) 901-7266 and we’ll inspect what’s under the pavers. The estimate is free.
Yes. Redwood Shores is in a FEMA flood zone, and paver work that changes finished elevation or base depth can require review against flood-zone requirements and BCDC fill restrictions. We handle the permit package ourselves, which is a big reason to have one contractor responsible for the whole job. Call (855) 901-7266 if you want to know whether your project triggers review. We’ll tell you straight.
For salt-air exposure near the bay, we prefer Unilock pavers with denser faces and tighter joint profiles. Beacon Hill works well because the close-fit joints resist weed lines and salt wicking. Brussels Block is fine too if the base drainage is right and the joints are filled properly. Tremron is a solid option when the patio is small and you want to keep the budget down. We’ll make a specific recommendation after walking your yard.
Yes, usually. We use Unilock’s own matching units, caps, and edge restraints so new sections blend with the existing field. The tricky part on Redwood Shores fill is that the base under the old section may be compromised even if the units look fine. We’ll tell you after we pull a few units and check. If the pavers are sound, we re-base and relay them. Full replacement only when the material itself is shot.
We do. Pisa2 is our usual Unilock wall system for those lots because the engineering is straightforward and the wall handles stepped slopes well. The challenge on lagoonside properties is the base: saturated fill means the wall footing has to be deeper and better drained than an inland build. We design for that from the start. Call (855) 901-7266 for a free estimate on a retaining wall or any paver work in Redwood Shores.
Service Areas Near Redwood Shores
In addition to Redwood Shores, we serve Foster City, Belmont, San Mateo, and the Hillsborough edges along Highway 92. If you’re on the Peninsula and need independent Unilock service, check our Unilock service in San Carlos page or the Unilock service in San Bruno page for details on those areas.
Book Your Unilock Service in Redwood Shores Today
If your Redwood Shores paver driveway is settling, staining, or losing sand, call (855) 901-7266 now. We’ll schedule a free site inspection, check your base and drainage, and give you a written estimate. Same-day visits are often available for active drainage or safety problems.
Written by Noel Carrington, Owner at San Mateo Construction, serving Redwood Shores and Unilock in San Mateo since our first lagoonside paver project in the early 2000s.