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Unilock Construction in Redwood City, CA | San Mateo Construction
If you’re searching for Unilock construction service in Redwood City, here’s what you need to know: we’re an independent Redwood City General Contractor that installs and repairs Unilock pavers, driveways, patios, and retaining walls across all four Redwood City ZIP codes, and the single biggest factor in whether your Unilock work lasts is what’s underneath it. That’s especially true here, where the older flatland neighborhoods and the bayfill lots in Redwood Shores demand two completely different base preparations. Call our team at (855) 901-7266 for a free estimate, and we’ll walk you through exactly what your property needs before a single paver gets set.
Why Redwood City Residents Choose Us for Unilock Service
Most paver contractors can lay Unilock block. What fewer of them understand is how Redwood City’s ground behaves under it. Our involvement with Unilock sales & service spans projects on raised foundations in the downtown core, engineered slabs at Redwood Shores, and hillside lots in 94062 where retaining walls are doing real structural work. Noel Carrington, our owner, spent decades working residential and light commercial jobs across San Mateo County before founding San Mateo Construction, and he’s particular about base preparation because he’s seen what happens when it’s skipped. We use genuine Unilock units for color and dimensional match on repairs, and we stock quality aggregate, geotextile, and polymeric sand locally so Redwood City jobs don’t stall waiting on materials. You get one contractor who understands both the product and the ground it sits on.
Styles & brands we work with
Common Unilock Construction Problems We Solve in Redwood City
Here are the failure patterns we see most often in Redwood City, and what’s usually driving them:
- Efflorescence and salt staining on Brussels Block and Beacon Hill surfaces. Redwood City’s wet winters pull mineral salts up through the pavers, and where the subbase sits over poorly draining clay or bayfill, the white bloom keeps coming back. Cleaning alone doesn’t fix it – drainage underneath has to change too.
- Polymeric sand joint loss and paver edge settlement in Redwood Shores (94065). Imported fill moves seasonally. When it does, joints open up and edges drop. We see this constantly on driveways where the base wasn’t engineered for fill conditions.
- Rutting and lippage on driveways in the flat downtown core (94061 and 94063). The alluvial soils there are soft, and if the aggregate base was under-compacted, the pavers shift under vehicle load. The paver isn’t the problem – the base is.
- Bulging or leaning Pisa2 retaining walls on hillside lots (94062 and 94064). When drainage behind the wall was never tied to a proper footing or weep system, water pressure pushes the block out over time. Hillside walls need a different construction approach than flatland garden walls.
- Driveway apron settlement where the slab meets the paver field. This junction is where differential movement shows up first, and it’s especially common on Redwood Shores fill lots where the garage slab and the paver base are moving at different rates.
Unilock Service in Redwood City: What Local Conditions Mean for Your Hardscape
Redwood Shores (94065) is built on imported bayfill over a high water table, and that changes how paver driveways and patios need to be built. A simple compacted-soil base that works fine a few miles away in the raised-foundation flatlands of 94061 will fail in Redwood Shores because the fill moves and the water table won’t let moisture drain naturally downward. On a Redwood Shores lot sitting on imported fill, we saw a customer’s Brussels Block driveway settle at the garage apron every rainy season while the polymeric joints washed out. We pulled the affected field, corrected the base with geotextile and properly compacted aggregate tied to drainage, reset the pavers, and re-sanded with polymeric joint sand. The apron has stayed flat through two wet winters since. That’s the difference between knowing Unilock products and knowing Redwood City ground.
Across town in the older sections of 94063 near downtown, the situation flips. Those 1920s to 1950s homes sit on soft alluvial soil, and the typical failure is a driveway that was under-compacted at the time of installation. We lift and re-lay those with a proper aggregate base rather than replacing the pavers, which saves homeowners thousands.
Unilock Models & Products We Service in Redwood City
We install and repair the Unilock lines most common in Redwood City: Brussels Block for driveways and walkways, Beacon Hill for flagstone-style patios, Pisa2 for retaining walls, and Umbriano for smooth driveways and pool decks. When a repair requires matching existing pavers, we source genuine Unilock units for color and dimensional consistency. Aftermarket substitutes never match after a few years of sun and weather. For base work, we use quality aggregate and geotextile rather than whatever’s cheapest, because the base is usually what failed in the first place. We’ll also tell you plainly when lifting and re-laying existing pavers beats a full replacement, and when a soft subbase means replacement is the only durable fix.
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AfterUnilock Service Pricing in Redwood City
What you’ll pay depends on the size of the job, the condition of your existing base, and whether we’re repairing or starting fresh. Here are the ranges for the Unilock work we do most in Redwood City:
| 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 |
Base correction work, drainage improvements, and tear-out of failing subbase are the biggest cost variables in Redwood City, and we’ll line-item them in your estimate so there are no surprises. Every estimate is free, and we’ll walk the property with you before you commit to anything. Call (855) 901-7266 to schedule yours.
Serving Redwood City, CA — Our Local Coverage Area
We’re based in the Redwood City area and also provide Woodside Unilock service and nearby communities. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Unilock Construction in Redwood City
Yes. Redwood Shores sits on imported bayfill with a high water table, so paver driveways and patios there almost always need an engineered, drained aggregate base with geotextile separation. On the flatlands of 94061 and 94063, a properly compacted aggregate base over native alluvial soil is typically sufficient, but the fill in 94065 moves and holds water differently. We evaluate base conditions on every job before quoting, and the base spec is specific to your lot. Call (855) 901-7266 for a free site assessment.
Efflorescence is mineral salt being pulled up through the pavers by moisture, and Redwood City’s wet winters followed by dry summers make it worse. If your driveway sits over clay or bayfill that doesn’t drain, the bloom will return every season until the drainage path below the pavers is corrected. We can clean the surface and, more importantly, fix the subbase drainage so it stops recurring. Call (855) 901-7266 and we’ll take a look.
In most cases, yes. We source genuine Unilock units in the matching color and dimension, and we’ll tell you honestly whether lifting and re-laying your existing pavers over a corrected base is the smarter move. If your pavers are structurally sound, repair beats replacement on cost. If the subbase has failed across the whole field, replacement is the only durable fix, and we’ll show you why. Call (855) 901-7266 for an exact quote.
Yes. Retaining walls on slopes in 94062 and 94064 are doing real structural work, and they need a proper footing plus a weep system and drainage aggregate behind the wall. Without that, water pressure builds up behind a Pisa2 wall and eventually pushes the block out. We tie drainage into the wall build from day one, because rebuilding a bulged hillside wall costs far more than doing it right the first time. Call (855) 901-7266 to discuss your wall.
It can be, but not without attention to the base. Those older neighborhoods sit on soft alluvial soil, and the original driveways were often built without adequate compaction. A paver driveway over a properly compacted aggregate base with edge restraint works well there, but you don’t want a contractor who skips the base work to keep the quote low. We’ll spec the base for your lot’s soil and usage. Call (855) 901-7266 for a free estimate.
Service Areas Near Redwood City
We serve Redwood City and the surrounding Peninsula communities, including Redwood City service area coverage across ZIP codes 94065, 94061, 94062, and 94063. We also work in San Mateo, Burlingame, Foster City, Hillsborough, Belmont, and Highlands-Baywood Park. If your project sits near Redwood Shores, we’re familiar with the fill conditions there. For hardscape work just up the hill, see our Unilock service in Emerald Lake Hills page. And for jobs north of the city line, we cover Unilock service in South San Francisco as well.
Book Your Unilock Service in Redwood City Today
If your Unilock driveway is settling, your patio joints are washing out, or you’re planning new paver work in Redwood City or need Unilock service in San Carlos, call (855) 901-7266. We’ll schedule a free estimate, assess your base conditions, and give you a written line-item quote. Tell me what you actually need, and we’ll figure out the right way to build it.
Written by Noel Carrington, Owner at San Mateo Construction, serving Redwood City, Unilock in West Menlo Park, and San Mateo County.