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Unilock Construction in Redwood City, CA | Ashford Contractors
We install and repair Unilock paver patios, driveways, and retaining wall systems throughout Redwood City, from the flat downtown infill blocks to the steep hills of 94062. The thing that makes our Unilock work different here is that we read the site before we spec the stone: Redwood City splits into two engineering worlds along the 101/El Camino corridor, and a base course that holds fine on a west-side bungalow lot will heave in the clay slopes near Edgewood Park. We’re an independent contractor, not a Unilock dealer, so we cut and set product on its merits for each parcel. Call (877) 752-3868 to talk through your project.
Why Redwood City Residents Choose Us for Unilock Service
Glen Mossier grew up in Marlin Cove, trained in construction technology at Skyline College, and spent the last two decades rebuilding and re-engineering hardscape across San Mateo County. That background shows up in how we approach Unilock work in Redwood City: we install Brussels Block, Beacon Hill Flagstone, Estate Wall, and Copthorne systems the way a general contractor would, not a single-trade landscaper. Drainage, subgrade, foundation offsets, lot-line setbacks, WUI vegetation rules. Those details determine whether your paver field stays tight.
We work with genuine Unilock units, caps, and compatible polymeric joint sand, because mismatched aftermarket block is exactly where repairs fail fast. Color, dimension, and interlock stay consistent when we patch a field or add a wall course. That’s the whole reason to service Unilock instead of ripping it out for something generic. If the base is sound, we repair and relay. When the subgrade or wall engineering is the problem, we rebuild rather than patch over a failing foundation. Reach us at (877) 752-3868 to schedule a site read.
Styles & brands we work with
Common Unilock Construction Problems We Solve in Redwood City
- Heaved paver fields on hillside clay. In Emerald Hills and along the Edgewood Park slopes, saturated clay soil expands through a wet winter and shifts a shallow base, opening joints and pushing edges up. We dig out the failed base and rebuild it deeper with engineered drainage and compaction before resetting the same Unilock units.
- Efflorescence on Brussels Block and Beacon Hill. White mineral bloom forms when winter rain sits against a house wall or planter with no positive fall away from the foundation. We correct the grade, address the water source, and clean the surface so the color reads the way it should.
- Polymeric sand loss on downtown infill lots. The tight lot lines in 94061 and 94063 concentrate roof and hardscape runoff into one corner, washing sand from joints and letting pavers shift. We re-sand with a compatible product and fix the drainage pattern so the problem quits repeating every rainy season.
- Retaining wall creep on steep terraces. Estate Wall blocks bulge when the original installer under-built the geogrid or forgot that saturated clay wall load. We rebuild the wall with proper reinforcement and a drainage plane behind the face, then verify the setback and grade before locking it in.
- Driveway settlement at the street tie-in. Paver driveways on Redwood City’s west side often sag where the apron meets the street, because the subgrade there was never compacted to the same depth as the field. We cut and relay the affected zone with a transition detail that holds.
Unilock Service in Redwood City: What Local Conditions Mean for Your Equipment
The single biggest fact owners need to understand about Redwood City Unilock work is the Wildland-Urban Interface line. The 94062 hills, including Unilock service in Emerald Lake Hills and the Edgewood Park edges, sit inside the WUI, which means exterior work near the house can trigger Chapter 7A ignition-resistant material and defensible-space requirements that a flatland 94063 paver job never faces. That changes what we install. More importantly, the clay soils up there make pier depth and drainage the deciding factor in whether a retaining wall or paver field survives even one wet season. On an Emerald Hills slope off the Edgewood Park edge, our crew tore out a heaved Brussels Block patio where the original base had been laid too shallow over saturated clay, then rebuilt it with a deeper compacted base, a proper drainage plane, and a geogrid-reinforced Estate Wall terrace. We reset the same Brussels Block field on the corrected base with fresh polymeric sand, and the patio has held through two winters since.
Downtown and the west side are a different animal entirely. Lot-line-to-lot-line construction, minimal yard space, and concentrated drainage from roofs and stacked townhome neighboring walls. There, the thing that fails first is water routing, not soil movement. The same Unilock product needs a completely different base, depth, and edge detail on one side of El Camino than the other. That’s the information most paver installers either don’t know or won’t tell you.
Unilock Models & Products We Service in Redwood City
We install and repair the full hardscape catalog you’re likely to have: Brussels Block for drives and patios, Beacon Hill Flagstone for larger flagging and walkways, Estate Wall for terraced retaining walls, and Copthorne / Brussels Dimensional Stone for clean, linear work. On a repair, we match the existing unit size, color, and profile. Where the original product line or color has shifted, we source compatible current-production Unilock block rather than a no-name aftermarket unit. We keep the common dimensional and edge units on hand for faster Redwood City turnarounds, and we order from Unilock’s regional distribution for less common lines. As an independent contractor, our value is in knowing which block belongs on which base, not in waving a dealer badge.
See the difference
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AfterUnilock Service Pricing in Redwood City
Here’s what our clients in Redwood City typically pay for Unilock work. These are line-item ranges for planning, not quotes.
| Service | Typical Range in Redwood City |
|---|---|
| Paver Patio Installation | $3,500 – $11,000 |
| Paver Driveway Installation | $7,000 – $18,000 |
| Driveway Replacement | $5,000 – $14,000 |
| Driveway Sealing | $250 – $700 |
What drives the cost is always the site: soil type, slope, drainage, wall height, access for a machine, and whether we’re building on grade or cutting into a hill. A free estimate from us includes a site walk, a measured takeoff, and a written line-item quote with no change orders once we agree on scope. Call (877) 752-3868 to get yours.
Serving Redwood City, CA — Our Local Coverage Area
We’re based in the Redwood City area and know this community well, with Unilock service in San Carlos and nearby. 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, and it’s one of the jobs we do most in the 94062 hills. A steep lot means we read the grade before anything else, because a paver field on a 15% slope needs a deeper compacted base, a positive drainage plane, and often a geogrid-reinforced terrace wall below it to hold the load. We’ve rebuilt failed Brussels Block patios on Woodside Unilock service slopes and Emerald Hills grades where the original installer skipped exactly those steps. On a steep site, pier depth and drainage are the deciding factors, not the paver itself. Call (877) 752-3868 for a free site read and estimate.
Yes. The Wildland-Urban Interface rules in the 94062 hills mean exterior work near the house can trigger California Chapter 7A ignition-resistant material requirements plus defensible-space vegetation rules. Unilock concrete pavers themselves are already ignition-resistant, but the project’s placement and grading may shift depending on what’s nearby. We factor the WUI requirements into the scope before the first base course goes down. Call (877) 752-3868 to walk through what applies on your parcel.
Because water is sitting against the pavers and washing the polymeric sand out. In Redwood City’s winter wet season, roof runoff and planter overflow pour against house walls on the west-side flat lots, and in the hills, surface water moves through saturated clay. The fix is always water first: correct the fall, route runoff away, then reset the joints with compatible polymeric sand. We repair the drainage, not just the surface. Call (877) 752-3868 to schedule an assessment.
Depends on the wall’s condition. If the block face is intact but bulging, we remove and rebuild it with proper geogrid and a drainage plane behind the face. If the block itself is cracked, spalling, or the wall is severely leaning, replacement is cheaper long-term than patching. On Redwood City hillside clay, a wall that’s moving is usually a wall that was under-built from the start. We’ll tell you which one you’re looking at. Call (877) 752-3868 for a straight answer and a written quote.
Yes, with the right edge details. Tight downtown lots and Unilock in West Menlo Park concentrate roof and hardscape runoff into one corner, so the driveway needs a directed drainage path and a properly compacted subgrade at the street tie-in. We install Unilock pavers on these lots regularly, setting the field to handle the water load rather than fight it. Call (877) 752-3868 to discuss your lot and get a free estimate.
Service Areas Near Redwood City
We serve Redwood City and the surrounding San Mateo County communities, including Foster City, Redwood Shores, Belmont, San Mateo, San Carlos, and the Highlands-Baywood Park neighborhoods. See our Redwood City service area for details. We also provide Unilock sales & service across the county, plus focused coverage in Unilock service in Burlingame and Unilock service in Hillsborough.
Book Your Unilock Service in Redwood City Today
Call (877) 752-3868 to schedule a free site read and written estimate. We’ll tell you what you have, what it needs, and what it costs before you spend a dollar. Whether it’s a paver patio, a driveway, or a hillside retaining wall, we’re ready to build it right the first time, and you won’t be rebuilding it in ten years.
Written by Glen Mossier, Owner at Ashford Contractors, serving Redwood City’s flatlands and hillsides with full-scope hardscape and general contracting.