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Unilock Construction in Daly City, CA | Milpitas Construction
We install and repair Unilock paver patios, driveways, and retaining walls across Daly City, including the 94014, 94015, 94016, and 94017 ZIP codes. The one thing that makes our Unilock work different here is the base: almost every project in this city sits on fog-belt dune sand, so we engineer the section before we lay a single paver. Unilock sales & service is what we do best, and we serve every Daly City neighborhood from Westlake to Serramonte to the Mission corridor. Call (877) 752-4194 for a free estimate.
Why Daly City Residents Choose Us for Unilock Service
Most hardscape contractors in San Mateo County know how to lay pavers. Very few of them have spent years pulling apart failed paver fields on Daly City’s dune sand and figuring out why they moved. That’s the difference. Our crew has rebuilt enough Unilock Brussels Block driveways and Beacon Hill Flagstone patios in Daly City to know what fails here: base separation over unconsolidated sand, edge-restraint buckling on sloped lots, and efflorescence that never really stops because the fog never really stops. We spec Daly City service area jobs with geotextile separation, geogrid tiebacks where retaining is involved, and Unilock polymeric joint sand so water moves through the system instead of under it. Ken Stafford, our owner, grew up in the Bay Area and has spent his whole career building on coastal soils. He’ll tell you the same thing on every quote: build the section right, or the fog will find it.
Styles & brands we work with
Common Unilock Construction Problems We Solve in Daly City
- Efflorescence blooming on Brussels Block and Beacon Hill Flagstone. That white chalky haze on north-facing patios and driveways isn’t a product defect. It’s mineral salts wicking up through the concrete paver face, driven hard by Daly City’s persistent fog and salt-laden onshore air. We clean and seal with a vapor-permeable treatment that lets the paver breathe while controlling the bloom.
- Base failure and paver tipping over dune sand. The classic Daly City failure. A compacted gravel base gets laid directly over loose, unconsolidated dune sand with no geotextile separation. Within a season or two the sand migrates up, the base drops, and pavers start tilting. We excavate to a stable depth and rebuild with a properly drained, geotextile-separated section.
- Joint-sand washout on sloped Westlake yards. Wind-driven rain and poor surface drainage scour the joint sand out of paver fields on steep grades, and the pavers shift at the edge restraints. We install new edge restraint, correct the drainage pitch, and re-sand with Unilock polymeric joint sand that locks the joints without trapping water.
- U-Cara or Treo Smooth retaining wall movement. When a U-Cara wall panel or Treo Smooth block wall was built into a dune-sand backslope without geogrid tiebacks, the wall leans within a year. We rebuild the wall section with Unilock-spec geogrid, a proper drainage column behind the wall, and a reinforced leveling pad.
- Paver driveway rutting in Serramonte. Car tires plus a soft subgrade equals ruts. When the base was never built for vehicle loading over dune sand, we see two parallel depressions within 18 months. The fix is a structural rebuild, not re-sanding, and we’ll tell you that on the first visit.
Unilock Service in Daly City: What Local Conditions Mean for Your Equipment
Here’s what a generic paver page won’t tell you: Daly City sits almost entirely on fog-belt sand dunes and marine terraces. The housing stock is overwhelmingly mid-century, and on the steep streets of the Westlake and Serramonte slopes, we routinely find 1950s homes whose rear foundations were never engineered for the dune sand. That same unconsolidated material is exactly what your Unilock patio or driveway sits on. So when a Daly City homeowner asks why their paver driveway heaved after six years, the answer is almost never “bad pavers.” It’s a thin sand bed laid over loose dune sand, no geotextile, no underdrain, and no geogrid where the grade drops off. On a Serramonte slope lot, we pulled up a heaved paver driveway and found the original installer had set Brussels Block on a thin sand bed directly over loose dune sand with no geotextile. Our crew excavated to a stable depth, built a separated structural section with geogrid, added a perforated underdrain to daylight, and re-laid the Brussels Block with Unilock polymeric joint sand and new edge restraint. The driveway now sheds the fog-season moisture instead of trapping it. That’s the job. No shortcuts, no callbacks.
Unilock Models & Products We Service in Daly City
We work with the full Unilock line, including Unilock in Colma, but in Daly City we see four products more than anything else: Brussels Block for driveways and traditional patios, Beacon Hill Flagstone for high-end patio surfaces, the U-Cara Wall System for retaining and accent walls, and Treo Smooth for clean-lined retaining walls on sloped lots. We specify Unilock OEM wall caps, geogrid, and polymeric joint sand so the system ties together as engineered, and we use quality compatible base materials rather than cutting corners on gravel or filter fabric. When an existing paver field has a good base and intact units, we reset and re-sand rather than tear out. When the base has failed over dune sand, we rebuild the section. Patching it just defers the failure, and Daly City’s fog will collect on the interest.
See the difference
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AfterUnilock Service Pricing in Daly City
What drives the cost here is the base work. A flat, well-drained yard with stable subgrade is the cheap end. A sloped Serramonte lot with dune sand and no existing drainage is the expensive end. Your free estimate includes a site visit, a look at the existing grade and drainage, and a written line-item quote so you know exactly what the section work costs before any pavers go down.
| Service | Daly City Price Range |
|---|---|
| Paver Patio Installation | $3,500 – $11,000 |
| Paver Driveway Installation | $7,000 – $18,000 |
| Driveway Replacement | $5,000 – $14,000 |
| Driveway Sealing | $250 – $700 |
Call (877) 752-4194 for an exact quote. We’ll walk the site, check the subgrade, and give you numbers you can plan around.
Serving Daly City, CA — Our Local Coverage Area
We’re based in the Daly City 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 Daly City
We’re an independent Unilock installer serving all of Daly City and offering Unilock service in Visitacion Valley, and we are not manufacturer-affiliated or authorized. We build to Unilock’s published installation specs and use Unilock OEM wall caps, geogrid, and polymeric joint sand, but we don’t operate under any partnership or warranty endorsement from Unilock.
If the base is sound and the pavers are intact, we reset and re-sand. You don’t need a full replacement because a few edge units drifted. But if the base has failed over dune sand or the field is rutted from vehicle traffic, a reset will buy you a year at most. We’ll show you what we found on the site walk and let the condition of the base drive the recommendation. Call (877) 752-4194 and we’ll give you an honest read.
A typical patio runs three to five working days, and a driveway runs five to eight, depending on how much section work the dune-sand subgrade requires. Slope lots in Westlake and Serramonte with retaining or drainage needs run longer. We give you a schedule in writing before we start.
We install and repair Brussels Block, Beacon Hill Flagstone, the U-Cara Wall System, and Treo Smooth retaining wall units across Daly City, and we also provide Brisbane Unilock service. We also source Unilock replacement caps, geogrid, and polymeric joint sand so repairs match the original system.
Driveway replacement in Daly City typically runs $5,000 – $14,000. The range depends on how much of the existing base has to be excavated and rebuilt over the dune-sand subgrade and whether we’re adding an underdrain or edge restraint. Call (877) 752-4194 for a free on-site estimate with a written line-item breakdown.
Service Areas Near Daly City
We serve Daly City and the surrounding communities, including Unilock service in Mission District, Unilock service in Broadmoor, Marin City, and the nearby Peninsula neighborhoods. If your property sits on coastal sand or a steep slope, we’ll bring the same subgrade-first approach.
Book Your Unilock Service in Daly City Today
Build it right the first time, and the Bay Area doesn’t give you a free pass on shortcuts. Call (877) 752-4194 to schedule your free Unilock construction estimate in Daly City. We’ll walk the site, check the grade, and give you a quote you can actually build on.
Written by Ken Stafford, Owner at Milpitas Construction, serving Daly City and the Bay Area.