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Unilock Construction in Los Altos Hills, CA | Ashford Contractors
Ashford Contractors provides independent Unilock paver installation and Unilock repair in Los Altos and across Los Altos Hills, from motor courts on private lanes to terraced patios on sloped estate lots. What sets our work apart here is that we build every Unilock system as a stormwater and grading component, because the Town of Los Altos Hills reviews it that way. The paver itself matters, but on a hillside lot the base, edge restraint, and drainage determine whether the field survives its first rainy season. Call (877) 752-3868 for a free estimate on any Unilock driveway, patio, or walkway project.
Why Los Altos Hills Residents Choose Us for Unilock Service
We install and repair Unilock hardscape systems as an independent contractor, not a dealer or manufacturer affiliate, offering Mountain View Unilock service and throughout the area. That distinction matters. We work from Unilock’s published installation specs and structural detail drawings and buy the same Piso, Beacon Hill, Bristol Valley, and Brussels Block product any homeowner can specify. Then we build to the loading and drainage conditions Los Altos Hills actually enforces. Our crews spend most of their year on sloped, geotechnically reviewed estate lots, so the sub-base and edge restraint work that Unilock systems depend on is our normal scope, not an afterthought.
Glen Mossier, our owner, grew up in Foster City and trained in construction technology at Skyline College, where he learned the materials science that shows up on a real job site here. For two decades he has been focused on structural work done without shortcuts, which translates directly to how we approach paver bases on hillside grades. Build it right the first time, and you won’t be rebuilding it in ten years.
Styles & brands we work with
Common Unilock Construction Problems We Solve in Los Altos Hills
- Base failure on sloped driveways. Brussels Block pavers rocking and shifting on a grade is rarely a paver problem. It is an undersized or under-compacted aggregate base. On Los Altos Hills slopes, joints open within a season or two if the base was not built to the geotech’s slope specification.
- Joint sand loss from winter runoff. Rainfall running down long driveways and hillside swales scours polymeric joint sand out of Piso and Beacon Hill fields and ponds water at the low side of patios. We re-grade the base to direct water away before re-sanding, because sand alone will not fix a grading problem.
- Edge restraint sheared by delivery trucks. Concrete and material deliveries to upper-lane estates roll over driveway edges. Unreinforced plastic edge restraint on Brussels Block fields shears and spreads under that load. We set deeper reinforced restraint on the loaded side.
- Efflorescence and staining on light pavers. Beacon Hill and Bristol Valley show salt bloom and mineral staining hard here. Pressure-washing without re-sanding strips the joint stabilization, which then lets water under the field. The repair sequence matters.
- Driveway replacement after construction traffic. New builds and major additions in Los Altos Hills chew up existing paver driveways with crane and concrete truck traffic. We pull failed fields, rebuild the base, and re-lay with stabilized joint sand.
Unilock Service in Los Altos Hills: What Local Conditions Mean for Your Equipment
Los Altos Hills enforces lot-coverage and grading limits through its hillside and site-development review, which shapes how paver projects actually get approved and built here. Hardscape area is often one of the few surfaces a project can expand without triggering coverage issues, but that same review requires drainage and slope-stability documentation. A Unilock driveway or patio in this town has to be designed as a stormwater and grading component, not just a finish surface. This is not the case in most neighboring flatland cities, where a paver project is largely a finish trade. Here, the base depth, edge restraint, and drainage line locations are dictated by the Town’s requirements and the geotechnical report. Skip that documentation and the project stalls at plan check. Build without the engineering behind it and the field fails on the first wet winter.
Unilock Models & Products We Service in Los Altos Hills
We work with genuine Unilock units and their matching edge-restraint and joint-sand systems. Knockoff pavers of the same nominal size differ in thickness tolerance and will not lock into an existing field, so we won’t install them. Base aggregate, geotextile, and drainage fittings are sourced to engineered spec rather than brand. The Unilock lines we install and repair across Los Altos Hills include Brussels Block for driveways and motor courts on long private lanes; Beacon Hill Flagstone for patios and pool decks where a flagstone look fits the estate architecture; Piso and Treo smooth pavers for modern-replacement homes and ADU entries; and Bristol Valley for walkways and terraced path steps on sloped lots.
See the difference
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AfterUnilock Service Pricing in Los Altos Hills
Paver work here is priced by the square foot, the base depth the slope requires, and the drainage components the Town review mandates. Here is what we see on Los Altos Hills projects:
| Service | Typical Range |
|---|---|
| Paver Driveway Installation (Unilock) | $7,000 – $18,000 |
| Driveway Replacement | $5,000 – $14,000 |
| Paver Patio Installation (Unilock) | $3,500 – $11,000 |
Your free estimate includes a site walk, a look at the existing base and drainage, and a written line-item quote. No change orders because the plan was thin. Call (877) 752-3868 to schedule yours.
Serving Los Altos Hills, CA — Our Local Coverage Area
We’re based in the Los Altos Hills area and know this community well, including Unilock repair in Loyola and surrounding neighborhoods. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Unilock Construction in Los Altos Hills
Yes, in nearly every case. Driveways and large paver fields on hillside lots trigger the Town’s site-development review, which means geotechnical input, drainage plans, and lot-coverage calculations. We handle that documentation as part of the project scope. Call (877) 752-3868 and we will walk the site and tell you what your specific project requires.
Because the base under them is failing. On a Los Altos Hills grade, an undersized aggregate base lets pavers rock, joints open, and the field slowly creep downhill even when every unit is intact. The fix is rebuilding the base, not re-laying the surface. Estimates are free; call (877) 752-3868.
Brussels Block is the most common choice on Los Altos Hills driveways because its dimensional, tumbled profile handles slope loads well when paired with a proper base. Beacon Hill and Bristol Valley do well on patios and walkways. The paver line matters less than the base, edge restraint, and drainage, which is where failure actually starts.
Sometimes, if we know the original line and color lot. Unilock production batches can drift in color, so an exact visual match is not always possible. We will lay out the new units next to the existing field before committing. Call (877) 752-3868 for a site look.
It will if water is running across the field or the low side lacks a drain. Joint sand loss is a symptom of drainage, not the cause. We re-grade and add drainage first, then re-sand with a stabilized product. Call (877) 752-3868 for an exact diagnosis and a free estimate.
Service Areas Near Los Altos Hills
Ashford Contractors provides Unilock service throughout Los Altos Hills and the surrounding peninsula, including Foster City, Redwood Shores, Belmont, San Mateo, San Carlos, and Highlands-Baywood Park. If your property is on a sloped lot with a long driveway in any of these areas, the same base and drainage standards apply. See our Los Altos Hills service area page for details, or review Unilock service in Broadmoor and Unilock service in Daly City. For broader Unilock coverage, start with Unilock sales & service.
Book Your Unilock Service in Los Altos Hills Today
We pull the failed field, rebuild the base to the geotech’s slope spec, set reinforced edge restraint on the loaded side, and re-lay with stabilized sand. That is the standard here. Call (877) 752-3868 to schedule your free estimate, or reach out through our contact page. One contractor, every system.
Written by Glen Mossier, Owner at Ashford Contractors, serving Los Altos Hills and Unilock in Stanford since our first hillside estate project.