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Unilock Construction in Cupertino, CA | Seaside Contractors
We’re an independent contractor handling Unilock paver driveways, patios, and retaining wall installations across Cupertino, from Monta Vista ranchers to the newer custom builds off McClellan Road. The part most Cupertino homeowners miss before a Unilock project starts is the base: this city’s mid-century lots carry expansive clay and 1950s grading that was never engineered for proper drainage. Get that layer wrong and even the best Unilock paver fails. Call (833) 589-8103 for a free estimate, and we’ll start by looking at what’s underground.
Why Cupertino Residents Choose Us for Unilock Service
We’ve installed and repaired Unilock surfaces on enough Cupertino lots to know the difference between a unit problem and a base problem, similar to our Unilock repair in Loyola. Brussels Block. Beacon Hill Flagstone. Copthorne. Pisa2 walls. The pavers almost never fail first. What fails is the layer beneath them, usually on a lot that still has its original mid-century drainage pattern and a slab subgrade that slabs were never meant to sit on. Our team tears out heaved concrete, regrades the slope, compacts the base in lifts, and sets the units to the finish tolerance you’d expect in a city that houses Apple’s HQ.
Glen Sorrento, owner of Seaside Contractors, grew up in Foster City watching lagoon-side homes get built and rebuilt, and he studied building construction technology at College of San Mateo before spending decades working through the Peninsula’s project types. When he specs a Unilock driveway in Cupertino, he’s thinking about the clay under it and the drainage through it, not just the color on top. We also handle the full-scope work around the hardscape: the home addition that ties into the patio, the window replacement for the single-pane glass still in those 1960s walls, the re-roof when winter rain exposes the low-slope transitions, plus Unilock repair in Los Altos when needed.
Styles & brands we work with







Common Unilock Construction Problems We Solve in Cupertino
- Efflorescence bloom on Brussels Block and Copthorne units. Cupertino’s first winter rains pull mineral salts up through light-colored pavers, leaving a chalky white haze. It’s usually cosmetic, but it looks bad on a light-gray Copthorne patio. The fix often involves correcting base drainage so water stops wicking through the slab, then cleaning and sealing with a breathable sealer.
- Joint sand washout and edge creep on paver driveways. This happens on Eichler-era lots where the open-graded base was under-compacted over expansive clay. The clay swells in wet winters, shifts, and the pavers drift at the edges. We rebuild the base with proper compaction and add a buried edge restraint.
- Corner spalling on Beacon Hill Flagstone at driveway aprons. Where a paver driveway meets the street curb in neighborhoods like Rancho Rinconada, vehicles cross that transition at an angle. Without a bedded edge restraint and a properly pitched apron, the flagstone-look units chip at the corners. We set the edge restraint deeper and re-pitch the apron so the load transfers cleanly.
- Face cracking on Pisa2 retaining walls on hillside backyards. Cupertino’s hillside lots, particularly off Bollinger Road, concentrate winter drainage behind retaining walls. If the wall was built without adequate geogrid reinforcement or a proper drainage column, that hydrostatic pressure pushes the face blocks until they crack. We rebuild with geogrid and a free-draining backfill layer.
- Pooling at the garage threshold on old slab driveways. Many 1950s ranchers in Cupertino have driveways that pitch toward the house, not toward the street. We regrade and re-pitch so winter rain sheds away from the structure.
Unilock Service in Cupertino: What Local Conditions Mean for Your Equipment
Here’s the thing most generic paver installers miss in Cupertino: the city’s Eichler and rancher lots carry original mid-century grading that was never engineered for added impervious surface. When you replace a cracked concrete driveway with a Unilock paver surface, or expand a patio into what used to be lawn, you’re changing how water moves across the lot. Cupertino’s building department often wants proof of positive drainage on projects like these, because the original drainage pattern amounts to whatever slope the original builder scraped into the soil in 1962. In flat new-build subdivisions in San Jose, the subdivision’s drainage plan already handles that. On a Cupertino lot, the drainage has to be re-created on your property. That means our Unilock work here starts with a site grade review, not a paver catalog. We map the existing slopes, check the clay depth, and design the base and edge restraints so the finished surface drains before the city’s first plan check. Let’s figure out what the job actually needs, then we’ll talk materials.
Unilock Models & Products We Service in Cupertino
We work with the full Unilock paver and wall lineup you’re likely to see here, including Brussels Block for a tumbled concrete driveway, Beacon Hill Flagstone for irregular flagstone-look patios, Copthorne for a clay-brick aesthetic, and the Pisa2 retaining wall system for terracing and hillside work. When we install, we spec genuine Unilock units, because color and dimensional consistency across a 40-foot driveway matters when your neighbors are inspecting the joint lines from a second-story window. We pair them with quality base aggregate, polymeric joint sand, and proper edge restraints. When an existing Unilock surface is failing, we diagnose first: are the units actually damaged, or is the base under them the problem? If the pavers are sound, we rebuild the base and reset the units. We don’t push a full replacement when a base rebuild does the job. Learn more about our Unilock sales & service capabilities.
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AfterUnilock Service Pricing in Cupertino
Here’s what Unilock paver work and adjacent construction typically runs across Cupertino:
| Service | Price Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Home Addition (tied to patio/driveway scope) | $45,000 – $130,000 |
What drives the number in Cupertino is the base work and the drainage correction, not the paver color. A 60-foot driveway on a rancher lot with old slab subgrade costs more than a smaller patio on a flat backyard, because we’re doing real excavation and regrading before the first unit gets set. The free estimate includes a site walk, a slope review, and a line-item quote that shows base, drainage, units, and edge restraint as separate numbers. Call (833) 589-8103 for an exact quote on your Cupertino project.
Serving Cupertino, CA — Our Local Coverage Area
We’re based in the Cupertino area and know this community well, and we also provide Unilock in Sunnyvale. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Unilock Construction in Cupertino
No. We’re an independent contractor with years of hands-on Unilock installs across Cupertino’s Eichler slabs, rancher lots, and new custom builds. We’re not tied to Unilock’s dealer program, which means we spec materials, build the base, and warranty the installation on its own merits. If a paver is the right call, we use genuine Unilock. If it’s not, we’ll tell you that too.
It depends on the failure mode. If the Pisa2 wall face blocks are cracked from hydrostatic pressure behind the wall, a repair means rebuilding with geogrid and a drainage column, not just gluing the face back on. If the wall is listing or the top course is shifting, we’ll pull the affected section and rebuild it properly. Call (833) 589-8103 for an evaluation, and we’ll tell you whether it’s a repair or a rebuild based on what we see.
We specify genuine Unilock units because color and dimensional consistency across a large Cupertino driveway or patio matters. Aftermarket look-alikes vary enough in size and tone that the finished surface looks patchy at the joint lines. We pair genuine units with quality base aggregate, polymeric joint sand, and buried edge restraints.
Most paver patios run 3 to 5 working days. Driveways typically take 5 to 8, depending on how much base excavation and drainage regrading the lot needs. Cupertino’s dry summers mean weather rarely halts work, but winter rain can push a project a day or two if we’re mid-base-prep, unlike scheduling Unilock service in Saratoga where conditions differ. We’ll give you a start date and a finish range before the first day of work.
A Unilock paver patio in Cupertino typically lands between $3,500 and $11,000. The spread depends on patio size, how much base correction the clay subgrade needs, and whether we’re adding drainage or tying the patio into a walkway or retaining wall. Call (833) 589-8103 for a site-specific quote. Estimates are free.
Service Areas Near Cupertino
We serve Cupertino and the surrounding communities across Santa Clara County and the South Bay, including Cupertino service area coverage, plus Unilock service in Santa Clara for the post-war ranch neighborhoods there, and Unilock service in East Foothills for hillside lots with retaining wall and drainage needs. If you’re just outside Cupertino, call us and we’ll confirm coverage.
Book Your Unilock Service in Cupertino Today
If your Cupertino driveway is cracked, your patio is pooling, or your retaining wall is starting to lean, call (833) 589-8103 for a free estimate. We’ll walk the site, check the grade, and give you a line-item quote with no obligation. One contractor, every trade.
Written by Glen Sorrento, Owner at Seaside Contractors, serving Cupertino and the South Bay.