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Unilock Construction in Cupertino, CA | Iron Beam Contractors
Iron Beam Contractors provides independent Unilock construction service across Cupertino, from paver driveway builds to estate wall repairs, as a trusted Cupertino General Contractor. We’re not a Unilock dealer and we’re not authorized by the manufacturer, but we’ve installed and repaired their pavers and walls on enough Cupertino rebuilds to know how this city’s clay soil and heritage-oak rules change the job. If you’re planning a Unilock paver driveway, patio, or wall in the 95014 or 95015 ZIP, call (833) 756-5936 for a free estimate and we’ll tell you what the base layer really needs here.
Why Cupertino Residents Choose Us for Unilock Service
We carry Unilock’s own OEM pavers, wall blocks, and joint sand for Unilock repair in Los Altos and Cupertino, so a patched Brussels Block driveway doesn’t come back looking like a quilt. But the bigger reason Cupertino homeowners call us first is that we understand what happens under the pavers in this city. Our owner, Nolan Driscoll, learned structural work through the Building and Construction Technology program at Santiago Canyon College, and he spent two-plus decades on slabs, footings, and retaining walls before Iron Beam ever touched a paver. That matters when the failure isn’t the paver at all. It’s the base.
We also know Cupertino’s permitting culture. This is not a city where you guess at a setback line or assume the inspector will wave through a drainage detail. The client base here includes Apple engineers who read spec sheets for fun, and they expect the same precision from their contractor. We show our work on every estimate: base course depth, geotextile placement, joint sand selection, and exactly how we’ll handle grade and runoff for a Cupertino winter. When you call us at (833) 756-5936, the conversation starts with what’s under the surface, not a brochure pitch.
Styles & brands we work with







Common Unilock Construction Problems We Solve in Cupertino
- Efflorescence bloom on Brussels Block after winter rains. Cupertino’s wet winters pull moisture up through dense pavers, especially when base drainage is marginal on the city’s expansive clay. The white chalky film isn’t structural, but it looks bad on a paver driveway your neighbors walk past every day. We can clean it, identify the drainage issue, and re-seal so it doesn’t return with the next storm cycle.
- Edge spalling and joint sand loss on driveways. Cupertino’s clay moves. It swells with winter moisture and shrinks through the dry summer, and if the sub-base wasn’t engineered for that movement, the pavers at the driveway edge crack and the joint sand washes out in heavy runoff. We’ve seen this fail on homes where the original sub-base was a minimum-depth install, and the fix usually means re-leveling the edge course with a proper compacted base.
- Color fade or mottling on older Unilock pavers. Cupertino gets intense summer UV, and pavers next to a west-facing wall or a white stucco garage bake in reflected heat. Older Unilock pavers lose their pigment uniformity over time. We match replacement units using current Unilock OEM stock and can blend them with the existing field so the repair doesn’t announce itself as a patch.
- Estate Wall settlement or bulging. On Cupertino ranch homes with sloped side yards, a Unilock Estate Wall that was built without proper geogrid and drainage behind the wall will eventually lean or bulge in clay soil. This is a structural problem, not a cosmetic one. We rebuild the wall with the manufacturer’s geogrid spec and a drainage column behind the block.
- Paver patio base failure on slab-on-grade add-ons. When a Cupertino homeowner adds a paver patio next to an original 1950s slab foundation, the new base settles at a different rate than the old slab. We account for that transition with a compacted base detail that prevents a visible step or a trip hazard at the threshold.
Unilock Service in Cupertino: What Local Conditions Mean for Your Equipment
The single biggest wildcard on a Unilock construction job in Cupertino isn’t the paver. It’s the tree. Cupertino’s tree-protection ordinance is among the strictest in Santa Clara County, and a single heritage oak can dictate the entire footprint of a rebuild or addition. That means a paver driveway you wanted to run straight to the garage may have to curve around a root-protection zone, or a paver patio may need a permeable base detail the city has to approve before you ever break ground. We deal with this constantly. On a rebuild off Saratoga-Sunnyvale Road in the 95014 ZIP, the homeowner wanted Unilock service in Saratoga for a Brussels Block driveway, but a protected oak in the front yard forced us to shift the layout and use a permeable base detail to protect the root zone. We installed the pavers with Unilock’s joint sand and a slight grade away from the tree, and the city inspector signed off without a redesign. That’s not a rare edge case in Cupertino. It’s a regular Tuesday. If you’re planning Unilock work on a property with a mature oak anywhere near the building envelope, call (833) 756-5936 before you commit to a design. We’ll tell you what the arborist report is going to say.
Unilock Models & Products We Service in Cupertino
We install and repair the full range of Unilock residential hardscape products, with the most common Cupertino work involving Brussels Block driveways, Beacon Hill patios, and Estate Wall retaining structures. We also work with comparable Techo-Bloc lines when a homeowner wants a side-by-side comparison before committing. Our parts approach is simple: we use Unilock’s own OEM pavers, wall blocks, and proprietary joint sand for any repair or matching job. We stock common Brussels Block and Beacon Hill units locally for faster Cupertino turnaround, and we order less common profiles directly from Unilock distribution when the job calls for it. No aftermarket lookalike units that fade to a different color inside two summers.
See the difference
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AfterUnilock Service Pricing in Cupertino
Every job is different, but here’s the range we quote most often in Cupertino for Unilock construction work:
| Service | Typical Cupertino Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
What drives the number: the size of the area, whether we’re working around a protected tree, how much the existing base needs to be rebuilt, and whether the site has slope or drainage work attached. A free estimate includes all of that, in writing, with the base depth and materials specified. Call (833) 756-5936 and we’ll put a real number on your project, not a start-at price with change orders hiding behind it.
Serving Cupertino, CA — Our Local Coverage Area
We’re based in the Cupertino 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 Cupertino
Yes, but the tree will shape the design. Cupertino’s tree-protection ordinance means a heritage oak’s root-protection zone can force you to adjust the driveway footprint, use a permeable base, or both. We’ve done exactly that on a rebuild off Saratoga-Sunnyvale Road where a protected oak forced a layout shift, and the city signed off without a redesign. Call (833) 756-5936 before you draw the plan, and we’ll tell you what the arborist will require.
It’s the single biggest factor we correct for. Expansive clay swells with winter moisture and shrinks in summer, which means a paver patio built on a thin base will shift, lose joint sand, and eventually develop low spots. The fix is a properly engineered sub-base with geotextile and drainage, not a thicker layer of sand. Our estimates specify the base depth and compaction method so the patio holds through Cupertino’s wet-dry cycle.
Brussels Block is the one we recommend most for Cupertino driveways. It has the dimensional tolerance and color consistency that holds up to close inspection, and it’s durable enough for daily vehicle loads. But the paver is only half the answer. If the base isn’t engineered for clay movement and winter runoff, even Brussels Block will spall at the edges. We’d rather show you the full assembly than argue about the pretty top layer. Call (833) 756-5936 for a free estimate that includes the base spec.
Yes. Most of the Estate Wall repairs we do in Cupertino and nearby communities, including Unilock repair in Loyola, are on 1950s and 1960s ranch homes where an older retaining wall was built without geogrid or proper drainage. We remove the face units, rebuild the wall with the manufacturer’s geogrid spec and a drainage column, and reset the original block where it’s still serviceable. If the block is degraded, we match it with current Unilock OEM stock.
They slow us down, and they should. Compacting a paver base in saturated clay is a shortcut that causes failure later. We schedule heavy site work around Cupertino’s wet season and protect open sub-grades with tarps when a storm comes through mid-project. A week of rain delay is cheaper than rebuilding a sunken patio in two years. For a realistic timeline on your Cupertino project, call (833) 756-5936.
Service Areas Near Cupertino
We serve Cupertino and the surrounding cities, including Unilock service in Milpitas and Unilock service in Sunnyvale. Our crews also work in Laguna Woods, Laguna Hills, Portola Hills, Los Serranos, Mission Viejo, and Aliso Viejo for larger hardscape and addition projects. If you’re anywhere in this part of the South Bay, we can schedule a site visit. See our full Cupertino service area page for details, or read more about our Unilock sales & service approach.
Book Your Unilock Service in Cupertino Today
If you’re planning a Unilock paver driveway, patio, or wall in Cupertino, start with a real estimate. Call (833) 756-5936 and we’ll walk the site with you, check for tree-protection issues, and put the base spec in writing before you spend a dollar on pavers.
Written by Nolan Driscoll, Owner at Iron Beam Contractors, serving Cupertino’s hardscape and construction needs with Unilock products installed to spec.