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Unilock Construction in San Antonio Heights, CA | Elmwood Contractors
We provide independent Unilock construction and repair across San Antonio Heights, from paver driveways and patios to retaining walls on steep foothill lots. The one thing that makes our Unilock work here different is that we permit every job through San Bernardino County, not Upland, and we engineer for slope, drainage, and fire-resistant setbacks that flat-lot paver crews miss. If you’re planning a Unilock project in the 91784 ZIP, call (866) 253-8554 for a free estimate. We’re Elmwood Contractors, led by Nolan Shepherd, and Unilock is one of the hardscape brands we spec most often for inland Southern California.
We’re independent Unilock specialists, not authorized by the manufacturer. That matters because our recommendations come from what holds up on San Antonio Heights terrain, not what a supplier wants us to move. We’ve watched Brussels Block pavers survive decades on properly compacted bases and watched the same pavers fail in three years when the base work was rushed. The difference is almost always what’s underneath.
Why San Antonio Heights Residents Choose Us for Unilock Service
We name the brands going into your home before the contract is signed. For Unilock work, that means specific product lines like Brussels Block, Beacon Hill, Townhall, and U-Cara, along with the base materials, geogrid, and drainage components going under and around them. No mystery fill. No “whatever the yard carries.” You’ll know exactly what’s being installed and why.
Nolan Shepherd runs every job with the same standard he learned doing ground-up residential work across North Orange County: framing that’s plumb the first time, and materials that hold up to Southern California’s heat cycles without callbacks. He grew up around late-60s construction and knows what age, slope, and weather do to a property. That background translates directly to how we approach Unilock hardscaping in San Antonio Heights, where mid-century homes on sloping lots present the exact conditions that test paver systems.
We use Unilock’s own OEM blocks and caps for structural walls and high-traffic driveways to preserve the system’s engineered fit. For less critical components like polymeric sand and drainage fittings, we’ll source quality aftermarket products when they perform as well and cost less. The right material in the right place. Everything else is just catching up to that decision.
Styles & brands we work with
Common Unilock Construction Problems We Solve in San Antonio Heights
- Paver shifting and settlement on sloped driveways. The alluvial fan under San Antonio Heights is sandy and porous. When winter rain saturates an under-compacted base on a grade, pavers start migrating downhill, usually toward the garage or the street. We regrade, install a reinforced base, and reset the pavers with proper edge restraints.
- Efflorescence and surface spalling on south-facing slopes. Intense inland sun combined with repeated wet-dry cycles draws soluble salts to the surface of Unilock pavers, leaving white staining or, in worse cases, surface flaking. We treat efflorescence and, when needed, replace spalled units with matching OEM block so the repair doesn’t look like a patch.
- Retaining wall block cracking or bowing on hillside terraces. Unilock wall systems need geogrid reinforcement when they’re holding back the kind of slope loads common above Upland. Walls built without it, or with grid spaced wrong, bow outward within a few years. We rebuild the wall with the correct reinforcement schedule and OEM blocks.
- Drainage failure where Unilock pavers meet fire-resistant hardscaping. San Antonio Heights requires defensible-space design, which often means a band of gravel or fire-resistant ground cover against the house. If the transition isn’t graded right, water ponds at the foundation during heavy rain. We install concealed channel drains and regrade so runoff moves away from the structure.
- Base washout from Santa Ana-driven rain. The same wind corridor that raises fire risk also drives hard, angled rain into hillside hardscapes. Without proper drainage and edge containment, water undermines the base and creates voids under the pavers. We repair the base, address the drainage path, and reset the surface.
Unilock Service in San Antonio Heights: What Local Conditions Mean for Your Equipment
Because San Antonio Heights is unincorporated San Bernardino County territory, every Unilock hardscape we install here is permitted through the county, not Upland. That’s more than a paperwork detail. County inspectors in this foothill zone routinely require fire-resistant construction details and brush-clearance setbacks that out-of-area paver crews don’t know to plan for. A driveway or patio that would sail through city permitting in Rancho Cucamonga can get flagged here for clearance distances, surface materials near the structure, and drainage that directs water without eroding the slope. We’ve built enough projects in 91784 that we anticipate the county’s questions before the plan check, which keeps the job moving instead of stalling on a resubmission.
On a steep lot off Ridgeview Drive, we replaced a failing Unilock Brussels Block driveway where the original base had been washed out by winter runoff. The pavers were shifting downhill toward the garage, and the homeowners were chocking their car wheels. We regraded the slope, installed a reinforced base with a concealed channel drain, and reset the Brussels Block with Unilock’s OEM edge restraints, then added a county-compliant fire-resistant border. The driveway hasn’t moved since, and the drainage handles the Santa Ana-driven rain that used to pool at the foundation.
Unilock Models & Products We Service in San Antonio Heights
We work with the full Unilock lineup most common in Southern California hardscapes: Brussels Block for driveways and walkways where a tumbled, old-world look holds up to vehicle traffic; Beacon Hill for larger-format patios and pool decks; Townhall for a cleaner, more linear patio or walkway profile; and U-Cara wall systems for terraced retaining walls and seating. Our Unilock sales & service experience spans all of these product lines.
For structural walls and high-traffic driveways, we use Unilock’s OEM blocks and caps so the color, texture, and dimensional fit match the original system. For repairs where the existing pavers are still structurally sound, we’ll source aftermarket polymeric sand and drainage components to manage cost without compromising performance. We stock standard-spec materials locally for faster San Antonio Heights turnaround, and odd-lot or color-matched runs are ordered before the project starts so they’re on site when the crew needs them.
See the difference
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AfterUnilock Service Pricing in San Antonio Heights
Here’s what to expect for common Unilock scopes in the 91784 area. These ranges reflect the slope, drainage, and permitting realities of San Antonio Heights, not generic flat-lot pricing.
| Project | Typical Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Home Addition (with associated hardscape) | $45,000 – $130,000 |
What drives the cost on a San Antonio Heights Unilock job is the site itself: slope steepness, access for equipment and material staging, whether we’re importing engineered fill or exporting spoils, and the drainage work required to keep water off the foundation. A free estimate includes a written line-item quote with the specific Unilock product line identified, so you can compare it against any other bid and know exactly what’s included. Call (866) 253-8554 to schedule one.
Serving San Antonio Heights, CA — Our Local Coverage Area
We’re based in the San Antonio Heights area and know this community well, and we also handle Unilock service in Montclair. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Unilock Construction in San Antonio Heights
Yes. San Antonio Heights is unincorporated county territory, so permits go through San Bernardino County, not the City of Upland. Driveways and retaining walls over a certain height require plan check and inspection, and the county often adds fire-resistant construction and brush-clearance conditions. We handle the permit package as part of the job. Call (866) 253-8554 and we’ll tell you what your specific project triggers before you commit to anything.
By engineering the base for the grade, not the paver. On San Antonio Heights slopes, that means deeper excavation, geotextile separation, proper compaction in lifts, reinforced edge restraints, and drainage that moves water off the paver system instead of through it. The pavers are the visible layer; the base is what keeps them in place. For an exact plan on your slope, call (866) 253-8554, estimates are free.
Unilock pavers and wall blocks are made of concrete, which is non-combustible, and that satisfies the hardscape portion of defensible-space requirements. But fire-resistant design here is mostly about clearances, ground cover transitions, and access for fire equipment, not the paver itself. We build those county requirements into the layout from the start.
White staining is typically efflorescence, which happens when water moves through the paver and carries soluble salts to the surface. San Antonio Heights’ intense sun and wet-dry cycles make it common, especially on south-facing slopes. It can usually be cleaned with the right efflorescence remover, but the underlying moisture path should be checked, otherwise it returns. We diagnose whether it’s cosmetic or a drainage symptom before touching the surface.
Yes, in most cases. We order from Unilock’s current production runs and select units that match your existing paver’s color range and texture. Exact color match on pavers that have been down for years isn’t possible since weathering changes the surface, but a tight blend makes the new section read as intentional, not patched. Call (866) 253-8554 for a site look and a straight answer on match feasibility.
Service Areas Near San Antonio Heights
We serve San Antonio Heights and the surrounding foothill communities from our base in North Orange County. If you’re in Upland, Claremont, Rancho Cucamonga, or Alta Loma, we’re close enough to handle your Unilock project with the same county-permitting knowledge. See our San Antonio Heights service area page for full coverage details. For neighbors to the east and south, we also cover Unilock service in Rancho Cucamonga and Unilock service in Ladera Ranch when the project warrants the drive.
Book Your Unilock Service in San Antonio Heights Today
If you need Unilock pavers, walls, or Unilock repair in Claremont or on a San Antonio Heights hillside property, call Elmwood Contractors at (866) 253-8554. We’ll look at your slope, your drainage, and your county requirements, then give you a written estimate with the exact Unilock products we’d install. Same-day calls and site visits are available for urgent situations.
Written by Nolan Shepherd, Owner at Elmwood Contractors, serving San Antonio Heights and greater North Orange County. Nolan grew up in Fullerton’s Sunny Hills neighborhood and has spent two decades building and remodeling homes across Southern California’s inland communities.