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Unilock Construction in Ontario, CA | Timberline Contractors
We provide independent Unilock installation and repair across Ontario, from paver driveways to retaining walls and patio systems. The thing that separates Unilock work in Ontario from everywhere else we install is flat lot grading: most of the older housing core was platted nearly dead-flat for tract drainage, which means base prep and water management decide whether your pavers last 5 years or 30. Call (866) 253-5808 to have us look at your site.
Why Ontario Residents Choose Us for Unilock Service
We’ve been setting Unilock pavers, walls, and steps through our Unilock sales & service in Ontario’s mid-century tract neighborhoods and on its warehouse-adjacent commercial pads long enough to know how these systems behave on our shrink-swell soils and under inland heat. Our owner, Nelson Fung, learned the trade at LA Trade-Tech before years of swinging hammers across the LA basin, and he still walks every Unilock job himself before we quote. That’s why we don’t treat a paver driveway like a box you drop on the ground. We treat it like a drainage system with a finished surface on top.
We’re an independent Unilock installer, which means we don’t answer to a manufacturer’s sales quota. We answer to you. If a repair makes sense, we’ll tell you. If a full replacement is the only honest fix, we’ll show you why. We stock Unilock-spec edge restraints, polymeric sand, and genuine units for common Upland Unilock service repairs so we’re not waiting on a distributor to get you back on your own driveway.
Styles & brands we work with







Common Unilock Construction Problems We Solve in Ontario
- Efflorescence on Brussels Block and Beacon Hill pavers. Santa Ana winds blow dust across the Inland Empire for days, and when the rare winter rain finally hits, water pushes salts up through the joint sand and they bloom white on the paver face. We clean it and address the moisture path so it doesn’t return in the same pattern next season.
- Polymeric sand washout on flat-graded driveways. Ontario’s postwar subdivisions were graded almost dead-flat, so when rain sheets across a paver driveway toward the garage slab instead of away from it, sand migrates out of the joints and the pavers start to chatter under car tires. We rebuild the base with positive fall and re-sand with the correct Unilock joint material.
- Edge restraint heave at driveway aprons and patio perimeters. Seasonal soil movement in Ontario’s older housing core pushes unrestrained edges outward. Pavers creep into the lawn or the expansion joint, and the line you spent money on stops being a line. We cut out the affected edge and lock it with Unilock-spec restraint.
- Staining and UV bleaching on light-colored Beacon Hill surfaces. West-facing driveways in Ontario take intense afternoon sun for months on end, and light tones fade unevenly while tire marks build up over years. We can often grind and reseal; when the surface is too far gone, we’ll tell you that honestly and quote a field replacement.
- Failed paver base under concrete demolition leftovers. When a homeowner or a previous contractor sets pavers over a torn-out concrete slab without rebuilding the base, the first winter reveals every void. We see this constantly in Ontario’s older tracts, where clay soils expand and shrink under thin or uneven base layers.
Unilock Service in Ontario: What Local Conditions Mean for Your Equipment
Ontario’s older core was platted when lot grading was an afterthought. Drainage meant “slope it vaguely toward the street,” and for paver driveways that’s a problem. A steeper lot in a hillside city nearby might shed water by gravity alone. Here, a flat lot means water pools, soaks the base, and starts breaking down the layers you just paid for. On a paver driveway, the fix is a properly re-graded base with positive slope toward the street or a yard drain, compacted in lifts, before a single Brussels Block ever gets set. In the mid-century tracts off the 91761 side, our crew tore out a cracked concrete apron and set a Brussels Block driveway for a homeowner whose garage slab sat only inches above lot grade, providing Unilock service in Chino and surrounding areas. We cut out the old base, rebuilt it with positive fall toward the street, and locked the perimeter with Unilock edge restraint so winter sheet flow stopped pooling against the garage door. That’s base prep, not paver choice, and it’s the reason that driveway will still be straight in ten years.
Unilock Models & Products We Service in Ontario
We install and service Brussels Block for driveways and walkways, Brussels Dimensional for tighter laying patterns, Beacon Hill for a flagstone look at a lower price point, and the U-Cara retaining wall system for grade changes and seating walls. We source genuine Unilock units and Unilock-spec edge restraints and joint sand to keep color and dimensional match accurate on repairs. For out-of-production color runs, we’ll show you quality aftermarket or blended options. And we’ll tell you straight when a spot repair won’t blend and a larger field replacement is the better value. You don’t want a patchwork driveway.
See the difference
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After
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AfterUnilock Service Pricing in Ontario
What you pay depends on how much base reconstruction the site needs and how many square feet you’re setting. Here’s what we see across Ontario’s flat-graded lots:
| Service | Typical Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Driveway Replacement | $5,000 – $14,000 |
A free estimate from us includes walking the existing grade, checking what’s under the surface, and a written line-item quote so you know exactly what the base rebuild costs versus the paver surface. Call (866) 253-5808 to schedule yours.
Serving Ontario, CA — Our Local Coverage Area
We’re based in the Ontario 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 Ontario
Will Unilock pavers hold up to Ontario’s summer heat and UV? Yes, Unilock pavers are manufactured for prolonged sun exposure, but light-toned Beacon Hill units will fade unevenly over years on west-facing driveways, and sealant choices matter in our UV environment. Call (866) 253-5808 to discuss which paver line and finish holds color longest on your lot.
My Ontario driveway floods toward the garage every winter – can pavers fix that? Yes, but not by swapping surface material alone. The base needs to be re-graded with positive slope toward the street or a yard drain, and that’s what actually stops the pooling. Call (866) 253-5808 and we’ll evaluate your grade before recommending anything.
Can you match my existing Unilock Brussels Block when only part of the driveway failed? In most cases yes, if the color run is still in production. If not, we’ll show you blended or aftermarket options and be honest when a spot repair won’t blend cleanly enough to look right.
What causes white powder on my Unilock wall or pavers? That’s efflorescence, and in Ontario it’s typically driven by Santa Ana dust settling on the surface followed by winter rain pushing salts up through the joints. We can clean it and address the moisture path so it doesn’t recur in the same pattern, offering reliable Unilock repair in Montclair and throughout the region.
Do I need a permit for a paver patio or driveway in Ontario? It depends on the scope, impervious coverage, and whether you’re changing drainage patterns. We pull permits when the city requires them and we won’t tell you a permit is unnecessary just to speed up the schedule. Call (866) 253-5808 and we’ll tell you what your specific project needs.
Service Areas Near Ontario
We install Unilock systems throughout the Inland Empire. Beyond Ontario, our crews regularly work in Rancho Cucamonga, Stanton, Buena Park, Hesperia, and Cypress. If you’re in one of those areas or somewhere in between, we’ll come walk your site and talk through base conditions, drainage, and paver selection.
Book Your Unilock Service in Ontario Today
If you’ve got a failing driveway, a patio that’s lost its line, or a wall that’s blooming white, call (866) 253-5808. Nelson Fung will walk the site, check the grade, and tell you exactly what we’d do and what it costs. Do it right the first time or explain yourself twice.
Written by Nelson Fung, Owner at Timberline Contractors, serving Ontario and the surrounding Inland Empire.