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Unilock Construction in Ontario, CA | Sawyer Remodeling
We install and repair Unilock paver systems across Ontario, CA as an independent General Contractor - Ontario, not a manufacturer affiliate. What makes our Unilock work different here is simple: we build for Ontario’s expansive clay soil and inland freeze-thaw cycles, which destroy poorly based paver jobs faster than almost anything else. If you’re pricing a Unilock driveway, patio, or walkway in Ontario, call (254) 272-5876 and we’ll give you a written estimate before any work starts.
Why Ontario Residents Choose Us for Unilock Service
Unilock pavers are a premium product, but they only perform as well as the base underneath them. That’s where our years in Ontario matter. We’ve torn out enough failed paver jobs in this city to know exactly what goes wrong: clay soil that expands and contracts, summer heat that bakes polymeric sand into dust, and winter rain that finds every shortcut in the base. Luca Romano, our owner, learned framing and finish work at LA Trade-Tech and has been swinging tools for over two decades. He’s the first to say that good work doesn’t need a sales pitch, it just needs to be done right. We bring that same standard to every Unilock project in Ontario, whether it’s a fresh paver driveway or a repair on a patio that’s started to sink. You get a written price before we start, background-checked uniformed techs on site, and the 365-Day Done Right Promise in writing when the job closes.
Styles & brands we work with







Common Unilock Construction Problems We Solve in Ontario
- Efflorescence on Brussels Block and Beacon Hill pavers. That white, chalky film shows up after Ontario’s winter rains pull mineral salts up through the paver surface. It’s usually cosmetic, but it tells us moisture is moving through the system. The fix is often as much about drainage as it is about cleaning, and we address both. If the base wasn’t graded for runoff, the stains come back.
- Polymeric sand loss between pavers. Inland summer heat bakes the sand until it loses its bond, and then winter rain washes it out. Driveways and patios in Ontario that face full afternoon sun are the worst offenders. We re-sand with stabilized polymeric sand and make sure the joints were compacted properly the first time, because skimping on compaction is what causes repeat washouts.
- Edge restraint failure and spreading pavers. Ontario’s expansive clay pushes and pulls at plastic edging that wasn’t set deep enough. The result is pavers that drift outward at the edges and open up gaps along the border. We reset the restraint with spikes driven into stable soil, not just the clay layer, so the perimeter actually holds.
- Surface spalling and hairline cracking on Copthorne and Bristol Valley pavers. Freeze-thaw cycles are relentless on pavers that sit on a poorly draining base. Water gets trapped under the surface, freezes, expands, and pops the top layer. If the base is sound, we can replace individual damaged units. If the base is shot, a targeted repair won’t hold and we’ll tell you that straight.
- Sinking and settling across driveways and patios. This is the big one in Ontario. Native clay can’t carry paver loads, and when a contractor lays Unilock directly on clay or on two inches of sand, the whole surface settles within a season or two. We excavate to proper depth, install compacted Class II base, and only then lay the pavers.
Unilock Service in Ontario: What Local Conditions Mean for Your Equipment
Ontario sits far enough inland to get both extremes: triple-digit summer days and winter nights that dip below freezing, with rain that saturates the ground in between. Add in the expansive clay soil that covers much of the city, and you have a recipe for paver failure that generic installation guides don’t account for. Here’s the checkable fact that matters for Unilock owners in Ontario: the city’s soil expands and contracts with moisture content, which means any paver base built without compacted aggregate will shift measurably within two full seasons, not five or ten years like it might in coastal cities with sandier, more stable soil. In neighborhoods like the historic downtown blocks near Euclid Avenue, where homes sit on older clay-heavy parcels, we see this play out repeatedly. In fact, our crew recently rebuilt a sinking Unilock Brussels Block driveway right in that area. The pavers had been laid directly on native clay. We excavated, added compacted Class II base, reset every paver, and re-sanded the joints with stabilized polymeric sand. The driveway has held level through two winters since, no touch-ups needed.
Unilock Models & Products We Service in Ontario
We install and repair the Unilock lines that are most common in Ontario driveways and patios: Unilock sales & service cover Brussels Block, Beacon Hill, Bristol Valley, and Copthorne, among others. For repairs, we source genuine Unilock replacement pavers and matching accessories rather than whatever lookalike is cheapest. We use quality polymeric sands and edge restraints that are compatible with Unilock’s joint widths and paver heights. When a job calls for a fast turnaround in Ontario, we keep common paver sizes and sand products staged with our local suppliers, which means less waiting on freight and more time actually getting your patio or driveway put back together.
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AfterUnilock Service Pricing in Ontario

Unilock paver projects in Ontario fall into predictable ranges based on square footage, access, and what we’re dealing with underneath. Here’s what you can expect:
| Service | Price Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Concrete Driveway Installation | $4,500 – $12,000 |
What drives the price up is usually base work. If we’re rebuilding over clay, the excavation and aggregate cost more than a simple overlay, but skipping that step is exactly what causes the failures we get called to fix. A free estimate from us includes the full written scope: base depth, paver line, jointing material, edge restraint, and the final number. No vague allowances, no change orders you didn’t approve. Call (254) 272-5876 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
That’s efflorescence, and it happens when mineral salts from water inside the paver base migrate to the surface and dry. In Ontario, winter rain followed by warm, dry air makes it especially common on Brussels Block and Beacon Hill pavers. The stain itself doesn’t hurt the paver, but it signals moisture moving through the system, which means drainage and base grading need a look. Call (254) 272-5876 and we’ll tell you whether it’s cosmetic or something that needs real correction. Estimates are free.
In most cases, yes, we can replace individual damaged pavers and match the surrounding units with genuine Unilock product. The catch is the base underneath. If the pavers are cracked because the base failed, swapping units won’t hold and you’ll need a targeted re-lay. We’ll tell you which situation you’re in before quoting, not after we start digging. Call (254) 272-5876 for a straight answer.
We excavate below the clay line and install a minimum of four to six inches of compacted Class II aggregate, then a bedding layer of coarse sand, before any paver goes down. Ontario’s expansive clay and freeze-thaw cycles mean anything less will shift within a few seasons. The number changes based on soil tests and drainage patterns, and it’s always written into your estimate. Call (254) 272-5876 and we’ll walk you through what your specific yard needs.
Unilock pavers themselves handle high heat well, since they’re manufactured to withstand thermal expansion far better than poured concrete. What fails in Ontario’s heat is usually the jointing sand and edge restraint, not the paver units. That said, if a paver sits on a poor base, summer expansion and winter contraction will eventually crack it. The paver is rarely the problem, the prep is. Call (254) 272-5876 for an assessment.
Sweep the joints clean, reapply stabilized polymeric sand as needed, and avoid power-washing the joints directly, since that strips the sand out. In Ontario, where summer heat bakes the sand and winter rain tests it, we recommend a light re-sanding every year or two on driveways and sun-exposed patios. If the sand is washing out repeatedly, the joint compaction or drainage needs fixing, not just topping up. Call (254) 272-5876 and we’ll show you what’s actually going on.
Service Areas Near Ontario
We serve Ontario and the surrounding Inland Empire. You’ll find us doing Unilock paver driveways and patios in Ontario service area neighborhoods, plus nearby cities like Rancho Cucamonga, Chino, Fontana, and Upland. If you’re farther north, see our Unilock service in Elk Grove and our Unilock service in Santa Rosa pages for local details there.
Book Your Unilock Service in Ontario Today
If your Unilock driveway, patio, or walkway needs installation or repair in Ontario, our Bathroom Remodeling in Ontario team also handles hardscapes - call (254) 272-5876 today. We’ll get you a written price, a real arrival time, and photo updates along the way. The estimate is free.
Written by Luca Romano, Owner at Sawyer Remodeling, serving Ontario and the Inland Empire since 2005.











