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Unilock Construction in Fontana, CA | Toolbox Contractors
We install and rebuild Unilock paver systems across Fontana, and the one thing that sets our work here apart is knowing how mid-century tract-lot subgrade and Cajon Pass wind loading behave together. That pairing decides whether a paver driveway or patio stays locked for a decade or starts creeping within two seasons. We’re an independent installer, not manufacturer-authorized or endorsed by Unilock, and we’d rather tell you that up front than let you find out after a failed repair. Call us at (855) 382-3257 for a straight answer on your existing Unilock field or a new paver driveway, patio, or concrete replacement project.
Why Fontana Residents Choose Us for Unilock Service
Norm Castellano grew up in Muscoy, just northwest of San Bernardino, and he’s spent the better part of two decades untangling contractor messes across the Inland Empire before real work could even begin. That’s how he built Toolbox Contractors, a full-scope general contractor crew that handles everything from paver driveways and patios to kitchens, roofs, and ADUs. What that means for your Unilock project in Fontana is simple: we diagnose paver problems against the actual conditions of your lot and street, not against a manufacturer brochure.
We’ve rebuilt Unilock Brussels Block driveways off Sierra Avenue, re-laid Beacon Hill patios in 92337 subdivisions, and re-sanded more front walks than we care to count after Santa Ana wind events stripped the joints bare. Because we work with 50+ vetted material brands across every phase of a project, Unilock fits into a bigger picture for us, not a one-trade lane. Need a paver patio tied into a new retaining wall? We’ll sequence it with the Seneca Valley wall system and compact the base once, not piecemeal it across three separate contractors.
Styles & brands we work with
Common Unilock Construction Problems We Solve in Fontana
- Polymeric joint sand blowing free on driveway aprons and front walks. Santa Ana wind funnels down the Cajon Pass and hits the older tract streets in 92335 and 92336 hard. Joints open up, then fill with windblown dust and weeds. We re-sand with Unilock-compatible polymeric sand and reset the edge restraint so the field can’t drift again.
- Edge restraint failure on driveways. Expansive Inland Empire soil works origininal spikes loose over one or two wet-dry cycles, and the paver field starts creeping at the driveway-to-garage transition. We remove the damaged restraint, reset the curbing, and in most Fontana lots that means digging deeper than the original base allowed.
- Efflorescence and sun-chalking on lighter pavers. Fontana’s summer heat sits north of 100°F for weeks, and hard local irrigation water leaves a white bloom that plain rinsing won’t touch. We treat the surface and correct the drainage that feeds the mineral deposit, so it doesn’t just reappear next irrigation cycle.
- Settlement and rutting in paver patios and driveways. Kaiser-era tract lots built in the 1950s through 1970s were graded with inconsistent fill. Where original concrete was overlaid, the base depth was often cut short. That means a Brussels Block driveway that looks fine after install can develop wheel ruts within two years.
- Faded or chalking pavers that still have structurally sound bases. Not every paver needs to come out. If the base is solid and the jointing is intact, surface restoration and re-sanding is the honest move. We’ll tell you when replacement is the better money.
Unilock Service in Fontana: What Local Conditions Mean for Your Equipment
Here’s the thing nobody tells you about Unilock work in Fontana, and it’s the difference between an install that lasts and one that heaves in three years. The tract lots that dominate 92335 and 92336 were graded and built fast for the Kaiser Steel mill workforce in the 1950s through 1970s, and a lot of those original builders left shallow, inconsistently compacted fill beneath the driveway and patio slabs. Modern Unilock installation assumes a properly compacted subgrade. On a 1960s single-story stucco tract home off Sierra Avenue, our crew pulled a heaved and creeping Brussels Block driveway where the original edge restraint had let go in the expansive soil. We excavated to a deeper compacted base, reset the curbing and re-laid the field, then re-sanded with polymeric joint sand so the wind funneling down the Cajon Pass can’t strip the joints again. That’s what “done right” means in Fontana: accounting for the lot’s history before you lay the first paver. A newer 92337 subdivision usually needs far less base work than the older streets do, and we price the difference honestly.
Unilock Models & Products We Service in Fontana
We work with the Unilock product lines you actually see on Fontana driveways and patios: Brussels Block, Brussels Dimensional, Beacon Hill, and the Seneca Valley retaining wall system. When we repair or rebuild, we match Unilock’s own paver profiles and their proprietary edge restraint and joint-sand systems rather than substituting generic sand or plastic edging. Compatibility is what keeps the field locked after a wind event, and we’ve seen enough generic substitutes fail in one season to stop using them entirely. We’re an independent Unilock service provider, which means we source what your specific project needs and stock common profiles locally for faster Fontana turnaround. If your section of pavers has a profile we can’t match quickly, we’ll tell you before we start, not halfway through.
See the difference
Before
After
Before
After
Before
AfterUnilock Service Pricing in Fontana
| Service | Price Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Concrete Driveway Installation | $4,500 – $12,000 |
| Driveway Replacement | $5,000 – $14,000 |
A free estimate from us includes walking the lot, checking the existing base if you have one, and telling you what repair actually makes sense versus what’s just buying one more season. Call (855) 382-3257 for an exact quote.
Serving Fontana, CA — Our Local Coverage Area
We’re based in the Fontana 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 Fontana
Santa Ana winds ripping down the Cajon Pass strip fine polymeric sand out of joints on exposed driveway aprons and front walks, especially on the older tract streets in 92335 and 92336 where homes sit perpendicular to the wind line. Once the sand is gone, joints fill with windblown dust and weeds, and every gust makes it worse. The fix is re-sanding with Unilock-compatible polymeric joint sand after resetting the edge restraint so the field can’t creep. We also offer Unilock service in Bloomington for similar wind-driven joint failures. Call (855) 382-3257 and we’ll tell you if your field needs a full re-sand or just targeted joint repair.
Yes, in most cases. Kaiser-era tract lots built in the 1950s through 1970s sit on shallow, inconsistently compacted fill that original builders left beneath slabs. A Unilock driveway installed to modern depth spec on that fill will settle and rut within two to three years. Our Rialto Unilock service handles the same Kaiser-era subgrade issues. We excavate and re-compact the subgrade before laying the paver base, which costs more up front but eliminates the creep-and-heave cycle. Call (855) 382-3257 for an inspection of your specific lot.
Most detached paver patios at grade don’t require a building permit in Fontana, but retaining walls over a certain height, or any patio tied to drainage changes, do. We’ll check your specific scope against current Fontana code during the free estimate and tell you exactly what needs to be pulled. Don’t guess; call (855) 382-3257 and we’ll verify it for you.
Lighter-toned Unilock pavers, especially Brussels Block in lighter blends, will show efflorescence and sun-chalking after a few years of 100°F-plus UV plus hard local irrigation water. Our Glen Avon Unilock service sees identical chalking on south-facing installs. It’s a white mineral bloom, not a structural failure. We treat the surface and correct the drainage feeding the deposit, so it doesn’t return next irrigation cycle. Call (855) 382-3257 if your pavers have gone chalky and you want an honest read on restoration versus replacement.
We repair sections when the base is sound and the failure is confined to edge restraint or jointing. Individual pavers can be lifted and re-laid, but a base that has failed or a creep that keeps returning means rebuild the base. We provide Pedley Unilock service with the same rebuild-versus-repair assessment. Re-sanding a bad install just buys one more season. We’ll tell you which one you have. Call (855) 382-3257 for a straight diagosis.
Service Areas Near Fontana
We serve Fontana and the surrounding Inland Empire communities, including San Bernardino, Colton, Muscoy, Rialto, and Highland. If your property is in an adjacent neighborhood or an unincorporated pocket, call (855) 382-3257 and we’ll confirm coverage. We also provide Unilock service in Crestline and Unilock service in Mentone for customers in those communities. And for a broader look at what we do across the region, see our Fontana service area page or our main Unilock sales & service overview.
Book Your Unilock Service in Fontana Today
If your Unilock driveway is creeping, your patio is settling, or your joints keep opening up after every Santa Ana event, call us. We’ll walk the lot, tell you what it actually needs, and give you a free written estimate. Call (855) 382-3257 to schedule yours.
Written by Norm Castellano, Owner at Toolbox Contractors, serving Fontana and the surrounding Inland Empire. Tell me what you’ve got and I’ll tell you what it actually needs.