Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
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Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Why San Bernardino Homeowners Choose Unilock Construction
We provide independent San Bernardino Unilock service across the area, from paver driveways and patios to U-Cara retaining walls. As an independent Unilock service provider, we’re not affiliated with or authorized by the manufacturer, but we’ve installed and repaired their systems for years, and we know exactly how their pavers behave in this city’s hard water, thermal cycling, and decomposed granite soils. If your Unilock patio has white efflorescence blooming across Brussels Block, or your driveway has settled into ruts, we can diagnose the real cause and fix it without a full replacement. Call (855) 382-3257 for a free estimate on Unilock work in San Bernardino.
Why Trust Toolbox Contractors for Your Unilock Construction?
Unilock pavers are only as good as the base under them. That’s the thing most contractors in San Bernardino miss. Norm Castellano, who runs Toolbox Contractors out of San Bernardino, learned that the hard way growing up in Muscoy, where Unilock service in Muscoy was needed because driveways heaved and patios cracked when the base was never the priority it should have been. He went through the construction technology program at San Bernardino Valley College and spent nearly two decades on residential framing, roofing, kitchens, and hardscape before starting this company, and he still says “tell me what you’ve got and I’ll tell you what it actually needs.”
When we take on a Unilock job, we’re looking at drainage first, base compaction second, and the pavers themselves third. Anybody can lay blocks. Fewer know how to keep them flat in San Bernardino’s decomposed granite soils and 100-degree summer stretches. We re-compact bases in lifts, use geotextile where native soil wants to migrate into the aggregate, and match paver color and texture by sourcing genuine Unilock units instead of whatever’s on the shelf at the supply yard. As a full-scope general contractor, we also handle what sits around the pavers: retaining walls, fence lines, drainage, and even the roof that sheds onto the patio below. One crew, one point of accountability, inside and out.
Styles & brands we work with







Common Unilock Construction Problems We Fix in San Bernardino
- Efflorescence on Brussels Block and Cambridge Cobblestone. White chalky powder forms when hard irrigation water and monsoon-season moisture pull minerals up through the paver. San Bernardino has notoriously hard water, so we see this constantly. Scrub-and-seal isn’t always the fix; often it’s a drainage adjustment that stops the water from moving through the paver in the first place.
- Edge spalling and hairline cracks from thermal cycling. Summer days over 100°F followed by cold foothill nights put stress on paver edges. On Brussels Block specifically, we see the corners pop when the base wasn’t compacted in lifts, leaving thin support under the edge units. We re-set with proper edge restraint and compacted aggregate.
- Base settlement and rutting under driveways. If the native decomposed granite wasn’t compacted with a geotextile separator, the sub-base shifts and the driveway develops wheel ruts. This is common on 1980s and 1990s San Bernardino tract homes where quick construction cuts corners. We pull the field, re-compact in lifts, and reset the original pavers where they’re still sound.
- Polymeric sand washout and loose pavers. Heavy January rains wash the joint sand out of patios and walkways, especially on Beacon Hill flagstone-style layouts where the joints are wider. Once the sand goes, the pavers move. We re-sand with a high-quality polymeric blend rated for freeze-thaw cycling, then compact and mist-cure properly.
- Retaining wall leaning or bulging on U-Cara systems. The U-Cara wall system is modular and looks sharp, but on sloped San Bernardino lots without proper drainage behind the wall, hydrostatic pressure pushes the face forward. We repair with drainage stone, perforated pipe, and geogrid reinforcement, then re-stack the face. The bricks usually survive; the wall’s internal drainage is what failed.
Unilock Parts & Our Repair-vs-Replace Approach
For visible repairs, we source genuine Unilock pavers, caps, and matching accessories. Color and texture matter on a repair, and aftermarket units never blend right, especially on Brussels Block with its aged patina. For the unseen layers, we use industry-standard base aggregate, geotextile, and polymeric sand, because that’s where engineering spec matters more than the brand stamp. If a few cracked units or a settled corner is the whole issue, we repair and re-set. We only recommend full replacement when the base failure spans the field or the original pattern can no longer be matched with available units. Honest assessment first, and the repair quote is free. Call (855) 382-3257 and we’ll walk the site with you.
Our Unilock Service Process – Step by Step
- 1
Site walk and diagnosis. We inspect the paver field, check drainage, probe the base depth, and identify whether the failure is in the joints, the units, or the sub-base. Norm or a senior crew member does this walk, not a salesperson.
- 2
Repair or install plan. We quote the scope in writing, with line items for base work, geotextile, paver units, edge restraint, and polymeric sand. No vague allowances.
- 3
Base work first. We excavate to the right depth, compact in lifts with a plate compactor, lay geotextile where the native soil needs separation, and screed the bedding layer flat. This is where San Bernardino jobs fail if it’s rushed, so we don’t rush it.
- 4
Paver install or re-set. We lay or re-lay units to the manufacturer’s pattern, cut with a masonry saw, and set edge restraint so the field can’t drift outward.
- 5
Joint sand, compact, and test. We apply polymeric sand, sweep it into the joints, compact the field, mist-cure per the sand manufacturer’s spec, and run a drainage check. We walk every square foot with you before we call it done.
See the difference
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After
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After
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AfterUnilock Products We Service & Install in San Bernardino
We install and repair the full range of Unilock paver and wall products: Brussels Block for driveways and streetscapes, Beacon Hill for flagstone patios and walkways, Cambridge Cobblestone for traditional cobble surfaces, and the U-Cara retaining wall system for terraced lots and planter walls. For most Unilock in Highland and San Bernardino repair jobs we carry common Brussels Block and Cambridge Cobblestone units locally or can have matching units delivered fast from regional distributors. Pattern matching matters more than speed, so we’ll order the right unit rather than substitute a near-match.
We Also Service These Brands
Unilock isn’t the only brand we work with. We also install and service KraftMaid cabinetry, Cambria and Silestone countertops, and Kohler fixtures as part of our full-scope general contracting work. So if your paver patio project turns into a whole outdoor living upgrade with a new kitchen inside too, we handle it end to end with one contract and one crew.
FAQs – Unilock Construction Service in San Bernardino
Yes, we can. Brussels Block develops a specific patina over years of San Bernardino sun and irrigation, so we pull a sample from your field and match it against current production lots at Unilock distributors. New units will never be exact against heavily aged pavers, but we blend them into the field layout so the repair reads as intentional, not patched. Call (855) 382-3257 for an exact assessment and quote.
That white powder is efflorescence, and it’s extremely common in San Bernardino because of hard irrigation water and monsoon-season moisture that pushes mineral salts through the paver. It can be cleaned, but if the water source keeps cycling through the paver, it’ll come back. We fix this by addressing drainage and irrigation overspray first, then cleaning and sealing if the water problem is solved.
Not because of the heat itself. Unilock pavers are fired to handle temperature swings, but San Bernardino’s 100°F summers followed by foothill cold snaps do stress the base and joints. What actually fails is usually the sub-base (rutting under decomposed granite soil), the edge restraint (spalling when units drift), or the polymeric sand (washout after heavy rain). The paver units themselves survive most failures. That’s why we repair rather than replace when the field is still sound.
Most of the time, yes. We pulled a Unilock Brussels Block driveway in north San Bernardino last year where the center had rutted after a decade of summer heat and shifting base. We pulled the affected field, re-compacted the base in lifts with fresh geotextile, reset the original pavers with new matching units at the broken edges, and re-sanded with polymeric sand. The driveway drains and reads as one continuous surface again, without a full replacement. If your base failure is localized, re-setting is usually the right call. Call (855) 382-3257 for a free site walk.
Yes. We install and repair the U-Cara retaining wall system, including proper drainage stone, perforated pipe, and geogrid reinforcement behind the wall face. Most Unilock repair in Loma Linda and San Bernardino involves U-Cara failures from walls built without internal drainage, especially on sloped foothill lots and in the older terraced neighborhoods near the base of the mountains. The wall face is rarely the problem; the drainage behind it is. We fix both.
Unilock paver work in San Bernardino ranges depending on scope, site access, and how much base repair is needed. Here are our market-calibrated ranges:
| Service | Typical San Bernardino Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Driveway Replacement | $5,000 – $14,000 |
| Driveway Sealing | $250 – $700 |
If you’re on a foothill-edge lot with WUI code requirements or heavy decomposed granite, base work can push the number higher. Call (855) 382-3257 for a written line-item quote. Estimates are free.
Book Your Unilock Service in San Bernardino, CA
If your Unilock patio, driveway, or retaining wall needs work, call Toolbox Contractors at (855) 382-3257. We’ll schedule a free site walk, diagnose the real problem, and give you a written quote that breaks down the base work, paver units, and labor line by line. San Bernardino’s soils and heat are hard on hardscape; we build for that reality.
Written by Norm Castellano, Owner at Toolbox Contractors, serving San Bernardino and the Inland Empire.