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Unilock Construction in Highgrove, CA | Toolbox Contractors
If you’re in Highgrove and need Unilock pavers or segmental retaining walls installed or repaired, this page covers exactly what you’re looking for: who we are, what we charge, and what makes Unilock work here different from every other city around Riverside. We’re Toolbox Contractors, an independent hardscape contractor based out of San Bernardino. We install and repair Unilock systems across the Highgrove area every month, and we’re upfront about one thing: we’re not a Unilock-authorized dealer. We’re just the crew that knows how their product behaves on Highgrove’s specific lots. Call (855) 382-3257 to talk through your project.
Why Highgrove Residents Choose Us for Unilock Service
Most Highgrove homeowners find us after a paver job went wrong, or after they called three “hardscape guys” who couldn’t tell a Brussels Block from a Beacon Hill. We get it. Norm Castellano, our owner, grew up in the Muscoy area just northwest of San Bernardino, surrounded by houses that were always half-finished and neighbors who needed help untangling previous contractor messes. That’s the kind of work he still gravitates toward. His crew handles Unilock sales & service with the same eye: we see the job, we look at the base and the drainage and the lot line, and we tell you what it actually needs. Tell me what you’ve got and I’ll tell you what it actually needs. That’s how we work. We install and repair Unilock systems across Highgrove as an independent contractor, not as a manufacturer rep, so our advice is about your property, not about moving product.
Styles & brands we work with







Common Unilock Construction Problems We Solve in Highgrove
These are the five issues we see most often on Highgrove properties. If one sounds familiar, we’ve fixed it before.
- Efflorescence and salt bloom on grey-toned units. Highgrove’s summer heat pulls moisture up through the pavers, and when that moisture comes from a well-fed drip system on a rural lot, the mineral content is high. That white haze on your Onyx or grey Brussels Block isn’t a defect in the paver. It’s what the water left behind. We clean it and, just as important, we adjust the irrigation so it stops happening.
- Edge course migration on driveways. On sloped parcels where the base was never compacted deep enough for the grade, the outermost row of pavers starts walking outward. We see it on patios and driveways throughout the unincorporated east side of Highgrove. The fix is always the same: pull the edge course, re-excavate, recompact, reinstall with proper edge restraint. Patching without fixing the base is money wasted.
- Joint sand washout after winter rains. Lots in Highgrove without gutters or engineered swales send runoff straight across the paver surface. After one wet winter, the joints are bare and the pavers start shifting. We correct the drainage first, then refill the joints with Unilock-matching sand. Drainage first, always.
- Chipping at cut edges and step nosings on unshaded exposures. It’s not freeze-thaw here. It’s the UV and thermal cycling on full-sun patios and walkways. Units expand and contract, and the cut edges are where they fail. We see chipped nosings on Beacon Hill steps that face west all afternoon. Replacing a few units and sealing the cut faces usually stops it.
- Cracked or spalled units from base settlement. When a well or septic line means part of the excavated base couldn’t be compacted uniformly, you get a low spot, then a crack line. We see it on older ranch properties where previous work didn’t account for utility locations. We lift the section, fix the base, and relay matching units.
Unilock Service in Highgrove: What Local Conditions Mean for Your Equipment
Here’s the thing most paver contractors won’t mention until it’s too late. Highgrove is unincorporated Riverside County. That means paver driveways and patio hardscape here don’t go through a city building department. They go through Riverside County permitting and inspection, and the timelines and requirements are different from what your neighbor in Grand Terrace deals with. On top of that, a lot of Highgrove’s older ranch parcels rely on private wells and septic systems, not municipal utilities. Before we set a single paver, we need to know where the leach lines run and where the well head sits. On a recent job off the unincorporated east side, a failing Brussels Block driveway had been washing out for years because winter runoff was draining straight toward the well head. We pulled the migrated units, re-excavated the base to full depth, reset the edge restraint, and reinstalled with fresh joint sand graded so water moved away from the well, not into it. That’s not a detail you catch after the fact. It’s the whole job. A generic paver page won’t tell you that. We will.
Unilock Models & Products We Service in Highgrove
We work regularly with the Unilock lines that show up most in Riverside County: Brussels Block, Beacon Hill, Onyx, and the U-Cara retaining wall system. Brussels Block is the workhorse we see on driveways and walkways. Beacon Hill shows up on patios and pool decks. Onyx is the smooth-faced product people pick for a more contemporary look, and U-Cara is the segmental retaining wall we rebuild when block faces crack or the wall has started to lean. For repairs, we source genuine Unilock matching units and their recommended joint sand and edge restraint wherever they’re still available, so the patch blends with the field and holds through Highgrove’s heat and rain. If a specific unit has been discontinued, we match profile and thickness from a compatible quality line and tell you the difference before any work starts. We don’t bury substitutions in fine print.
See the difference
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AfterUnilock Service Pricing in Highgrove
Here are the three most common Unilock projects we bid around Highgrove, with the range you can expect based on lot size, access, and base conditions. If your job involves a lot of grading correction or drainage work, expect to land toward the higher end. A free estimate gets you the exact number.
| Project | Typical Range in Highgrove |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Driveway Replacement | $5,000 – $14,000 |
What drives cost on Highgrove lots more than anything else is what’s under the pavers. If we’re excavating six inches and compacting clean base on a flat lot, the job is straightforward. If we’re cutting around utility runs, re-grading for drainage, or tying into a septic leach field’s setback, the prep work grows. Every estimate we write is itemized, so you see the base work, the materials, and the labor separately. For Colton Unilock service or nearby, call (855) 382-3257 and we’ll walk the site with you. Estimates are free, and nobody will pressure you into anything.
Serving Highgrove, CA — Our Local Coverage Area
We’re based in the Highgrove area and know this community well, and we also handle Unilock repair in Loma Linda. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Unilock Construction in Highgrove
Yes, in most cases a paver driveway in Highgrove goes through Riverside County permitting and inspection, not a city building department. The scope of what the county requires depends on the lot size, the driveway’s slope, and how close the work comes to property lines or easements. We handle the permitting paperwork and coordinate the inspections as part of the job. Call (855) 382-3257 and we’ll tell you what your specific parcel triggers before any dirt moves.
Because runoff is moving across the surface faster than the joint sand can handle, usually on lots without gutters or proper swales. The water picks up the sand and carries it away, and then the pavers lose their interlock. We fix it by correcting the drainage first, then refilling the joints with the right sand and compacting it properly. On most Highgrove lots this is a one-and-done repair once the water is directed away from the paved area.
We can match the profile and thickness in almost every case, even when the exact unit has been discontinued. If the original Unilock line is still produced, we source matching units. If it’s not, we’ll bring you samples from compatible quality lines, show you the difference, and let you decide before we install anything. We won’t lay a mismatched patch and hope you don’t notice.
Highgrove’s intense summer sun causes thermal expansion and UV fading, especially on unshaded exposures facing west. Cut edges and step nosings chip more readily here than in cooler climates. The fix is often resealing the cut faces and replacing a few units, but if the base underneath is shifting too, a section lift-and-relay is the honest repair. We’ll tell you which one your patio actually needs.
Absolutely. On rural Highgrove parcels with private wells and septic, we have to locate the leach lines and well head before excavation, and the county setbacks will shape where a driveway or patio can go. Compaction around a leach field is limited, which means the base detail changes. This isn’t optional. We’ve seen driveways that failed because nobody accounted for a buried leach line. Get this checked before plans are drawn, not after. Call (855) 382-3257 for a site assessment.
Service Areas Near Highgrove
Toolbox Contractors serves Highgrove service area and the surrounding communities. We run jobs into San Bernardino, Colton, Muscoy, and Loma Linda on a regular basis. If you’re in one of those areas and looking for Unilock work, we cover Unilock service in Redlands and Unilock service in Fontana as well.
Book Your Unilock Service in Highgrove Today
If you’re ready to get a paver driveway, patio, or retaining wall scoped properly, call us at (855) 382-3257. We’ll come out, check the lot, look at the drainage, and give you a written estimate with real numbers. No call center. You’ll talk to someone who knows Highgrove dirt and provides Unilock service in Rubidoux too.
Written by Norm Castellano, Owner at Toolbox Contractors, serving Highgrove and the surrounding Inland Empire from San Bernardino.