Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Unilock Construction in Riverside, CA | Penhallow Remodeling
We install, repair, and re-level Unilock paver driveways, patios, and retaining walls across Riverside, and also offer Fontana Unilock service. The one thing that separates our Unilock work here from what you’d get anywhere else is that we build for expansive clay soil and triple-digit summer heat from the first compaction lift, not as an afterthought. If your Unilock driveway is heaving, rutting, or losing joint sand every season, call (936) 259-2607 for a written assessment.
We’re Unilock sales & service specialists in the sense that we’ve installed and repaired the brand’s product lines for years across Riverside’s oldest and newest neighborhoods. We’re an independent hardscape and masonry crew, not an authorized Unilock dealer, and not a manufacturer rep. That matters because we recommend what actually works on Riverside subgrade, not what a corporate catalog says should work.
Why Riverside Residents Choose Us for Unilock Service
Trevor Nash started Penhallow Remodeling after spending two decades on residential projects across Southern California, from hillside foundation work in the Valley to full kitchen overhauls in older Craftsman bungalows, working as a General Contractor in Riverside. He got tired of watching homeowners get handed vague estimates and vaguer timelines. So we write the price down before we move a single paver, and we put the guarantee in writing too.
We know Unilock’s product lines the way a mechanic knows a specific engine family. Brussels Block, Richcliff, Beacon Hill, Umbriano, Il Campo. We know which ones hold up on Riverside’s clay and which ones need a modified base spec to survive here. We carry a working inventory of base aggregate, geo-grid, edge restraint, and heat-stable polymeric sand locally, so a Riverside repair doesn’t wait on a freight shipment from a distribution hub in Ontario. Our technicians are background-checked and uniformed on every job, and a live person answers our phone 24/7, not an answering service.
Common Unilock Construction Problems We Solve in Riverside
- Heaving and rutting over expansive clay. Riverside’s clay soil swells with winter rains and shrinks in the long dry season. Sand-set Unilock pavers, especially Brussels Block driveways, pitch and settle as the subgrade moves. Joint sand is the first thing to wash out, then edges start drifting. We re-level small settled areas, and for widespread heave we tear out and re-base over compacted Class II aggregate with geo-grid reinforcement.
- Polymeric sand failure in 108 – 113°F heat. Standard polymeric sand cures too fast in Riverside’s summer temperatures, which causes it to crack and crumble before it ever fully sets. You end up with open joints by late August, and weeds and ants move in. We switch to a heat-stable polymeric sand blend on every Riverside install, and we re-sand existing jobs with it too.
- Leaning and bowing segmental retaining walls. Beacon Hill and Estate Wall systems lean when the base course sits on disturbed clay without geo-grid. We see this on older hillside yards across Riverside that were never engineered in the first place. The fix is a partial or full rebuild with a reinforced base, not just pushing blocks back into place.
- Efflorescence and UV color fade on light-toned pavers. The Inland Valley’s UV is relentless, and Riverside’s first winter rain cycle draws mineral salts to the surface of lighter Unilock lines like Umbriano and Il Campo. The white haze looks worse than it is, but it still bothers homeowners on the Wood Streets where curb appeal matters. We clean it properly and can apply a compatible sealer when needed.
- Mismatched repair patches. A cracked or settled section of a Unilock driveway often gets patched with a different color or profile by a previous contractor because the original line was discontinued or they just didn’t bother to source the right unit. We source genuine Unilock units when the color and profile are still in production so the repair matches the existing field.
Unilock Service in Riverside: What Local Conditions Mean for Your Equipment
Here’s the Riverside-specific reality that shapes every Unilock job we do. If your property sits in the Mission Inn corridor or the Wood Streets, any visible hardscape change, including a Unilock driveway or rear patio, can trigger Riverside’s Historic Preservation Board review on top of standard building and subgrade engineering requirements. That’s a materials-compatibility review, not just a permit counter stamp. A Unilock driveway off Bandini Avenue might need board sign-off that the paver color and profile match the era of the house. Contractors in Corona or Unilock in San Bernardino almost never face this layered approval, which is why a hardscape crew that only works newer subdivisions gets lost when the board asks for a compatibility statement. We’ve been through that review process. On a Wood Streets Craftsman bungalow, we tore out a heaved sand-set driveway where Brussels Block had shifted over clay and the polymeric joints had crumbled from summer heat. We re-based with compacted Class II aggregate and geo-grid, re-set the Brussels Block, switched to a heat-stable polymeric sand, and the Preservation Board signed off because the same color and profile matched the house’s era. That’s the job, and we know how to run it.
Unilock Models & Products We Service in Riverside
We install and repair the Unilock lines that actually get used on Riverside properties. Brussels Block is the classic tumbled paver, and it’s still the most common driveway material we see on older homes. Richcliff is the larger-format plank look that works well on modern driveways in Orangecrest and La Sierra. For retaining walls, we handle Beacon Hill and Estate Wall systems, including rebuilds when the base has failed. On the heat-reflective side, Umbriano and Il Campo surface pavers show up on patios and pool decks, though they need the right joint sand to survive a Riverside August.
We source genuine Unilock units for any repair where the color and profile are still in production, so a patch blends with the existing field instead of standing out. For the concealed layers, base aggregate, geo-grid, edge restraint, and polymeric sand, we use quality aftermarket materials selected for Riverside’s specific thermal and moisture cycles. We stock the common stuff locally so a standard repair doesn’t have to wait on a truck from a warehouse across the county.
Unilock Service Pricing in Riverside
We write the number down before we start. No verbal ballpark, no estimate range handed over as a guess. Here’s what Unilock hardscape work costs in Riverside, based on the jobs we’ve completed across the city:
| Service | Price Range |
|---|---|
| Paver Driveway Installation (Unilock) | $7,000 – $18,000 |
| Paver Patio Installation (Unilock) | $3,500 – $11,000 |
| Concrete Driveway Installation | $4,500 – $12,000 |
| Driveway Replacement | $5,000 – $14,000 |
What moves the number is square footage, subgrade condition, whether we’re tearing out an old base or starting fresh, and whether the Historic Preservation Board needs a materials review. A free estimate means we walk the site, look at the clay, measure the slope, and hand you a written line-item price. Call (936) 259-2607 to schedule yours.
Serving Riverside, CA - Our Local Coverage Area
We’re based in the Riverside area and know this community well, and we also provide Unilock service in Moreno Valley. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs – Unilock Construction in Riverside
Yes, in most cases you will. Visible hardscape in the Mission Inn corridor and Wood Streets falls under Riverside’s Historic Preservation Board review, which means a Unilock driveway or patio in those blocks can require a materials-compatibility review on top of the standard subgrade and building permits. The board wants to see that the paver color and profile match the era of the house. We’ve navigated that process on multiple projects, including a Wood Streets bungalow where the board approved the same Brussels Block profile because it matched the home’s Craftsman style. Call (936) 259-2607 and we’ll tell you what your specific property triggers.
Because Riverside sits on expansive clay soil that swells with winter rain and shrinks during the long dry season, and a sand-set paver base can’t stay stable when the subgrade below it is constantly moving. The joint sand washes out first, then the edges start shifting. For a small settled area, re-leveling and re-sanding is the honest repair. For widespread heaving over failing clay subgrade, full tear-out and re-base is the only lasting fix. Call (936) 259-2607 and we’ll tell you which one your driveway needs.
Yes, and it’s a failure we see every August. Standard polymeric sand cures too fast in Riverside’s extreme heat, which leaves it cracked and crumbled before it fully sets. Open joints follow, then weeds and ants. We use a heat-stable polymeric sand blend on every Riverside job specifically because of this. If your joints are already failing, a re-sand is usually a one-day fix. Call (936) 259-2607 for a quote.
A Unilock paver driveway in Riverside typically runs $7,000 to $18,000, and a paver patio runs $3,500 to $11,000, depending on square footage, subgrade condition, and whether we’re tearing out an existing base. Concrete driveways run $4,500 to $12,000. The number gets written down before any work starts, and it’s the number on the invoice. Call (936) 259-2607 for a free written estimate.
Yes, we source genuine Unilock units when the color and profile are still in production, so the repair blends with the existing field instead of standing out like a patch. If the line has been discontinued, we’ll tell you that up front and show you the closest compatible option before we do anything. Call (936) 259-2607 and we’ll take a look.
Service Areas Near Riverside
We serve Riverside and the surrounding Inland Empire communities. Along with our Riverside service area, we take Unilock jobs in Corona, Moreno Valley, Ontario, and San Bernardino. For homeowners further into Southern California, we also provide Unilock service in Irvine and Unilock service in Santa Ana.
Book Your Unilock Service in Riverside Today
If your Unilock pavers are heaving, losing sand, or just looking tired, call (936) 259-2607. We’ll walk the site, write down the price, and explain exactly what the repair or replacement involves before you commit to anything. Give me the whole picture first, then we pick up the tools.
Written by Trevor Nash, Owner at Penhallow Remodeling, serving Riverside since 2004 under the Kingswell standard.







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