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Unilock Construction in Rialto, CA | Alder Contractors
We install and repair Unilock paver and retaining wall systems across Rialto as an independent hardscape contractor, with Unilock service in Bloomington available as well. We buy the product, build the base, and stand behind the labor. What sets our Unilock work apart here is that we design for Rialto’s shrink-swell clay and Santa Ana wind scouring, not just what looks good in a catalog. Call (833) 467-7020 for a free estimate on any Unilock project, from a re-laid driveway to a new paver patio.
Why Rialto Residents Choose Us for Unilock Service
Nelson Ibarra grew up along the Willow Avenue corridor here in Rialto, and he has spent the better part of three decades working on the homes that define this city. That means we know what happens to a paver driveway when a BNSF freight train rumbles past a few hundred feet away, or what a Santa Ana blow does to open paver joints on a wind-exposed corner lot. We are not a manufacturer showroom. We are a general contractor that installs Unilock systems and backs the work with a labor warranty. Since we are not tied to Unilock as an authorized dealer, we will tell you straight when a repair holds and when you need a full tear-out and re-lay. That honesty is what keeps our schedule full in Rialto.
We also bring the whole-home perspective most hardscape-only crews lack. When we fix a settled paver apron at the garage, we check the grading, the downspout discharge, and the slab transition at the same time. One contractor, every phase. Do it right the first time – the callback always costs more than the extra hour up front.
Styles & brands we work with







Common Unilock Construction Problems We Solve in Rialto
- Base failure before paver failure. Rialto’s shrink-swell clay expands and contracts through long dry spells and sudden wet winters. When an original builder compacted a thin aggregate base over that clay, the field heaves and ruts within the first wet season. The pavers themselves are fine – the base is the problem. We over-excavate the clay, re-compact to a heavier depth, and re-lay the same units.
- Santa Ana wind-starved joints. Dry wind events scour the fine joint sand right out of paver fields on wind-exposed Rialto driveways and side yards. Left unfilled, the pavers shift, chamfers wear, and weeds take root. We re-sand with Unilock’s own joint material and, on repeat-offender lots, we recommend a wider or denser joint detail.
- Cracked retaining wall blocks on clay. Rialto’s block walls and paver edges crack along the undersides of tumbled units when the original edge restraint was too shallow for the slab movement the clay produces. We see this especially with Beacon Hill block walls whose top courses have fractured. We rebuild those courses on corrected, deeper footings.
- Settled slab-edge and apron transitions. Where a paver driveway meets an older concrete approach, the concrete typically sits still while the paver field settles. The result is a lip-and-trip at the transition and water ponding against the garage door. We cut out the failed section and rebuild the transition so it drains away from the structure.
- Truck-turning damage on rail-corridor streets. Rialto’s distribution warehouses along the I-210/I-15 corridor push heavy truck traffic through residential-edge streets. A paver driveway that would hold fine three streets deeper in the tract gets rutted and pushed around by turning loads. We spec a heavier base and edge restraint on those lots from day one.
Unilock Service in Rialto: What Local Conditions Mean for Your Equipment
Rialto’s own BNSF and Union Pacific rail yard, plus the distribution warehouses stacked along the I-210/I-15 corridor, feed a constant stream of heavy trucks through residential-edge streets. That means a paver driveway or apron near those routes takes loads and turning traffic that a typical tract driveway a few streets deeper never sees. When we build in the neighborhoods around the rail corridor, we run a heavier aggregate base and a deeper edge restraint than a standard residential detail calls for. We also document grading and drainage because local inspectors here want seismic anchoring and drainage records on anything tied to a structure. A paver patio behind a house on a quiet cul-de-sac does not need that heavy spec. A driveway on Riverside Avenue or near the warehouse feeder streets absolutely does. That is the difference between an installer reading a generic spec sheet and a contractor who has worked this city for thirty years.
Unilock Models & Products We Service in Rialto
We install and repair the Unilock lines most common in Rialto backyards and driveways. Brussels Block is the tumbled, dimensional paver we set most often – it holds its face well but still needs proper joint sand here. Beacon Hill is our go-to tumbled retaining wall block for clay lots, especially when we rebuild the two-course segments that cracked on original footings. We also service older Uni-Stone and Uni-Decor fields, plus Treo permeable pavers where Rialto’s infrequent but intense rain events justify managing runoff at the surface. We set Unilock’s own edge restraints, joint sand, and wall components rather than substituting hardware-store equivalents. The system holds because the pieces lock together the way the manufacturer designed them to.
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AfterUnilock Service Pricing in Rialto
What drives cost on a Rialto Unilock job is the condition of the base, not the price tag on the pavers. A settled field over failed clay base costs more to correct than a fresh install on clean soil, because we are digging out what never worked in the first place. Every free estimate includes a walk of the site, a check of the grading and drainage, and a written line-item quote. Here are the ranges you can expect.
| Service | Price Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Driveway Replacement (paver re-lay over failed flatwork) | $5,000 – $14,000 |
| Driveway Sealing | $250 – $700 |
Call (833) 467-7020 for an exact quote on your property – estimates are free, and we will tell you honestly whether your existing field can be repaired or needs a full rebuild.
Serving Rialto, CA — Our Local Coverage Area
We’re based in the Rialto area and know this community well, and we also offer Unilock in San Bernardino. Use the map below to see our full service coverage — if you’re nearby, we can almost certainly help.
FAQs – Unilock Construction in Rialto
The base has failed, not the pavers. Rialto’s shrink-swell clay expands and contracts through dry heat and wet winters, and a thin original base settles unevenly. We over-excavate the clay, re-compact a heavier aggregate base, and re-lay your existing units. Call (833) 467-7020 for a free assessment.
Yes. Driveways near the rail yard and distribution warehouses along I-210/I-15 take turning loads and heavy traffic that a quiet tract street never sees. We spec a heavier base and deeper edge restraint on those lots, and we document drainage for inspection. If you need Fontana Unilock service, call (833) 467-7020 and tell us where you are – we will build to the load, not the brochure.
Beacon Hill tumbled block set on an over-excavated, re-compacted footing works well here. The failures we see are almost always the original footing being too shallow, not the block itself. We rebuild on corrected base and the wall stays put. Call (833) 467-7020 for a look at your existing wall before you tear it out.
Not always. If the concrete slab is structurally sound and the grade works, we can sometimes lay over it with proper drainage adjustments. If it is cracked, heaved, or pitched toward your foundation, we cut it out and start clean. Call (833) 467-7020 and we will tell you which path your driveway needs.
Re-sand with Unilock’s own joint material as soon as you notice joints going empty, and we can adjust the joint detail on wind-exposed Rialto lots to hold sand longer. Starved joints lead to shifting pavers. Call (833) 467-7020 for a re-sand quote before the next big blow.
Service Areas Near Rialto
We serve Rialto and the surrounding San Bernardino Valley communities, including Bloomington, Muscoy, Fontana, Colton, San Bernardino, and Grand Terrace. If you are in one of these areas and need Unilock work, call (833) 467-7020 to confirm coverage. We also offer Unilock sales & service throughout our broader service territory, and you can find Rialto service area details here. For Unilock work further afield, we provide Unilock service in San Joaquin Hills and Unilock service in Westminster.
Book Your Unilock Service in Rialto Today
If your Rialto driveway ruts, your patio settles, or your block wall cracks along the clay, call (833) 467-7020 — we also handle Unilock repair in Muscoy. We will walk the site, tell you what is actually wrong, and quote the fix. Free estimates, written line-items, and a crew that knows this city’s dirt.
Written by Nelson Ibarra, Owner at Alder Contractors, serving Rialto since the early 1990s.