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Unilock Construction in Colton, CA | Stallion Contractors
We install and repair Unilock pavers, retaining walls, and hardscape systems across Colton, CA as an independent contractor. We know how Unilock products actually perform on Colton’s split terrain – flat postwar tract lots in the core, and steep expansive-clay hillsides in La Loma and Reche Canyon. Most companies pick one or the other. We work both, and that changes how we build. Call (855) 600-3192 for a free estimate on your Unilock project.

Why Colton Residents Choose Us for Unilock Service
Ruben Montoya grew up in Colton, not far from Pepper Avenue, where half the houses on his block were built by tradesmen who knew Inland Empire soil and sun better than anyone. He picked up his foundation in construction at San Bernardino Valley College, where the hands-on programs put him on job sites before he ever had a business card. Over two-plus decades working in and around Colton, he’s built a reputation for structural honesty – no shortcuts on base prep, no material swapped to pad a margin.
That background matters when we set Unilock product. We’re independent, not a manufacturer-authorized dealer, which means we recommend what a specific lot actually needs. We stock Unilock units, edge restraints, caps, and adhesives so repairs match the original field. And we’ll tell you straight when a paver field can be re-leveled and re-sanded instead of torn out. That’s not catalog talk. That’s two decades of watching how Unilock pavers and Pisa2 walls behave through Colton summers and Santa Ana wind seasons. See our Unilock sales & service page for the full scope of what we handle.
Styles & brands we work with







Common Unilock Construction Problems We Solve in Colton
- Efflorescence and joint-sand washout on Brussels Block and Il Campo surfaces. Colton’s hot, dry summers pull moisture through pavers, leaving white salt bloom behind, and the first intense winter rain flushes under-filled polymeric sand out of low-slope driveway aprons. We re-sand with properly compacted joint material and address the drainage that caused the washout in the first place.
- Edge restraint failure and paver creep on sloped hillside lots. La Loma and Reche Canyon lots sit on expansive clay. When the edge restraint is shallow or the base is under-built, the whole field starts to walk downhill after a wet winter. We reset the restraint, over-excavate where needed, and rebuild the field so it stays put.
- Pisa2 wall settlement or bulging on hillside cuts. We see this on Reche Canyon properties where geogrid wasn’t stepped back into the cut correctly, or drainage gravel was skimped. Hydrostatic pressure during intense storms pushes the wall face out. We rebuild the wall with proper grid, drainage, and compaction.
- Surface staining and sealant failure on paver patios and walkways. Drip-line runoff off hot stucco walls and heavy sealers applied too early or too thick both break down fast under Colton’s 100°F-plus summers. We strip, clean, and re-seal with the right product for the exposure.
- Base failure under driveways on flat postwar lots. The 1940s-to-1970s tract core has older slab and asphalt driveways that weren’t built for paver loads. When a new Unilock driveway goes in without removing the old base or adding proper aggregate, it settles within a few years. We do it right the first time – full excavation, compacted base, proper slope for drainage.
Unilock Service in Colton: What Local Conditions Mean for Your Equipment
Colton is not one city from a grading standpoint. The flat core, much of it built as railroad worker housing and postwar single-story stucco tract homes, has one set of conditions. The southern knolls – La Loma, Reche Canyon – have another entirely. Those hillside lots sit on expansive clay that swells when wet and shrinks when dry, and the city’s grading and drainage plans get extra scrutiny because a bad hillside install affects the property below you, not just your own yard. That’s not equally true a few miles west in flat Rialto or Bloomington. It’s specific to the southern edge of Colton where the terrain rises.
What that means for a Unilock paver driveway or a Pisa2 retaining wall is this: the same install that’s routine on a flat postwar lot in the Colton core needs engineered over-excavation, geogrid, and drainage on a La Loma hillside. Skip the engineering and you’ll have a heaved field and a creeping edge within two winters. Ruben Montoya grew up watching contractors cut corners on these exact lots, and his father was a finish carpenter – which is partly why he still pays more attention to the final ten percent of a job than most contractors pay to the first ninety. Good work doesn’t need a sales pitch – it needs the right materials and someone who knows what they’re doing.
Unilock Models & Products We Service in Colton
We install and repair the Unilock lines that dominate Colton driveways, patios, and hillside walls: Brussels Block (tumbled, dimensional paver), Beacon Hill (flagstone-style paver), Onyx and Il Campo (smooth and tumbled modular pavers), and Pisa2 (retaining wall system).
Our parts approach is simple. We use Unilock’s own units, matching edge restraints, caps, and adhesives so any repair blends into the existing field. No mismatched aftermarket blocks in a visible area. For common repairs around Colton, we keep Unilock units and joint material locally accessible so turnaround stays fast. On existing hardscape, we’ll honestly re-level, re-sand, replace individual units, and reset restraint rather than tear out a sound field. We only recommend full replacement when base failure or wall movement is structural. We cover all of Colton’s 92324 service area. See our Colton service area page for neighborhoods and streets we work regularly.
See the difference
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AfterUnilock Service Pricing in Colton
Here’s what Unilock-related work runs in Colton’s market. These are line-item ranges for planning, not a bid – your exact number depends on lot slope, access, soil condition, and how much base work the site needs.
| Service | Colton Price Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Driveway Replacement | $5,000 – $14,000 |
| Concrete Driveway Installation | $4,500 – $12,000 |
| Asphalt Driveway Paving | $3,500 – $9,000 |
| Driveway Sealing | $250 – $700 |
The biggest cost driver in Colton is base work. A hillside La Loma driveway with expansive clay needs over-excavation, geogrid, and drainage – that adds material and labor over a flat-lot install. Our free estimate includes a site walk, soil and slope assessment, and a written line-item quote. Call (855) 600-3192 to schedule one.
Serving Colton, CA — Our Local Coverage Area
We’re based in the Colton 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 Colton
Yes, if the base is engineered for it. Expansive clay swells and shrinks with moisture, so the base needs over-excavation, compacted aggregate, geogrid when the slope demands it, and a proper concrete toe restraint. Cut those steps and the field will creep or heave within a few winters. We’ve rebuilt La Loma driveways that failed exactly this way. Call (855) 600-3192 and we’ll tell you what your lot needs.
Colton’s 100°F-plus summers and Santa Ana winds dry out joint sand and stress sealers, while intense winter rain drives hydrostatic pressure against walls and walks out under-filled joints. Efflorescence, joint erosion, and wall bulge are the three most common failures we see. The fix is better base and drainage work, not just surface treatment.
Usually, yes. If the base is sound and the problem is surface settlement, joint washout, or edge restraint failure, we re-level the field, re-sand the joints, replace individual units as needed, and reset the restraint. Full replacement only makes sense when the base itself has failed or a wall has moved structurally. We’ll show you what we’re seeing before we quote either direction.
Yes. Colton’s building department pays close attention to hillside grading and drainage plans in La Loma and Reche Canyon, and so do we. We prepare plans that account for expansive soil, runoff control, and slope stability, and we manage the permit process through inspection. You’re not left holding paperwork or an unpermitted wall.
We do, and we do them with the full engineering the terrain demands: stepped-back geogrid, drainage gravel behind the wall, proper compaction, and a wall height suited to the slope. Pisa2 is a solid wall system, but it only performs when the site prep is right. Call (855) 600-3192 for a site visit and a straight answer on what your hillside needs.
Service Areas Near Colton
We serve Colton’s 92324 zip and surrounding Inland Empire communities, including Bloomington, Mentone, Loma Linda, Redlands, and San Antonio Heights. For Unilock work in nearby cities, see Unilock service in Bloomington and Unilock service in Mentone.
Book Your Unilock Service in Colton Today
Whether you’re planning a new paver driveway, repairing a Pisa2 wall, or just want an honest assessment of what your existing hardscape needs, call Ruben Montoya and the Stallion Contractors team at (855) 600-3192. Free estimates, no pressure, straight answers.
Written by Ruben Montoya, Owner at Stallion Contractors, serving Colton and the Inland Empire.