







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Why West Covina Homeowners Choose Unilock Construction
We provide independent Unilock paver installation, repair, and restoration across West Covina, with hands-on experience spanning the full lifecycle of their concrete and natural stone systems. What sets our Unilock work apart is that we diagnose the base and edge restraint first, not just the surface paver, because that’s where most West Covina failures actually begin. We’re an independent Unilock service in West Covina, not an authorized dealer or franchise, which means we answer to you, not a manufacturer’s sales quota. Call (707) 760-7579 to schedule a free estimate for any Unilock project.

West Covina’s hillside lots, expansive clay soils, and Santa Ana wind cycles put real stress on paver systems, and we’ve seen how Unilock products hold up under those conditions over years, not just seasons. Whether you need a new paver patio, a driveway replacement, or repairs to an existing Unilock installation, we bring the same written pricing and verified-crew standard to every job.
Why Trust Mason Remodeling Co West Covina for Your Unilock Construction?

Unilock pavers are a premium product, and they deserve a crew that understands what’s happening beneath them. Our technicians have installed and repaired Unilock EnduraColor, Umbriano, Town Hall, and Richcliff pavers throughout West Covina, from flatland subdivisions near Eastland Center to hillside streets above I-10 where clay soil shifts seasonally. We know these product lines by their joint tolerances, their color-fastness characteristics, and their specific failure modes.
Isaac Pruett, owner of Mason Remodeling Co West Covina, grew up in Los Angeles and trained through the construction technology program at Los Angeles Trade-Technical College before decades of General Contractor services across the San Gabriel Valley. That means when we tell you a Unilock base needs re-compaction rather than a full tear-out, it comes from experience, not a script. Every crew member who arrives at your door is background-checked, identity-verified, and introduced by name and photo before the visit under the Threshold Standard. You should know what you’re getting before we ever pick up a tool.
We carry OEM-compatible subsurface components and source genuine Unilock pavers through local distributors for color-matched additions. And because we’re an independent Unilock service provider, we’re free to recommend the repair that serves you best, even when that means replacing a single paver instead of selling you a new patio.
Styles & brands we work with







Common Unilock Construction Problems We Fix in West Covina
- Edge restraint failure at driveway aprons. The most common Unilock issue we see in West Covina, especially on hillside lots, is edge restraint pull-out. Driveway aprons take concentrated vehicle load, and when the plastic or steel edging shifts or separates, pavers begin to spread and the outside rows loosen. We remove affected units, reset the restraint with deep spikes, re-compact, and re-lay the pavers so the edge holds under repeated traffic.
- Polymeric sand erosion in patios. West Covina’s occasional heavy downpours, combined with our long dry spells, push water through paver joints and wash out polymeric sand. Once joints empty, pavers lose lateral support and start to shift. We saw this on a Town Hall paver patio near Eastland Center where the owner had re-sanded twice in three years using a big-box product. Proper joint stabilization starts with clean, deep joints and the right sand grade for the paver type.
- Efflorescence on Richcliff pavers. That white, chalky haze on Richcliff surfaces is efflorescence, caused by moisture wicking up through the concrete paver and carrying mineral salts to the surface. West Covina’s wet winter followed by hot, dry summer cycles makes this worse. It’s often cosmetic, not structural, but it takes the right cleaning approach to remove without damaging the paver’s surface finish.
- Settling over improperly compacted base rock. Many original Unilock installations in West Covina, particularly on mid-century homes built between 1950 and 1980, sit on underspecified or loosely compacted AB3 gravel. Over time, that base settles unevenly, creating birdbath low spots that hold standing water and invite weeds. We diagnose this with a level and a probe, then decide whether localized re-compaction and paver re-laying will fix it, or whether the base needs full replacement.
- Paver shifting on sloped drives. On hillside lots above the freeway, driveways face constant gravitational pull plus vehicle braking force. Without proper base depth and edge restraint, Unilock pavers gradually creep downhill. We correct this with deeper base compaction, commercial-grade geotextile fabric, and upgraded aluminum edge restraints that won’t pull away from landscape beds.
Unilock Parts & Our Repair-vs-Replace Approach

For Unilock paving systems, we use genuine Unilock pavers sourced through local distributors whenever a color-matched addition or replacement unit is needed. That matters because Unilock’s color blends are proprietary, and a close-match from a different manufacturer will be visible the moment it’s installed. For subsurface components like geotextile fabric, base rock, and edge restraints, we use commercial-grade parts that meet or exceed manufacturer specifications. These are not “cheap substitutes”; they’re the same class of materials specified in Unilock installation guidelines.
Our repair philosophy is straightforward: when a Unilock paver is cracked but the base beneath it is sound, we replace only the damaged unit and re-sand the joints. When the base has failed, meaning settlement has occurred or drainage is compromised, we recommend localized re-compaction and paver re-laying rather than a full tear-out. Full replacement is sometimes necessary, but it’s never our first suggestion. Call (707) 760-7579 and we’ll tell you honestly which path fits your situation.
Our Unilock Service Process – Step by Step
- 1
Diagnosis. We start by walking the entire paver area with you, checking edges, joints, drainage, and base condition. For Unilock systems, we probe for settlement depth and look for the specific failure patterns we’ve documented across West Covina, from edge pull-out to sand erosion.
- 2
Repair or install. We document the written price before any work starts. Then we execute the repair or installation using proper base compaction, edge restraint, and paver placement techniques specific to the Unilock product line you have, whether it’s EnduraColor, Town Hall, Richcliff, or Umbriano.
- 3
Testing. After installation, we run water over the surface to check drainage, walk the joints to confirm stability, and inspect the edges under load where applicable. We don’t call it done until the paver field is tight and true.
- 4
Warranty walk-through. Every completed Unilock project is covered by our written guarantee with clearly stated terms, and you receive a free return visit if any repair or installation fails within 365 days from the completion date. That’s the Done Right Promise, in writing.
See the difference
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AfterUnilock Products We Service & Install in West Covina
We service and install the full range of Unilock concrete and natural stone paver systems, including the EnduraColor Series (known for its fade-resistant surface layer), the Umbriano Series (a granite-look paver with a non-slip finish), the Town Hall Series (a classic brick-style paver popular on West Covina driveways), and the Richcliff Series (a large-format paver with a natural flagstone look). We stock jointing sand, edge restraints, and base materials locally for fast turnaround, and source pavers directly from Unilock distributors when your project requires specific color blends or product lines. Our crews handle paver patios, paver driveways, walkways, pool decks, and driveway replacement projects throughout West Covina.
We Also Service These Brands
While Unilock in San Dimas and West Covina is a focus of our hardscape work, we’re experienced across multiple specification-grade brands including KraftMaid cabinetry, Cambria and Silestone surfaces, and Kohler fixtures. This matters when a West Covina homeowner is coordinating a paver project alongside a kitchen or bath remodel. One crew, one standard, one written price across the whole job.
FAQs – Unilock Construction Service in West Covina

Yes, in most cases we can match an older Unilock color by sourcing from distributor overstock or using a blend of current colors that matches the original. The key is clean sampling, and we handle that for you. Call (707) 760-7579 with your paver’s series and approximate age, and we’ll start the match process.
The usual causes in West Covina are shallow joints, insufficient edge restraint, or the wrong sand grade for your paver type. Our rainy season pushes water through joints hard, and if the joint is too shallow or the sand wasn’t activated properly at install, it washes out. We re-sand with the correct product for Unilock’s joint profile and verify edge restraint so it doesn’t happen again in twelve months.
No. If the base beneath the cracked paver is sound, we replace only the damaged unit and re-sand the surrounding joints. Full replacement only makes sense when the base itself has failed across a wide area. We’ll probe the area and show you what’s actually happening before you commit to anything.
Sloped lots require deeper base preparation, commercial-grade geotextile fabric, and upgraded edge restraint to hold pavers against gravity and vehicle braking force. On the hillside streets above I-10, we regularly compact bases deeper than flatland installs and use aluminum restraints with longer spikes. The math changes with grade, and we account for it in the written price.
Yes, in our experience a Unilock paver driveway typically commands a premium over poured concrete in West Covina resale, because of the curb appeal and the individual-paver repairability. The value holds especially well on mid-century homes where a textured paver drive complements the era’s aesthetic better than a gray slab. A paver driveway installation here runs $7,000 to $18,000, and homeowners see that as an investment, not just a surface.
No, we are an independent Unilock service in Pomona and West Covina, not an authorized dealer or manufacturer representative. That independence lets us recommend the repair that serves your budget and your property, including single-paver replacements and localized base fixes, without pressure to sell full replacements. We source genuine Unilock pavers through official distributors when color-matching is required.
Unilock paver patio installation in West Covina typically runs $3,500 to $11,000 depending on size, base conditions, and access. A full paver driveway installation ranges from $7,000 to $18,000, and driveway replacement falls between $5,000 and $14,000. Call (707) 760-7579 for an exact quote, estimates are free and always written before work begins.
| Service | Price Range |
|---|---|
| Paver Patio Installation | $3,500 – $11,000 |
| Paver Driveway Installation | $7,000 – $18,000 |
| Driveway Replacement | $5,000 – $14,000 |
Book Your Unilock Service in West Covina, CA
Call (707) 760-7579 to schedule your free Unilock estimate in West Covina. We’ll send you the name and photo of your technician before the visit, put the price in writing before any work starts, and stand behind the finished job for 365 days.
Written by Isaac Pruett, Owner at Mason Remodeling Co West Covina, serving West Covina since 2004.


