Unilock Driveway & Pavers Nationwide

Unilock Driveway & Pavers: The Pomona Owner’s Guide

We stock and install Unilock-compatible driveway pavers across Pomona, with most paver driveway replacement projects running $7,000-$18,000 installed depending on pattern complexity and base condition. A full Unilock paver reset or section repair typically runs $2,500-$6,500 in the Pomona market, and we carry Beacon Hill Flagstone, Hollandstone, and Thornbury inventory on our trucks for same-day patch work when the base is sound. Most Pomona owners notice the problem after the first heavy rain of winter, when water starts pooling where it never used to, or when a tire catches the edge of a settled paver and pops it loose.

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Which Unilock Models This Applies To

Unilock’s residential driveway lines break into three tiers that handle Pomona’s clay-heavy soils and summer heat differently. The EnduraColor architectural lines, Beacon Hill Flagstone and Thornbury, use a two-layer press with a finer aggregate face and coarse structural base; the part number is stamped on the pallet tag and molded into the spacer bar on every tenth paver. The classic pressed lines, Hollandstone and Brussels Block, are single-layer and more forgiving of minor base shifts, but they fade faster under UV exposure in inland Southern California. The permeable lines, Eco-Priora and Turfstone, require specific bedding chip gradation, ASTM No. 8 stone, not the No. 57 that works under standard pavers. Mixing the bedding layer is the compatibility gotcha we see most often: a crew installs a beautiful Eco-Priora driveway on the wrong base, and two years later the joints clog with Pomona’s fine windblown dust.

We source direct from Unilock’s Ontario distribution yard, not through a third-party broker, which means we can match dye lots from 2022 forward by batch code. For pre-2020 installations, we pull a sample and cross-reference to current production; the color drift on Brussels Block “Sierra” between 2018 and 2024 is noticeable enough that we flag it in writing before ordering. Aftermarket equivalents exist from Belgard and Techo-Bloc, but the dimensional tolerances differ by 1/16 inch, enough to throw off a running bond pattern over twenty feet. We stock OEM Unilock for repairs under 200 square feet and quote aftermarket only when the customer requests it.

Signs Your Unilock Driveway & Pavers Is Failing

• Water pooling in sections that used to drain clean. The open-graded base has settled or the bedding sand has washed out, breaking the interlock that lets pavers shed water as a system. In Pomona’s winter storm pattern, a single clogged channel can saturate the subgrade and accelerate the failure.
• Individual pavers rocking under foot or tire. This means the bedding layer has eroded beneath that unit, often from a sprinkler head misaligned to spray directly at the joint. The paver itself is usually intact; the part that failed is the 1-inch screeded sand bed underneath it.
• Joint sand blowing out and weeds establishing. Polymeric sand breaks down after 7-10 years in Pomona’s UV and heat cycles. Once the joint voids exceed 1/4 inch, the interlock is compromised and the edge restraints start taking lateral load they weren’t designed for.
• Edge restraints pulling away from the border course. Spiked plastic edging rots in irrigated soil; steel edging rusts through where the powder coat gets nicked during install. Either way, the border course loosens and the field pavers migrate outward.
• Efflorescence that doesn’t clean off with a mild acid wash. White haze from calcium hydroxide migration is normal in new concrete pavers for 6-12 months. Persistent efflorescence after year two signals moisture trapped in the base, usually from a failed separation fabric or inadequate drainage slope.

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Replacement Cost & What’s Included

Full Unilock paver driveway replacement in Pomona runs $7,000-$18,000, with the spread driven by three factors: square footage, pattern complexity, and base condition. A straight herringbone on sound class II base stays toward the lower end; a multi-radius Brussels Block pattern with full excavation and geogrid reinforcement pushes the upper. We itemize every line in the written quote: demolition and haul-off, base import or recompaction, bedding sand, pavers by the square foot, polymeric sand, and edge restraint by the linear foot. No lump-sum mystery.

Section repair, typically 100-400 square feet of reset or replacement, runs $2,500-$6,500. This includes lifting the affected pavers, regrading and recompacting the base, replacing bedding sand, reinstalling or matching new pavers, and regrouting with polymeric sand. Under Clause 1 of the Haven Standard, that price is fixed before we start; if we find deeper base failure during lift, we document it with photos, write a change order with the exact additional cost, and nothing proceeds until it’s signed. Our 365-Day Done Right Promise covers the workmanship; paver material defects fall to Unilock’s limited lifetime warranty, which we register on the customer’s behalf.

DIY or Call Us?

A homeowner can safely assess what’s failing: lift one paver at the edge with a flat pry bar, photograph the base layer, and check whether the bedding sand is still granular or has turned to mud. What you can’t do safely or effectively is recompact a 6-inch aggregate base without a plate compactor and a moisture meter, or screed bedding sand to 1-inch ±1/8 inch by eye. The interlock that makes a paver driveway structural, not decorative, depends on uniform support; a soft spot the size of a dinner plate will telegraph through and crack the paver above it within a season.

We carry plate compactors, laser levels, and Unilock inventory on every driveway truck. Measure twice, then we can talk. Call (626) 606-1081 to schedule your free estimate; we’ll lift a test paver, show you the base condition on camera, and deliver a written price before anyone picks up a tool.

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