Unilock Driveway & Pavers Nationwide

Unilock Driveway & Pavers: The Campbell Owner’s Guide

Unilock driveway and paver repair in Campbell typically runs $5,000-$14,000 for full replacement, while targeted paver resetting or base repair starts around $800-$2,500. We stock Unilock-compatible pavers and installation materials, and we can usually assess your project within 48 hours. Most Campbell homeowners discover their Unilock surface is failing when they notice pooling water after rain, wobbling stones underfoot, or weeds pushing through joints that used to stay tight - signs that the bedding layer or edge restraints have given way beneath the visible surface.

Call (831) 704-1211

Which Unilock Models This Applies To

Unilock’s residential driveway lines break into a few distinct series, and matching the right replacement material matters for both structural performance and visual consistency. The Beacon Hill Flagstone series, Richcliff with its embossed surface, and the permeable Tribeca Cobble are the three we see most often in Campbell’s established neighborhoods like the Pruneyard area and along Bascom Avenue corridor. Each carries a specific thickness - typically 60mm for standard vehicular loads, 80mm for heavier use - and a proprietary color blend that shifts slightly between production runs.

To identify your existing Unilock product, flip a loose paver and check for the molded manufacturing date and series code on the underside. If your installation is pre-2015, the color palette may have shifted; Unilock reformulated several dye lots around 2016-2017, so a direct OEM match sometimes requires a full section replacement rather than spot repair. We source both current OEM Unilock inventory and matched aftermarket equivalents from Belgard and Techo-Bloc when the original line has been discontinued. The aftermarket route saves 15-25% on material cost, though we note the substitution in writing per Clause 1 of the Haven Standard so you know exactly what you’re getting.

Signs Your Unilock Driveway & Pavers Is Failing

• Sinking or tilting pavers in isolated patches. This usually means the bedding sand has washed out or the compacted base (we call it the aggregate sub-base, typically Class II road base in Campbell) has settled unevenly, often from water intrusion through a failed joint.
• Standing water that lingers more than a few hours after rain. Unilock permeable pavers should drain through; if water pools, the joint aggregate is clogged with sediment or the underlying stone reservoir has compacted into mud - common in Campbell where our clay-heavy soil doesn’t percolate quickly.
• Weeds or grass growing between joints despite regular maintenance. Polymeric sand breaks down over 5-8 years in our freeze-thaw-light cycle; once it degrades, organic matter seeds in the gaps and the root network loosens the interlock that keeps pavers stable under load.
• Chipped corners or spalling surface texture. Richcliff’s embossed finish is particularly vulnerable to de-icing salt and the magnesium chloride products sold at Campbell hardware stores; the chemical attack accelerates surface degradation beyond normal wear.
• Gaps widening along the perimeter or at control joints. Edge restraints - the plastic or aluminum strips pinned at the border - have either pulled loose from their spikes or rotted if wood was used originally, allowing the field to migrate outward.

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Replacement Cost & What’s Included

What drives the range: access for excavation equipment, whether we need to protect existing landscaping or irrigation, and the paver series you select. Unilock’s premium lines like Umbriano run 30-40% above entry-tier options. Every quote we deliver in Campbell is a flat written price with line-item breakdown - material, labor, base import, disposal - before any work starts. The 365-Day Done Right Promise covers settling, joint failure, or material defect; if it’s not right, we make it right. Permits are pulled and inspections passed for any work requiring them under Campbell’s municipal code.

DIY or Call Us?

There’s honest work a homeowner can do: pull a few loose pavers to confirm the base condition, photograph the underside codes for matching, and clear debris from joints before we arrive. Where DIY goes wrong is in the compaction and grading. A plate compactor rental from the big-box store delivers about 2,000-3,000 pounds of centrifugal force; our equipment runs 5,000-plus, and more importantly, we check moisture content in the base material - too dry, it won’t bind; too wet, it pumps and settles in six months. Campbell’s clay soils make this particularly unforgiving.

We’ve also seen homeowners install new polymeric sand without fully removing the old, or sweep it in damp - it activates prematurely, crusts on the surface, and traps water against the paver face. Measure twice, document once, build it right. If you’re seeing the symptoms above, call (831) 704-1211 and we’ll schedule a free estimate with a written price before any work starts.

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