Cambridge Pavers Home Additions & ADU Nationwide

Cambridge Pavers Home Additions & ADU: The Irvine Owner’s Guide

Cambridge Pavers home additions and ADU projects in Irvine typically run $45,000-$130,000 for full additions and $90,000-$220,000 for detached ADUs, with paver patio and walkway integration starting around $3,500-$11,000. We stock Cambridge Pavers-compatible materials and can match existing installations for seamless expansions. Most Irvine homeowners discover their paver installation needs attention when settling, drainage failure, or HOA inspection flags appear during an addition or ADU planning phase.

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Which Cambridge Pavers Models This Applies To

Cambridge Pavers produces several lines common in Irvine’s planned communities, including ArmorTec, Ledgestone, and Cobble series, each with distinct thicknesses and interlock patterns that must be matched precisely for structural continuity. The ArmorTec 3-pc. modular system, frequently specified by Irvine Company developments near the Spectrum and Orchard Hills, uses a 2-3/8″ thickness with a beveled edge profile that aftermarket pavers rarely replicate correctly. To identify your existing Cambridge installation, check for the stamped “CP” logo on the paver edge or measure the joint spacing, which runs 1/16″ tighter than Belgard or Techo-Bloc equivalents.

We source OEM Cambridge Pavers through authorized Southern California distributors, though for certain discontinued colors, we vet aftermarket alternatives against Cambridge’s original spec sheets for compressive strength (8,500 PSI minimum) and absorption rates. The wrong substitution in Irvine’s freeze-thaw cycle, mild as it is, still risks spalling where drainage is poor, particularly in the lower-lying Woodbridge and Northpark areas with clay-heavy soils.

Signs Your Cambridge Pavers Home Additions & ADU Is Failing

• Sinking or settling in traffic paths. The bedding sand beneath Cambridge pavers has eroded or compacted unevenly, often where downspouts discharge directly onto the surface. In Irvine’s compacted native soils, this accelerates when the original base course was installed at less than 6″ of Class II aggregate.
• White efflorescence haze that returns after cleaning. Calcium hydroxide migration from the concrete substrate indicates moisture trapped below the paver bed. Cambridge’s ArmorTec coating resists surface absorption, but efflorescence still signals a drainage membrane failure that will worsen with irrigation overspray common in Irvine’s automated systems.
• Chipped or spalled edges along driveway or patio perimeters. Cambridge pavers with integrated spacer bars can fracture where vehicle loads exceed the 8,500 PSI design threshold, or where edge restraints have pulled away from the bedding course. This is particularly visible on ADU approach paths where delivery trucks have tracked across during construction.
• Weeds or grass growing through joints wider than 1/8″. Polymeric sand degradation allows organic material to colonize, and in Irvine’s mild climate, Bermuda grass roots can destabilize the interlock within a single growing season. The joint sand itself may have been improperly activated during original installation.
• Standing water 24 hours after rainfall or irrigation. Cambridge pavers require a minimum 1% slope for surface drainage; pooling indicates either subgrade settlement or a base course that was insufficiently compacted to 95% standard Proctor density. In ADU projects where the original paver patio was cut into for utility trenches, restoration work often misses this critical grade.

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Replacement Cost & What’s Included

The range reflects base condition, access for excavation equipment, and whether we’re matching discontinued Cambridge color blends. Every quote is flat-priced with written scope before work begins, per Clause 1 of The Haven Standard. Our 365-Day Done Right Promise covers the installation and materials; Cambridge’s own limited warranty against manufacturing defects runs 25 years for residential applications and transfers with the Irvine property.

DIY or Call Us?

An Irvine homeowner can safely inspect paver condition, measure joint widths, and photograph the Cambridge stamp for identification. What goes wrong fast is base excavation: without plate compaction in lifts and laser-verified grade, the repair sinks again within a season. For ADU-adjacent work, California’s Title 24 energy compliance and Irvine’s strict setback and permeability requirements mean permits and inspections are non-negotiable, and DIY paver installation without documented base prep will fail final inspection.

Rowan Construction Group Irvine is an independent contractor, not affiliated with Cambridge Pavers. We pull permits, schedule inspections, and deliver a documented photo record of every phase. Call (657) 227-2502 to schedule your free estimate.

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