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Cambridge Pavers Home Additions & ADU: The San Diego Owner’s Guide
Adding a home addition or ADU that incorporates Cambridge Pavers hardscaping in San Diego typically runs $53,100 to $153,400, depending on square footage, foundation work, and how much paver surface you’re including. We install and build around Cambridge Pavers products regularly across San Diego, and most homeowners call us because their existing paver patio, walkway, or retaining wall has shifted, creating a trip hazard or drainage problem that’s threatening the structural edge of their addition. The failure is usually not the pavers themselves. It’s what’s underneath them.
What surprises most San Diego owners is how often a home addition project stalls because the paver base wasn’t compacted correctly the first time. We see it in Rancho Bernardo, Clairemont, and Point Loma: a beautiful Cambridge paver patio that’s sinking at the corner where the new ADU foundation meets the existing hardscape. The pavers are fine. The base failed. That’s the fix.
Which Cambridge Pavers Models This Applies To

Cambridge Pavers with ArmorTec® surface protection covers their full lineup, but the compatibility question that matters for home additions and ADUs in San Diego comes down to three product families: the Ledgestone line for retaining walls and veneer, the Roundtable and Maytrx paver lines for patios and driveways, and the Sherwood Collection for permeable applications. Each line uses different thicknesses and joint tolerances, and mixing them on one addition looks wrong and performs worse.
The gotcha most people miss: Cambridge wall units are only compatible within their own system. A Ledgestone cap won’t seat properly on a Maytrx base course, and if your addition’s retaining wall is already partially built, we need to identify the exact unit before we order a single replacement. We measure the face dimensions and check the underside for the molded Cambridge product code before recommending OEM versus a quality aftermarket equivalent. For walls that bear structural load from an addition or ADU setback, we always recommend OEM Cambridge Pavers. For flat patio sections, a top-tier equivalent can work, but the color match will never be exact after three years of San Diego sun.
Styles & brands we work with







Signs Your Cambridge Pavers Home Additions & ADU Is Failing
- Pavers sinking at the foundation line. The base material under the pavers was never compacted to 95% density, or water is washing fines out from underneath. This is the most common failure we see where an addition meets existing hardscape.
- Gaps widening between pavers near the ADU. Edge restraint wasn’t installed or the plastic edging pulled loose. Once the perimeter fails, every paver starts migrating outward, and the pattern opens up.
- Water pooling against the addition’s stucco or siding. The paver slope was laid flat or toward the structure. In San Diego’s clay-heavy soils, even a half-inch of standing water against a wall will wick up and rot the bottom plate within a few seasons.
- Retaining wall leaning or bulging. This is a real hazard, not a cosmetic issue. A Cambridge Ledgestone wall holding back soil next to an ADU that’s leaning more than an inch out of plumb needs an engineer’s look and usually a rebuild.
- Efflorescence that won’t stop returning. White mineral deposits keep coming back after cleaning because water is trapped under the pavers with nowhere to drain. On an addition site, that moisture also migrates toward the foundation.
See the difference
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After
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After
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AfterReplacement Cost & What’s Included

For a Cambridge Pavers-specific repair tied to a home addition or ADU in San Diego, you’re looking at $53,100 to $153,400 for full addition construction with integrated hardscape, or $4,130 to $12,980 if you just need the paver patio portion re-laid and re-based. What drives the number: how much old base we have to remove and haul, whether the soil underneath needs geogrid stabilization, and how many feet of retaining wall we’re rebuilding versus repairing.
Every quote from Mason Remodeling Co San Diego includes the paver materials, base rock, sand, compaction, edge restraint, disposal of the failed base, and labor in one written price. No verbal estimates that grow. No change orders that surprise you. We deliver the price before any work starts, and we stand behind the installation for 365 days from the completion date. If the pavers move or the base settles within that year, we come back and fix it at no charge.
Key Takeaways:
- Cambridge Pavers additions and ADUs in San Diego range from $53,100 to $153,400 for full construction.
- Standalone paver patio replacement or re-leveling runs $4,130 to $12,980.
- OEM Cambridge units are recommended for load-bearing walls near foundations.
- We provide a written price before work starts and a 365-day Done Right Promise on the finished job.
DIY or Call Us?
You can check a few things safely: measure the gap between your pavers and the foundation, note where water sits after rain, and mark any paver that rocks underfoot. What you shouldn’t do is start pulling pavers next to a load-bearing wall. Once you disturb the edge restraint, the whole field can shift, and if a retaining wall is involved, you’re into genuinely dangerous territory. A leaning wall holding back soil can let go fast, and nobody should be standing near it.
Tell me what’s broken. I’ll tell you what it takes. If the paver field is small and level, you might get away with re-sanding and sealing on a weekend. But if the pavers are moving, or water is working against your addition, call us at (619) 673-9302 for a straight assessment and a written price.
FAQs

Cambridge Pavers with ArmorTec typically last 30 to 50 years in San Diego’s climate, but the base underneath them rarely survives more than 15 to 20 years without some settling. The pavers themselves hold up well to our UV exposure and salt air near the coast; it’s the sand, base rock, and edge restraint that fail first. Call (619) 673-9302 if your base is showing signs of settlement.
Yes, in most cases we can lift the affected section, re-compact the base, and re-lay the same Cambridge Pavers for a fraction of replacement cost. The exception is when the base has failed across the entire field or the pavers have chipped at the edges from movement. We’ll tell you honestly which situation you have after we see it.
A paver patio re-level and re-lay next to an ADU usually takes 2 to 4 days. A full home addition or ADU build with Cambridge hardscape integrated runs 4 to 8 months depending on plan check, permitting, and foundation work. We’ll give you a written timeline with your written price before anything starts.
We keep common Sandstone and Onyx/Granite City Blend units in stock for repairs, but any specialty color or the larger Ledgestone wall units get ordered for your specific job. Lead time from Cambridge Pavers distributors in San Diego is usually 5 to 10 business days. We also bring the right base materials, sand, and edge restraint on the truck so the job isn’t sitting idle waiting on parts.
If you’re planning a home addition or ADU with Cambridge Pavers in San Diego, call (619) 673-9302 for a free estimate. We’ll put the numbers in writing, tell you who’s coming before they arrive, and stand behind the work for a full year. We’re Mason Remodeling Co San Diego, an independent service provider and not affiliated with Cambridge Pavers, but we know their product lines as well as anyone installing them in this county. We also work with KraftMaid, Cambria, and Silestone products on the interior side, so your addition is covered inside and out.
Written by Isaac Pruett, Owner, Mason Remodeling Co San Diego at Mason Remodeling Co San Diego, serving San Diego and nearby areas.


