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Mighty Buildings Driveway & Pavers: The Campbell Owner’s Guide

We stock and install Mighty Buildings-compatible driveway pavers and base systems in Campbell, with typical installed pricing running $7,000-$18,000 for paver driveway replacement and $3,500-$11,000 for paver patio work depending on substrate condition and square footage. Most Mighty Buildings paver inquiries we see in Campbell involve settling, drainage failure, or joint sand washout after the wet winters common to the Santa Clara Valley floor. You’ll usually notice the problem first as wobbling stones, pooling after rain, or visible dips where the compacted base has degraded beneath the surface.

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Which Mighty Buildings Models This Applies To

Mighty Buildings produces prefabricated ADUs and residential structures with specified hardscape pairings rather than a standalone paver line, so “Mighty Buildings driveway and pavers” refers to the permeable paver systems and concrete landing pads specified in their site preparation documentation for unit delivery and access. The critical compatibility point is the 4-inch minimum compacted base depth their engineers require for point-load distribution when their crane or flatbed sets the module.

We’ve worked on Mighty Buildings placements near the Pruneyard Shopping Center and along Winchester Boulevard where the original paver spec was either Belgard Cambridge Cobble in the 60mm thickness or Techo-Bloc Antika at 70mm, both set on open-graded stone base for drainage. If you’re replacing existing pavers, check the edge restraint label - Mighty Buildings installations typically use Snap Edge or equivalent aluminum restraint pinned at 12-inch centers, which differs from the plastic edging common in standard residential paver jobs. The OEM spec calls for ASTM C936-compliant concrete pavers at 8,000 PSI minimum; we’ve found that quality aftermarket equivalents from Unilock and Pavestone meet this spec at lower cost, though we document the substitution in writing per Clause 1 of the Haven Standard.

To identify your exact system, look for the Mighty Buildings site prep stamp on your original permit set or check the gravel base depth at any lifted edge. If you see less than 4 inches of compacted Class 2 base, the installation predates their current standard and will need full reconstruction, not just surface paver replacement.

Signs Your Mighty Buildings Driveway & Pavers Is Failing

• Individual pavers rock or sink when stepped on. This indicates base erosion or inadequate compaction beneath that specific area. In Campbell, we see this most often where downspouts discharge directly onto the paver field, washing out the bedding sand and creating voids in the base layer below.
• Standing water remains 30 minutes after rain stops. Permeable paver systems rely on joint gaps and open-graded base to drain; when joint sand migrates or the base clogs with sediment, water sheets across the surface instead of percolating through. This accelerates freeze-thaw damage even in Campbell’s mild climate and promotes efflorescence on the paver faces.
• Weeds growing thickly between joints. Polymeric sand failure allows organic material to accumulate, which retains moisture and compromises the interlock that keeps pavers stable under vehicle loads. Once weeds establish, their root systems physically displace the sand and loosen the interlock further.
• Chipped or spalled paver corners, especially near the garage threshold. This is the first visible sign of point-load stress from delivery vehicles or the Mighty Buildings module placement itself. ASTM C936 pavers should tolerate this loading; corner damage suggests substandard paver quality or insufficient base depth at that transition.
• Edge restraint pulling away from the paver field. The aluminum or plastic edging that contains the lateral load of the paver pattern has either lost its spikes to corrosion or was never properly anchored in a concrete haunch. In Campbell’s clay-heavy soils near the Los Gatos Creek corridor, seasonal expansion and contraction work spikes loose over three to five years.

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Replacement Cost & What’s Included

For Campbell properties, our installed pricing follows the ranges below with no change orders once the scope is signed:

The spread within each range comes down to three factors: square footage, substrate condition (whether we hit saturated clay or can reuse some base), and paver selection - Belgard and Techo-Bloc run higher than equivalent-spec Pavestone, and we quote each line item separately so you see where the money goes. Under the Haven Standard, the written price includes permits pulled, inspections passed, and our 365-Day Done Right Promise on the installation. Every job leaves with a documented photo record of the excavated base, the compaction test, and the finished surface.

DIY or Call Us?

There’s no high-tension danger in paver work, but there is a costly mistake we see weekly in Campbell: homeowners rent a plate compactor, lay what looks like a level base, and discover settlement cracks within one winter because the base wasn’t compacted in 6-inch lifts with proper moisture content. The tool is available; the technique to read optimum moisture by hand-squeeze test, and to verify compaction with a nuclear density gauge, is not.

What you can safely check yourself: lift a corner paver and measure your base depth with a tape measure. If it’s under 4 inches, or if you see mud pumping up through the stone, you’ve got a substrate problem that surface fixes won’t solve. What we handle: base reconstruction, grade correction for drainage away from the Mighty Buildings foundation, and coordination with Campbell’s building division if the work ties into your original ADU permit. Call (831) 704-1211 and we’ll walk through what you’re seeing before you commit to any scope.

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