CGI Driveway & Pavers Nationwide

CGI Driveway & Pavers: The Palo Alto Owner’s Guide

We stock and install CGI-compatible driveway and paver systems in Palo Alto, with typical installed replacement costs running $7,000-$18,000 for paver driveways and $3,500-$11,000 for paver patios depending on substrate condition and access. Most CGI paver resets and section replacements can be scheduled within 48 hours, and we carry common edge restraints, bedding sand, and polymeric jointing compounds on our trucks. Most Palo Alto homeowners discover their CGI paver installation is failing when they notice joint sand washing out after winter rains, individual pavers rocking underfoot, or water pooling where the grade used to shed toward the street - usually after five to ten years of Peninsula freeze-thaw cycles and the occasional root intrusion from the mature oaks and redwoods common to Old Palo Alto and Professorville lots.

Call (650) 446-9092

Which CGI Models This Applies To

CGI does not manufacture pavers directly. The brand supplies driveway and hardscape systems through licensed dealer-installers, and the parts that fail are the installation-specific components: edge restraints (typically aluminum or PVC), bedding sand layers, geotextile fabric, and polymeric joint sand. To identify what you have, look for the stamped lot number on paver edges or the original project documentation. If your driveway was installed between 2010 and 2020 by a CGI-authorized contractor in Santa Clara County, you likely have a standard 60mm paver on 1-inch bedding sand with PVC edge restraint.

The OEM-versus-aftermarket decision for CGI systems is straightforward in our experience. CGI-authorized edge restraints run 30-40% higher than equivalent-grade commercial PVC or aluminum restraint from manufacturers like Belgard or Techo-Bloc, which we also stock. We use OEM-spec restraints when the original warranty is still active; otherwise, we match the profile and gauge with vetted aftermarket equivalents. The compatibility gotcha is the stake spacing: CGI’s older spec called for 12-inch centers, while current best practice and most aftermarket restraints use 8-inch centers for the clay-heavy soils around Palo Alto. Using the wrong spacing leads to restraint failure within two seasons.

Signs Your CGI Driveway & Pavers Is Failing

• Joint sand washing out between pavers. This means your polymeric sand binding layer has degraded, which happens faster in Palo Alto’s winter rainfall pattern than in drier inland climates. Once water penetrates, the bedding screed beneath begins to erode.
• Individual pavers rocking or sounding hollow when stepped on. The bedding sand layer has settled unevenly, often from inadequate compaction during original install or from root intrusion from nearby coast live oaks. Each rocking paver concentrates load and cracks neighbors.
• Water pooling where drainage used to work. Grade failure indicates subsidence in the aggregate base, common in Palo Alto’s older neighborhoods where original installs skipped geotextile separation fabric. Standing water accelerates freeze-thaw damage.
• Edge restraints pulling away from the perimeter. PVC or aluminum restraint loses holding power when stakes corrode in our clay soils or when lawn maintenance equipment strikes the exposed edge. Once restraint goes, the field spreads and joints open.
• Efflorescence whitening on paver faces that won’t brush off. Calcium hydroxide migration from the bedding layer signals moisture trapped beneath, usually from failed joint seal or inadequate slope. In Palo Alto’s marine-influenced climate, this trapped moisture cycles daily.

Before

After

Replacement Cost & What’s Included

For Palo Alto properties, paver driveway section replacement runs $7,000-$18,000 installed; full patio resets run $3,500-$11,000. Driveway sealing, which extends service life and should happen every 3-4 years here, runs $250-$700. What drives the range: access for equipment (narrow Midtown lots cost more), substrate depth required for vehicle loads versus foot traffic, and whether we need to match discontinued paver colors from original CGI-authorize installs.

Every quote we write itemizes removal, base regrading and compaction, new bedding sand, paver relay or replacement, polymeric joint sand application, and edge restraint. Under Clause 1 of The Haven Standard, that written price is delivered before any work starts. Our 365-Day Done Right Promise covers the installation; material warranties run through the manufacturer. We pull permits when required by Palo Alto’s municipal code for driveway work affecting curb cuts or stormwater flow.

DIY or Call Us?

What you can safely check: walk the surface and mark rocking pavers with chalk, photograph washed-out joints for comparison, and verify whether water still drains toward the street or into your yard. Do not attempt to lift and relay pavers yourself if the installation borders a public sidewalk or curb - Palo Alto requires permits for any work affecting the right-of-way, and utility shallow lines run closer than most homeowners expect.

Where DIY goes wrong: improper bedding sand compaction leads to recurrence within months, and polymeric joint sand requires precise moisture activation - too little and it won’t set, too much and it stains paver faces permanently. We see this mistake weekly. For section resets or anything involving grade correction, call (650) 446-9092. We’ll photograph what’s happening, write the scope and price, and schedule the work.

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