CGI Driveway & Pavers Nationwide

CGI Driveway & Pavers: The Carlsbad Owner’s Guide

We stock and install CGI-compatible driveway and paver systems in Carlsbad, with replacement projects typically running $5,000-$14,000 for driveway replacement and $3,500-$11,000 for paver patio work depending on substrate condition and square footage. Most homeowners notice the problem first as settling along the Bressi Ranch corridor’s expansive clay soils, or as efflorescence whitening that won’t pressure-wash off after Carlsbad’s marine layer mornings. Measure twice, document once, and tell the client before they have to ask - that’s how we approach every CGI paver assessment.

Call (858) 815-9080

Which CGI Models This Applies To

CGI, or Concrete Grid Interlocking, isn’t a single manufacturer brand but a system type - permeable concrete pavers laid in a grid pattern with open joints for drainage. In Carlsbad, we see three main generations: the original 80mm residential grid installed heavily in 2008-2014, the 100mm commercial-spec grid that became common after Caltrans adopted permeable standards, and the current 60mm slim-profile series popular in newer infill near La Costa. Check the edge restraint or a lifted corner unit for a stamped spec - “CGI-80,” “CGI-100,” or “CGI-60” - plus the compressive strength rating (typically 8,000 PSI for residential, 10,000+ for drive-rated).

The OEM-versus-aftermarket question matters less with CGI than with, say, cabinet hardware. What matters is the grid dimension match - 4-inch, 6-inch, or 8-inch center-to-center spacing - and the joint aggregate size, which must match the original 3/8-inch clear crush for proper interlock. We source through Belgard and Techo-Bloc’s grid-compatible lines, both of which publish CSI MasterFormat specs we can cross-check against your existing installation. If your original installer left no documentation, we pull a core sample, photograph the profile, and match it before quoting.

Signs Your CGI Driveway & Pavers Is Failing

• Visible settling or “ponding” after rain. The permeable joint aggregate has washed out or compacted, breaking the load-distribution grid. In Carlsbad’s coastal zones, this happens faster where irrigation overspray keeps the base saturated.
• Efflorescence that returns within weeks of cleaning. White mineral deposits indicate moisture is migrating through the paver body from a compromised bedding layer, not just surface evaporation. The grid is no longer draining vertically as designed.
• Individual units rocking under foot or tire. The bedding sand has eroded or the base course has degraded. CGI systems rely on tight interlock; once one unit moves, point-loading accelerates failure in neighbors.
• Weeds growing from the joint centers, not the edges. This signals the 3/8-inch clear stone has been replaced by soil infiltration, usually from adjacent planter beds or erosion. The permeable system is now clogged and holding moisture against the base.
• Edge restraint pulling away from the perimeter. Plastic or concrete edging secures the grid’s structural integrity. When it fails, the interlock unravels from the outside in - we’ve seen entire Carlsbad driveways spiderweb inward from a single failed corner.

Before

After

Replacement Cost & What’s Included

CGI driveway replacement in Carlsbad runs $5,000-$14,000; paver patio grid replacement runs $3,500-$11,000. The spread depends on three factors we document in writing: square footage, base course condition (whether we can salvage the 6-inch aggregate base or must excavate and recompact), and access for equipment.

Under Clause 1 of The Haven Standard, every quote is a flat written price with line-item scope before work begins. Our 365-Day Done Right Promise covers the installation; material defects carry the manufacturer’s warranty, which we register and document in your photo record.

DIY or Call Us?

What you can safely check: lift one corner unit with a flat pry bar to confirm the spec stamp and photograph the base layer color and condition. What goes wrong fast: excavating without calling USA North 811 for utility locates, compacting the base in lifts thicker than 6 inches (it’ll seem solid, then settle in six months), or using the wrong joint aggregate - mason sand or decomposed granite will clog the permeable system entirely. The grid pattern itself is unforgiving; a 1/8-inch running bond error compounds across the field. We bring a plate compactor with gauge, laser screed for base, and stock the correct 3/8-inch clear crush on every CGI job in Carlsbad. Call (858) 815-9080 and we’ll assess what you’ve got, no charge.

FAQs