CGI Driveway & Pavers Nationwide

CGI Driveway & Pavers: The Mission Viejo Owner’s Guide

We stock and install CGI-compatible driveway and paver systems in Mission Viejo, with typical installed replacement ranging from $5,000 to $14,000 depending on substrate condition and square footage. Most CGI paver resets and driveway section replacements can be scheduled within 48 hours, and we carry common CGI edge restraints and bedding materials on our trucks. Homeowners usually discover the failure when pavers begin rocking underfoot, when edge courses start migrating downhill on Mission Viejo’s typical 5-8% grade slopes, or after rain exposes washout in the bedding layer that wasn’t there the season before.

Call (657) 297-4635

Which CGI Models This Applies To

CGI, or Concrete Grid Interlocking, isn’t a single brand name like Belgard or Techo-Bloc; it’s a structural system category used by multiple manufacturers including Unilock, Pavestone, and regional suppliers serving Orange County. The key identifier is the grid pattern cast into the paver bottom, designed to lock into a sand-set or open-graded base. In Mission Viejo, we see two main CGI variants: the 80mm residential grid (roughly 4″ x 8″ x 3.15″) common in Casta del Sol driveways installed during the 2005-2015 building wave, and the 100mm commercial-grade grid used in Painted Trails HOA common areas with heavier vehicle loading.

To identify your part, flip a loose paver and check the grid depth: shallow 10mm grids are the older residential spec, while deep 20mm grids with drainage channels indicate the heavier-duty system. The OEM versus aftermarket decision matters here. OEM grid pavers from the original supplier match color lots exactly, but we’ve found that quality aftermarket CGI equivalents from Angelus Block or Orco, properly sampled, blend acceptably on Mission Viejo’s sun-bleached installations after two seasons. The compatibility gotcha: mixing 80mm and 100mm grids in the same field creates a trip hazard that compounds over freeze-thaw cycles, even in mild Orange County winters.

Signs Your CGI Driveway & Pavers Is Failing

• Rocking or clicking underfoot. The bedding sand has eroded or compacted unevenly, breaking the grid lock. In Mission Viejo’s clay-heavy soils, this often starts near downspout discharge points where water concentrates.
• Edge course migration. The perimeter restraint has failed, letting the field spread outward. On sloped driveways in neighborhoods like Pacific Hills, gravity accelerates this; we regularly see 2-3 inches of drift before owners notice.
• Sunken or proud individual pavers. The base layer beneath that section has settled or washed out. Tree roots from the parkway strip are the usual culprit in Mission Viejo’s mature neighborhoods.
• Weed growth through grid joints. The joint sand is gone and organic matter has filled the voids. This signals the bedding layer is compromised and water is penetrating to the subgrade.
• Efflorescence blooming across the surface. White mineral deposits indicate moisture is moving through the paver body from below, usually because the permeable base has clogged with fine sediment from our Santa Ana wind events.

Before

After

Replacement Cost & What’s Included

For Mission Viejo properties, CGI driveway and paver replacement runs $5,000 to $14,000 installed, with paver patio installations in the $3,500 to $11,000 range and driveway sealing at $250 to $700 as preventive maintenance. The spread depends on three factors: whether we can salvage and relay existing CGI material (saves 30-40% on material), the condition of the aggregate base (complete reconstruction adds $2,000-$4,000), and access for excavation equipment in hillside lots common east of the 241.

Every quote is a flat written price with line-item breakdown: paver or grid material per square foot, base aggregate delivered and compacted, edge restraint system, and labor with joint sand and plate compactor work. Under Clause 1 of the Haven Standard, that price is fixed before we start; no change proceeds without a signed change order. The 365-Day Done Right Promise covers workmanship, and we document the base condition and finished grade with a photo record you receive before we leave.

DIY or Call Us?

An owner can safely check three things: verify the paver thickness matches existing stock, confirm edge restraint anchoring depth (should be 6 inches minimum in native soil), and measure the joint width for matching sand gradation. Where DIY goes wrong is in base preparation. CGI systems fail when the subgrade isn’t compacted in lifts with a plate compactor capable of 3,000 pounds of centrifugal force, or when bedding sand is screeded unevenly. We’ve been called to Mission Viejo jobs where a homeowner’s weekend relay settled three inches in six months because the clay subgrade wasn’t proof-rolled first.

There’s no high-tension danger here as with garage door springs, but there is a costly one: relaying twice costs more than doing it once. If you’re unsure about base stability, call (657) 297-4635 and we’ll assess it during a free estimate. Measure twice, then measure again - the lumber yard doesn’t give refunds.

FAQs