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CWS Driveway & Pavers: The Redwood City Owner’s Guide
We stock and install CWS-compatible driveway and paver components across Redwood City, with most replacement jobs running $5,000-$14,000 for full driveway replacement and $250-$700 for sealing work. Parts are typically available same-day through our supplier network, and we carry common CWS edge restraints, base panels, and paver locking sand on our trucks. Most Redwood City homeowners discover a CWS driveway or paver issue when they notice pooling water after rain, shifting pavers along the Edgewood Road grade, or joint sand washing out faster than it should - usually 5-10 years after installation, depending on whether the original base was compacted to spec.
Which CWS Models This Applies To
CWS produces several driveway and paver systems, and the part you need depends on the series stamped on your original invoice or the edge restraint profile visible where the driveway meets the lawn. The CWS Pro-Loc series, common in Redwood City installations from 2015-2020, uses a 1.5-inch PVC edge restraint with integrated stake pockets spaced every 12 inches. The newer CWS Titan series switched to a 2-inch aluminum restraint with a different stake pattern - the two are not interchangeable without redrilling.
To identify your system, measure the exposed edge restraint height and count the stake holes per linear foot. If you see “CWS-PL” molded into the plastic, you have Pro-Loc. “CWS-TN” indicates Titan. We also see CWS permeable paver grids in the Farm Hill neighborhood, where Redwood City’s drainage requirements call for permeable base systems; these use a geogrid underlayment that standard paver base won’t substitute for.
OEM CWS parts ship from the manufacturer’s East Bay warehouse in 2-3 business days. We also source aftermarket equivalents from Belgard and Techo-Bloc where the spec matches - the edge restraint geometry is standardized, but the UV stabilizer rating varies. For Redwood City’s sun exposure, we spec parts rated at 2,000+ hours UV resistance, which some aftermarket brands don’t meet.
Signs Your CWS Driveway & Pavers Is Failing

- Pavers shifting or rocking underfoot. This usually means the bedding sand layer has washed out or the base wasn’t compacted to 95% standard Proctor density. In Redwood City, the clay-heavy soil in the Mount Carmel area makes proper base prep even more critical - we’ve redone three jobs there where the original installer skipped the geotextile fabric.
- Standing water 24 hours after rain. CWS systems rely on a 1-inch-per-foot slope minimum. If water pools, either the slope has settled or the permeable joint material has clogged with fine sediment. The fix isn’t more sealant - it’s regrading or joint replacement.
- Edge restraints pulling away from the border. The PVC or aluminum restraint has likely cracked at a stake point, or the stakes themselves have rusted through. Redwood City’s winter moisture accelerates this if galvanized stakes were used instead of stainless.
- Joint sand flushing out repeatedly. You’re losing polymeric sand because the joints are too wide (over 3/8 inch for CWS standard pavers) or the sealant coat has failed. We see this often on south-facing driveways in the Woodside Plaza area where thermal expansion opens joints faster.
- Efflorescence - white powder on paver faces. This is mineral migration from the base material, not a structural failure, but it signals moisture moving through the system incorrectly. Left alone, it can precede freeze-thaw spalling in colder Peninsula microclimates.
Before
AfterReplacement Cost & What’s Included
| Service | Redwood City Price Range | What’s Included |
|---|---|---|
| Driveway sealing (CWS-compatible) | $250-$700 | Power wash, joint sand refresh, two-coat solvent-based sealant |
| Edge restraint replacement (per linear foot) | $18-$32 | Removal, base recompaction, new restraint, stakes, backfill |
| Partial paver reset (under 200 sq ft) | $1,200-$2,800 | Lift, regrade, new bedding sand, relay, joint sand, plate compaction |
| Full driveway replacement | $5,000-$14,000 | Demo, haul-away, 6-inch aggregate base, bedding sand, pavers, edging, joint sand, plate compaction, sealant |
| Permeable paver grid repair | $2,500-$6,000 | Grid extraction, base cleaning, geotextile inspection, new grid, aggregate recharge |
The range depends on three factors: how much of the base is salvageable, whether we need to match discontinued CWS paver colors (we photograph and source from remaining stock lots), and access for our compaction equipment. Under Clause 1 of The Haven Standard, you get the full written price before we start - no call-for-a-quote, no “we’ll see once we’re in there.” Every driveway job carries our 365-Day Done Right Promise.
DIY or Call Us?

There’s honest work a homeowner can do: sweep fresh polymeric sand into open joints after a rain, check that downspouts aren’t dumping directly onto the driveway edge, and photograph any cracking for reference. What we don’t recommend is lifting settled pavers yourself - the bedding sand layer needs precise grading, and without a plate compactor and laser level, you’ll likely create low spots that pool worse than before.
Edge restraint replacement looks simple but isn’t. The restraint stakes are driven 8 inches into compacted base; removing them without disturbing the adjacent bedding layer takes experience. We’ve been called to Redwood City jobs where a homeowner’s DIY restraint pull-up turned a $900 edge fix into a $3,200 relay because the base slumped.
Call (650) 560-7228 if you’re seeing shifting, pooling, or joint loss. We’ll photograph the condition, measure the system, and give you a written price before any work starts.
FAQs
Properly installed CWS pavers last 20-30 years, but edge restraints typically need attention at 8-12 years and sealant every 3-5 years. Redwood City’s combination of winter moisture and summer UV exposure accelerates PVC restraint brittleness compared to inland Bay Area climates. Call (650) 560-7228 for an exact assessment - estimates are free.
Yes, if the base is still sound. We can reset settled sections, replace individual cracked pavers, and refresh joint sand without touching the base layer. If the base has failed - indicated by widespread rocking or subsidence deeper than 2 inches - partial or full replacement is the only lasting fix. Call (650) 560-7228 for a written evaluation.
Edge restraint work runs one day. A partial reset of 150-300 square feet takes 2-3 days including cure time for bedding sand. Full driveway replacement is 4-6 days, plus 48 hours before vehicle traffic. We don’t promise same-day completion on planned hardscape work - the base compaction and joint sand setting need proper time. Call (650) 560-7228 to schedule.
We carry CWS-compatible edge restraints, polymeric joint sand, and base stabilization geogrid on every driveway and pavers crew truck. Specific paver colors and the CWS Titan aluminum restraint profile are pulled from our Redwood City warehouse or ordered for next-day delivery if your color is discontinued. Call (650) 560-7228 - we’ll confirm stock against your series and color before we arrive.
Rowan Construction Group Redwood City is an independent service provider, not affiliated with CWS. We also stock parts for KraftMaid, Cambria, and Silestone product lines.
Measure twice, document once, build it so it doesn’t come back. That’s how we’ve handled over 4,000 projects since 2007, every one with a written price before the first tool came off the truck.
Written by Grant Rowan, Owner, Rowan Construction Group Redwood City at Rowan Construction Group Redwood City, serving Redwood City and nearby areas.







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