Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
CWS Construction in Redwood Shores, CA | San Bernardino Contractors
We provide Redwood Shores Home Remodeling and independent CWS construction service across the area, from kitchen and bath remodels to roof repair and foundation work. The thing that separates our CWS work here from anywhere else: we plan every project around reclaimed marshland, bay mud settlement, and salt air. If you’re planning a remodel or repair in Redwood Shores, call (855) 473-5620 for a free estimate. We’re San Bernardino Contractors, and we know what this ground does to a structure.
Why Redwood Shores Residents Choose Us for CWS Service
Ruben Castillo grew up watching his uncle reroof houses and frame garages in San Bernardino’s Westside, where cutting corners wasn’t an option on a tight budget. That training stuck. He completed his construction technology coursework at San Bernardino Valley College, then spent twenty years managing whole-home remodels, concrete work, and framing across the Inland Empire. Now our crews bring that same material-savvy approach to Redwood Shores as our General Contractor in Redwood Shores, where the conditions demand it. We’re an independent CWS service provider, not manufacturer-affiliated or authorized, which means our recommendations come from what actually holds up in this marine environment, not from a corporate script. We know which fasteners corrode, which membranes fail, and which foundation details need extra attention here. Homeowners in Redwood Shores who’ve done their research call us because we can speak fluently about CWS post-tension slab systems, GAF-certified roofing, Cambria quartz, and every brand in between.
One contractor, every phase. No subcontractor shuffle. You pick the brand, we handle the build.
Styles & brands we work with







Common CWS Construction Problems We Solve in Redwood Shores
- Post-tension slab cracking from bay mud settlement. CWS 3000 Series post-tension slab systems are common in Redwood Shores, but the engineered fill beneath them shifts over time. We routinely see hairline cracks turn into alignment problems: doors that bind, cabinets that won’t sit level, tile that pops. The fix often involves slab evaluation and re-leveling before any finish work begins.
- Raised foundation rot on lagoon-front homes. CWS 5000 Series raised foundation systems along the lagoons take on moisture from below and salt air from above. Joists, sill plates, and subflooring rot faster here than in San Carlos or Belmont. We find it during kitchen remodels when we pull up old flooring and the subfloor crumbles.
- Waterproofing failure at deck and dock interfaces. CWS 9000 Series lagoon-front deck and dock piling systems fail where the deck ledger meets the house. Winter groundwater intrusion plus poor original drainage detailing means water gets behind flashing and sits there. By the time you see staining on the interior wall, the ledger has been rotting for years.
- Corrosion of exterior trim and fasteners on 1980s stucco homes. The original single-pane aluminum windows and stucco exteriors on Redwood Shores’ 1980s and 1990s builds weren’t spec’d for decades of salt-laden marine layer fog. We replace corroded window fasteners, door thresholds, and trim during exterior projects, and we recommend marine-grade hardware where it makes sense.
- Composition roof degradation from salt air and fog. Roofing systems on Redwood Shores homes face constant moisture and salt. We inspect for granule loss, nail rust, and flashing corrosion, then repair or replace using GAF, CertainTeed, or Owens Corning systems with proper underlayment for this climate.
CWS Service in Redwood Shores: What Local Conditions Mean for Your Equipment
Redwood Shores is built on reclaimed bay marsh and engineered fill. Every project here, from a room addition to a full remodel, contends with high water tables, bay mud settlement, and oversight from the Bay Conservation and Development Commission (BCDC) plus city design review. That’s a permitting layer contractors in neighboring cities never face. Along the lagoon-front streets, we regularly find deck and dock pilings that have rotted above the waterline from years of bay moisture, not below it where people assume. And any new construction near the sloughs triggers BCDC permitting that adds months to a schedule. For CWS owners in nearby communities like CWS in San Mateo, this means one thing: planning ahead matters. What looks like a simple kitchen remodel in a 1980s Mediterranean on a compact lot may require foundation assessment, drainage verification, and permit work before a single cabinet goes in. We build that timeline into our estimates so you’re not surprised halfway through.
CWS Models & Products We Service in Redwood Shores
We work on the full range of CWS construction products found in Redwood Shores homes: the CWS 3000 Series post-tension slab systems under most 1980s and 1990s builds, the CWS 5000 Series raised foundation systems on lagoon-front lots, the CWS 7000 Series bay-front planned development systems, and the CWS 9000 Series lagoon-front deck and dock piling systems. For critical structural components like post-tension cables and anchors, we use OEM parts, period. For non-structural items like decking fasteners and waterproofing membranes, we source high-quality aftermarket options when they offer better corrosion resistance for this marine environment. We stock common fasteners, flashing, and membrane materials locally so turnaround in Redwood Shores doesn’t stall while parts ship. And we’re honest about repair versus replacement. Bay mud settlement and salt-air corrosion often make replacement the smarter long-term call, and we’ll tell you that straight.
See the difference
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AfterCWS Service Pricing in Redwood Shores
Here’s what CWS-related work typically runs in Redwood Shores, based on what we see across the ZIP code 94065 market.
| Project | Typical Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Roof Repair | $400 – $1,800 |
What drives cost here more than anything is what’s underneath. If your post-tension slab has shifted and needs re-leveling before cabinets go in, that adds structural work to the remodeling price. If we open a wall and find ledger rot from years of bay moisture, that adds framing and waterproofing. Every free estimate includes a line-item quote so you see exactly what you’re paying for, and the price doesn’t change once work starts unless we uncover something structural that wasn’t visible before. Call (855) 473-5620 for an exact quote on your Redwood Shores project.
Serving Redwood Shores, CA — Our Local Coverage Area
We’re based in the Redwood Shores area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – CWS Construction in Redwood Shores
It affects the foundation first. A high water table means the soil under your slab or raised foundation stays saturated, which accelerates bay mud movement and settlement. Before we set a single cabinet, we check slab level and drainage. If the slab has moved, cabinets will never sit right no matter how precisely we shim them. Call (855) 473-5620 and we’ll tell you what your specific home is dealing with before you spend money on finishes.
Only if the work touches the exterior envelope or expands the footprint. An interior bathroom remodel with no structural changes generally doesn’t trigger BCDC review, but adding a window, changing the roofline, or expanding into a new addition near the sloughs can. We handle the permitting determination as part of every estimate so you know what you’re in for. Call (855) 473-5620 to talk through your specific project.
Salt-laden marine fog accelerates nail and flashing corrosion. We see roofs in Redwood Shores where the shingles look fine but the nails are rusted to the point of failure. Flashing around skylights, chimneys, and vents is the first thing to go. We repair or replace using GAF, CertainTeed, or Owens Corning systems with corrosion-resistant fasteners spec’d for coastal exposure. Call (855) 473-5620 for a roof inspection and free estimate.
Yes, but you can’t cut into a post-tension slab without knowing where the cables run. Cutting a cable under tension can be dangerous and can compromise the entire slab. We use ground-penetrating radar to map cables before any plumbing trench or curb work begins. In Redwood Shores, where water table pressure adds another layer of concern, proper waterproofing under the shower pan matters more than it would in drier cities. Call (855) 473-5620 and we’ll walk your specific bathroom layout through the process.
If your slab has settled unevenly, your floor isn’t level. Cabinets installed on an unlevel floor will rack, gaps will open at the toe kick, and doors won’t align. We check floor level first, re-level with a self-leveling compound when needed, and only then install cabinets. The CWS 3000 Series homes in Redwood Shores regularly need this prep step. It’s the difference between cabinets that look right for two months and cabinets that look right for twenty years. Call (855) 473-5620 for a free cabinet installation estimate.
Service Areas Near Redwood Shores
We also provide CWS service in Belmont and CWS service in Foster City, plus the surrounding Bay Area communities. If you’re in San Carlos, San Mateo, or anywhere in the 94065 ZIP and adjacent areas, reach out. We work throughout the Peninsula and know the local conditions in each. See our Redwood Shores service area page for full details on coverage and local specifics. For more on our CWS expertise and repair philosophy, visit our CWS sales & service page.
Book Your CWS Service in Redwood Shores Today
If CWS in San Carlos or Redwood Shores construction work is on your list, call (855) 473-5620 and we’ll schedule a free estimate. Ruben Castillo and the San Bernardino Contractors team know this ground, this climate, and these homes. If it’s not built right the first time, you’re just paying for it twice.
Written by Ruben Castillo, Owner at San Bernardino Contractors, serving Redwood Shores and the Bay Area.