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 Marin City, CA | San Mateo Construction
We provide independent CWS window and door service across Marin City, CA, from full Coastal Series replacements to sliding door track rebuilds. The thing that separates our CWS work here from everywhere else we operate: Marin City’s hillside geology and salt-air exposure stress these units in ways you won’t see in Sausalito CWS service flatlands or Mill Valley’s redwood-shaded canyons. You’re not just dealing with a failed seal, you’re dealing with a failed seal on a wall that may have shifted since 1952. Call (855) 901-7266 and we’ll come take a look.
Why Marin City Residents Choose Us for CWS Service
Our crew handles CWS coastal-grade installs and retrofits every week, so we know exactly where these units fail and what’s worth repairing versus replacing. CWS builds some of the most weather-exposed window and door systems on the market, and in Marin City’s wet, salty microclimate, that exposure isn’t theoretical. It’s fogged glass, corroded roller tracks, and wind-driven water finding its way past tired corner seals. Noel Carrington, our owner, grew up learning how moisture and poor drainage eat at framing, and that’s the lens he brings to every CWS service call in the 94965 ZIP code. You get a straight answer about whether a coastal CWS window is worth re-glazing and re-sealing, or whether full replacement saves you money over the next decade.
We’re an independent contractor, not affiliated with or authorized by CWS. That matters because we have no incentive to push a full replacement when a track rebuild or seal job gets you another five years. We do have incentive to be honest, because Marin City is a small community and word travels fast.
Styles & brands we work with
Common CWS Construction Problems We Solve in Marin City
- Salt-air corrosion on aluminum sliding door tracks and rollers. Units facing Richardson Bay pick up constant airborne salt, which pits the anodized finish and binds the rollers. We see this most in homes on the lower streets near the bay, where you get both salt and morning fog. We source OEM CWS hardware when available and specify quality aftermarket rollers when OEM lead times would leave your door stuck for three weeks.
- Foggy marine-layer condensation between panes in older CWS vinyl windows. The seal fails after years of thermal cycling between damp nights and warm afternoons, and suddenly the glass fogs every morning. On hillside exposures above the 101, this happens faster because the temperature swings are wider and the fog settles in harder. We re-glaze when the sash is still sound; we replace when the frame has racked.
- Wood rot at sills and jambs of CWS WoodClad units. Original paint gets deferred, moisture sits against the wood, and rot sets in from the bottom up. We see this on a lot of the 1940s – 1960s stucco homes in Marin City where exterior maintenance fell behind. Sometimes it’s a sill replacement and re-flash; sometimes the whole unit needs to go.
- Wind-driven rain infiltration at corner seals of CWS Coastal Series windows. During winter storms, sustained wind off the Pacific pushes water into any weak point. Hillside homes take the worst of it because they’re fully exposed to the prevailing weather. We re-seal with coastal-rated sealant and re-flash the opening if water has been getting behind the stucco.
- Racked openings from settling on slide-prone slopes. This one’s specific to Marin City. A CWS window set into a wall that has shifted slightly will leak no matter how well it’s sealed, because the unit itself is fighting the frame. We check for this on every hillside quote before we touch a single fastener.
CWS Service in Marin City: What Local Conditions Mean for Your Equipment
Marin City’s hillside streets above the 101 sit on slide-prone slopes where retaining walls and foundations crack after heavy rains. That’s not a casual observation; we’ve seen it in the field enough times to treat it as the default assumption on any hillside job. So any CWS window or door replacement we quote in Marin City includes checking that the opening itself hasn’t racked. A new unit set into a moving wall will leak no matter how well it’s sealed. This isn’t something a flatlands contractor in CWS repair in Belvedere would think to check, because flatlands contractors don’t deal with soil creep and 70-year-old hillside footings. We sister framing where needed, re-flash the opening, and then set the new CWS unit properly. One of our most memorable Marin City jobs was on a hillside street above the 101, where we replaced a set of fogged CWS Coastal Series vinyl windows in a 1950s wood-frame stucco home. The original aluminum sills had pitted from salt air off Richardson Bay, and the wall below one opening had racked slightly from settling. We sistered the framing, re-flashed the opening, and set new units with coastal-rated sealant. No more interior fogging or winter drips.
CWS Models & Products We Service in Marin City
Our CWS coverage spans the Coastal Series vinyl windows, aluminum sliding glass doors, fiberglass entry doors, and WoodClad windows. For any of these, we source OEM parts for CWS hardware and glazing when they’re available, and we specify quality aftermarket seals and rollers when factory lead times would leave you weather-tight but not functional. We stock the common seal profiles, roller sets, and corner gaskets that Marin City service calls typically need, which shortens turnaround on the most frequent repairs. If a unit needs a full replacement, our team handles window replacement and impact window installation under the same general contracting roof as the rest of your project. That’s how we work across the rest of our CWS sales & service footprint.
See the difference
Before
After
Before
After
Before
AfterCWS Service Pricing in Marin City
Here’s what Marin City homeowners can expect for CWS-related work. These ranges reflect what we see across San Mateo County, and your exact quote depends on access, opening condition, and the number of units.
| Service | Typical Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Roof Repair | $400 – $1,800 |
Window replacement covers a typical multi-window scope, and the spread depends on whether you’re going with Coastal Series vinyl or fiberglass entry units and how many openings need reframing. Impact window installation runs higher because the glazing and framing are heavier. Roof repair finds its way onto CWS jobs more often than you’d think, because Marin City’s winter rains expose roof leaks right around dormers and skylights where windows and roof planes meet. We handle that under the same contract. Every estimate is free, and it includes a look at framing, flashing, and the condition of the existing openings. Call (855) 901-7266 and we’ll schedule it.
Serving Marin City, CA — Our Local Coverage Area
We’re based in the Marin City 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 Marin City
Yes, we do. Marin City has a significant share of county housing authority and affordable housing complexes, and we’ve worked in several of them. These jobs typically involve mid-century wood-frame stucco construction with deferred maintenance on the exterior envelope, so we plan for framing repairs, asbestos-era materials, and access constraints on multistory walkups. The CWS product line works well in these settings because the Coastal Series handles bay exposure, but the real work is in the preparation: making sure the rough openings are sound before the new windows go in. Call (855) 901-7266 and we’ll walk the property with you, whether it’s one unit or thirty.
Marin City sits in a deeper fog pocket and gets more direct salt air off Richardson Bay than Tiburon CWS service areas or Sausalito’s flatter, more sheltered streets, so CWS window seals here face a harsher thermal cycle: damp, cool nights followed by warm afternoons pull the glazing apart faster. Add to that the age of Marin City’s housing stock, much of it built between the 1940s and 1960s, and you have a lot of original or early-replacement windows reaching seal failure at the same time. It’s not a product defect; it’s geography and time. Our estimate will tell you whether re-glazing makes sense or whether replacement saves money. Call (855) 901-7266 for a look.
Yes, and this is where our Marin City hillside experience matters. We check the opening for racking before we order or install anything. If the foundation has settled enough to throw the rough opening out of square, a new CWS sliding door will bind and leak regardless of how well it’s sealed. We’ll sister framing, re-level the track area, and sometimes work with a soils or foundation engineer if the settlement is active. Then we set the door with coastal-rated sealant and a properly flashed threshold. Call (855) 901-7266 for an exact assessment of your door and wall condition.
Salt air accelerates corrosion on the anodized aluminum tracks and roller hardware, especially on homes facing Richardson Bay. The anodizing pits, the rollers pick up friction, and the door starts binding, then drags water across the threshold when it does move. We clean and re-lubricate tracks where the metal is still sound, and we replace rollers and hardware when they’ve gone too far. In some cases it makes sense to swap to an aftermarket roller with sealed bearings that hold up better to constant salt exposure. Call (855) 901-7266 and we’ll assess whether your track is salvageable.
For a typical 1940s – 1960s stucco home in Marin City, you’re usually looking at $4,500 to $15,000 for window replacement, depending on how many openings you have and how much reframing is needed. Many of these homes have original wood framing that has moved or rotted at the sills, so the quote often includes some structural repair before the CWS units go in. Impact window installation runs $8,000 to $25,000 if you’re upgrading for storm or debris protection. Every quote is free, and it includes a framing check. Call (855) 901-7266 for a line-item estimate.
Service Areas Near Marin City
We cover Marin City and the surrounding San Mateo County communities, including San Mateo, Burlingame, Foster City, Hillsborough, and Belmont. For other parts of the Bay Area, see Marin City service area coverage details. If you’re further south, we also offer CWS service in Milpitas and CWS service in Santa Clara.
Book Your CWS Service in Marin City Today
Whether it’s a fogged Coastal Series window on a hillside street or a salt-bound sliding door near the bay, we’ll give you an honest read on repair versus replacement. Tell us what you actually need, and we’ll figure out the right way to build it. Call (855) 901-7266 to schedule your free estimate.
Written by Noel Carrington, Owner at San Mateo Construction, serving Marin City and San Mateo County.