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 Moss Beach, CA | Iron Beam Contractors
We’re Iron Beam Contractors, and we provide independent CWS building product service across Moss Beach. We install, repair, and replace CWS windows, doors, and roofing systems in the harshest salt-air environment on the San Mateo County coast. The one thing that makes our CWS work here different is that we plan every job around corrosion, wind-driven rain, and fog-belt moisture from day one, not as an afterthought. If your CWS doors or windows are failing, call us at (833) 756-5936 for a free estimate.
Why Moss Beach Residents Choose Us for CWS Service
We’ve worked exclusively along the San Mateo County coast for over a decade, and that concentrated experience means we’ve seen how CWS products actually perform in Moss Beach, not how they perform in a showroom. We know the WeatherSeal door series, the CoastalGuard impact-rated window line, and the ThermProtect sliding glass doors well enough to diagnose a salt-corrosion problem before we even pull the trim. Nolan Driscoll, our owner, built Iron Beam Contractors on telling homeowners exactly what’s in the wall before we open it. That’s how we approach every CWS service call in Moss Beach. We show you the pitted rollers, the failed threshold flashing, the rot behind the casing, and then we give you straight options: repair what’s sound, replace what isn’t. No vague recommendations, no manufactured urgency.
We’re an CWS sales & service provider in the field, not a manufacturer affiliate. That independence means our advice to Moss Beach homeowners comes from what we see in the field, not from a corporate service bulletin.
Styles & brands we work with







Common CWS Construction Problems We Solve in Moss Beach
Moss Beach’s coastal conditions create a specific set of failure modes for CWS products. Here’s what we deal with most:
- Salt-air corrosion on CWS aluminum window frames and hardware. Within three to five years of installation within a half-mile of the shoreline, we routinely find pitted frames, seized rollers, and locks that won’t turn. This isn’t a manufacturing defect; it’s what happens when marine air meets aluminum in Moss Beach.
- Wind-driven rain infiltration through CWS WeatherSeal door thresholds and sweeps. West-facing entries take the worst beating. Onshore gusts push rain sideways under the sill, and once water gets past the sweep, it saturates the subfloor. The fog keeps it wet for months, and rot follows.
- Fog-belt condensation and wood rot around CWS window and door rough openings. Older Moss Beach beach cottages often lack proper flashing and back-venting. Warm interior air meets cold, damp wall cavities, condensation forms, and the framing around CWS units rots from the inside out.
- UV and salt degradation of CWS vinyl and sealant components. Sun-exposed decks and entry doors get the double punch of UV breaking down sealants while salt accelerates the brittleness. The result is cracked seals and water intrusion behind trim.
- Failed flashing at CWS door and window perimeters. The same ocean wind that makes a Moss Beach deck pleasant in the afternoon drives rain sideways under siding and trim. Flashing details that would be fine in Half Moon Bay fail here because the wind angle and salt load are more aggressive.
CWS Service in Moss Beach: What Local Conditions Mean for Your Equipment
Moss Beach’s building stock includes many mid-century cottages with original single-pane aluminum windows and doors that were never designed for the salt fog. We routinely find CWS hardware corroded solid and frames pitted after just a few seasons. That level of decay is something inland contractors rarely encounter. A crew from San Bruno or San Mateo might see one or two salt-damaged windows in a year; we see them every week along Cypress Avenue, Nevada Avenue, and the streets running west toward the Fitzgerald Marine Reserve. The same patterns show up for CWS in El Granada, where salt fog hits almost as hard. The difference matters because it changes how we approach every job. We don’t just replace a seized roller and call it done. We check the entire unit for corrosion migration, test the threshold flashing, inspect the rough opening for rot, and recommend materials rated for coastal exposure. In Moss Beach, a CWS window or door is only as good as the detailing around it.
CWS Models & Products We Service in Moss Beach
We work on the full range of CWS residential products: the WeatherSeal exterior door series, CoastalGuard impact-rated windows, and ThermProtect sliding glass doors. Our parts approach is straightforward. We stock genuine CWS replacement parts for critical components like rollers, locks, and weatherstripping whenever available. When OEM parts are backordered, or when we know from field experience that a specific aftermarket part holds up better in Moss Beach’s salt air, we’ll use that instead and tell you why. For example, we often swap OEM steel rollers for stainless-steel aftermarket units on CWS sliding doors within a half-mile of the shore. The original rollers seize within a few seasons; the stainless units last far longer. It’s a small change that saves Moss Beach homeowners repeated service calls.
See the difference
Before
After
Before
After
Before
AfterCWS Service Pricing in Moss Beach
Expect CWS-related work in Moss Beach to land in these ranges:
| Service | Price Range |
|---|---|
| Roof Repair | $400 – $1800 |
| Roof Replacement | $8000 – $20000 |
| Metal Roof Installation | $15000 – $40000 |
Several factors move the number. Coastal-grade materials cost more than inland-rated ones. Wind bracing requirements on west-facing elevations add framing and hardware. Rot remediation in older Moss Beach cottages often means replacing rim joists or sill plates before new CWS windows or doors can be installed correctly. A free estimate from us includes a written line-item breakdown, so you’ll see exactly where the money goes before any work starts. Call (833) 756-5936 to schedule yours.
Serving Moss Beach, CA — Our Local Coverage Area
We’re based in the Moss Beach 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 Moss Beach
Persistent salt fog, high humidity, and onshore winds keep a constant film of saltwater on exterior surfaces in Moss Beach. That film works on aluminum frames and hardware year-round, even when it’s not raining. Inland homes get occasional rain but dry out between storms. Moss Beach homes rarely dry out fully. The fix is realistic expectations plus coastal-rated hardware, corrosion-resistant fasteners, and regular service intervals. Call (833) 756-5936 and we’ll tell you what your specific units need.
That depends on what’s seized. Hard-to-open CWS sliding doors in Moss Beach almost always mean salt corrosion on the rollers or track. If the frame is sound and the damage is isolated to hardware, we repair by replacing rollers and cleaning or rebuilding the track. If corrosion has compromised the frame’s structural integrity, replacement with a coastal-rated product is the honest call. We’ll show you the condition of the frame before recommending either path.
For Moss Beach, we recommend metal roofing as the strongest pairing with CWS windows and doors. Metal panels handle salt spray and wind-driven rain far better than asphalt shingles, and a properly flashed metal roof eliminates the drip-edge corrosion and underlayment saturation that damages wall assemblies below. GAF, CertainTeed, and Owens Corning lines are options, but metal remains our first recommendation near the shoreline. Our sub-services include Roof Repair, Roof Replacement & Installation, and Metal Roofing.
Within a half-mile of the shoreline, annual servicing is realistic. We check rollers, locks, weatherstripping, flashing, and frame condition, and we clean salt residue from tracks and thresholds. Further inland in Moss Beach, every two years is usually sufficient. Annual service catches small corrosion before it becomes a seized door or a rotted rough opening.
Yes. When a storm damages a CWS door or window in Moss Beach, water and wind are getting into your house. Call (833) 756-5936 and we’ll get a crew out, board up if needed, and schedule the permanent repair. Estimates are free.
Service Areas Near Moss Beach
We run CWS service throughout Moss Beach service area and the surrounding coastal and inland communities. If you’re in CWS service in Montara, just up Highway 1, we can be there the same day. We also cover CWS service in San Bruno for homeowners dealing with fog-belt moisture on the bayside. Other nearby areas include Laguna Woods, Laguna Hills, Portola Hills, Los Serranos, Mission Viejo, and Aliso Viejo.
Book Your CWS Service in Moss Beach Today
If your CWS windows, doors, or roofing are showing signs of coastal wear, don’t wait. Corrosion moves fast in Moss Beach. Call (833) 756-5936 to schedule your free estimate. We’ll give you a straight assessment and a written quote.
Written by Nolan Driscoll, Owner at Iron Beam Contractors, serving Moss Beach and the San Mateo County coast since 2009.