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CGI Construction in Montara, CA | Seaside Contractors
We provide independent CGI construction service across Montara, CA, covering exterior cladding, windows, doors, and the roofing assemblies that tie into them. The thing that makes our CGI work here different is that we plan every job around salt spray, blowing sand, and fog that rarely burns off before noon. If you’re looking at CGI siding, trim, or window work in Montara, call (833) 589-8103 for a free estimate. We’re a licensed general contractor, and we’re not affiliated with or authorized by CGI.
Why Montara Residents Choose Us for CGI Service
CGI makes solid fiber-cement cladding and impact-rated window lines, but their coastal performance depends on the contractor who details them. We’ve worked CGI products on enough Montara homes to know where they hold up and where they don’t, and we’ve handled similar Moss Beach CGI service calls with the same coastal wear patterns. The west-facing wall on a bluff-top cottage gets sandblasted in a way a north-facing wall two blocks inland never does. Glen Sorrento, our owner, studied building construction technology at College of San Mateo and spent more than two decades working the Peninsula’s coastal and bayside projects. That background shapes how we approach CGI service here: marine-grade fasteners where the factory standard won’t survive, sealants that can cure in fog, and honest guidance on when a repair is smarter than a replacement.
We’re an independent CGI service provider serving all of Montara’s 94037 zip code. That independence matters because we don’t have to defend a product line. If a CGI assembly is failing because of how it was originally installed, we’ll tell you. If it’s failing because sand ate the finish, we’ll tell you that too, and then we’ll fix it so it doesn’t fail the same way again.
Styles & brands we work with







Common CGI Construction Problems We Solve in Montara
Here’s what we see most often when we’re called out to CGI-clad homes in Montara:
- Sand-abraded siding and trim on west-facing walls. Wind-driven sand steadily wears the finish off CGI lap siding and trim boards, then fog moisture sits in the roughened surface. The damage shows up as soft substrate behind the cladding before you ever see a visible crack. By the time most homeowners notice the siding looks dull, water has already been working behind it.
- Corroded fasteners on ocean-facing elevations. Salt-laden fog attacks CGI fasteners and trim nails faster than the cladding itself. Galvanized hardware on the seaward side of a Montara home can corrode and back out years ahead of the same assembly a few miles inland. We replace these with stainless or hot-dip galvanized hardware rated for coastal exposure.
- Grit-laden window and door tracks. CGI impact-rated vinyl and aluminum window lines collect salt film and fine sand in their tracks and weep holes on the windward face. Seals and hardware degrade while the frames still look fine from the street. If your CGI windows are sticking or the weep holes won’t drain, don’t force them.
- Weathered rainscreen and weather-barrier accessories. CGI flashings, sealants, and trim coil on west-facing walls take a beating from blowing sand and constant moisture. Once the sealant joints open up, water gets behind the weather barrier and works its way into the sheathing. The fix is re-flashing and re-sealing with products that can handle Montara’s marine exposure.
- Failed deck ledger connections and trim on CGI-clad exteriors. Where CGI siding meets deck ledgers or roof transitions on the ocean side of town, the ledger boards and fasteners can fail years earlier than inland assemblies. We re-detail those transitions with coastal-grade connectors and proper flashing so the cladding and the structure both drain correctly.
If you’re seeing any of these issues on your Montara home, call (833) 589-8103. The sooner we look at it, the less wall we typically have to open up.
CGI Service in Montara: What Local Conditions Mean for Your Equipment
Montara’s fog and onshore wind create far fewer dry, low-humidity work windows than inland Peninsula crews plan for, so exterior CGI cladding, window flashing, and roofing sealant work has to be scheduled around drying and wind conditions rather than simply around the calendar. A sealant that needs 48 hours of dry weather to cure properly can’t be applied on a Tuesday in June just because the calendar says it’s summer. We watch the marine layer, check dew points, and schedule exterior work for the windows when the west-facing wall of your house will actually stay dry long enough for materials to do their job.
That’s the part of Montara CGI work that doesn’t show up in a bid from a contractor who mostly works in San Bruno or South San Francisco, where a hot afternoon is a normal thing. Here, blowing sand has often scoured the finish off CGI coil trim and siding on windward elevations before the homeowner notices anything more than a chalky look. Once the surface is roughed up enough, fog moisture sits in it and mildew takes hold. On a fog-belt beach cottage near the bluffs, our crew pulled CGI lap siding and trim off a west-facing wall where blowing sand had worn the finish down and fog moisture had softened the substrate behind it. We re-sheathed with a proper weather barrier, re-clad with CGI fiber-cement siding on stainless fasteners, and re-flashed the CGI windows on that elevation. The homeowner got a wall that will hold up to salt and sand instead of another patch that fails in a few seasons.
We also handle CGI sales & service differently for Montara homeowners because the product has to be ordered with the right coastal details from the start. That’s the conversation we have before we ever open a wall.
CGI Models & Products We Service in Montara
We service the full range of CGI exterior systems: fiber-cement lap siding and trim boards, impact-rated vinyl and aluminum window and door lines, rainscreen and weather-barrier accessories including flashings, sealants, and trim coil, and coastal-grade fasteners and connectors in stainless and hot-dip galvanized. Our approach on parts is simple. We match CGI cladding and trim with the specified factory components where they exist, and we substitute marine-grade stainless or hot-dip galvanized fasteners and sealants when the factory-standard hardware won’t survive Montara’s salt exposure. Our CGI in Pacifica jobs see nearly identical conditions. On a coastal assembly that’s already chalky, soft, or corroded, honest replacement usually beats patching. We keep the fasteners and sealants we need for coastal work on order routinely, which helps keep Montara turnaround shorter than waiting on a supply house run from over the hill.
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AfterCGI Service Pricing in Montara
CGI service pricing in Montara depends on how much of the assembly has to come apart, how much re-sheathing is needed behind the cladding, and whether the work is on an ocean-facing elevation that requires stainless hardware and marine-grade sealants. Here are the current ranges we’re quoting for the most common CGI-related jobs:
| Service | Price Range |
|---|---|
| Roof Repair | $400 – $1,800 |
| Window Replacement | $4,500 – $15,000 |
| Full Bathroom Remodeling | $9,000 – $28,000 |
What drives the cost is what we find once the cladding comes off. If the sheathing behind CGI siding is soft from years of fog moisture getting past failed sealant, that’s additional sheathing and weather-barrier work. We give written line-item estimates so you can see exactly what’s included before you commit. Call (833) 589-8103 to schedule a free estimate.
Serving Montara, CA — Our Local Coverage Area
We’re based in the Montara area and know this community well, and we also cover CGI in Half Moon Bay just south. Use the map below to see our full service coverage — if you’re nearby, we can almost certainly help.
FAQs – CGI Construction in Montara
Because that’s the elevation that takes the direct hit from wind-driven sand and salt spray off the Pacific. Sand abrades the finish and salt-laden fog works into any opening in the sealant. We re-flash and re-clad west-facing walls with marine-grade fasteners and coastal-rated sealants so the repair outlasts the original installation.
Yes. The factory-standard hardware on CGI windows often can’t handle years of salt film and grit accumulating in tracks and weep holes. We specify stainless or hot-dip galvanized replacement hardware on ocean-facing elevations and re-route drain paths so sand and salt don’t sit against the frame. Call (833) 589-8103 if your CGI windows are sticking or leaking on the seaward face.
Yes, but scheduling matters more than it does inland. Roof sealant, flashing, and the transition between CGI siding and the roofline all need dry-enough weather to cure properly. We work around the fog window and onshore wind rather than fighting them, which is why we sometimes ask to schedule a half day instead of a full one. The work gets done right.
Make sure the framing and wall assembly behind the CGI cladding is sound and properly flashed, not just the interior. A bathroom remodel on the ocean side of a Montara home is the wrong time to discover the sheathing is soft behind the tile backer. We inspect the exterior assembly and the waterproofing behind the wall before any finish material goes in.
We can’t honor a manufacturer’s warranty because we’re not authorized by CGI. We’re an independent contractor. What we can do is install and repair using factory components where they exist and marine-grade substitutions where they don’t, and we’ll document every step so you have a clear record for any manufacturer claim you want to pursue.
Service Areas Near Montara
We serve Montara service area and the surrounding communities along the San Mateo County coast and the inland corridors. That includes CGI service in CGI service in San Bruno and CGI service in South San Francisco for homeowners whose properties face different wind and salt patterns but still need CGI work done carefully. If you’re in Watsonville, Pajaro, Freedom, Interlaken, or the nearby coastal pockets, we’re glad to look at your project.
Book Your CGI Service in Montara Today
If you’re planning CGI service in Montara, let’s figure out what the job actually needs, then we’ll talk materials. Call (833) 589-8103 to schedule a free estimate, or reach out through our website and we’ll get you on the schedule.
Written by Glen Sorrento, Owner at Seaside Contractors, serving Montara, CA and the San Mateo County coast since 2012.