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CGI Construction in El Granada, CA | Iron Beam Contractors
We install, repair, and replace CGI windows and doors throughout El Granada as your local El Granada General Contractor. We’re an independent construction firm, not a manufacturer arm, and our CGI work here is shaped by one thing above all: salt-laden marine air that eats aluminum frames and rots wood cladding faster than almost anywhere in San Mateo County. Call (833) 756-5936 for a free estimate on CGI window replacement, impact window installation, or storm-adjacent roof repair in El Granada.
Why El Granada Residents Choose Us for CGI Service
We’ve torn apart enough corroded CGI frames in El Granada to know exactly where these products fail and how to stop it. Nolan Driscoll, who runs Iron Beam Contractors, learned structural work the slow way: two-plus decades of framing, pouring, and fixing what salt air does to coastal homes. He’ll tell you what’s inside the wall before we open it, not after.
Our work with CGI sales & service spans the Series 2000 aluminum line, Series 4000 vinyl, and Series 6000 wood-clad windows. We know the Series 2000 frames, in particular, pit and corrode within a decade when sea spray is constant. That’s not a guess. That’s what we see on El Granada beach cottages every year.
We spec stainless-steel fasteners on every coastal install. We flash openings to handle wind-driven rain off the Pacific. And we don’t sell replacement when a seal repair is possible. If the frame is sound, we fix the frame. If the corrosion has compromised the extrusion, we say so plainly.
Styles & brands we work with







Common CGI Construction Problems We Solve in El Granada
- Pitted and corroded aluminum frames on mid-century homes. Series 2000 aluminum windows on 1940s-to-1970s El Granada cottages take a beating from persistent fog. Salt gets under the finish, pitting starts, and the glazing seal fails. Water follows the channel and soaks the sill. We remove, inspect the rough opening, and replace the unit with proper flashing.
- Brittle vinyl components on Series 4000 windows. UV plus salt spray makes vinyl weatherstripping harden and crack. The window still closes, but it doesn’t seal. In El Granada, that means fog creeps in and condensation forms on the inside face. We rebuild the weatherseal or replace the sash, whichever holds up longer.
- Rotting wood cladding on Series 6000 wood-clad units. South and west exposures on El Granada homes face wind-driven rain most directly. Wood cladding stays damp through long fog cycles. Clad rot goes deeper than it looks at first. We cut out the punky wood, sister new stock, and re-flash before the replacement goes in.
- Binding and corroded sliding door tracks. Salt and grit from beach winds accumulate in the bottom track. Rollers bind, then seize. Eight out of ten El Granada patio doors we see have some level of track corrosion. We can often clean and replace rollers. When the track itself is eaten through, we replace the door.
- Water intrusion around existing openings. Most water damage we find in El Granada isn’t the window’s fault. The original flashing was never detailed for coastal rain. We correct the drainage plane, lap the housewrap properly, and set the new CGI unit so water drains to the exterior, not the wall cavity.
CGI Service in El Granada: What Local Conditions Mean for Your Equipment
Here’s the thing a generic window contractor won’t tell you: much of El Granada was platted as Ocean Shore Railroad-era beach lots. Parcels are undersized. Many are nonconforming. A window replacement that changes the opening size can trigger a coastal development permit review, even one that wouldn’t in neighboring Half Moon Bay or Montara. That’s why we approach CGI retrofits with a measured-eye strategy: design the replacement to match the existing rough opening exactly. Same opening dimensions. Same setbacks. No permit trigger. You still get corrosion-resistant frames, modern laminate glass, and tight seals. You just skip the three-to-six-month planning review. We’ve done it on homes up and down Avenue Alhambra and the streets off Coronado, and it has saved El Granada homeowners real time.
On a 1950s beach cottage in the Miramar neighborhood, we replaced a set of corroded CGI Series 2000 aluminum windows that had obvious salt pitting and dead seals. After pulling the old units, we found dry rot in the studs below both side windows. We cut out the rot, sistered the framing, re-flashed the rough opening with butyl tape, and set the replacements into the wall with stainless-steel screws. That homeowner now has operable windows that actually keep the coastal fog outside. That’s the standard.
CGI Models & Products We Service in El Granada
We service the full CGI residential construction line we encounter in El Granada homes: Series 2000 Aluminum Windows, Series 4000 Vinyl Windows, and Series 6000 Wood-Clad Windows. Our parts approach is straightforward. For current or recent production runs, we order OEM replacement sashes, balances, and hardware to keep tolerances exact. For older or discontinued lines where OEM is no longer supplied, we source aftermarket components that match or exceed the original extrusion profile. We keep common CGI hardware in stock locally for faster El Granada turnaround, so a warped sash or dead balance doesn’t leave a coastal home open to fog for weeks.
See the difference
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AfterCGI Service Pricing in El Granada
CGI-related work in El Granada lands within predictable ranges, though final numbers depend on opening counts, whether rot repair shored up the framing, and permit status. Here’s what we quote against:
| Service | Typical Range in El Granada |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Roof Repair | $400 – $1,800 |
Every estimate we give is line-item, not a ballpark phone call. We list the windows, the flashing, the trim, and the disposal separately. That’s the only way a homeowner can compare us to another bid honestly. Call (833) 756-5936 and we’ll come out, measure, check the rough openings, and tell you what’s really needed.
Serving El Granada, CA — Our Local Coverage Area
We’re based in the El Granada 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 – CGI Construction in El Granada
Can you replace just the glass in my CGI aluminum windows, or do I need full replacement?
If the frame extrusion is sound, we can replace the insulated glass unit alone, and that’s often enough for a seal failure, a fogged sash, or a cracked pane. If the aluminum has corroded through, pitted deeply, or warped the glazing channel, replacement is the honest call. Call (833) 756-5936 and we’ll assess it in person.
Do I need a coastal permit to replace my windows with CGI products in El Granada?
In many cases, no, if the replacements match the existing opening dimensions exactly. Because so many El Granada parcels are nonconforming beach lots, changing the size of an opening can trigger a coastal development review. We design CGI retrofits to match existing openings whenever possible to avoid that delay entirely.
How does the marine air affect CGI vinyl windows compared to aluminum?
Aluminum corrodes. Vinyl doesn’t. That’s the short answer. The longer answer is that El Granada’s persistent salt fog pits aluminum Fasteners, frames, hinges, everything. Vinyl shrugs off salt, but the UV from those same coastal exposures makes the vinyl and its weatherstripping brittle over time. Both materials have a failure mode here; it’s just a different one.
What’s the typical lifespan of CGI windows in El Granada?
For aluminum-framed units within three blocks of the ocean, we see failure at ten to fifteen years if they weren’t kept clean and waxed. Vinyl-framed units can go longer, but weatherstripping usually needs replacement every eight to ten. Wood-clad windows require the most maintenance and often rot first on southwest exposures.
Can you repair a corroded CGI sliding door track, or is replacement necessary?
When the track is pitted but structurally intact, we can clean the channel, replace the rollers, and often restore smooth operation. If the aluminum has corroded through or is breaking in sections, replacement is the only safe fix. Call (833) 756-5936 and we’ll tell you which one yours is.
Service Areas Near El Granada
We serve the full El Granada service area, plus the surrounding coastal and inland communities. Clients from CGI service in Millbrae and CGI service in Moss Beach also call us for coastal-window and door work. We’re active along the 92 and Highway 1 corridors, from Pacifica through Half Moon Bay and down toward San Gregorio.
Book Your CGI Service in El Granada Today
If the structure makes sense on paper, it’ll hold in the field. If it doesn’t make sense on paper, we fix it before we touch a beam. If you’ve got corroded CGI windows, a binding slider, or fogged glass in El Granada, let’s get eyes on it. Call (833) 756-5936 to schedule your free, line-item estimate.
Written by Nolan Driscoll, Owner at Iron Beam Contractors, serving El Granada, CGI in Hillsborough, and the broader San Mateo County coast.