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PGT Construction in Marin City, CA | Milpitas Construction
We provide independent PGT window and door service across Marin City, from impact-rated WinGuard replacements to slider track rebuilds on older hillside homes. What makes our PGT work different here is simple: we know how PGT coastal assemblies actually fail in Marin City’s fog-belt conditions, and we know which permit desk actually has jurisdiction over your job. That combination saves Marin City homeowners time, money, and a lot of phone calls. Call (877) 752-4194 for a free estimate.
Milpitas Construction handles full-scope PGT sales & service, from window replacement and impact window installation to the roof repair that often accompanies a failed PGT opening on an older Marin City home. We spec materials by name, so you know exactly what’s going into your home.
Why Marin City Residents Choose Us for PGT Service
Most contractors in Marin County see PGT as just another window brand. We don’t have that luxury. We’ve spent years pulling, re-glazing, and re-hanging PGT aluminum and vinyl windows and sliders across southern Marin, including PGT repair in Belvedere, so we know how their coastal-rated assemblies actually age in fog-belt conditions. Ken Stafford, our owner, grew up near the Milpitas BART station when that corridor was still mostly warehouse lots, and he built his trade on the idea that a contractor should know exactly why a product fails before he charges you to fix it. Build it right the first time – the Bay Area doesn’t give you a free pass on shortcuts.
We’re an independent shop with no factory authorization. That matters more than it sounds. We’re not obligated to push a particular product line or upsell a full replacement when re-glazing and re-sealing does the job. We source OEM PGT rollers, weatherstripping, and glazing where available, and use matched-quality aftermarket hardware when factory parts are discontinued. The goal is the right repair, not the convenient one.
Styles & brands we work with







Common PGT Construction Problems We Solve in Marin City
PGT builds coastal-rated products, but Marin City’s specific microclimate off Richardson Bay stresses them in predictable ways. Here’s what we see most often:
- Slider track corrosion and pitting. Salt-laden damp air off the bay eats at PGT aluminum slider rollers and tracks, leaving doors that grind, stick, or refuse to move. This is the single most common PGT failure we fix in Marin City.
- Weep hole and track corner water intrusion. Marine-layer fog and winter rain drive condensation and water into PGT slider weep holes and corners, causing sill rot on older wood-framed openings. By the time you see staining, the damage is usually already underway.
- Fogged laminated impact glass. PGT WinGuard laminated units lose their seal on fog-belt exposures, showing that milky fog between panes. It’s cosmetic at first, but a failed seal means the impact rating is compromised whether you can see it or not.
- Hardened, shrunk weatherstripping. Perimeter weatherstripping on PGT units hardens and shrinks in the damp-cool cycles Marin City gets year-round, leaving gaps that whistle in wind and let fog moisture seep past the sash.
- Retrofit flange gaps on older homes. Original WWII-era stucco and wood-frame homes with PGT retrofit inserts show air and water gaps at the flange where hillside settlement and seasonal movement open the perimeter seal.
PGT Service in Marin City: What Local Conditions Mean for Your Equipment
Marin City is an unincorporated county island surrounded by Sausalito, and that jurisdictional quirk shapes every PGT window or door replacement here. A PGT job on a Marin City home is permitted through Marin County, not a city building department. Jobs that look Sausalito-adjacent off Drake Avenue or Cole Drive often aren’t. Getting the jurisdiction right before ordering impact units is its own skill, and it’s one we’ve had to learn the hard way. On a hillside home off Drake Avenue, we pulled a set of fogged PGT WinGuard aluminum sliders whose tracks had pitted from years of Richardson Bay damp. We re-glazed the failed laminated units, replaced corroded rollers and weatherstripping, and re-flashed and re-sealed the openings where winter runoff from the slope had worked water past the perimeter seals. The doors slid clean and stopped weeping before the next rain season. That job started as a window repair and ended as a small drainage correction, because in Marin City the hillside and the window opening are rarely separate problems.
PGT Models & Products We Service in Marin City
We work on the PGT lines most Marin City homes already carry: WinGuard Aluminum impact windows, WinGuard Vinyl impact windows and sliding glass doors, Premier Aluminum series, and Sentinel by PGT vinyl windows. Our parts approach is straightforward. We use OEM PGT components where the factory still supports them, and we keep a local stock of rollers, weatherstripping, and glazing materials sized for fast Marin City turnaround. When a PGT unit is worth re-glazing and re-sealing, we say so. When full replacement is the smarter spend on a fog-belt exposure, we’ll tell you that too, with the numbers to back it up.
See the difference
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AfterPGT Service Pricing in Marin City
PGT service costs in Marin City track the scope of the job, not the vagueness of the estimate. What drives the price: whether we’re re-glazing a single sash or replacing a full opening, whether the surrounding frame needs rot repair from fog-belt moisture, and whether hillside drainage work is needed to keep water from returning. Every estimate includes a written line-item breakdown and a fixed price with no change orders. Here’s what you’re looking at:
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Roof Repair | $400 – $1,800 |
Call (877) 752-4194 for an exact quote. Estimates are free, and we’ll walk the property with you before we put anything in writing.
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 – PGT Construction in Marin City
Marin County. Marin City is unincorporated, so PGT window and door replacements are permitted through Marin County, not the city of Sausalito, even when the job sits close to the Sausalito line. We pull the permits and know which desk to call, so you don’t spend a week chasing the wrong jurisdiction. Call (877) 752-4194 and we’ll confirm the permit path for your specific address before we order anything.
Salt-laden damp air off Richardson Bay corrodes and pits PGT aluminum slider rollers and tracks, which is the most common reason Marin City sliders start binding. We replace corroded rollers, clean and rebuild the track, and re-seal the weep holes so the door slides clean and drainage works. If the track is too far gone, we’ll quote a replacement and show you the old track so you can see the damage yourself.
Yes, in most cases. A failed seal on a PGT laminated unit means the glass package gets replaced, not the whole frame, as long as the frame and perimeter seal are still sound. On fog-belt exposures in Marin City, we also check the perimeter weatherstripping and frame for rot while the sash is out, because moisture that fogged the glass usually got past the seal somewhere. Call (877) 752-4194 and we’ll tell you whether re-glazing or full replacement makes more sense for your unit.
Sometimes, yes. Hillside runoff off Cole Drive and the surrounding slopes can funnel winter storm water against lower-lying home foundations and window openings, and that water works past PGT perimeter seals over time. If you need Tiburon PGT service for similar hillside drainage issues, we handle those too. On hillside Marin City lots, we often find the window leak is actually a drainage problem showing up at the window. That’s why we look at the slope and the opening together before quoting a repair.
Yes. Many Marin City homes are mid-20th-century stucco and wood-frame builds where water intrusion at a PGT opening connects to roof edge or flashing issues above it. We handle roof repair and window replacement under one contract, which means one crew, one permit set, and no finger-pointing between trades. Call (877) 752-4194 for a free estimate that covers the whole opening, from roofline to sill.
Service Areas Near Marin City
We serve Marin City and the surrounding areas, including Marin City service area coverage throughout 94965. For homeowners further out, we also provide PGT service in San Juan Bautista and PGT service in Castroville. If you’re in Prunedale, Silver Lakes, or Piñon Hills, we can usually schedule a drive-by assessment within a few days.
Book Your PGT Service in Marin City Today
If your PGT windows or sliders are showing fog-belt wear, don’t wait until the next storm season. Call (877) 752-4194 and we’ll schedule a free estimate at your Marin City home, walk the openings with you, and give you a written quote with no change orders.
Written by Ken Stafford, Owner at Milpitas Construction, serving Marin City and the surrounding southern Marin communities.