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PGT Construction in Los Altos, CA | San Bruno Construction
We provide independent PGT window and door service across Los Altos, from single-unit sash repairs to full-home impact glazing on additions and rebuilds. The thing that makes our PGT work here different is simple: most window companies don’t understand Los Altos design review, and most general contractors don’t understand PGT hardware. We do both. Call (866) 472-1908 for a free estimate on any PGT repair, replacement, or new-install scope.
Why Los Altos Residents Choose Us for PGT Service
PGT windows show up all over the custom rebuilds and second-story additions that dominate Los Altos construction, and when something fails, homeowners don’t want a sales pitch for a full replacement. They want to know whether the unit can be saved. Noel Carvalho runs our PGT services the same way he runs every project: look at the frame, look at the glass, check the hardware, and tell you the truth about what’s worth fixing.
We’ve worked on enough WinGuard, Premier Vinyl, and multi-slide installations across the Peninsula to know which failures repeat and which are one-offs. We stock OEM PGT balances, sash hardware, and weatherstripping for current-production units, and we keep quality aftermarket IGUs on hand for discontinued lines. When you need PGT service in Los Altos Hills or Los Altos, you get a crew that knows the product and knows the city.
Styles & brands we work with
Common PGT Construction Problems We Solve in Los Altos
- Fogged insulating glass units on WinGuard windows. This is the call we get most often. After a decade of Los Altos sun on south- and west-facing exposures, the seal fails and moisture gets between the panes. The frame is usually fine. We replace the IGU, not the window.
- Sash balance and pivot-shoe failure on double-hungs. The factory hardware wears out, and suddenly the sash won’t stay up. On 1950s ranch homes in Los Altos where original PGT units are still in service, this is a routine repair with OEM parts.
- Rotted or cracked sills. Winter atmospheric-river storms drive rain directly into weathered sills, especially on the windward side of a home near the Santa Cruz Mountain foothills. If the sill is gone, so is the frame. We’ll tell you straight whether it’s repair or replace.
- Water intrusion at multi-slide patio-door tracks. On Los Altos additions where the threshold is set flush to a new floor, the factory weep holes can’t shed water when the grade slopes toward the house. We re-set the threshold or add drainage before the water gets into the subfloor.
- Haze and delamination on impact glazing. WinGuard units with damaged interlayers don’t always fog. After a wet season, they show a milky haze at the edges. A visual inspection catches it early, before it spreads across the whole pane.
PGT Service in Los Altos: What Local Conditions Mean for Your Equipment
Los Altos lot-coverage and floor-area-ratio limits mean that almost every addition or second story changes which walls are exterior walls, and the window schedule has to be rebuilt to match. New PGT units get sized and placed to satisfy the city’s design review, not the original ranch layout. That sounds obvious until you’re standing in a 1950s Eichler-era home off El Camino Real where the original window openings no longer line up with the new floor plan. The front glazing line often has to stay exactly where it was to pass review, which means matching new PGT WinGuard units to existing openings that were framed for a different house. A contractor who only sells windows will order whatever fits the plans. A Los Altos General Contractor who knows the area will walk the site, look at what the city is going to ask for, and order the right glass before the plans are even stamped. That’s the difference between a project that gets through design review and one that stalls for six weeks.
PGT Models & Products We Service in Los Altos
We service the full PGT residential lineup, including WinGuard Aluminum impact windows and doors, WinGuard Vinyl single-hungs and double-hungs, Premier Vinyl casements and awnings, and aluminum multi-slide patio doors. For units still in production, we use PGT OEM balances, sash hardware, weatherstripping, and glazing. When the OEM part has been discontinued, we source quality aftermarket balances and IGUs that match the original specs. On Los Altos ranch and Eichler-era homes where the frames are sound, we lean toward glazing and hardware repair. When frames or sills are failing, we recommend full replacement.. The rebuild grade and wall depth here usually decide it.
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AfterPGT Service Pricing in Los Altos
What you’ll pay depends on whether we’re repairing a single unit or replacing a full window schedule. Here’s where the numbers land for Los Altos projects:
| Service | Typical Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Home Addition (includes window schedule) | $45,000 – $130,000 |
Repair work on a single sash balance or a replacement IGU runs well below those replacement ranges, usually a few hundred dollars depending on the unit. Every estimate is free, and we give you a written line-item quote before any work starts. Call (866) 472-1908 to schedule a walkthrough.
Serving Los Altos, CA — Our Local Coverage Area
We’re based in the Los Altos area and also provide PGT service in Stanford, so we 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 Los Altos
Sometimes yes, sometimes no. If the frames are sound and the glazing is intact, we can retain and re-set the existing PGT units, then match new units to the same openings for the addition. But Los Altos design review often requires the front glazing line to stay visually consistent, which means retained windows need to match the new ones in style and proportion. If your original units are a discontinued PGT line, that match gets harder. If the frames are failing, keeping them costs more in the long run than replacing them up front. Call (866) 472-1908 and we’ll tell you which path makes sense for your project.
Fogging means the insulating glass seal has failed and moisture is now between the panes. On WinGuard units, this is usually a failed edge seal after years of direct Los Altos sun on south- and west-facing walls. The fix is an IGU replacement, not a whole new window, as long as the frame is still sound. We do IGU swaps on PGT units regularly, and we’ll show you the difference between a normal seal failure and the delamination haze that impact glazing sometimes develops.
It matters less for storm protection and more for everything else the glazing does. Impact-rated glass handles thermal stress better, blocks more UV, and adds real security against break-ins. On Los Altos hillside-adjacent lots where wind-driven rain hits the house hard during winter storms, the extra structural rigidity also helps the unit hold its seal longer. You’re not buying hurricane protection here. You’re buying a window that survives the Peninsula climate and the sun without fogging in year six.
They affect placement, sizing, and sometimes the exact frame style you can use. Los Altos design review cares about the front elevation, the glazing line, and how the new windows read from the street. If you’re replacing like-for-like on an existing house, the review is usually straightforward. If you’re adding square footage or changing the footprint, the window schedule gets reviewed as part of the larger entitlement. We coordinate with your architect or designer so the window spec clears review the first time. Call (866) 472-1908 and we’ll walk the site with you before you submit anything.
Usually yes. The most common cause of a leaking PGT multi-slide track in Los Altos is a threshold set flush to a new floor with no way for water to escape the track. We re-set the threshold with proper drainage weep, and in most cases that solves the leak without touching the door panels. If the track is bent or the rollers are shot, we replace those components. The full door only gets replaced when the frame itself has water damage or the panels have failed. Call (866) 472-1908 and we’ll diagnose it before you spend a dollar.
Service Areas Near Los Altos
We work across the Peninsula from our San Bruno base, including Los Altos service area neighborhoods in 94022, 94023, and 94024. We also serve PGT service in Mountain View and PGT service in Loyola, plus surrounding communities along the 280 and 101 corridors. If you’re in the wider 94022/94024 zone, we’re already nearby.
Book Your PGT Service in Los Altos Today
Call (866) 472-1908 to schedule a free estimate on any PGT repair, replacement, or new-install scope in Los Altos. We’ll come out, look at the units, and tell you exactly what needs to happen and what it costs. Same-day scheduling is available for active leaks and failed units that are letting water into the house.
Written by Noel Carvalho, Owner at San Bruno Construction, serving Los Altos and the greater Peninsula since 2002.