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PGT Construction in San Carlos, CA | Ashford Contractors
We provide independent PGT window and door service across San Carlos, from fogged-glass replacements on WinGuard sliders to full impact-window packages on two-story rebuilds. What makes our PGT work different here is that we know how these products actually behave on San Carlos’s small-lot, postwar ranch homes, where a window project has to survive the city’s own planning review, tight driveway staging, and a fog belt that punishes bad flashing. Call (877) 752-3868 for a free estimate. We handle PGT sales & service across the 94070 ZIP code, and we’re an independent contractor, not a manufacturer affiliate.
Why San Carlos Residents Choose Us for PGT Service
We have taken apart and rebuilt enough PGT units on Peninsula homes to know where the factory got it right and where installation habits cause problems years later. Glen Mossier, owner of Ashford Contractors, grew up in Foster City’s Marlin Cove and trained in construction technology at Skyline College, and he has spent two decades watching how Bay Area weather finds every shortcut in a window rough opening. That background shapes how we approach PGT work in San Carlos: we specify the right product for the exposure, set the flashing and drainage correctly, and never sell a replacement when an OEM sash or IGU restores the unit. We work across WinGuard, Designer Series, and Premiere Series lines, and because we are a full-scope general contractor in San Carlos, we can handle the framing, siding, and stucco repair around a window replacement without handing you off to a second company.
Styles & brands we work with







Common PGT Construction Problems We Solve in San Carlos
- Fogged or failed insulating glass on WinGuard and Designer Series units. Seal failure lets moisture into the airspace, and once the desiccant is saturated the glass fogs permanently. On San Carlos homes where windows face the marine layer off the coastal hills, this shows up earlier than on inland houses. We replace the IGU with an OEM PGT unit where available, keeping the original frame.
- Water intrusion at sill pans and jamb flashing on vinyl sliders and single-hungs. A lot of original installs on 1950s and 1960s San Carlos ranch homes relied on caulk instead of a proper pan flashing, and wet winters expose that within a few seasons. We fix the flashing, not just the symptom, because caulk alone will not hold against repeated rain cycles.
- Sticking or misaligned sashes and rollers after additions or gut remodels. When a second story goes on or walls get opened up, framing shifts, and a PGT slider that ran clean for 15 years suddenly binds. We see this regularly on the two-story rebuilds and ADU projects that dominate San Carlos construction. We reset the rough opening and replace worn rollers rather than forcing the sash.
- Weathered weatherstripping, weep-hole blockage, and hardware corrosion on aluminum WinGuard units. Salt-laden air off the bay works on aluminum frames over time, and weep holes clogged with debris from small lots with heavy landscaping turn into drainage problems. We clear the weeps, replace the seals, and swap corroded hardware before the frame itself is compromised.
- Out-of-square rough openings after foundation work or second-story tie-ins. San Carlos’s slab and shallow-penetration foundation homes move more than people expect, and an addition that ties into an existing wall can leave a window opening that is no longer plumb. We correct the opening or, where the frame is structurally sound, realign the sash with OEM parts.
PGT Service in San Carlos: What Local Conditions Mean for Your Equipment
San Carlos runs all construction approvals through its own planning and building department, not the county, and that changes how window and door work gets sequenced. The dominant project type in 94070 is a full remodel or second-story addition on a 6,000 to 8,000 square foot lot that is still occupied during construction. Neighbor privacy and light reviews are a routine part of the approval path, and since staging room is scarce on the flats around downtown and the Holly Street corridor, window packages often have to be broken into phases with materials delivered as they are installed, not stockpiled on site. For PGT owners this matters in a specific way: you cannot always rip out every window at once and expect the job to move fast. On a job off the Holly Street corridor, a crew of ours pulled original PGT WinGuard sliders with fogged IGUs and a sill that leaked every wet season because the rough opening was caulk-sealed instead of pan-flashed. We reset those openings with proper flashing and drainage, swapped in OEM PGT replacement sashes and new IGUs on the sound frames, and replaced the two that were out of square after the addition tied in. No more fog, and the sliders ran clean through the rainy season. That is the kind of sequencing and repair work this city’s housing stock demands.
PGT Models & Products We Service in San Carlos
We service the PGT lines that show up most often on San Carlos homes: WinGuard vinyl impact windows, WinGuard Aluminum impact windows and doors, Designer Series vinyl single-hungs and sliders, and Premiere Series vinyl windows and doors. Our default is PGT OEM replacement sashes, IGUs, rollers, and weatherstripping, because those parts preserve the original fit and finish. Where an OEM part is discontinued or the cost no longer makes sense, we use quality aftermarket glass or hardware. We keep common PGT IGU sizes and roller sets available for fast San Carlos turnaround, and if what we need is not on hand we can usually have it within a few days. If the frame, sill, or rough opening is compromised, we will tell you before we order parts, because a chronic leaker is not worth patching again.
See the difference
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AfterPGT Service Pricing in San Carlos
What you pay depends on the scope: a single IGU replacement is a straightforward parts-and-labor job, while a full impact-window retrofit on a two-story addition involves framing, flashing, and finish work. Here are the ranges we quote most often on San Carlos projects:
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Home Addition (tied to window/door scope) | $45,000 – $130,000 |
A free estimate from us includes a look at the existing units, measurements, and a written line-item quote so you know what you are paying for before anything starts. Call (877) 752-3868 to schedule one.
Serving San Carlos, CA — Our Local Coverage Area
We’re based in the San Carlos 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 San Carlos
Yes. If the frame is structurally sound and the sash is intact, we replace the failed IGU with an OEM PGT unit or an equivalent aftermarket glass package. Fogging alone rarely means the whole window is done, but we will inspect the frame and the rough opening before recommending glass-only work. Call (877) 752-3868 and we can tell you what you are looking at.
Yes. We coordinate with San Carlos’s planning and building department on the window and door scope that runs through your permit set, including any neighbor privacy or light review conditions that come up on two-story rebuilds. We do not expect you to handle that paperwork yourself. If your project is already permitted, we work within the approved plans.
They are worth it if you want impact protection without adding shutters or film, and if the remodel is already opening walls, the incremental cost is lower than on a standalone window swap. WinGuard vinyl and aluminum units carry the design pressure ratings, and on fog-belt exposures they also give you better air and water performance than builder-grade windows. The honest caveat: impact windows are a significant investment, and on a ranch home that already gets full sun and coastal wind, you should weigh them against a good non-impact window with proper flashing. We can price both paths so you can decide with real numbers.
No. Fogging means the IGU seal failed and the desiccant is saturated, which is a glass-unit problem, not necessarily a frame problem. We replace the IGU and only recommend a full window replacement if the frame is rotted, the sill is holding water, or the rough opening is so far out of square that the sash cannot be sealed. If the frame is sound, you save the cost of a full unit.
Yes, and this is routine for us. The constraint is staging, not the installation itself: on lots where a second-story addition leaves no driveway space, we deliver materials in phases and stage them on the street with the city’s requirements in mind. We plan the window package around that reality rather than letting it surprise you mid-project. Call (877) 752-3868 for a free estimate and we can walk your specific lot.
Service Areas Near San Carlos
We work throughout the mid-Peninsula from our San Carlos base, including San Carlos service area coverage for all PGT window and door work. Neighboring areas we regularly serve include Belmont, San Mateo, Foster City, Redwood Shores, and Highlands-Baywood Park. For specific coverage details, see PGT service in Highlands-Baywood Park and PGT service in Redwood City.
Book Your PGT Service in San Carlos Today
Call (877) 752-3868 to schedule a free estimate for PGT window or door work in San Carlos. We will inspect your units, give you a straight answer on repair versus replacement, and put the quote in writing. Build it right the first time, and you won’t be rebuilding it in ten years.
Written by Glen Mossier, Owner at Ashford Contractors, serving San Carlos and the mid-Peninsula.