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PGT Construction in San Mateo, CA | Workshop Contractors
We install, repair, and replace PGT windows and sliding doors across San Mateo, with a focus on the flat-roof Eichler and ranch homes that make this city’s housing stock unlike anywhere else on the Peninsula, including our Belmont PGT service area. We’re an independent contractor – not authorized, sponsored, or warranty-backed by PGT – and that independence means we quote the full scope honestly, including the reframing and flashing work these mid-century openings almost always need once we open the wall.
If your PGT slider sticks, your window fogs between the panes, or you’re planning a rear-yard addition on a narrow San Mateo lot, call us at (844) 384-3361. We’ll talk through what’s actually going on before anyone schedules a visit.
Why San Mateo Residents Choose Us for PGT Service
We’ve spent years installing and troubleshooting PGT windows and patio doors across the Peninsula’s mid-century and Eichler-style homes, so we know how these units actually behave in marine air and on flat-roof assemblies. PGT makes a solid product – the WinGuard impact-rated lines are genuinely well-built – but San Mateo’s wet winters and fog exposure create failure patterns that don’t show up in the manufacturer’s install manual.
Our owner, Noel Figueroa, learned framing the old way, on job sites where a carpenter checked his own corners with a square, not a phone camera. That background matters when we’re pulling trim on a 1958 Eichler and discover the header behind the window has been soaking up roof-deck runoff for a decade. We don’t just swap glass and walk away. We fix the opening so the next window actually lasts. Most San Mateo homeowners don’t realize how many systems interact on these houses – the roof deck, the flashing, the sill pan, the wall insulation – and that’s exactly what we manage.
Styles & brands we work with
Common PGT Construction Problems We Solve in San Mateo
- Marine-air corrosion on aluminum frames and hardware. Fog-exposed west-facing walls a few blocks from the Bay take the worst of it. We see pitting and white oxidation on PGT aluminum frames, and hardware that’s seized from salt-laden moisture. Homes in the 94404 ZIP in Foster City-adjacent flats get hit harder than the hills. We clean, treat, and replace corroded hardware with OEM or exact-match parts where they’re still available.
- Failed glazing gaskets and sealant on clerestory and transom units. Flat-roof Eichler tracts often have glass up high near the roof line. When the gasket dries out, wind-driven winter rain tracks straight into the wall cavity. By the time the homeowner sees a water stain on the drywall, the framing behind it has been wet for months. We repair or replace the unit and re-flash the opening properly.
- Roller and track wear on heavy WinGuard sliding glass doors. These big impact-rated panels are heavy. After years of grit from a San Mateo yard and no maintenance, the rollers flatten, the panel sags, and the track corrodes. We replace rollers with PGT OEM or exact-match parts – never cheap universal rollers that bind on a 200-pound panel – and clean or replace the track.
- Condensation and fogging between panes on older dual-glazed PGT units. Seals fail gradually in San Mateo’s mild-but-wet climate, especially on north and shaded elevations. But here’s the local wrinkle: on flat-roof Eichler homes, a fogged window often isn’t just a failed seal. The roof deck above it is holding water, and the moisture is being driven into the entire window opening from above.
- Dry-rot at the header and sill from ponding water. This is the San Mateo signature. The flat and low-slope roofs common on mid-century homes here were often built with minimal or no attic ventilation. After a wet winter, the recurring call is ponding water and dry-rot at the roof deck and header – not shingle damage. A PGT window replacement on these homes frequently becomes a framing repair once we open the wall and see what’s been happening behind the plaster.
PGT Service in San Mateo: What Local Conditions Mean for Your Equipment
Here’s what a generic PGT page won’t tell you, and it matters more than anything else on a San Mateo property. The Eichler-style tracts here were built with flat and low-slope roofs and minimal or no attic ventilation, so a failed window or door seal usually shows up as ponding water and dry-rot at the roof deck and header rather than obvious glass damage. That means a PGT swap often becomes a flashing-and-framing repair once we open the wall.
There’s no bull in this trade if you do it right, and the right way to handle a PGT failure on a flat-roof San Mateo home is to treat the window and the roof as one system. On a flat-roof Eichler-style ranch in the Highlands, a homeowner called about a fogged PGT WinGuard slider that had started sticking, which led them to our Highlands-Baywood Park PGT service. When we pulled the interior trim, the header and roof-deck edge behind it were soft from years of ponding water and a failed sealant joint. We cut out the rotted framing, re-flashed and re-sheathed the opening, repaired the low-slope roof edge, then set a new impact-rated PGT slider with fresh OEM hardware and a proper sill pan. The unit now slides clean and the roof deck behind it stays dry through the wet season. That’s the difference between swapping glass and actually fixing the problem in San Mateo.
PGT Models & Products We Service in San Mateo
We cover the main PGT lines you’ll find in San Mateo homes: WinGuard Aluminum (impact-rated sliding glass doors and windows), WinGuard Vinyl, Premium Vinyl and ReliaBilt-style single-hung and slider lines, and the PGT Aluminum Series custom window and door units. We use PGT OEM or exact-match rollers, weatherstripping, gaskets, and hardware where they’re available, and quality equivalents when OEM parts are discontinued – never cheap universal parts that bind on a heavy panel. We’ll repair a PGT unit when the frame and glazing are sound, but we tell owners plainly when a corroded aluminum frame or a failed sealed unit means replacement is the better money. On the PGT sales & service side, we also handle full window replacement, impact window installation, and home additions where PGT units are part of a broader scope.
See the difference
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AfterPGT Service Pricing in San Mateo
Every PGT repair or replacement in San Mateo starts with a site visit and a line-by-line scope, because a fogged window on a flat-roof Eichler can cost very different money than the same-looking window on a standard gable-roof ranch. What drives the cost is what we find behind the trim: rotted headers, corroded tracks, failed sill pans, roof-deck edge damage. The table below shows the ranges for the PGT-related construction work we handle most often here in San Mateo.
| Project | Typical Range in San Mateo |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Home Addition | $45,000 – $130,000 |
| Roof Repair | $400 – $1,800 |
Your free estimate includes a written line-item quote so you know exactly what you’re paying to replace and what you’re paying to fix behind the wall. Call (844) 384-3361 and we’ll schedule a time that works.
Serving San Mateo, CA — Our Local Coverage Area
We’re based in the San Mateo area and know this community well, including nearby Foster City PGT service. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – PGT Construction in San Mateo
It’s usually both. On flat-roof Eichler and ranch homes in San Mateo, the roof deck edge and the window header sit close together, so when the low-slope roof holds water, the moisture travels into the window opening and softens the framing below the slider. The sticking panel is a symptom; the rot behind the wall is the actual problem. We scope both the roof edge and the window opening in one visit so we’re not chasing the same leak twice. Call (844) 384-3361 for an exact assessment – we’ll tell you honestly whether you’re looking at a repair or a replacement.
Yes. PGT’s aluminum frames are anodized or painted for corrosion resistance, but San Mateo’s fog and salt-laden marine air wear that protection down faster than inland climates would. Homes within a few blocks of the Bay, especially west-facing elevations in the 94404 and 94401 ZIPs, show pitting and white oxidation on frames and hardware within 10 to 15 years. We can often clean and re-coat lightly affected frames, but deeply pitted aluminum usually warrants replacement.
Sometimes. If the frame is square, the hardware is sound, and the failure is limited to a failed dual seal, a glass-only replacement (often called an IGU swap) can work and costs less than a full unit replacement. But if the frame is corroded, the track is worn, or the wall assembly is wicking moisture, replacing just the glass papers over a bigger problem that will come back. We’ll tell you which path is the better money before any work starts. Call (844) 384-3361 and we’ll look at it together.
In most cases, a straight window or door replacement that doesn’t change the opening size doesn’t require a building permit in San Mateo. But when the opening is enlarged, the header is rebuilt, or the work is part of a larger remodel or ADU addition, the answer changes. We pull permits and handle the inspection cycle when they’re required, and we’ll tell you up front if your project triggers one.
No. You’re not required to match your main house’s PGT brand, but you may want to for the cleanest look, and PGT’s impact-rated lines make sense if your lot has exposure to wind-driven rain or if the ADU’s windows will be close to the property line. On narrow Peninsula lots, side-yard setbacks and floor-area limits drive most ADU window decisions, not brand loyalty. We’ll walk you through the options, including PGT and non-PGT alternatives, and price the whole ADU envelope as one scope. Call (844) 384-3361 for a free consultation.
Service Areas Near San Mateo
We serve San Mateo’s service area including all four ZIP codes – 94404, 94497, 94401, and 94402 – plus the surrounding Peninsula communities. Many of our PGT clients call from the mid-century tracts in the Highlands and Shoreview, and we regularly work with neighbors in PGT service in Burlingame and PGT service in Hillsborough, where the housing stock and marine-air exposure are similar.
Book Your PGT Service in San Mateo Today
If your PGT window or door is failing, or you’re planning a replacement as part of a bigger San Mateo remodel or addition, call (844) 384-3361 for a free estimate. Build it right the first time. The second time costs twice as much and nobody’s happy about it.
Written by Noel Figueroa, Owner at our General Contractor in San Mateo, serving San Mateo since 2008.