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PGT Construction in San Mateo, CA | Gold Star Contractors
We provide independent PGT window and door installation, repair, and replacement across San Mateo. We’re not a manufacturer arm or a factory-authorized dealer – we’re our General Contractor in San Mateo who has worked on PGT products in this city long enough to know how its marine air and shifting soils actually affect their aluminum and vinyl frames. If you need PGT work done in San Mateo, call (833) 382-8544 and we’ll send someone who knows the difference between a hillside lot and bay-fill flat.

Why San Mateo Residents Choose Us for PGT Service
Most window companies in San Mateo can order a replacement unit. Fewer can tell you why your PGT sliders are binding on one side of the house but not the other, or whether a fogged pane is worth fixing versus replacing the whole sash. That’s the level of detail our crew works at. Noel Carranza, our owner, came up doing concrete work and finish carpentry before building Gold Star Contractors, and he’s kept that hands-on approach in how we run PGT jobs. We diagnose the frame, the opening, and the flashing – not just the glass.
San Mateo homeowners also like that we carry OEM PGT parts whenever the profile still exists, and we source legitimate aftermarket equivalents for discontinued lines. We don’t stock mystery hardware. And because we’re a general contractor rather than a single-trade window shop, when a PGT replacement uncovers rotted sheathing behind the stucco or a foundation issue that caused the racking, we can handle the framing repair under the same team instead of sending you back to the phone. We also offer Belmont PGT service for nearby homeowners.
Styles & brands we work with







Common PGT Construction Problems We Solve in San Mateo
- Fogged or sealed-unit failure on bay-facing elevations. Marine fog and winter rain driven against the bay side of San Mateo homes pits the finish on older PGT aluminum frames. Once the anodizing breaks down, seals around the glass start to fail and water creeps in. We see this constantly in 94404 and the flats near the bayfront.
- Sticking or hard-to-operate sliders and hung windows. In San Mateo, the soil under your house can move seasonally – heavy clay toward the hills, expansive fill near the bay. That movement racks PGT frames out of square, and suddenly a window that was fine last summer won’t budge. We fix the opening, not just the sash.
- Brittle vinyl and shrunken weatherstripping on 1980s-90s PGT units. Older PGT vinyl windows yellow and turn brittle after decades of UV. The glazing beads crack, weatherstripping shrinks, and you get drafts. We can often restore these units with fresh glazing and hardware rather than replacing the whole frame.
- Water behind stucco walls from poor original flashing. A lot of early PGT installations in San Mateo’s stucco bungalows were flashed wrong. Water wicks behind the frame, the sill pan fails, and the sheathing rots. We pull the window, rebuild the rough opening, and flash it for this climate – not for a desert.
- Obsolete PGT profiles with no OEM parts left. Some PGT lines from the 80s and 90s are discontinued. We’ll give you an honest call: if the frame is sound, we use aftermarket parts that meet the original spec. If the frame is done, we price a full replacement with current PGT units.
PGT Service in San Mateo: What Local Conditions Mean for Your Equipment
San Mateo sits on a soil gradient that most window installers never think about. Toward the hills and the Alameda de las Pulgas corridor, you’re dealing with heavy clay that expands when wet and contracts in dry summers. Down on the flats and near the bayfront, the ground is old bay fill – and bay fill moves. A PGT window or door that operates smoothly in a hillside home in 94402 can bind and leak within a year on the bay side if the rough opening isn’t detailed for that specific soil condition. We recently replaced a set of fogged and sticking PGT aluminum sliders in a 1950s ranch home off Alameda de las Pulgas where the original units had been racked out of square by clay-soil movement and the stucco flashing had failed. Our crew rebuilt the rough openings with proper shim packs and pan flashing sized for that lot’s expansive soil, then installed new PGT WinGuard impact units. Now the homeowners have smooth operation and no more winter drafts. That’s the difference between a window company and a contractor who knows San Mateo.
PGT Models & Products We Service in San Mateo
We work on the full PGT lineup you’re likely to find in San Mateo homes: PGT Aluminum Series single-hung and horizontal slider windows, PGT WinGuard Impact Series vinyl windows and sliding glass doors, PGT Winguard Series impact-rated doors, and PGT Premiere Series vinyl windows. For newer units, we order OEM PGT replacement parts to keep fit and finish original. For obsolete profiles where PGT no longer makes components, we source aftermarket equivalents that match or exceed the original spec – never cheap universal hardware. If you’re looking at a bigger project that pairs new PGT windows with an addition or structural repair, our PGT sales & service team handles the full scope under one roof.
See the difference
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AfterPGT Service Pricing in San Mateo
Here’s what PGT work typically runs in San Mateo, depending on scope and frame condition:
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Home Addition | $45,000 – $130,000 |
What drives the cost: how many units, whether your rough openings need rebuilding, whether the existing flashing is recoverable, and whether you’re dealing with a stucco exterior that needs careful cutting and patching. If you’re in San Mateo and want a firm number, call (833) 382-8544. We’ll come out, measure, and write you a line-item estimate you can actually read.
Serving San Mateo, CA — Our Local Coverage Area
We’re based in the San Mateo area and know this community well, including 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
Yes, we can often replace just the glass or the sash if the frame is still square and the seals are the only thing that failed. For older PGT units with brittle frames or racked openings, full replacement is usually the smarter spend. Call (833) 382-8544 and we’ll tell you which one you’re actually looking at.
Permitting rules vary by scope. Any structural change to the rough opening triggers San Mateo’s planning review. Since we’re a licensed general contractor, we pull the permits and manage the inspections so you’re never dealing with the city’s submittal process on your own.
In San Mateo, the usual cause is foundation movement from the coastal-to-bay soil gradient – clay toward the hills, expansive bay fill on the flats. The opening racks, the PGT frame racks with it, and the sashes bind. We inspect the opening to confirm the cause before recommending any repair. After the fix, call (833) 382-8544 for a quote – estimates are free.
If the frame is sound and the racks are minor, a hardware and glazing refresh often costs a fraction of replacement and buys you years. If the frame is corroded from San Mateo’s marine air or badly racked by soil movement, new PGT WinGuard impact units are the better long-term play. We’ll give you the honest numbers either way. Call (833) 382-8544 to have us look at your specific windows.
San Mateo’s soil shifts seasonally – heavy clay shrinks and swells toward the hills, including the area we serve with Highlands-Baywood Park PGT service, and old bay fill settles unevenly near the bayfront. If your rough opening isn’t detailed for the soil under your lot specifically, a PGT window that installs square in one neighborhood will bind and leak in another. That’s why our crews pack shims and size flashings for the soil condition under your specific home, not a generic spec sheet.
Service Areas Near San Mateo
If you’re outside San Mateo proper, we also cover the surrounding Peninsula and East Bay communities. Head south toward Burlingame and you’ll find us servicing PGT service in Burlingame with the same soil-aware approach. Over the hill in PGT service in Hillsborough, we handle the larger hillside estates where clay movement is even more pronounced. We also serve Foster City, Belmont, and Redwood City. See our full San Mateo service area for details.
Book Your PGT Service in San Mateo Today
If your PGT windows or doors are fogging, sticking, leaking, or just getting old, don’t wait until the next winter storm finds the gaps for you. Call (833) 382-8544 and we’ll schedule a free estimate at your San Mateo home. One call, done right – that’s the only way we know how to run a job.
Written by Noel Carranza, Owner at Gold Star Contractors, serving San Mateo with independent PGT window and door service.