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PGT Construction in Redwood City, CA | San Mateo Construction
We’re an independent PGT service provider working across Redwood City, and the short answer is this: we install, repair, and replace PGT windows and doors, we know the product line as well as anyone who doesn’t work for PGT corporate, and we understand how Redwood City’s seismic codes and microclimates affect every unit we touch. What makes us different here is that we’ve done PGT work in 94063’s pre-1960 raised foundations and 94065’s bayfill slabs, often in the same week. If you need PGT service in Redwood City, call us at (855) 901-7266 and we’ll schedule a look. Noel Carrington runs our shop, and he’ll likely be the one who shows up.
Why Redwood City Residents Choose Us for PGT Service
Most window companies in Redwood City will sell you whatever brand they carry. We work differently. We’ve installed and serviced PGT windows and doors across this city for years, from seismic retrofits in 94063 to waterfront infill in 94065, and our crews know PGT’s product lines and the local building envelope challenges that affect their performance. That matters when a WinGuard unit is fogging in a humid crawl-space home or an aluminum frame is corroding in Redwood Shores salt air. Noel grew up in San Mateo County and studied construction technology at Skyline College, and he’s spent nearly three decades working residential and light commercial jobs here. He knows which PGT failure modes show up in Redwood City specifically, and he knows which repairs make sense versus which replacements will actually save money long-term. We’re a general contractor, not a brand rep, so we’ll tell you straight when a glass unit replacement beats a full window swap. Call (855) 901-7266 and we’ll give you an honest read.
Styles & brands we work with







Common PGT Construction Problems We Solve in Redwood City
Here are the PGT issues we see most often in Redwood City, tied to the specific conditions that cause them:
- Fogged dual-pane WinGuard units from humid crawl spaces. Redwood City’s mild climate means pier-and-beam crawl spaces stay damp year-round. That moisture rises, condenses on glass, and accelerates seal failure in dual-pane PGT WinGuard windows. We see this constantly in the 94061 and 94063 neighborhoods, where 1920s – 1950s homes sit on raised foundations with minimal ventilation. Glass unit replacement fixes it when frames are sound.
- Aluminum frame corrosion in Redwood Shores (94065). Bayfill soils and a high water table mean salt air and persistent damp. PGT aluminum series windows and door frames in 94065 corrode faster than anywhere else in Redwood City. We’ve replaced plenty of pitted, seized hardware on PGT sliding doors there. Full replacement is usually the smarter call once corrosion spreads.
- Water intrusion at PGT sliding door sill pans in older homes. The pre-1960 raised-foundation stock in 94061 and 94063 was built before modern flashing standards. Original PGT door installations often lack proper sill pans. Winter rains find the gap. We re-flash and re-seat these doors with current waterproofing practices.
- Sticking PGT vinyl windows on hillside lots. Homes in 94062 and 94064 sit on sloped terrain. Foundation movement, even minor, throws window frames out of square. PGT vinyl series windows with tight tolerances bind and stick. We re-square openings, adjust hardware, and re-shim as needed before considering replacement.
- Failed seals on impact-rated WinGuard glass. This is the PGT-specific version of the fogging problem. WinGuard’s laminated glass is heavy and its seal system takes stress from thermal cycling. Redwood City’s dry summers and wet winters speed up that cycle. When the seal goes, the unit loses its insulating value but not necessarily its impact rating. We replace the glass unit, not the whole window, whenever the frame is in good shape.
PGT Service in Redwood City: What Local Conditions Mean for Your Equipment
Here’s the thing that makes Redwood City different from nearby Woodside PGT service areas or anywhere else in the county: the split between the city’s flat, alluvial downtown core and the engineered fill of Redwood Shores. In 94063, a 1940s raised-foundation house likely still has its original unbolted sill plates. That means before any PGT window or door goes in, the wall framing and connections around the opening often need seismic retrofit work. The city’s mandatory retrofit ordinance for pre-1960 homes makes this unavoidable. We’ve seen simple window jobs turn into structural upgrades because the opening itself wasn’t up to code. Over in 94065, the imported bayfill and high water table mean many homes need engineered pier foundations or under-slab dewatering just to add a room. PGT installations there have to account for slab movement that doesn’t happen on native soil. The same permit desk sees both worlds, and so do we.
We hit this exact issue on a 1940s raised-foundation home in the 94063 ZIP code. We were replacing a set of fogged PGT WinGuard windows in a home not far from PGT in West Menlo Park, and found unbolted sill plates during the install. We coordinated with a structural engineer to add cripple-wall bracing and bolting, then reinstalled the new PGT units with proper flashing. It turned a window job into a code-compliant seismic upgrade, and the homeowner got a safer house along with functioning windows.
PGT Models & Products We Service in Redwood City
We service the full PGT residential lineup: PGT WinGuard® Impact-Resistant Windows, PGT Aluminum Series Windows, PGT Vinyl Series Windows, and PGT Sliding Glass Doors. On parts, we’re practical. We source OEM PGT parts for critical components like glass units and locking mechanisms to maintain warranty compliance. But when OEM is discontinued or the price doesn’t make sense, we use quality aftermarket seals and hardware. For PGT windows with failed seals, we recommend glass unit replacement over full window replacement when frames are sound. For corroded aluminum frames, full replacement is often more cost-effective than chasing pitted metal. We keep common PGT hardware and seal stock local, which means faster turnaround for Redwood City homeowners who need a door latch or window balance fixed without waiting on a factory shipment. We’re the same team behind PGT sales & service across the Peninsula.
See the difference
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AfterPGT Service Pricing in Redwood City
PGT work in Redwood City falls into three broad cost bands, and what you’ll actually pay depends on scope, existing conditions, and whether seismic work triggers:
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Home Addition | $45,000 – $130,000 |
Cost drivers include whether your home is pre-1960 and needs retrofit work around openings, whether you’re in 94065 where slab conditions may require engineered solutions, and whether you’re doing a full-frame replacement versus a glass-unit-only repair. A free estimate from us includes a look at the existing openings, a check for local code triggers, and a written line-item quote. No vague “we’ll figure it out later.” Call (855) 901-7266 and we’ll come out.
Serving Redwood City, CA — Our Local Coverage Area
We’re based in the Redwood City area and know this community well, including PGT service in San Carlos nearby. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – PGT Construction in Redwood City
Yes, often. Redwood Shores (94065) sits on imported bayfill with a high water table, and many homes there experience slab movement and differential settlement that don’t occur on native soil. PGT WinGuard windows are heavy, and their frames need to stay square to operate and seal properly. Installation in 94065 frequently requires re-shimming, and in some cases we recommend an engineered sill or pier check before mounting new units. Call (855) 901-7266 and we’ll assess your specific slab condition.
You can often replace just the glass. When a PGT dual-pane unit has a failed seal and the frame is still square and structurally sound, we replace the glass unit itself. That keeps your existing frame, costs less, and preserves the original window’s fit. Full replacement only makes sense when the frame is corroded, warped, or no longer meets current code. We’ll tell you which one you actually need. Call (855) 901-7266 for an exact quote. Estimates are free.
For pre-1960 homes in 94061 and 94063, Redwood City requires seismic retrofit work before or alongside many window and door replacements. If your home has unbolted sill plates or inadequate cripple-wall bracing, the city won’t sign off on a simple window swap until those structural issues are addressed. We handle that coordination directly, bringing in a structural engineer when needed and pulling permits as part of the job. Call (855) 901-7266 and we’ll check your home’s retrofit status.
For sloped lots in 94062 and 94064, we generally recommend PGT Vinyl Series windows with properly re-squared openings, and PGT WinGuard where you want impact protection. Hillside homes move more than flatland ones, and vinyl’s flexibility handles minor foundation shift better than rigid aluminum. Sliding doors on hillside installs need careful sill flashing because slope drainage sends water toward the foundation. We size the right PGT product to the specific slope and drainage pattern of your lot. Call (855) 901-7266 for a recommendation based on your exact site.
We provide a workmanship warranty on all PGT installations we perform in Redwood City. PGT’s own manufacturer warranty covers the products themselves, and we ensure the installation meets their requirements so that warranty stays intact. When we use OEM parts for repairs, those carry their own coverage. On aftermarket hardware, we clearly explain what’s covered and what isn’t before we install anything. Call (855) 901-7266 and we’ll walk you through it.
Service Areas Near Redwood City
Beyond Redwood City itself, we serve San Mateo, Burlingame, Foster City, Hillsborough, and Belmont. If you’re in Highlands-Baywood Park or the surrounding Peninsula, we’ll come to you. Our Redwood City service area coverage extends across all four local ZIPs: 94061, 94062, 94064, and 94065. We also handle PGT service in Emerald Lake Hills and PGT service in South San Francisco for homeowners just outside the city.
Book Your PGT Service in Redwood City Today
Tell me what you actually need, and we’ll figure out the right way to build it. That’s how Noel runs every job, including PGT work in Redwood City. Call (855) 901-7266 and we’ll schedule a free estimate. We’ll look at your windows, your openings, and your code situation, then give you a straight answer.
Written by Noel Carrington, Owner at San Mateo Construction, serving Redwood City and the surrounding Peninsula.