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PGT Construction in Cupertino, CA | Iron Beam Contractors
We provide independent PGT window and door installation, repair, and replacement across Cupertino, including full new-construction and addition work. The thing that separates our PGT work in Cupertino from everyone else’s is simple: we build around the city’s tree-protection ordinance and the West Valley clay soils that twist frames out of square. We are not authorized, sponsored, or endorsed by PGT. We simply know the product line cold and build to California Title 24 and local permit standards ourselves. Call (833) 756-5936 for a free estimate on PGT windows, sliders, or a full addition.
Why Cupertino Residents Choose Us for PGT Service
Nolan Driscoll has been framing and reinforcing structures for more than two decades, and Iron Beam Contractors is an independent contractor that has installed and serviced PGT windows and sliding doors across hundreds of Cupertino and 95014 rebuilds and additions. We know which PGT series hold up under West Valley sun and which ones the city inspector will question. The difference on a Cupertino job is that we are a full-scope general contractor: one accountable team for the window opening, the flashing, the structural header above it, and the finish trim. A PGT slider that leaks is rarely just a slider problem. It is a rough-opening problem, a drainage problem, or a foundation problem, and we solve all of it under one contract. We source OEM PGT replacement sashes, glass units, rollers, and weatherstrip whenever the product line is still supported, and use quality aftermarket glazing and hardware only where the OEM part is obsolete or the upgrade is the honest better choice.
If you are pricing a Cupertino rebuild or addition, you want a contractor who specifies the right PGT series for the elevation, not whoever the lumberyard sent over. Our PGT sales & service work covers the full scope: interior, exterior, openings, and structure.
Styles & brands we work with
Common PGT Construction Problems We Solve in Cupertino
- Fogged and failed glazing seals in original PGT aluminum units. Cupertino’s stock of 1950s through 1970s ranch and Eichler-style homes often still carries original PGT aluminum single-pane or early double-pane windows. After 20-plus years of West Valley thermal cycling, the seals break down and you get fogging, or what looks like sand between the panes. That is desiccant failure, not dirt. We replace the insulated glass unit or the sash, and the fix stays clear.
- Warped PGT vinyl frames on south- and west-facing walls. Prolonged UV and summer heat on Cupertino’s exposed elevations cause vinyl frames and sashes to warp and weatherstrip to shrink. The result is drafts at the meeting rail, water intrusion at the sill, and sliders that feel like they are grinding through gravel. A sound PGT frame with failed weatherstrip gets repaired. A warped, water-intruded frame on a Cupertino addition gets replaced, and we tell you which before we quote.
- Binding and corroded roller tracks on PGT aluminum sliding doors. On slab-on-grade additions, Cupertino’s winter rain blows into the threshold and the expansive clay soil settles under the slab, throwing the track out of level. The door gets harder to operate every season. We re-level the track, replace the rollers, and correct the drainage so it does not happen again.
- Rot and peeling finish at the flash-to-stucco transition. Older wood- or aluminum-clad PGT units in Cupertino ranch homes were often caulked at install rather than properly flashed. Years of winter rain wicking into the rough opening rots the sill and stains the interior. We pull the unit, rebuild the rough opening, and re-flash it properly before the new PGT goes in.
- Out-of-square PGT frames from clay-soil settlement. Cupertino’s expansive clay soils move with wet winters and dry summers. A PGT window or slider installed in a wall that has settled a quarter inch will bind, leak, and eventually break the glass. We correct the structural cause, not just the symptom.
PGT Service in Cupertino: What Local Conditions Mean for Your Equipment
Cupertino’s tree-protection ordinance can freeze the buildable footprint around a single heritage oak, and that changes where PGT glass actually goes. On rebuilds and second-story additions, we often have to rework PGT opening locations, sill heights, and egress paths around the protected root zone. An arborist report and city approval, not just a window order, determine where the glass lands. In the Monta Vista area, that means a rear-facing slider might have to shift three feet east because a 40-inch oak trunk sits where the original family room wall was drawn. This is not a hypothetical. We have pulled permits on Cupertino additions where the window schedule changed twice before the first header was cut, because the tree ordinance and the fire marshal’s egress requirements collide. The homeowner who plans for this up front saves a redesign fee. The homeowner who orders PGT windows before the arborist report lands pays for glass that never gets installed. Nolan Driscoll’s rule applies here: if the structure makes sense on paper, it will hold in the field. If it does not make sense on paper, we fix it before we touch a beam.
PGT Models & Products We Service in Cupertino
We work across the PGT line that shows up in Cupertino homes: PGT WinGuard Aluminum, PGT WinGuard Vinyl, PGT Premier Aluminum Series, and PGT ThermalWeld Series. WinGuard is the impact-rated line we specify most often on Cupertino rebuilds and second-story additions, where the inspector wants to see rated glass and the homeowner wants a window that will not fog in year twelve. We stock common PGT replacement rollers, weatherstrip, and hardware locally for faster turnaround on Cupertino repair calls, and we order OEM sashes and insulated glass units direct for replacements. When a PGT series is still supported, we use OEM parts. When the original part is obsolete and an upgrade is the honest better choice, we say so and show you the difference before you spend a dollar.
See the difference
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After
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AfterPGT Service Pricing in Cupertino
Cupertino pricing for PGT work tracks the scope, not just the glass. A single PGT slider replacement on an existing rough opening costs far less than a full addition where every window is new, the headers are being framed, and the flashing has to be integrated with stucco and sheathing. Here is what we typically see across Cupertino and 95014:
| Service | Typical Range in Cupertino |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Roof Replacement | $8,000 – $20,000 |
| Bathroom Remodel | $9,000 – $28,000 |
Your free estimate includes a walkthrough, a written line-item quote, and a straight answer on repair versus replace. Call (833) 756-5936 to schedule it.
Serving Cupertino, CA — Our Local Coverage Area
We’re based in the Cupertino 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 Cupertino
Yes. A heritage oak or other protected tree can dictate your buildable footprint, and that includes the location of PGT openings, sill heights, and egress paths. We start with the arborist report and the city’s conditions of approval before we order a single window. Call (833) 756-5936 for an addition estimate that accounts for the tree, not against it.
If the frame is still square and the issue is worn rollers, a corroded track, or failed weatherstrip, we repair it. If the slab has settled and the frame is racked out of square, replacement with a new PGT WinGuard vinyl or aluminum unit is the better call, and we will show you the measurements before we quote. Call (833) 756-5936 and we will tell you which one applies to your door.
PGT WinGuard impact-rated units meet the building code requirements Cupertino inspectors enforce for new openings, but the permit review is about more than the glass. We handle the structural headers, Title 24 energy compliance, and the flashing detail as part of the scope, so the window passes inspection as part of a complete assembly, not as a product in a box.
West-facing vinyl in Cupertino takes direct afternoon sun for six months of the year, and repeated thermal cycling eventually warps the frame and shrinks the weatherstrip. Some of these units are under-specified for the exposure. We can replace them with PGT WinGuard Vinyl units rated for the elevation, or upgrade to the Premier Aluminum Series where the wall takes the worst of the West Valley sun. Call (833) 756-5936 for a recommendation based on your actual elevation, not a catalog.
Yes. Cupertino permits detached ADUs in 95014, and PGT windows and doors are a common spec on those builds. We install them as part of the full ADU scope under our general contracting contract, so the openings, flashing, and glass all get inspected together. Call (833) 756-5936 to price a PGT-spec ADU.
Service Areas Near Cupertino
We serve Cupertino and the surrounding South Bay and West Valley communities, including Laguna Woods, Laguna Hills, Portola Hills, Los Serranos, Mission Viejo, and Aliso Viejo. For PGT work in nearby cities, see our PGT service in Milpitas and PGT service in Sunnyvale pages. Our full Cupertino service area covers all of 95014 and 95015.
Book Your PGT Service in Cupertino Today
Call (833) 756-5936 to schedule your free PGT estimate in Cupertino. We will walk the opening, check the frame, and give you a written quote with a straight answer on repair or replace.
Written by Nolan Driscoll, Owner at Iron Beam Contractors, serving Cupertino and the West Valley.