Kitchen remodeling
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FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
PGT Construction in Sunnyvale, CA | San Bernardino Contractors
We provide independent Sunnyvale Home Remodeling with PGT window and door installation, repair, and replacement across mid-century ranches, Eichler-era homes, and new ADUs. The one thing that makes our PGT work here different is that we plan around the city’s single-story overlay zones and ADU egress rules before we ever order a unit. That means fewer redesigns, fewer failed inspections, and a faster path from permit to passed final. Call (855) 473-5620 to talk through your project.
Why Sunnyvale Residents Choose Us for PGT Service
We’ve pulled PGT units out of 1950s ranch homes in 94086, re-flashed rough openings on Eichler-inspired glass walls in 94087, and sized WinGuard vinyl units for second-story additions that had to clear both privacy setbacks and egress minimums. That’s the kind of familiarity you only get from working the product line in the same housing stock, year after year. Ruben Castillo, who grew up watching his uncle reroof houses and frame garages in San Bernardino, has carried that hands-on education into every PGT job we run. We’re not authorized by PGT and we don’t pretend to be. We’re an independent construction firm that knows these products inside out because we’ve installed, repaired, and replaced them in Sunnyvale’s specific conditions. For the full picture of our PGT work, see our PGT sales & service page.
Styles & brands we work with







Common PGT Construction Problems We Solve in Sunnyvale
- Failed corner seals on original PGT vinyl units. Sunnyvale’s wet winters push water against aging perimeter flashing on 1950s and 60s ranch homes. When the corner seal fails, water gets behind the stucco and starts eating the framing. We catch it before the rot spreads.
- Corroded aluminum slider tracks. On Eichler-era homes with big glass expanses, condensation and coastal fog settle into PGT aluminum tracks and pit the metal. Rollers seize, panes drag, and eventually the door won’t close tight. We replace rollers and re-condition tracks when the frame is still sound.
- Undersized egress windows on ADUs and second-story additions. A lot of Sunnyvale additions reuse existing PGT openings that were never sized for today’s egress or tempered-glass rules. The result is cracked glazing or a failed inspection. We fix the sizing before it becomes a building department problem.
- Seismic racking on older PGT frames. Sunnyvale sits near the San Andreas and Hayward faults. When the ground moves, older PGT casement and awning frames shift out of square, locks bind, and gaskets separate. We re-square the frame or recommend full replacement when the racking is structural.
- Fogged glass from failed seals. Houses in 94086 and 94087 that still carry original dual-pane PGT units often show condensation between the panes after a decade or two. That’s a seal failure, not a cleaning issue. We replace the insulated glass unit without changing the frame when the frame is still straight.
PGT Service in Sunnyvale: What Local Conditions Mean for Your Equipment
Here’s the thing most generalists miss about Sunnyvale. The city’s single-story overlay zones and ADU ordinance often force window and door placements to satisfy both privacy setbacks and egress requirements at the same time. That dual constraint rarely shows up in neighboring San Jose or Mountain View, where overlay rules differ. What it means for PGT owners is this: on any addition or ADU, you can’t just pick a window size off a plan and order it. You have to confirm setback compliance and egress clearances before plans are submitted, because changing a PGT unit’s size or swing direction after permit review can trigger a redesign that costs weeks and thousands. We saw this play out on a 1962 ranch near Cumberland Elementary in 94087, where the original PGT aluminum sliders had corroded tracks and failed rollers that pooled water on the interior sill every winter. We replaced the rollers and gaskets with OEM parts, re-flashed the rough openings, and upgraded to PGT WinGuard vinyl units with low-E glass. The project passed Sunnyvale’s egress and privacy review without a redesign because we confirmed setback compliance early. That’s the difference between knowing the product and knowing the city.
PGT Models & Products We Service in Sunnyvale
We work on the full PGT residential lineup you’re likely to find in Sunnyvale homes: WinGuard Aluminum series, WinGuard Vinyl series, PremierVue, and ThermaStar by PGT. When a window or door needs parts, we start with OEM PGT replacements for rollers, locks, gaskets, and glazing to preserve fit and warranty integrity. If the part’s discontinued, we source aftermarket equivalents that meet or exceed the original spec. We stock common rollers, gaskets, and glazing locally so Sunnyvale jobs don’t stall waiting on a shipment. And we repair when the frame and glass are sound. Full replacement is our recommendation only when structural damage or code upgrades, like impact or egress requirements, make repair the more expensive long-term option.
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AfterPGT Service Pricing in Sunnyvale
What you pay depends on whether we’re repairing, replacing, or adding square footage that needs new PGT units. Here’s the range for the three most common PGT-related projects in Sunnyvale:
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Home Addition | $45,000 – $130,000 |
Glass-only replacement on a PGT sash runs lower than a full frame swap, while impact-rated WinGuard units push toward the top of the window range. A free estimate includes an on-site look at your existing openings, a check against Sunnyvale’s setback and egress rules, and a written line-item quote so you know exactly what you’re paying for. Call (855) 473-5620 to schedule yours.
Serving Sunnyvale, CA — Our Local Coverage Area
We’re our General Contractor in Sunnyvale 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 Sunnyvale
Yes, you can replace the glass or sash in a PGT window without changing the frame, as long as the frame itself is still square and structurally sound. We do this often on Sunnyvale ranches where the original frame is fine but the insulated glass unit has lost its seal. When the frame is racked or rotted, replacement becomes the honest recommendation instead of layering new parts onto a failing structure.
Yes, fogging between the panes of a dual-pane PGT window is a seal failure. On a 1950s ranch in 94086, that typically means the original desiccant has saturated and the argon or air between the panes has been replaced by moisture. We replace the insulated glass unit when the frame is still straight. If the fogging has been ongoing for years, we check the frame for hidden rot because Sunnyvale winters push a lot of moisture into old rough openings. Call (855) 473-5620 and we’ll tell you if a glass replacement will do it or if you need a full unit.
You need them only if your addition falls under California’s wildland-urban interface or local hazard requirements, which most Sunnyvale lots do not. But many homeowners we work with choose impact-rated PGT WinGuard units anyway because they add seismic resilience, cut noise from nearby traffic corridors, and hold up better to the occasional winter storm. We’ll walk you through what code actually requires versus what makes sense for your specific lot.
Sunnyvale’s ADU ordinance pairs setback requirements with privacy review, so a window or door that faces a neighbor’s yard may need to be offset, frosted, or repositioned even if it meets egress. That affects which PGT units you can install and where. We confirm these constraints before you order anything, because changing PGT sizes after permit review is when projects go sideways. Call (855) 473-5620 for a free estimate that includes a compliance check.
We can match your existing PGT window finish for an addition in most cases. PGT offers consistent finish options across its WinGuard and PremierVue lines, so when we add new units to a home with existing PGT windows we specify the same frame color and glazing tint. If your original units are from an older PGT generation and the exact finish is discontinued, we’ll find the closest available match and show you samples before you commit.
Service Areas Near Sunnyvale
Our work in Sunnyvale regularly takes us across the neighboring South Bay and Peninsula communities. We also serve Sunnyvale service area calls in Mountain View, Cupertino, Santa Clara, and Los Altos, and we handle PGT work up the corridor through PGT service in Mountain View. If you’re in a nearby neighborhood and need PGT repair or replacement, call us and we’ll tell you straight if we can get to your job this week. PGT service in Loyola is another area we cover regularly.
Book Your PGT Service in Sunnyvale Today
We’ll assess your existing PGT windows and doors, check them against Sunnyvale’s overlay and egress rules, and give you a written quote. Call (855) 473-5620 to schedule your free estimate today.
Written by Ruben Castillo, Owner at San Bernardino Contractors, serving Sunnyvale since day one on the job site.