Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
PGT Construction in Sunnyvale, CA | Brookside Contractors
PGT window and door service in Sunnyvale means working on the exact housing stock that defines this city: postwar ranchers, Eichler-inspired post-and-beam homes, and newer infill builds that replaced them. We’re Brookside Contractors, an independent PGT service provider, and we handle everything from fogged WinGuard glass to full impact window replacement across the 94085, 94086, 94087, and 94088 ZIP codes. The difference here? Sunnyvale’s 1950s and 60s framing rarely matches up cleanly with modern PGT units, so we spend as much time fixing bad flashing and missing sill pans as we do the windows themselves. Call (833) 725-3508 for a free estimate on your PGT work.

Why Sunnyvale Residents Choose Us for PGT Service
Nate Burrell, our owner and general contractor, grew up watching South Santa Clara County get framed up, and he’s spent two decades on job sites from Gilroy to Sunnyvale. What that means for your PGT windows is simple: we’ve pulled enough of them out of stucco walls to know exactly what’s behind the trim before we even start. We handle the WinGuard impact line, the standard aluminum series, and FGCC estate doors with the same level of care, because we’ve seen what happens when a window gets installed without proper flashing in a 1962 rancher. It’s not the window’s fault, but it becomes your problem. We stock OEM-compatible components for critical seals and glass, and we’re honest about when a repair beats a replacement. For Sunnyvale homeowners doing their first major renovation, having one contractor who understands both the window and the wall it sits in changes the whole outcome. Our PGT sales & service work reflects that depth.
Styles & brands we work with







Common PGT Construction Problems We Solve in Sunnyvale
- Fogged WinGuard impact glass. Sunnyvale’s long dry summers bake the sealant at the perimeter of insulated glass units, then winter rain arrives and the thermal cycling finishes the job. Once the desiccant inside the unit is saturated, you get fog between the panes. We replace the glass unit, not the whole frame, when the frame is sound.
- Corroded aluminum frames on non-impact PGT windows. You wouldn’t think corrosion in Sunnyvale, but occasional marine layer influence from the South Bay plus years of irrigation overspray near foundations means pitting and finish failure on older aluminum frames. We assess whether the extrusion is still structurally viable or needs replacement.
- Water infiltration at miter joints. PGT aluminum windows with factory miter joints can leak at the corners after a decade of seismic micro-movement and winter storms. The water shows up as drywall staining below the window, and by then the sheathing may already be compromised. We fix the joint and the damage behind it.
- Sliding door roller and lock failures. PGT sliders take a beating from UV exposure on Sunnyvale’s south-facing walls. Thermal expansion cycles loosen hardware, and eventually the door binds or won’t lock properly. We use high-quality aftermarket rollers and weatherstripping for these wear items, which gets the door gliding again without waiting on OEM backorder.
- Stucco-to-frame flashing failures around PGT units. This is the one we see most in Sunnyvale’s older tracts. The PGT window may have been installed during a remodel years ago, but the surrounding stucco and framing were never updated. After a decade of winter rain, the wall rots behind the window. More on that below.
PGT Service in Sunnyvale: What Local Conditions Mean for Your Equipment
Here’s the thing about Sunnyvale that doesn’t show up in any generic PGT service guide. In the Eichler and mid-century rancher tracts, especially around Raynor Park and the neighborhoods off Hollenbeck, homeowners upgraded from original single-pane aluminum windows to PGT impact units during remodels over the last fifteen years. The windows went in, but the surrounding stucco and framing often stayed exactly as they were in 1961. No sill pan, minimal flashing, and an old wall cavity that was never designed for a modern flanged window. It looks fine for a few years, then the winter rains find the gap. We walked into a 1962 rancher in Raynor Park where PGT WinGuard windows had been installed during a kitchen remodel twelve years earlier. The original installer skipped the sill pans, and by the time we got there, the wall sheathing beneath two windows was rotted through. We removed the units, cut out the damaged framing, installed proper self-adhered flashing and new sill pans, then reinstalled the same PGT windows with fresh seals. That job didn’t require new windows, it required the wall to finally match the window. That’s the Sunnyvale PGT challenge in one project, and it’s why our repair scope often includes framing and flashing work alongside the window itself. Do it once, do it right, everything else is just a future repair bill.
PGT Models & Products We Service in Sunnyvale
We cover the full PGT line as an independent service provider, not a manufacturer affiliate. That includes WinGuard Aluminum Impact Series windows, WinGuard Vinyl Impact Series units, the non-impact PGT Aluminum Series, and FGCC (Fine-Grained Cellular Core) doors. For critical components like impact-rated glass and custom extrusions, we source OEM PGT parts so the fit is exact and any remaining warranty stays intact. For wear items like rollers, locks, and weatherstripping, we use high-quality aftermarket hardware when OEM lead times drag. We stock common Sunnyvale-specific parts locally, which means a fogged WinGuard unit in 94087 doesn’t sit boarded up for two weeks waiting on a truck from Florida. If the frame is sound, we repair. If multiple seals or the frame itself are compromised, we tell you straight: replacement is the cheaper long-term path.
See the difference
Before
After
Before
After
Before
AfterPGT Service Pricing in Sunnyvale
PGT work in Sunnyvale pricing depends on whether you’re repairing a single unit or replacing a whole wall of windows, and whether the surrounding framing needs attention. Here’s where our window-related pricing lands:
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
A fogged glass replacement on a single WinGuard unit runs lower than a full-frame replacement, and we’ll tell you which one your situation actually needs. Our free estimates include an assessment of the window, the wall around it, and whether the flashing is doing its job. Call (833) 725-3508 to schedule yours, no pressure and no guesswork.
Serving Sunnyvale, CA — Our Local Coverage Area
We’re based in the Sunnyvale 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 Sunnyvale
Yes, if the frame is structurally sound and the fogging is limited to one or two insulated glass units, we can replace just the glass and seal assembly. Sunnyvale’s thermal cycling makes this the most common PGT issue we see, and most fogged units in older homes here are repairable without pulling the entire window. Call (833) 725-3508 for an exact assessment, the estimate is free.
PGT’s impact-rated WinGuard units meet current California energy and structural requirements when properly installed. The challenge in Sunnyvale is the installation context: an Eichler or postwar rancher with original framing may need additional wall bracing or flashing retrofits to bring the assembly into code compliance. We handle that coordination so the window and the wall pass together.
PGT warranties vary by product line and installation date, and as an independent provider we can’t access manufacturer warranty records directly. But we can tell you what we’re seeing: seal failures and hardware wear are the common claims, and we’ll document the condition of your units so you can file with PGT if coverage applies. Bring us the window, we’ll help you sort the paperwork path.
Sliding glass door roller and lock failure from UV exposure and thermal expansion, especially on south and west-facing walls. The doors bind, the rollers wear flat, and the lock stops catching. We replace the rollers and weatherstripping with high-quality aftermarket parts, which gets the door moving like new without a full-door replacement.
Yes, and stripping back stucco carefully around the opening is part of the job. The bigger concern in Sunnyvale’s stucco ranchers isn’t the stucco itself, it’s what’s behind it: original paper backing, no sill pan, and framing that may have been wet for years. We cut back only what’s needed, fix the flashing plane, and re-stucco to match. Call (833) 725-3508 and we’ll walk you through what your specific wall needs.
Service Areas Near Sunnyvale
We serve all of Sunnyvale plus the surrounding South Bay and South Santa Clara County communities, including Sunnyvale service area coverage, Morgan Hill, San Martin, Gilroy, and Corralitos. For PGT work in the coastal mountains, see our PGT service in Bonny Doon page, and for the Loyola corridor, our PGT service in Loyola page covers that neighborhood specifically.
Book Your PGT Service in Sunnyvale Today
Fogged glass, leaking frames, or a sliding door that won’t slide, we’ll sort it out. Call (833) 725-3508 and we’ll schedule your free Sunnyvale estimate.
Written by Nate Burrell, Owner at Brookside Contractors, serving Sunnyvale and the South Bay, including PGT in Mountain View.