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PGT Construction in Upland, CA | Daly City Construction
We provide independent PGT window and door service across Upland, from the 91786 flats to the 91784 foothill customs. If you own PGT WinGuard impact units or aluminum sliding doors in this city, you already know the heat and Santa Ana winds punish frames and gaskets differently than they do a few miles south in Ontario. The thing that sets our crew apart: we understand how Upland’s expansive adobe clay moves under slab foundations, and how that movement racks window and door openings out of square. Call (866) 505-5254 for a straight assessment.

Daly City Construction is a full-scope general contractor, not a PGT dealer. We install, service, repair, and replace PGT products as part of larger renovation scopes or standalone window jobs, including San Antonio Heights PGT service. We’re not authorized or endorsed by PGT, and we won’t pretend otherwise. What we are is fluent in the product line. After years of pulling PGT units out of 1950s and 60s ranch homes in Upland and putting new ones back in, we know which models hold up here and which ones fail first.
Why Upland Residents Choose Us for PGT Service
Noel Cabrera, our owner, grew up in the Westlake district of Daly City, where he spent summers watching his uncle re-frame a garage and decided that was the work he wanted to do. He trained in construction technology at City College of San Francisco and put in years on residential and light commercial jobs across San Mateo and San Francisco counties before building Daly City Construction. The habit he brought from those fog-weathered coastal homes: look at how the structure moves before blaming the window.
In Upland, that instinct matters more than in most markets. A PGT window that won’t latch on a 1960s ranch in the 91786 flats is often a foundation problem wearing a window problem’s clothes. We level and shim the rough opening, set a proper sill pan, and then install the unit. That sequence is the difference between a repair that lasts and one that fails again next Santa Ana season.
Our position is simple: one contractor, every phase. If your PGT replacement is part of a larger remodel, an ADU build, or a room addition in Upland, we coordinate the window work with the framing, roofing, siding, and stucco so you’re not stitching bids together. We pull from a portfolio of 50+ manufacturer brands, but when a Upland home already has PGT units, we keep the PGT system intact wherever it makes sense, just as we do with our PGT service in Claremont.
Styles & brands we work with







Common PGT Construction Problems We Solve in Upland
These are the failure modes we see most often on PGT products in this city, and each one ties back to how Upland’s climate and housing stock actually behave:
- Warped vinyl frames on sun-exposed south and west elevations. Upland’s hot, dry summers bake vinyl frames for months at a stretch. On a 1960s ranch with original PGT vinyl single-hungs facing west, the frames can bow enough to throw the sash out of square and break the weather seal. You’ll feel the draft before you see the warp.
- Pitted aluminum frames and oxidized hardware from Santa Ana grit. Those wind events don’t just dry out soil. They drive abrasive dust and grit into every track, gasket, and seal line on PGT aluminum sliding doors. Hardware pits, rollers grind, and gaskets wear faster than in calmer inland markets.
- Fogged insulated glass on original PGT single-pane retrofits. In 91786 ranch homes, we regularly find PGT units that were retrofit into older rough openings without a sill pan. Water pools at the bottom of the frame, the seal fails, and the glass fogs. The window didn’t fail. The installation did.
- Binding sashes and leaking doors from racked openings. Upland’s slab-on-grade ranch foundations sit on expansive adobe clay. When Santa Ana winds desiccate that clay, slabs crack and shift. The opening moves. A perfectly sound PGT unit starts binding, dragging, or leaking because the wall around it moved.
- Roller and track failure on heavy PGT WinGuard sliders. Impact-rated PGT doors are heavy. On Upland homes where the track has collected years of wind-driven grit, the rollers wear out fast. We replace rollers and realign the track before the door starts chewing up its own frame.
PGT Service in Upland: What Local Conditions Mean for Your Equipment
Upland’s 91786 flats are dominated by original slab-on-grade ranch foundations poured on expansive adobe clay, and those slabs crack and move as the soil desiccates during extended Santa Ana wind events. That means window and door openings here rack seasonally in a way that foothill custom homes on the 91784 side generally don’t experience. If you live in the flat ranch tracts below the San Gabriel foothills, your PGT units are dealing with two forces at once: the heat and grit of the wind on the exterior, and the slow structural movement of the opening itself. We see the pattern every fall: a spike in foundation-related window and door service calls as the clay shrinks and slabs settle. It’s a Upland problem, not a PGT problem, but it lands on PGT units first because they’re the stiffest elements in the wall.
Here’s a field vignette that captures it. On a 1960s ranch tract in the 91786 flats, a homeowner called us about a PGT sliding glass door that wouldn’t latch and a bedroom window that leaked in winter rain. We found the slab had cracked and the wall opening had racked, so we rebuilt and shimmed the rough opening, set a new sill pan, and installed a fresh PGT unit rather than trying to force the old frame square. The door now closes clean and the leak is gone. That’s the difference between a contractor who sees the window and one who sees the house.
PGT Models & Products We Service in Upland
We work on PGT WinGuard Aluminum Impact-Resistant windows and doors, PGT WinGuard Vinyl impact windows, PGT aluminum series sliding glass doors, and PGT vinyl single-hung and casement replacement windows. Our parts approach is straightforward: we use OEM PGT replacement sashes, glazing, and hardware when the frame is sound and the model is still supported. When OEM isn’t practical, we use quality aftermarket seals, rollers, and sill pans and tell you exactly what we’re installing and why. See our full PGT sales & service page for a detailed breakdown of our repair philosophy.
In Upland, we keep common PGT rollers, gaskets, and sill pans on hand for fast turnaround on the most frequent service calls. If you need a custom sash or a full replacement unit, we’ll order it and coordinate the install around your schedule, not ours.
See the difference
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AfterPGT Service Pricing in Upland
Pricing depends on the scope, the model, and whether we’re repairing a sound unit or replacing a warped frame or racked opening. Here’s what PGT-related work typically runs in Upland:
| Service | Typical Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Home Addition (including PGT windows/doors) | $45,000 – $130,000 |
| Roof Replacement (often paired with window work) | $8,000 – $20,000 |
What drives the cost in Upland: whether the opening needs structural correction before the new unit goes in, how many units you’re replacing, whether the home is in the 91786 flats or the 91784 foothills, and the specific PGT model line. A free estimate covers measurement, frame condition assessment, and a line-item quote so you know what you’re paying for before anything is signed. Call (866) 505-5254 to schedule one.
Serving Upland, CA — Our Local Coverage Area
We’re based in the Upland 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 Upland
Yes. Much of our PGT work in Upland happens as part of larger additions and remodels. When we’re opening up a compartmentalized 1950s or 60s ranch floor plan, we spec and install PGT units to match or upgrade the existing windows and doors, then coordinate the framing, waterproofing, and finish work under one scope, similar to our PGT repair in Montclair. Call (866) 505-5254 and we’ll walk through your project.
No. Daly City Construction is an independent general contractor. We’re not authorized, sponsored, or endorsed by PGT. We install and service PGT products because we know them well and they’re common in Upland housing stock, not because the manufacturer pays us to say so.
When the frame is sound and the model is still supported, yes. We use OEM PGT replacement sashes, glazing, and hardware. Where OEM isn’t practical or has been discontinued, we use quality aftermarket seals, rollers, and sill pans and disclose exactly what’s going in.
Most single-window repairs or roller replacements are done in an afternoon. A full window replacement across a three-bedroom ranch typically takes one to two days, including trim-out. If we’re correcting a racked opening, expect an additional day for structural work before the new unit goes in.
Replacing PGT windows in Upland generally falls between $4,500 and $15,000 depending on how many units, the model line, and whether the openings need structural correction first, comparable to our Rancho Cucamonga PGT service. Impact-rated PGT WinGuard installation runs $8,000 to $25,000. For a firm quote on your home, call (866) 505-5254. Estimates are free and line-itemed.
Service Areas Near Upland
We serve Upland and the surrounding San Gabriel Valley foothill communities. If you’re outside Upland proper, we also cover Daly City, Broadmoor, Colma, Visitacion Valley, and Noe Valley. For PGT work in nearby Orange County, see our PGT service in Fullerton and PGT service in Stanton pages. Our full coverage area is on the Upland service area page.
Book Your PGT Service in Upland Today
If your PGT windows or doors are binding, leaking, fogging, or just showing their age, call (866) 505-5254. We’ll schedule a free estimate, assess the frames and openings, and give you a straight answer on repair versus replacement. Tell us what the house needs, not what you think it needs, and we’ll figure out the right fix together.
Written by Noel Cabrera, Owner at Daly City Construction, serving Upland and the San Gabriel Valley foothills.