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ES Windows Construction in Upland, CA | Gold Star Contractors
We provide independent ES Windows installation, repair, and replacement across Upland, from the steep alluvial-fan lots in 91784 to the slab-foundation tract homes in 91786. What makes our ES Windows work different here is simple: we’ve serviced these window systems in both of Upland’s genuinely different construction environments, and we know how they age on each side of the city. Call (833) 382-8544 for a free estimate.

Gold Star Contractors carries full ES Windows sales & service depth without being manufacturer-affiliated. That independence matters when it’s time to spec a repair honestly. We’re the crew Upland homeowners call when an ES glider starts dragging in August or an insulated unit fogs up for good.
Why Upland Residents Choose Us for ES Windows Service
We’ve installed and repaired ES Windows single-hungs, double-hungs, horizontal sliders, picture units, and patio door systems in Upland long enough to know which failure modes show up where. The 91784 hillside homes bake on west- and south-facing elevations. The 91786 flatland homes cycle hard between hot days and cold desert nights. Those are two different wear patterns, and we stock parts for both.
Noel Carranza, our owner and general contractor, studied construction technology at Fullerton College and spent his twenties doing concrete, framing, and finish carpentry across Orange County before building this operation. He still walks job sites himself. When an Upland homeowner asks whether a warped ES frame is worth saving, the answer comes from someone who’s pulled enough of them to know.
We use OEM-compatible sashes, balances, and hardware where the profile is still supported. When OEM is discontinued, we spec quality aftermarket IGUs and weatherseal matched to the original vinyl extrusion. One call, done right – that’s the only way we know how to run a job.
Styles & brands we work with







Common ES Windows Construction Problems We Solve in Upland
- Sticking or binding sashes from sustained heat and UV. Upland summers push past 100°F, and ES vinyl frames on west- and south-facing walls can warp enough that sashes drag or won’t seat. We see it most on the 91784 hillside, where the sun hits hard and there’s no shade from the fan.
- Fogged insulated glass units from thermal cycling. The swing between hot Inland Empire days and cold desert nights stresses older ES seals. Mid-century tract homes in the 91786 flatlands are the usual suspects, where the units have been in place since the original build or an early retrofit.
- Chalky, cracked vinyl and brittle weatherstripping from Santa Ana winds. Dry wind and grit blowing off the San Gabriel fan abrade exposed frames. We replace hardened weatherseal and recondition salvageable vinyl before leaks become framing rot.
- Water intrusion at window perimeters on hillside lots. The 91784 north side gets intense winter storm drainage off the San Gabriels. Poorly flashed ES rough openings on those elevations let moisture behind the frame, and by the time the homeowner notices, the rough-opening framing often needs work.
- Slab-wall retrofit challenges in 91786 tract homes. Older Upland slab homes weren’t framed for modern window nailing flanges. We open walls carefully, reframe the rough opening, and flash the perimeter so the new ES unit actually sheds water instead of trapping it.
ES Windows Service in Upland: What Local Conditions Mean for Your Equipment
Upland sits where the alluvial fan off the San Gabriel Mountains meets some of the oldest housing stock in San Bernardino County. That split shapes how ES Windows age here in a way you won’t hear from a showroom. On the north hillside in 91784, window work is fundamentally about drainage. Those homes sit on fan soils with a high water table, and winter storms push water hard against walls that face the grade. An ES window up there isn’t just a window. It’s a flashing detail, a waterproofing decision, and an ember-resistant assembly all in one. We’ve pulled units off hillside homes where the glass was fine but the rough opening was quietly rotting because someone years ago sealed the window to the wall without thinking about where the water would actually go.
Down in the 91786 flatlands, it’s a different job. Those mid-century slab homes were built fast, and the window openings were framed for whatever was cheap at the time. Retrofit means carefully opening a wall that never anticipated modern flanged windows, then squaring and flashing the opening to match the existing slab construction. Same brand of window. Two completely different installations. Most crews treat them the same. We don’t.
ES Windows Models & Products We Service in Upland
We work on the full ES Windows residential range: vinyl single-hung and double-hung series, horizontal sliding glider units, fixed and picture windows, and patio or sliding glass door systems. For Upland homes with older installations, we keep common OEM sashes, balances, and locking hardware on hand so repairs don’t stall waiting on freight from a distributor. When a profile is discontinued, we match aftermarket IGUs and weatherseal to the original extrusion profile. The goal is a window that works and weathers like the rest of the house, not a patch job that fails the next time the Santa Anas blow through. See our ES Windows sales & service page for the full product range.
See the difference
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AfterES Windows Service Pricing in Upland
Upland ES Windows jobs vary by scope, but here are the ranges we quote most often:
| Service | Typical Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Home Addition | $45,000 – $130,000 |
What drives cost on an Upland window job: how many openings, whether the rough framing needs work, whether the home is on the 91784 hillside (drainage and flashing add scope), and whether you’re going standard vinyl or impact-rated glass for the WUI zone. Every free estimate includes a written line-item quote. Call (833) 382-8544 to schedule yours.
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 – ES Windows Construction in Upland
Upland heat regularly exceeds 100°F, and on west- and south-facing exposures in the 91784 hillside, sustained UV can warp vinyl frames enough that sashes bind. The remedy depends on the warp. Some frames can be reconditioned with new weatherseal and balanced sashes; badly warped ones need replacement. Call (833) 382-8544 and we’ll tell you which one you have before quoting anything.
Usually not. Fogged glass means the insulated glass unit seal has failed. If the vinyl frame is still sound, we replace just the IGU with an aftermarket unit matched to the original extrusion profile. That’s a fraction of the cost of a full window replacement. If the frame is also warped, replacement is the honest call. We’ll show you the difference on site.
Yes, and it’s the single biggest variable on north-side Upland jobs. Winter storm drainage off the San Gabriels pushes moisture against walls that face the grade. We flash and waterproof the rough opening before setting any ES unit, and we check the surrounding wall assembly for existing water damage. Skipping that step is how hillside windows rot from the inside out.
They can be, when installed with the right detailing. In Upland’s hillside wildland-urban interface zones, the assembly matters as much as the glass. We use ember-resistant flashing details, metal drip edges, and sealed rough openings so the window perimeter doesn’t become an ignition point. If you want impact-rated glass as well, we’ll spec it. Not every WUI job needs it, but some elevations deserve it. Call (833) 382-8544 and we’ll walk your specific lot.
Yes. For 91786 slab tract homes, we match the visible style of the original ES units as closely as the current product line allows, then frame and flash the opening so the new unit performs better than the original ever did. Mid-century openings usually weren’t built for modern flanges, so we reframe carefully and seal the perimeter properly. The goal is a clean match, not a visible patch. Estimates are free – call (833) 382-8544.
Service Areas Near Upland
While this page focuses on Upland, our crews also handle Upland service area work in surrounding communities. We regularly serve Corona, Norco, Eastvale, and Jurupa Valley. If you’re in the Rancho Santa Margarita area, see our dedicated ES Windows service in Rancho Santa Margarita page. For Pomona homeowners, we have a ES Windows service in Pomona page with local details for that market.
Book Your ES Windows Service in Upland Today
If your ES Windows are sticking, fogging, leaking, or just showing their age, call (833) 382-8544. We’ll schedule a free estimate, inspect the openings, and give you a written quote with the repair-or-replace call made plainly. Upland hillside or flatland, we know which approach fits your home.
Written by Noel Carranza, Owner & General Contractor at Gold Star Contractors, serving Upland and the surrounding Inland Empire.