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ES Windows Construction in Ontario, CA | Gold Star Contractors
We provide independent ES Windows service in Montclair and across Ontario, from full replacement on 1950s ranch homes near downtown to new installs on east-side tract builds. What makes our ES Windows work here different is simple: we’ve seen how Santa Ana winds blowing through the Cajon Pass and Inland Valley sun actually age these units, and we plan for it. Call (833) 382-8544 for a free estimate on any ES Windows repair, re-glaze, or full replacement in Ontario.

Why Ontario Residents Choose Us for ES Windows Service
ES Windows vinyl units are solid products, but they weren’t designed with Ontario’s specific conditions in mind. The west and south elevations on older homes eat through vinyl over time. We’ve pulled enough warped sashes out of ranch homes near Euclid Avenue to know exactly what Inland Empire heat does to single-hung frames. That experience matters when you’re deciding between a repair and a replacement.
We’re an independent contractor, not a manufacturer affiliate. That means when we walk through your Ontario home, we’re not trying to sell you a brand. We’re looking at the actual condition of your ES Windows units, the rough openings behind them, and the elevation they face. If a sash needs new balances and weatherstripping, we’ll say so. If the frame is warped and the opening has shifted, we’ll tell you replacement is the honest call. Noel Carranza, our owner, grew up watching older tract homes get renovated and understands what settling does to a window opening over 50 years. That’s the lens we bring to every ES Windows service call in Ontario.
Styles & brands we work with







Common ES Windows Construction Problems We Solve in Ontario
- Warped and chalked vinyl frames on sun-baked elevations. West and south facing ES Windows units in Ontario take direct inland heat for hours every afternoon. Vinyl that looked clean at installation starts to chalk, fade, and eventually warp at the sash corners. When glass starts moving independently from the frame, that’s a structural problem, not a cosmetic one.
- Slider tracks and patio door rollers binding from Santa Ana grit. Wind through the Cajon Pass doesn’t just rattle windows, it drives fine dust and grit into every track and seal. ES Windows slider tracks in Ontario collect that grit fast, which means rollers wear unevenly and doors start binding or leaving air gaps.
- Fogged dual-pane insulated glass from seal failure. Seals fail on older ES Windows installs all the time, but in Ontario it’s most common on the elevations that get the hardest sun. You can’t clean fog from between the panes. The fix is replacing the insulated glass unit, and we match it to your existing frame.
- Sticking sashes and drafts from out-of-square rough openings. Many 1950s through 1970s ranch homes in Ontario sit on slab foundations that have moved over the decades. The rough openings around original ES Windows units are no longer square, so sashes bind and air leaks through gaps the original install could seal.
- Failed weatherstripping that lets wind whistle through. Repeated Santa Ana events compress and wear out weatherstripping faster than coastal air ever would. Once the seal around the sash fails, the window lets in dust, heat, and that low whistle that Ontario homeowners already know too well.
ES Windows Service in Ontario: What Local Conditions Mean for Your Equipment
Ontario’s older ranch homes near downtown and along the Euclid and Holt corridors sit on slab foundations with original rough openings that have shifted over 50-plus years. That’s genuinely Ontario’s reality, not something you’d see in newer east-side tract builds where slabs are decades younger and openings are still square. What it means for ES Windows owners is this: replacements on older Ontario homes routinely need re-framing and re-flashing before the new unit goes in. You aren’t just buying glass. You’re correcting 50 years of foundation movement. On one 1960s single-story stucco ranch off Holt Boulevard, our crew pulled a set of fogged, warped ES Windows vinyl sliders and found the rough openings out of square from decades of settling. We re-shimmed and re-flashed the openings, set new ES Windows units, and sealed the stucco returns so the Santa Ana wind gusts stopped whistling through the slider tracks.
ES Windows Models & Products We Service in Ontario
We service the full ES Windows vinyl line: single-hung and double-hung replacement windows, vinyl sliding patio doors, fixed and picture window units, and horizontal sliders. Parts approach depends on the job and the unit’s age. We use OEM ES Windows sashes, glass, and hardware where they’re available and match the existing unit. When OEM supply is slow, we use quality aftermarket balances for slider rollers and weatherstripping. If the vinyl frame is warped or the rough opening on an old Ontario ranch home is failing, we tell you straight that replacement beats pouring money into repairs. Our ES Windows sales & service experience means we’ve stocked what Ontario homes actually need, not what a catalog thinks they need.
See the difference
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AfterES Windows Service Pricing in Ontario
Here’s what ES Windows work in Ontario typically costs, based on the scope and condition of your existing openings:
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Roof Repair | $400 – $1,800 |
What drives the cost: how many units, what size, whether the rough opening needs re-framing, and whether you’re doing a simple sash swap or full replacement with new flashing. We’ll walk you through a written quote that breaks down materials and labor. Call (833) 382-8544 to schedule a free estimate and get exact numbers for your Ontario home.

Serving Ontario, CA — Our Local Coverage Area
We’re based in the Ontario area and know this community well, including providing ES Windows in Upland. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – ES Windows Construction in Ontario
In most cases, yes. Sticking sliders are usually a track, roller, or weatherstripping problem, all of which can be repaired with the right parts. If the frame itself is warped or the opening has shifted enough that the unit no longer squares up, replacement tends to be the better investment. Call (833) 382-8544 and we’ll assess your Ontario home’s specific situation before recommending anything, whether you need ES Windows repair in Chino or nearby.
Fog or clouding between the panes means the insulated glass seal has failed and moisture has entered the space between the glass layers. Ontario’s afternoon sun accelerates this on older units. The fix is replacing the insulated glass unit, which we handle as a repair or as part of a larger replacement project.
Often, yes. Homes in the older core near downtown, Euclid, and Holt sit on slab foundations that have settled over decades, so rough openings are frequently out of square. That means we re-shim and re-flash openings before installing the new unit. Newer east-side tract homes rarely need this step, but on older Ontario stock it’s common.
ES Windows vinyl units can be a good general replacement window, but for impact-rated or high wind-rated performance, we typically recommend stepping to engineered impact systems from brands like PGT, CGI, or CWS, which are part of our portfolio. If you’re in a wind-exposed Ontario neighborhood, we’ll give you an honest comparison so you choose the right product for the conditions. Call (833) 382-8544 to go over your options.
That’s actually a smart way to do it. Coordinating window replacement with a kitchen remodel or bathroom upgrade means the opening, flashing, trim, and stucco work all happen once, and you avoid working around finished surfaces. We manage window and interior remodeling scope through the same project team, so there’s no handoff between trades. As a full-scope general contractor, we can handle Ontario service area remodels and window replacement under one plan. Call (833) 382-8544 to schedule a free estimate for the combined scope.
Service Areas Near Ontario
We provide ES Windows service throughout Ontario, including 91764, 91798, 91758, and 91761. We also serve nearby communities like Corona, Eastvale, Norco, and Jurupa Valley. If you’re in ES Windows service in Portola Hills or ES Windows service in Foothill Ranch, we cover those areas as well.
Book Your ES Windows Service in Ontario Today
If your ES Windows units are fogged, warped, binding, or leaking air during Santa Ana wind events, call (833) 382-8544 for a free estimate. We’ll inspect your Ontario home, tell you what’s actually wrong, and give you a straight answer on repair versus replacement, including for ES Windows in San Antonio Heights.
Written by Noel Carranza, Owner & General Contractor at Gold Star Contractors, serving Ontario and the Inland Empire.