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Ameristar Construction in Ontario, CA | Pinecrest Contractors
We buy, install, repair and replace Ameristar windows, patio doors and entry doors across Ontario, CA, and provide Ameristar service in Montclair as well. As an independent Ameristar service provider, our edge is simple: we know which Ameristar series are sitting in Ontario’s 1950s – 1970s stucco tracts, and we know exactly what this city’s clay soil, west-sun exposure and Santa Ana winds do to them. Call (855) 702-1622 for a free estimate.

Why Ontario Residents Choose Us for Ameristar Service
Most contractors treat Ameristar as just another window brand, even those offering Ameristar in Upland. We don’t have that luxury, not here. The vast postwar housing stock east of Euclid Avenue – single-story stucco on slab or raised foundations – was built in an era when wood window bucks were standard. That single fact changes how every Ameristar replacement goes in. Gil Rourke, our owner, learned the fundamentals at Palomar College’s construction technology program and spent years working every phase of residential and light commercial builds before he started Pinecrest. He still keeps a worn framing square from his framing days in the truck cab. When we quote an Ameristar job in 91762, we’re quoting the re-flashing, the re-stucco, and the framing correction – not just the glass going in. The right material in the right place – that’s where the job starts.
We stock Ameristar OEM sashes, glass units and hardware for faster turnaround. When OEM no longer makes sense on an older unit, we switch to quality aftermarket insulated glass and hardware. You get an honest read, not a parts pitch. And we handle window replacement alongside roofing, siding, or hardscape under one coordinated contract – our Ameristar sales & service work doesn’t leave you juggling separate trades.
Styles & brands we work with







Common Ameristar Construction Problems We Solve in Ontario
- Factory seal failure on Ameristar low-E dual-pane windows. After several seasons of 100°F+ Ontario summers and daily west sun, the sealed glass units fog or collect condensation between panes. We re-glaze when the frame is sound, which costs far less than full replacement.
- Warped vinyl sashes on Ameristar single-hungs. Unshaded south and west elevations bake these frames. The sash warps, the welds crack, and the window binds or stops latching. This is the most common call we get from central Ontario tracts.
- Sill and head flashing rot on Ameristar patio doors. Many original 1960s – 70s stucco homes still have their original wood bucks. Santa Ana wind-driven rain gets behind the flashing, and the buck rots. We correct the rough opening before setting the new Ameristar door.
- Faded, delaminating fiberglass entry doors. Ameristar half-lite models take direct afternoon sun on west-facing entries, plus slab-moisture wicking from clay-soil yards. The skin yellows and the bottom rail softens.
- Failed latches and hardware on older Ameristar doors. The frame may be fine, but the hardware gave out years ago. We source OEM-compatible replacements so the door actually closes and locks again.
Ameristar Service in Ontario: What Local Conditions Mean for Your Equipment
Central Ontario’s 91761 and 91762 postwar tracts were built with wood window bucks set into single-story stucco walls. That detail matters more than homeowners expect. Any Ameristar window or patio door replacement here almost always requires re-flashing and re-stuccoing the rough opening – a step that isn’t built into quotes in cities with newer, sheath-and-wrap construction. On a 1960s single-story stucco home east of Euclid Avenue in 91762, our crew replaced a set of Ameristar vinyl single-hung windows whose sashes had warped and stopped latching after years of unshaded west sun. The original wood bucks were water-damaged, so we re-flashed and re-stuccoed each rough opening, reset the Ameristar units with new low-E insulated glass, and the homeowner finally got windows that close tight through the summer. Skip that step and the new window leaks within two seasons. We won’t cut that corner, not in this soil, not with this sun.
Ameristar Models & Products We Service in Ontario
We work on the full Ameristar line you’ll find in Ontario homes: Ameristar by Masonite steel and fiberglass entry doors, including half-lite and nine-lite models; Ameristar vinyl single-hung and double-hung replacement windows with low-E insulated glass; and Ameristar sliding glass patio doors with vinyl frames and dual-pane glazing. For newer units we source Ameristar OEM replacement sashes, glass units and door slabs. For older units, when OEM is no longer cost-effective, we move to quality aftermarket insulated glass and hardware. A failed glass unit in a solid Ameristar frame is a re-glaze. A warped sash with cracked welds on a 20-year-old unit in full Ontario sun is a full-frame replacement. We’ll tell you which one you’re looking at before we quote a dollar.
See the difference
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AfterAmeristar Service Pricing in Ontario
What you’ll pay depends on the scope, the condition of the rough opening, and whether we’re re-glazing or replacing. Here are the ranges we work within for Ontario homes:
| Service | Price Range |
|---|---|
| Ameristar vinyl replacement windows | $4,500 – $15,000 |
| Impact window installation | $8,000 – $25,000 |
| Roof replacement | $8,000 – $20,000 |
| Roof repair | $400 – $1,800 |
The cost drivers in Ontario are the rough-opening corrections we described – wood buck replacement, re-flashing, re-stucco – plus whether you’re combining window work with roofing or exterior repairs. Your free estimate includes a line-by-line breakdown so you see exactly where the money goes. Call (855) 702-1622 to schedule yours.

Serving Ontario, CA — Our Local Coverage Area
We’re based in the Ontario area and know this community well, and we also handle Ameristar repair in Chino. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Ameristar Construction in Ontario
Ameristar’s warranty on sealed glass units is typically handled through the original installer or distributor, not through an independent service provider like us. In practice, most Ontario homeowners we see with fogged dual-pane units are past the warranty window, which means they pay for the fix. The good news: we can re-glaze a sound Ameristar frame with quality insulated glass for a fraction of a full replacement. Call (855) 702-1622 and we’ll tell you exactly which path yours takes.
Because the rough opening needs work before the window goes in. Ontario homes built from the 1950s through the 1970s east of Euclid Avenue used wood window bucks set into stucco. Those bucks are often water-damaged or rotted, and the flashing is original. A new-build quote assumes the opening is clean and ready. Ours includes re-flashing and re-stuccoing the opening, which is the only way the Ameristar unit will actually last. Call (855) 702-1622 for a line-item quote that shows you the difference.
For a west-facing wall that takes full afternoon sun and Santa Ana wind, impact-rated windows are usually the stronger choice. They’re built for higher wind pressure and impact resistance, and they hold up better to Ontario’s combination of heat, UV, and seasonal wind events. That said, if you need a door opening more than window performance, an Ameristar sliding glass patio door with dual-pane glazing works fine when the rough opening is properly flashed. We’ll walk you through the trade-offs for your specific elevation. Call (855) 702-1622.
That’s a replace, in almost every case we see in Ontario. The soft bottom rail means moisture has wicked up from the slab through clay soil, and the delaminating skin won’t recover. Patching fiberglass skin is temporary at best. We’ll check the slab moisture and the threshold, then set a new Ameristar half-lite or nine-lite door that won’t repeat the same failure. Call (855) 702-1622 for a free assessment.
Yes. We’re a full-scope general contractor, so we coordinate window and roof work under one contract. It saves you scheduling conflicts and warranty gaps. When we replace your roof and your Ameristar windows in the same season, we also catch the flashing problems at the wall-roof intersection before they leak into the new window openings, just as we do for Ameristar in Rancho Cucamonga. Call (855) 702-1622 to schedule a combined estimate.
Service Areas Near Ontario
We serve Ontario and the surrounding Inland Empire communities: Murrieta, Murrieta Hot Springs, Wildomar, Temecula, Sedco Hills and Lakeland Village. For comparison, you can also read about Ameristar service in Placentia and Ameristar service in Fountain Valley. Same independent expertise, different city conditions.
Book Your Ameristar Service in Ontario Today
Call (855) 702-1622 to schedule your free Ameristar estimate in Ontario. We’ll send a crew lead who knows this city’s housing stock and what it does to windows and doors. Our Ontario service area covers 91762, 91764, 91798 and 91758.
Written by Gil Rourke, Owner at Pinecrest Contractors, serving Ontario since day one.