Windows & doors
Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
ES Windows Construction in Montclair, CA | Timberline Contractors
We provide independent ES Windows repair, retrofit, and replacement service across Montclair, CA. Our crews work on ES Windows vinyl single-hungs, sliders, fixed picture units, and aluminum sliding doors in the city’s postwar tract homes. The difference: we know these units don’t fail in isolation – they fail at the seam where a 1960s wood-framed opening meets a sun-baked vinyl frame. Call (866) 253-5808 for a free estimate on any ES Windows job in Montclair.
Why Montclair Residents Choose Us for ES Windows Service
We’ve re-flashed, re-squared, and re-fit ES Windows products across the Pomona Valley long enough to know how their vinyl and aluminum frames behave in inland heat and Santa Ana wind cycles. As an independent contractor, we fix and re-fit ES Windows units on their own merits – no authorization, partnership, or warranty endorsement from ES Windows is implied. Nelson Fung runs our window crews the way he learned the trade at Los Angeles Trade-Technical College: check the substrate before you trust the finish. That’s why our General Contractor – Montclair work starts with the rough opening, not the glass.
We pull units, inspect the original wood framing behind them, and tell you whether the window, the wall, or both need work. Most Montclair homeowners appreciate the straight answer.
Styles & brands we work with
Common ES Windows Construction Problems We Solve in Montclair
- Warped vinyl frames on sliders and single-hungs. Hot Pomona Valley summers bake south and west-facing units until the frames move. Sashes bind, locks stop lining up, and the unit loses its seal. We shim and re-square the opening or replace the unit when the frame is past saving.
- Clouded glazing on sun-exposed elevations. Seal failure is common on Montclair homes where a window faces the afternoon sun for a decade straight. We re-glaze where the sash is sound and replace the glass pack when it isn’t.
- Flat-spotted aluminum door rollers in Santa Ana season. Grit blows in from the foothills and chews up sliding door tracks. Doors jump track or refuse to close. We replace rollers, re-set the door, and re-weatherstrip the frame.
- Perimeter caulk failing at retrofit openings. Original 1950s-70s stucco walls don’t give you a clean modern flange to work with. When caulk degrades, seasonal rain tracks behind the frame. We re-flash and re-caulk the full perimeter.
- Racked frames from clay-soil movement. Montclair’s expansive clay settles and shifts. Frames go out of plumb, and even good ES Windows units start leaking at the jamb. We re-square the unit and repair the opening.
ES Windows Service in Montclair: What Local Conditions Mean for Your Equipment
Montclair is essentially built out. Almost every ES Windows job here is a retrofit into an existing 1950s-70s wall opening rather than a new-construction rough-in. That changes the work. We’re not swapping glass into a clean opening – we’re matching frames to out-of-square wood framing and patching stucco. On a small postwar tract house off the 10 freeway side of town, we re-fit a set of sun-baked ES Windows repair in La Verne-style vinyl sliders and a rear aluminum sliding door that had gone out of square and stopped sealing. We pulled the units, shimmed the openings in the original wood framing, replaced flat-spotted rollers and weatherstripping, re-flashed the stucco perimeter, and reset the doors so they rolled true. No re-glaze guessing, just honest hardware and flashing work. That’s the difference between a window guy who shows up with a caulk gun and a contractor who understands what’s behind the frame.
ES Windows Models & Products We Service in Montclair
We service the full ES Windows lineup commonly found in Montclair: vinyl single-hung and double-hung replacement windows, vinyl horizontal sliders typical of bathroom and rear-yard openings, fixed/picture window units with tempered glazing, and aluminum sliding glass doors. For parts, we use OEM ES Windows hardware and glazing where it’s still available. When a model has been discontinued, we match profile, color, and roller or balance specs with quality aftermarket parts. We keep common roller sets, balances, and weatherstripping profiles stocked locally so Montclair turnaround stays fast. Our ES Windows sales & service work covers everything from single-sash repairs to full-home replacements.
See the difference
Before
After
Before
After
Before
AfterES Windows Service Pricing in Montclair
Here’s what to expect on the three services most Montclair homeowners ask about:
| Service | Montclair Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Home Addition | $45,000 – $130,000 |
Cost drivers in Montclair: how far the original opening is out of square, whether stucco repair is needed, how many units are involved, and whether the job is a straight swap or tied into an addition or ADU. Our free estimate includes an opening-by-opening inspection and a written line-item quote. Call (866) 253-5808 to schedule yours.
Serving Montclair, CA — Our Local Coverage Area
We’re based in the Montclair 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 Montclair
It depends on the frame. If the vinyl is slightly out of square, we can often shim the sash and re-align the track so the unit seals again. If the frame has warped beyond adjustment or the corners have opened, replacement is the honest call and usually costs less long-term than chasing repairs. Call (866) 253-5808 and we’ll inspect your units.
Because the leak is usually at the seam between the window flange and the original stucco, not in the glazing. Montclair’s retrofit openings were cut into older wood framing and stucco decades ago, similar to what we see with ES Windows service in Ontario, and perimeter caulk degrades under inland heat and Santa Ana wind. We re-flash and re-seal the full perimeter to stop water tracking behind the frame.
Yes. Narrow-lot additions on Montclair’s postwar parcels often mean matching new ES Windows units to existing frames in the main house, so the old and new elevations read as one. We coordinate window rough-ins with the addition’s framing and stucco work under one contract. Give us a call at (866) 253-5808 to talk through your lot’s setbacks and what fits.
It can be. Expansive clay under older Montclair homes, like those near ES Windows in Claremont, settles unevenly over time, racking door frames so the door binds or drifts open. The door itself may be fine while the rough opening is the problem. We re-square the frame, replace worn rollers, and re-seal the stucco perimeter as needed.
Yes. We match profile and color against the existing ES Windows units on your home and stock or source the closest available finish. When OEM stock is exhausted, we match with quality aftermarket profiles and glazing. Call (866) 253-5808 for a free estimate and we’ll walk your exterior with you.
Service Areas Near Montclair
We run ES Windows service calls throughout the Pomona Valley and nearby communities, including ES Windows service in Upland, ES Windows service in Fullerton, Chino, Ontario, and Pomona. Our full coverage zone is listed on our Montclair service area page.
Book Your ES Windows Service in Montclair Today
Do it right the first time or explain yourself twice. We stand by our window work in Montclair. Call (866) 253-5808 to schedule your free estimate – we’ll inspect every opening and give you a written quote before any work starts.
Written by Nelson Fung, Owner & General Contractor at Timberline Contractors, serving Montclair since our first retrofit on the 10 freeway side of town.