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ES Windows Construction in Montclair, CA | Iron Beam Contractors
We’re Iron Beam Contractors, and we provide independent ES Windows construction and service across Montclair, CA. We are not manufacturer-affiliated. What makes our ES Windows work different here is that we know Montclair’s housing stock: postwar tract homes on small lots, with stucco walls and rough openings that were never designed for modern replacement units. The opening is usually the problem, not the window itself. Call (833) 756-5936 for a free estimate.
Why Montclair Residents Choose Us for ES Windows Service
Most window crews can swap a sash. Fewer can tell you why an ES Windows slider is binding in the track on a house built in 1962. Our crew reads ES Windows profiles and knows how their vinyl and aluminum lines behave when the stucco, framing, and flashings around them date to the 1950s through 1970s. We’ve spent years installing and servicing ES Windows products specifically on Montclair’s garage conversions, room additions, and Home Remodeling – Montclair projects.
Nolan Driscoll, our owner, grew up in the Friendly Hills area of Orange and spent enough afternoons at Santiago Oaks as a kid to know this region’s soil, grade, and clay layers better than most engineers who show up with a laptop and a clipboard. He built Iron Beam Contractors on one straightforward principle: tell the homeowner exactly what’s in the wall before you open it, not after. That’s how we approach every ES Windows sales & service job in Montclair. We tell you what’s behind the stucco before we cut.
Styles & brands we work with







Common ES Windows Construction Problems We Solve in Montclair
These are the failure modes we see repeatedly on Montclair homes. Most of them trace back to the same root cause: windows installed into openings framed and flashed for 1950s and 1960s construction methods.
- Slider tracks packed with Inland Empire dust and grit. Montclair sits in the hot, smoggy Inland Empire east of the Pomona Valley. Fine dust works its way into vinyl slider tracks, the sash drags, rollers flat-spot, and the lock no longer meets the keeper. We clean, replace rollers, and re-align the sash so the lock actually engages.
- Seal and glazing failure on south- and west-facing units. Montclair’s intense summer sun bakes south and west elevations for hours every afternoon. We see fogged dual panes, chalky vinyl frames, and sun-brittled weatherstripping. The honest call is sometimes re-glazing. Sometimes it’s replacement.
- Leaks at the rough opening. Original 1950s-70s stucco and paper flashing were never integrated with the replacement window fin. The first winter rain shows up as staining on interior drywall. We pull the unit, re-flash the rough opening correctly, and reset the window.
- Aluminum slider frames that pit and corrode. The Pomona Valley’s coastal-influenced smog and dust accelerates corrosion on older ES Windows aluminum series frames. Screens pop out of hardened channel felt. We replace felt, rebuild channels, and address pitting before it becomes a structural issue.
- Warped vinyl sashes from sustained heat exposure. When vinyl goes chalky and the sash has warped, re-sealing won’t hold. We’ll tell you that plainly. A replacement unit is the honest call, and we’ll quote it straight.
ES Windows Service in Montclair: What Local Conditions Mean for Your Equipment
Montclair is fully built out with no vacant land, so nearly every ES Windows job here is a remodel, garage-to-ADU conversion, or teardown-rebuild on a lot barely wide enough to keep required setbacks. Builders work tightly against neighbor property lines and manage trash, deliveries, and materials on narrow residential streets. That changes how windows get set and flashed. In a new subdivision you have open stud bays and manufacturers’ installation manuals written for clean openings. In Montclair you’re setting new ES Windows vinyl sliders into rough openings that have been stuccoed over, re-stuccoed, and patched for sixty years. The flashing detail at the head and sill of the opening is usually where a ten-year-old window leaks, not at the window itself. If the structure makes sense on paper, it’ll hold in the field. If it doesn’t make sense on paper, we fix it before we touch a beam, and we check that flashing detail before we touch the stucco.
ES Windows Models & Products We Service in Montclair
We work on ES Windows vinyl single-hung and slider replacement windows, ES Windows aluminum series horizontal sliders and fixed picture windows, ES Windows vinyl patio sliding doors, and ES Windows custom-shape and architectural fixed units. When a profile is still supported, we use OEM ES Windows rollers, lock sets, glazing seals, and screens. When OEM is discontinued, we match with quality aftermarket tilt-latch and weatherseal hardware sized to the exact extrusion. For Montclair turnaround, we stock common ES Windows roller assemblies, lock sets, and glazing seals locally so we’re not waiting on a distributor for a part we knew we’d need.
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AfterES Windows Service Pricing in Montclair
What you’ll pay depends on whether we’re repairing the existing unit, re-glazing and re-flashing, or doing a full replacement with new construction or retrofit installation. Here are the standard ranges for the work we do across Montclair:
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
A free estimate from us includes a written line-item quote, not a round number. We’ll tell you what’s behind the wall before we open it. Call (833) 756-5936 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
Yes. In most cases we remove the old sash and frame from the existing rough opening, repair and re-flash the opening, and install a new ES Windows slider as a retrofit without tearing out the surrounding stucco. The original stucco around the window usually stays intact. Call (833) 756-5936 for a free estimate and we’ll tell you what your specific opening needs.
It depends on the condition of the frame and sash. If the vinyl is still solid and the track is straight, we can replace the fogged dual-pane unit with new OEM glazing seals. If the frames are chalky or the sashes have warped from Montclair’s summer sun, replacement is the better long-term call. We’ll give you both prices. Call (833) 756-5936 for an exact quote.
Yes. We run ES Windows installation as part of our General Contractor – Montclair scope on garage conversions, room additions, and ADU builds across Montclair. One contractor, every phase. The window rough-in, flashing, and final trim all happen under the same contract as the framing and drywall, which means the rough opening is built correctly from the start.
Often yes, because sliders don’t project outward, so they work well on tight setbacks where the window is close to a neighbor’s property line. But side lot windows also need proper privacy glazing and, on west-facing walls, heat-resistant glass. We’ll spec the right ES Windows unit for the specific elevation and setback. Call (833) 756-5936.
We start with OEM ES Windows parts when the profile is still supported. If the exact model is discontinued, we match tilt latches, weatherseal, rollers, and lock hardware from quality aftermarket suppliers sized to the original extrusion. We’ll tell you if parts availability makes repair the wrong investment before any work begins.
Service Areas Near Montclair
We serve Montclair and the surrounding Inland Empire and eastern Orange County areas, including Los Serranos, Ontario, La Verne, and Mission Viejo. For residents west of Montclair, see our ES Windows service in La Verne page. For customers east of Montclair, our ES Windows service in Ontario coverage applies. We also handle ES Windows projects across the broader Montclair service area.
Book Your ES Windows Service in Montclair Today
We know Montclair’s old stucco walls, tight lots, and the way a window opening from 1962 behaves. If your ES Windows units are fogged, dragging, or leaking, we’ll tell you the honest repair-vs-replace call and quote you a real number. Call (833) 756-5936 to schedule your free estimate.
Written by Nolan Driscoll, Owner at Iron Beam Contractors, serving Montclair and the Inland Empire.