







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Why West Covina Homeowners Choose ES Windows Construction
We provide independent Es Windows service in West Covina, including construction, repair, and replacement across flatland ranch homes to hillside lots in South Hills. We’re not an ES Windows dealer and we don’t claim manufacturer authorization, but our crews work on these aluminum frames daily, so we know exactly how they fail in this climate and how to fix them without a full tear-out when that’s the right call. Call (341) 217-4204 for a free estimate on any ES Windows project.
ES Windows built a reputation for clean aluminum extrusions and tight sightlines, and a lot of West Covina homes from the 1950s through the 1980s still have original Series 2000 and Series 3000 units in place. Those windows have been baking in afternoon sun and eating canyon dust for four decades. Luca Romano, owner of Sawyer Remodel West Covina, has been pulling permits and finishing jobs across this city for years, including South Hills projects where tight footprints and steep grades make window work more complicated than a flatland swap. We know these windows because we’ve opened them up, rebuilt the rollers, reset the flashing, and put them back in service so they seal tight through a Santa Ana blow.
As an independent ES Windows service provider, we answer to you, not to a manufacturer’s service territory. That means we stock common rollers, keepers, and weatherstrip locally, and we can usually get a fogged IGU swapped faster than a dealer network turnaround. We also hold our work to The Relay Visibility Guarantee: a written price before any tool is picked up, live arrival time tracking, and photo updates before and after. Every ES Windows job gets that, no exceptions.
Why Trust Sawyer Remodel West Covina for Your ES Windows Construction?

Luca Romano grew up in East Los Angeles and picked up his first framing hammer before he could drive. He trained in construction technology at Los Angeles Trade-Technical College, then spent two decades doing the work that holds a house together: framing, tile, full kitchen and bathroom overhauls, and window replacement on homes where the original install was never quite square. That matters with ES Windows because these frames don’t forgive sloppy installation. A milled corner key that’s off by a few thousandths leaves a gap the wind finds.
Our technicians work on ES Windows frames in real West Covina homes every week. We know the Series 2000’s brittle vinyl splines from the mid-70s production runs, the way Series 3000 horizontal sliders develop stiff rollers when freeway-corridor grit accumulates in the tracks, and how Series 5000 commercial mullions weep at bottom corners after storms when the original sill flashing was never sloped right. That’s not catalog knowledge, it’s field knowledge.
Every project is governed by The Relay Visibility Guarantee. That means a written price before work starts, live arrival time, and before-and-after photo updates. It also means background-checked, uniformed technicians on every job, a live person answering the phone 24/7, and our 365-Day Done Right Promise: if it’s not done right, we make it right. In writing. On every project.
Good work shows. Bad work shows up later. We build every ES Windows repair so the truck doesn’t have to come back, and if something does fail, we return under the warranty without an argument.
Styles & brands we work with







Common ES Windows Construction Problems We Fix in West Covina
- Failed IGUs in west-facing fixed panels. Twenty years of afternoon sun on a West Covina west wall bakes the low-E coating and breaks the seal on the insulated glass unit. You see internal fogging that never wipes clean. We see a Series 2000 or Series 3000 panel that needs the IGU swapped, not the whole frame thrown out. We replace the glass with a high-performance aftermarket IGU matched to the original 1-inch or 7/8-inch overall thickness.
- Stiff or seized rollers on horizontal sliders. Dust and grit from the 10 freeway corridor work into Series 3000 slider tracks, mix with old grease, and grind the nylon rollers flat. The panel still moves, but it takes both hands and a grunt. We rebuild the track, replace rollers with OEM or better aftermarket parts, and reset the panel so it glides like it did in 1978.
- Warped mullions and leaky corner joints. Repeated Santa Ana wind gusts twist second-story ES Windows frames over time. The mullion bends, the corner joint opens up, and water finds the gap. We reset the mullion, mill new corner keys where the original stripped, and seal the joint with stainless fasteners and proper flashing, not a bead of caulk and a prayer.
- Weathered glazing beads and brittle vinyl splines. Older Series 2000 frames used vinyl splines that go brittle after thirty years of West Covina heat. When the spline cracks, the glazing bead loosens and air and water intrusion start. We replace the splines with modern elastomeric material and reseat the beads so the panel holds its seal.
- Fogged or sand-scored glass in hillside homes. South Hills properties face more than sun. Wind-driven sand off the dry slopes scours the exterior glass surface over decades, leaving permanent haze. We replace the affected IGUs and can upgrade to tempered glass where the original didn’t meet current code, especially on doors and low windows.
ES Windows Parts & Our Repair-vs-Replace Approach

We use OEM rollers, keepers, and weatherstrip sourced through independent mill-certified channels when available. For glass replacement, we often specify high-performance aftermarket IGUs that match ES Windows’ original 1-inch or 7/8-inch overall thickness. The aftermarket glass is what makes a fogged Series 3000 panel repairable for $600 to $1,800 instead of a $1,500-plus full frame replacement.
We recommend replacement only when the extrusion itself is twisted or the corner keys are stripped beyond repair. If the aluminum frame is straight and the corners are sound, we rebuild the panel in place. That’s the honest call, and it’s the call we’d make on our own homes. If your ES Windows can’t be saved without endless band-aids, we’ll tell you that too and quote a real window replacement, not a patch job.
Call (341) 217-4204 if you’re not sure whether your windows need repair or replacement. We’ll look at them and give you a straight answer with a written price.
Our ES Windows Service Process – Step by Step
- 1
Diagnosis. We inspect every panel, check the tracks, the corner keys, the glazing beads, and the flashing. We look at how the window sits in the opening and whether the original install was level. We document what we find with photos.
- 2
Written quote. Before any work starts, you get a line-item price. The number you approve is the number you pay. No change orders, no surprise add-ons.
- 3
Repair or install. We use OEM or matched aftermarket parts, re-flash openings with stainless fasteners where needed, and reset panels square in their frames. For full replacements, we pull the old frame, prep the rough opening, and install the new ES Windows or compatible unit level and plumb.
- 4
Test. We run the panel through its full travel, check the seal with a smoke or water test where applicable, and verify the locking hardware engages correctly. On a windy day in West Covina, you’ll know the difference.
- 5
Warranty. Every job is covered under our 365-Day Done Right Promise. If something isn’t right within a year, we come back and make it right. We also send before-and-after photos so you see exactly what changed.
See the difference
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AfterES Windows Products We Service & Install in West Covina
Our crews work on the full ES Windows aluminum lineup, including the Series 2000 Aluminum, Series 3000 Horizontal Slider, Series 5000 Commercial, and Series 8000 Impact. We stock common rollers, keepers, weatherstrip, and spline material locally, so most slider and fixed-panel repairs don’t wait on a freight shipment. For impact-rated work on hillside properties in South Hills, we source Series 8000-compatible panels and hardware and confirm they meet current wind load requirements before installation.
We Also Service These Brands
ES Windows isn’t the only frame we know. Our West Covina crews also work with KraftMaid cabinetry, Cambria and Silestone countertops, and Kohler fixtures, all backed by our 365-Day Done Right Promise. If you’re planning a larger remodel that touches windows, cabinets, or surfaces, we handle the whole scope as your General Contractor services with one written price and one point of contact.
FAQs – ES Windows Construction Service in West Covina

You can replace just the IGU in almost every case where the aluminum frame is straight and the corner keys are intact. Fogging means the glass seal failed, not that the frame is shot. We match the replacement IGU to the original 1-inch or 7/8-inch thickness, so the new glass seats in the existing extrusion. Whole frames are only necessary when the aluminum is twisted or corroded beyond repair. Call (341) 217-4204 for an exact quote on your panels; estimates are free.
Usually, it’s an installation problem. Weeping bottom corners on Series 5000 mullions typically mean the original sill flashing wasn’t sloped correctly, so water pools and drains into the joint instead of away from it. The fix is resetting the flashing with proper slope and sealing the corner joints with stainless fasteners and mullion sealant, not replacing the glass. We’ve seen this on commercial and hillside residential work across West Covina. Call (341) 217-4204 to schedule a diagnosis.
Yes, we handle Series 8000 impact-rated replacement in South Hills and other hillside neighborhoods across West Covina. Impact-rated installs require careful rough opening prep and anchoring that meets current wind load standards, and we confirm the panel and hardware match the building’s exposure before we quote. Prices for impact-rated panel installs run $800 to $2,500 per opening depending on size and anchoring. Call (341) 217-4204 for a free estimate specific to your home.
No, it’s not normal, and it usually means the rollers are worn or the tracks are packed with dust. In West Covina, freeway-corridor grit and dry-season dust work into the tracks, mix with old lubricant, and grind the nylon rollers until they seize. We rebuild the track, replace the rollers with OEM or better parts, and reset the panel. A rebuilt Series 3000 slider should glide with one hand. Call (341) 217-4204 and we’ll come look; the diagnosis is free.
Yes, we can match frosted, obscure, and patterned glass for ES Windows panels. For older Series 2000 units, the original glass is often no longer in production, but we source close-match aftermarket patterns and can apply edge treatments that match the existing sightlines. The key is matching the IGU thickness so the new panel seats in the original frame without modification. Call (341) 217-4204 with a photo of the damaged panel and we’ll tell you what’s available.
Pricing depends on the scope: roller and track rebuilds run $400 to $900 per panel, IGU replacements $600 to $1,800 per sash, full wall replacements $8,000 to $15,000 for three to five panels, and impact-rated installs $800 to $2,500 per opening. Here’s the full breakdown:
| Service | Price Range |
|---|---|
| ES Windows roller and track rebuild (per panel) | $400 – $900 |
| ES Windows IGU replacement (tempered, per sash) | $600 – $1,800 |
| Full ES Windows wall replacement (3 – 5 panels) | $8,000 – $15,000 |
| ES Windows impact-rated panel install (per opening) | $800 – $2,500 |
Call (341) 217-4204 for an exact quote on your ES Windows project; every estimate is free and comes in writing.
Book Your ES Windows Service in West Covina, CA
If your ES Windows panels are fogged, stuck, leaking, or need full replacement, call Sawyer Remodel West Covina at (341) 217-4204. We’ll schedule a diagnosis, put the price in writing, and handle the work under The Relay Visibility Guarantee. Free estimates, no obligation, real answers.
Written by Luca Romano, Owner at Sawyer Remodel West Covina, serving West Covina since 2005.


