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ES Windows Bathroom Remodeling: The West Covina Owner’s Guide
Bathroom remodeling around ES Windows products in West Covina typically costs $9,000 to $28,000 installed, depending on whether you’re addressing the window itself, surrounding wall framing, waterproofing, or a full shower-and-tile rebuild. We stock and install ES Windows-compatible parts and can usually swap a failed component same day if it’s on our truck. You should know what you’re getting before we ever pick up a tool.
Most West Covina homeowners discover the problem the hard way: a window that won’t close fully after years of shower steam, a sash that drops, or water staining on the drywall below the frame. The window itself might be fine. The rough opening, flashing, or seal around it usually isn’t.
Which ES Windows Models This Applies To
If your West Covina bathroom has an original ES Windows unit, it’s almost certainly aluminum-framed, single- or dual-pane, with a baked enamel finish that’s been fighting condensation for years. The most common series we see in homes near Eastland Center and the older tracts off Amar Road use a standard 2-1/4 inch frame depth, but that’s where the similarities end. ES Windows produced both side-swing casement units and horizontal sliders for bath openings, and the hardware differs completely between them. Look for a small metal tag on the interior edge of the frame, usually etched or stamped near one corner. If it’s gone, measure the visible glass width and height, then add 3-1/4 inches to both for the rough frame size. Getting this wrong means ordering the wrong sash twice and waiting two weeks for nothing.
OEM ES Windows parts are worth buying when the frame itself is still straight and the corner welds are intact. If the frame is pitted or the corners are pulling apart, a quality aftermarket sash from a local glazing supplier is the better spend. We make that call honestly on every West Covina job, and we don’t mark up parts we didn’t source.
Styles & brands we work with
Signs Your ES Windows Bathroom Remodeling Is Failing
- Condensation between the panes. The thermal seal has failed, which means the insulating gas has leaked out and the glass can’t recover. On dual-pane ES units, this is permanent. The fix is a new insulated glass unit, not a cleaning.
- The sash drops when you release it. On vertical sliders, the balance springs or block-and-tackle assemblies inside the jamb are dead. It’s a parts swap, but the wrong replacement can snap the new sash.
- You have to shoulder the window to close it. The operator arm or hinge on a casement unit is bent, or the track is packed with mineral buildup from hard water. Forcing it breaks the crank gear, which turns a $40 part into a $300 one.
- Water staining or soft drywall below the window. The frame was never flashed correctly to the water-resistant barrier behind the tile or fiberglass surround. Replacing the window alone won’t fix this. The rough opening has to be opened up and re-flashed.
- Visible corrosion at the bottom corners of the frame. That’s electrolysis from years of moisture sitting on raw aluminum where the factory finish wore thin. The frame is structurally shot and that’s a full replacement, not a repair.
See the difference
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After
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After
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AfterReplacement Cost & What’s Included
In West Covina, a straightforward ES Windows-compatible replacement inside an existing bathroom opening runs $9,000 to $14,000 when we’re also rebuilding surrounding tile or tub surround as part of the work. A full bathroom remodel that includes a new window, shower waterproofing, tile, vanity, and fixtures lands between $15,000 and $28,000 depending on material choices. Smaller scope jobs, like a sash swap with a new insulated glass unit, fall toward the bottom of the range.
Every quote is a written line-item price before work starts. No verbal estimate that grows. No change orders you didn’t approve in writing. Our 365-Day Done Right Promise applies to the entire bathroom remodel, window included: if anything isn’t right within a year of completion, we fix it at no cost. The Threshold Standard means you’ll know the technician’s name and face before they arrive, in a clean uniform with a photo ID badge at your door.
| Scope | Typical West Covina Installed Price |
|---|---|
| ES Windows-compatible sash or glass replacement + surrounding tile repair | $9,000 – $14,000 |
| Full bathroom remodel including window replacement | $15,000 – $28,000 |
| Tub-to-shower conversion with new window integration | $3,500 – $10,000 |
| Standalone window swap, no surrounding work | $4,500 – $8,000 |
DIY or Call Us?
You can check a few things yourself before calling. Look for the model tag. Clean hardened mineral deposits off the track, carefully, with white vinegar and a plastic scraper. Measure the visible glass. That’s useful information when you call us.
What you shouldn’t do is remove the sash on a spring-loaded slider without knowing exactly which balance system you have. The tensioned springs inside ES slider jambs can unload fast and take a finger with them. The same goes for prying out an old aluminum frame that’s still tied into stucco or waterproofing. One wrong pull and you’ve opened a leak path behind your tile. If you’re in West Covina and the window’s failed, call (707) 760-7579 and we’ll tell you over the phone whether it’s a truck-stock part or needs ordering. There’s no charge for the conversation.
FAQs
In West Covina’s hard water and steam-heavy bathrooms, an ES Windows unit installed in the 1980s or 1990s typically lasts 25 to 40 years before the frame finish or thermal seal gives out. Call (707) 760-7579 if your window is showing corrosion or condensation, and we’ll tell you whether it’s worth repairing or better replaced.
Yes, if the glass seal is the only failure and the frame is straight, we can replace just the insulated glass unit, which costs less than a full window. If the frame corners are corroded or pulling apart, repair money is wasted. Call (707) 760-7579 for an honest assessment, and the estimate is free.
A sash or glass swap is usually done in under two hours once parts are on the truck. A full window replacement with new flashing and waterproofing usually takes one day, and if it’s part of a larger bathroom remodel, expect the window work to happen early in the schedule.
We carry common sash balances, operator arms, cranks, and insulated glass units for the ES Windows series most often found in West Covina bathrooms. Odd sizes or older series may need two to five days from our glazing suppliers. Call (707) 760-7579 with your measurements and we’ll confirm stock before you wait.
Mason Remodeling Co West Covina is an independent service provider and is not affiliated with ES Windows. We also stock parts for KraftMaid, Cambria, and Silestone products.
Written by Isaac Pruett, Owner, Mason Remodeling Co West Covina at Mason Remodeling Co West Covina, serving West Covina and nearby areas.
If your ES Windows bathroom window has failed and you want a written price before any work starts, call (707) 760-7579. A live person answers. We’ll schedule a walkthrough, confirm compatibility on site, and hand you a line-item quote you can keep.
