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ECO Window Systems Bathroom Remodeling: The Los Angeles Owner’s Guide
Bathroom remodeling around ECO Window Systems windows and frames in Los Angeles typically runs $10,620 to $33,040 for a full project, with smaller partial remodels landing between $5,900 and $14,160. We stock ECO Window Systems-compatible flashing, trim kits, and window-to-tile transition materials on our trucks, and most paired window-and-bathroom work is scheduled within two weeks of your estimate.
Most Los Angeles homeowners don’t set out to remodel the bathroom because of the window. They start with a leaking shower pan or cracked tile, then realize the ECO window frame near the wet wall has taken on moisture and the surrounding drywall is soft. One problem becomes two, and now you’re pricing a remodel that has to address both the waterproofing and the window envelope at once.
That’s the job we see most often in Silver Lake, Echo Park, and the Valley: a bathroom where the window wasn’t properly flashed or sealed against steam and overspray, and years of LA humidity cycles did the rest. The good news is the fix is predictable, and the price doesn’t have to be a mystery.
Which ECO Window Systems Models This Applies To
ECO Window Systems manufactures a range of vinyl and aluminum window lines, and the bathroom-specific issue is almost always the same: the original install left the nailing flange and perimeter seal exposed to shower moisture. The most common ECO series we work around in Los Angeles homes are their single-hung, horizontal slider, and casement/awning units, typically framed in either 2-5/8″ or 3-1/4″ jamb depths.
Identifying your exact model matters more than it sounds. Look for the white or silver ECO Window Systems sticker on the inside of the sash near the lock mechanism, or along the top edge of the frame when the window is open. The serial number usually embeds the series code. If the sticker’s gone, measure the visible glass width and height plus the frame depth from drywall face to drywall face. A 3-1/4″ frame depth means the window sits flush with a standard 2×4 wall; anything less and you’re likely working with a retrofit or replacement flange that needs a custom trim kit.
One compatibility gotcha we run into weekly: ECO’s casement and awning bathroom windows use an integrated sill dam that does not accept standard aftermarket sill pans without modification. If you’re rebuilding a shower or tub surround that terminates at an ECO casement, you need the OEM-compatible sloped sill adapter, not a generic pan from the shelf. We keep those adapters in stock. For the vinyl single-hung and slider units, a properly sloped PVC sill pan with sealed end dams usually does the job and saves real money over an OEM-only fix.
Sawyer Remodeling is an independent contractor and not affiliated with ECO Window Systems. We install and repair around their products every month, but we’re not their factory rep and we don’t pretend to be.
Styles & brands we work with
Signs Your ECO Window Systems Bathroom Remodeling Is Failing
- Peeling or bubbling paint on the drywall around the window. This means moisture is getting behind the trim or through the mounting flange. It’s the earliest visible symptom and usually appears on the lower corners first.
- Soft or spongy drywall within 12 inches of the window frame. By the time you can press into it, the paper face of the drywall has already wicked water upward and the framing behind it may be wet.
- Black or green staining along the window’s bottom track or the tile grout line directly beneath it. Condensation from shower steam pools on the sill, then runs down behind the tile if the sill-to-tile joint wasn’t sealed with a flexible, waterproof transition.
- A musty, damp smell that returns within hours after the bathroom airs out. That odor is trapped moisture in the wall cavity below or beside the window, not the surface drying.
- Visible cracking in the tile or grout where the shower wall meets the window trim. The wall assembly swells and contracts with moisture and temperature, and the rigid tile loses that fight first.
See the difference
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After
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After
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AfterReplacement Cost & What’s Included
For Los Angeles homeowners, a bathroom remodel that includes ECO window work, waterproofing, and fixture replacement runs $10,620 to $33,040. A partial remodel focused on the window wall, shower surround, and adjacent tile starts around $5,900 and tops out near $14,160 for a small bath. Here’s the line-item breakdown we put in writing on every estimate:
- ECO window flashing, sill pan, and seal replacement: $470 to $2,125
- Window-to-tile waterproof transition (Schluter edge trim, the metal strip that waterproofs where tile meets the window): $710 to $2,950
- Partial bathroom remodel around the window wall: $5,900 to $14,160
- Full bathroom remodel including ECO window work: $10,620 to $33,040
What moves the number is the scope of tile and waterproofing work, whether the framing behind the window needs repair, and whether you’re keeping the existing fixture layout or moving plumbing. The price we quote is the price you pay. It’s in writing before any tool gets picked up, and the 365-Day Done Right Promise covers the work for a full year after we close the job.
DIY or Call Us?
You can safely check a few things yourself: look for the ECO serial sticker we mentioned earlier, photograph the window from inside and out, and note whether the drywall feels soft anywhere around the frame. Do not start removing tile or cutting out drywall around a window in a wet wall. Moisture travels upward, and what looks like a six-inch repair is often a three-foot framing repair once you open it up. Getting the waterproofing sequence wrong around a window creates the exact problem you’re trying to solve, just slower.
If the tile is intact and the window still operates, call us and describe what you’re seeing. We’ll tell you honestly whether it’s a repair or a remodel, and what each route costs in Los Angeles before you commit to anything. Our number is (254) 272-5876.
FAQs
A properly flashed and sealed ECO window in a ventilated bathroom typically lasts 15 to 20 years before the perimeter seal needs replacement, but a poor original install can fail in five. Coastal-adjacent zones like Marina del Rey and Redondo Beach see faster seal degradation from salt air.
Yes, if the framing is sound and the surrounding tile is intact, we can replace the flashing, sill pan, and waterproof trim without disturbing the rest of the bathroom. The repair range for window-focused work is $470 to $2,125; have someone from our team look at it before deciding.
The window flashing, pan, and seal work inside a bathroom remodel typically takes one to two days, including dry time for the waterproofing layers before tile goes up.
We stock the common ECO sill adapters, sloped PVC pans, flashing tape, and Schluter edge trim on our trucks. Rare or series-specific components are sourced within a few days in the Los Angeles area, and we confirm the lead time in writing before the job starts. Call (254) 272-5876 for a free estimate on your specific project.
Written by Luca Romano, Owner, Sawyer Remodeling at Sawyer Remodeling, serving Los Angeles and nearby areas.
