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 Los Serranos, CA | Workshop Contractors
We provide independent ES Windows service across Los Serranos, CA, and the one thing that sets our ES Windows work apart here is that we treat every window opening as a drainage and flashing problem first, glass second. On hillside and canyon-edge lots in 91709, a window that leaks isn’t just a bad sash. It’s usually water getting behind stucco at the head because the slope above is directing runoff straight at the wall. That’s the difference. Call (844) 384-3361 and we’ll put boots on your lot, look at the slope, look at the window, and tell you what’s actually failing.
Why Los Serranos Residents Choose Us for ES Windows Service
We’ve worked ES Windows units across the Carbon Canyon edge long enough to know how their frames, sashes, and hardware actually fail on this side of the Chino Valley, from ranch-era outbuildings to newer hillside tract homes. We are an independent service and construction provider, not affiliated with or authorized by ES Windows. That matters because we have no incentive to sell you a particular product line. When a frame is sound, we repair it. When a frame is racked or the flashing is rotted behind it, we tell you honestly that a rebuild beats another repair. Noel Figueroa, our owner and general contractor, grew up in the Vineyard neighborhood of Ontario and learned framing from the same generation of tradesmen who built half that street. He’s spent decades working across the Inland Empire. Around Los Serranos, he’s known for finish work that holds up under a second look.
Styles & brands we work with







Common ES Windows Construction Problems We Solve in Los Serranos
- Weatherstripping and pile seals flattened by heat and Santa Ana grit. Los Serranos summers hit hard, and when the Santa Anas kick up, fine dust and sand work into every seal. Sliders and hung units start to rattle at the meeting rail, then leak. We replace flattened pile seals and realign sashes so they seat tight again.
- Sill and frame-head leaks from flashings that were never detailed for wind-driven winter storms. Older stucco openings around Carbon Canyon were often flashed with a quick kick-out, not a real pan. When a winter storm drives rain at the wall, water finds the gap. We cut back the stucco, install proper sill pans and head flashings, and seal the opening correctly.
- Out-of-square rough openings in ranch-era structures causing binding sashes. The older ranch homes on large lots near Carbon Canyon settled over decades. Frames rack, corner welds crack, glass seals fail. We square the opening, rebuild the buck if needed, and set the window so it operates clean instead of fighting the framing.
- Hardware and roller fatigue on ES sliders used as the main door to a shop or barn. On large-lot Los Serranos properties, the slider to the barn or patio gets more cycles than any front door. Rollers wear flat, tracks bend, and the door starts dragging. We replace rollers and tracks, not just lube them, so the door slides like it should.
- Crushed or missing weep-hole drainage on stucco-framed units. When a window sits at the bottom of a slope, stormwater runs straight down the stucco and into the sill track. If weeps are blocked, water has nowhere to go. We clear and rebuild the weep path, then regrade the soil at the wall so it drains away instead of pooling.
ES Windows Service in Los Serranos: What Local Conditions Mean for Your Equipment
Los Serranos lots along the Carbon Canyon edge sit on hillside and canyon-adjacent terrain where grading and drainage plans get real scrutiny. When we reset an ES Windows opening here, we’re often re-flashing and re-grading the drainage path around that wall, not just swapping a sash, because the slope above concentrates stormwater at the window head. A flat-valley contractor from Pomona or Chino might never see this. On a ranch-era house off Carbon Canyon, our crew pulled a set of aging ES Windows vinyl sliders whose frames had racked and whose sills were leaking behind the original stucco flashing. We reframed and squared the openings, installed new flashing and sill pans detailed for the slope-driven runoff above the wall, and set fresh ES sliding units. Then we verified drainage away from the window heads before we called it done. That’s the kind of job you only learn to scope by working this specific terrain.
ES Windows Models & Products We Service in Los Serranos
We service the ES Windows lines that show up most often in Los Serranos: vinyl single-hung and double-hung replacement units, sliding glass doors and sliders, horizontal rolling windows, and fixed and awning units set in stucco openings. Our parts approach is straightforward. We match genuine ES Windows replacement sashes, rollers, and weatherstripping where the frame is still sound, and we switch to quality aftermarket balances and pile seals when OEM parts are backordered or discontinued. For deeper work, we handle full window replacement, impact window installation, and roof replacement or installation, including the ES Windows sales & service guidance you’d expect from a contractor who actually stocks and installs these units rather than referring them out.
See the difference
Before
After
Before
After
Before
AfterES Windows Service Pricing in Los Serranos
What we quote always depends on what we find when we open the wall. A simple sash replacement is one thing. A racked frame with rotted flashing behind stucco is another. The table below gives you honest ranges for the work we do most often around Los Serranos.
| Service | Typical Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Roof Replacement | $8,000 – $20,000 |
| Roof Repair | $400 – $1,800 |
Your free estimate includes a site visit, a look at the slope and drainage around the window, and a written line-item scope. No change orders later because we actually checked the wall first. Call (844) 384-3361. We have served the Los Serranos service area long enough to know what these hillside lots do to a window.
Serving Los Serranos, CA — Our Local Coverage Area
We’re based in the Los Serranos 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 Los Serranos
On a slope-adjacent Los Serranos lot, it’s usually both. The frame has likely racked from years of ground movement, and the flashing behind the stucco was probably never detailed for slope-driven runoff. We open the wall, check the rough opening, reframe and square it if needed, install a proper sill pan and head flashing, and then decide whether the slider itself is worth re-setting or replacing. Call (844) 384-3361 and we’ll come look before you spend money on a repair that won’t hold.
The Carbon Canyon and hillside interface carries real wildfire exposure, and Santa Ana wind season makes ember intrusion a genuine threat. We specify Class A roofing and ember-resistant vents on any re-roof in this part of Los Serranos, and we coordinate the roof-to-wall flashing with any window work we’re doing so the whole opening is sealed as one system, not two separate jobs.
Yes. We’ve matched ES Windows single-hungs, double-hungs, and sliders into additions where the original ranch section still carried ES units. We measure each rough opening on site rather than trusting the old framing, because the original openings are rarely square anymore. Then we order or fabricate to fit the actual wall, not the blueprint.
We pull the units, cut back the siding or stucco to expose the rough opening, and inspect the sheathing for rot. If the wood is sound, we install new flashing and sill pans detailed for the drainage path and reset the windows. If the sheathing is compromised, we replace that section first. On Los Serranos large-lot properties, these outbuildings often got the cheapest original install, and deferred maintenance shows up at the window openings first.
Most single-window replacements with sound framing take a day on site. When we have to square a racked opening, replace flashing, or regrade the drainage path at the wall, a full rebuild can run two to three days depending on what we find after opening the wall. We’ll give you a written schedule with the estimate. Call (844) 384-3361 and we’ll scope it honestly.
Service Areas Near Los Serranos
We also serve Woodcrest, Anaheim, North Tustin, Orange, Loma Linda, and Buena Park. If you’re in the broader Chino Valley or just over the county line, we’re close. For ES Windows work in neighboring areas, see our ES Windows service in La Verne and ES Windows service in Eastvale pages.
Book Your ES Windows Service in Los Serranos Today
Build it right the first time. The second time costs twice as much and nobody’s happy about it. If your ES Windows units are leaking, binding, or rattling in Los Serranos, call (844) 384-3361. We’ll schedule a free estimate, walk your property, and show you what’s actually failing before you spend a dollar.
Written by Noel Figueroa, Owner at Workshop Contractors, serving Los Serranos, Yorba Linda, and the Chino Valley for 20+ years.