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ES Windows Construction in Los Altos, CA | San Bernardino Contractors
We provide independent ES Windows construction service across Los Altos, from single-sash repairs on 1950s ranch houses to full window packages on second-story additions. The thing that makes our ES Windows work different here: we plan around Los Altos’s design-review calendar and clay-soil movement, which most window contractors never factor in. If your ES Windows sliders are binding or fogging in a 94022, 94023, or 94024 home, call (855) 473-5620 for a straight read on repair versus replacement. As an independent ES Windows service provider, we match OEM parts where the series is still supported and use quality alternatives when it isn’t.
Why Los Altos Residents Choose Us for ES Windows Service
We’ve spent years retrofitting ES Windows units into Los Altos’s 1940s – 1960s ranch housing stock as a General Contractor in Los Altos, and that inventory has a personality all its own. The aluminum sliders original to mid-century homes here rack and bind differently than the vinyl double-hungs from 1990s remodels. Ruben Castillo, our owner, learned framing and concrete work hands-on as a kid, and that background still shapes how we approach a window opening: square the rough opening first, then set the sash. We carry OEM-compatible ES Windows sash, hardware, and gaskets for the common Los Altos series, and we stock the aftermarket equivalents for discontinued extrusions so we’re not waiting on a parts shipment when your window’s already out. If it’s not built right the first time, you’re just paying for it twice.
Styles & brands we work with
Common ES Windows Construction Problems We Solve in Los Altos
- Fogged or failed IGU seals on south- and west-facing units. Los Altos summers are hot and dry, and that rain-shadowed heat bakes the edge sealant on double-pane ES Windows units until the argon escapes and condensation settles between the glass. We match the failed sealed unit to an OEM sash where available, or install a thermally equivalent aftermarket IGU when the series is discontinued.
- Frame racking and sash binding on clay-soil lots. Expansive clay under Los Altos swells and shrinks with winter moisture, and that seasonal movement works on rough openings over decades. We see ES Windows sliders that won’t track, locks that won’t line up, and frames that pull away from the stucco. The fix starts with the opening, not the glass.
- Water intrusion behind aluminum frames installed without sill pans. Original mid-century ES Windows aluminum units in Los Altos often went in with no flashing and no sill pan. When the October – April rains hit, water tracks behind the frame, into the wall cavity, and you don’t see it until the drywall stains or the baseboard swells. We pull the unit, install a proper sill pan and back-flashing, and re-set the window to drain.
- Worn weatherstripping and gaskets on older single-pane aluminum units. Wind-driven rain and fine dust push past tired gaskets on 1960s ES Windows aluminum sliders. It’s drafty in winter, dusty in summer, and the sash rattles in the frame. New OEM gaskets are a low-cost fix that buys years before a full replacement makes sense.
- Code and clearance issues on second-story additions and ADU infill. Los Altos’s design-review process means window sizes and profiles on visible facades get public scrutiny. We’ve had to order ES Windows units only after a Planning Commission review cleared the sight lines. That sequencing matters if you don’t want to store a pallet of windows for four months.
ES Windows Service in Los Altos: What Local Conditions Mean for Your Equipment
Here’s the piece most window contractors miss about Los Altos, and it shapes every ES Windows job we take. This town runs a strict one-house-per-lot, low-density culture with a small-town aesthetic that’s enforced through meticulous design review. A second-story addition, a window that changes the visible facade, even a heritage oak in the wrong spot can send your project to the Planning Commission with neighbors weighing in on sight lines. That means the ES Windows sizes and profiles for your addition often can’t be ordered until after that discretionary review clears. It’s a permitting sequence that flat, by-right neighboring towns don’t impose. On a down-to-the-studs remodel off a generous 94022 ranch lot, we opened a second-story wall to set new ES Windows units and found the existing first-floor slider frame racked from clay movement, its IGU already fogged. We re-squared the opening, added proper sill pan and flashing, replaced the failed sealed unit with an OEM-matched sash, and re-flashed the exterior, then matched the new upper units to the same sight lines so the addition passed design review without a resubmittal. That’s what building in Los Altos actually looks like.
ES Windows Models & Products We Service in Los Altos
We work on the full ES Windows range you’ll find in Los Altos homes: vinyl single-hung and double-hung replacement units from 1990s – 2000s remodels, aluminum sliding windows and patio sliders original to mid-century ranch houses, vinyl horizontal sliders on second-story additions and ADU infill, and picture or fixed units paired with casement frames in later remodel packages. We don’t default to a full window swap. If your sealed unit is fogged, we replace the IGU. If the lock is the problem, we replace the lock. When a frame is racked beyond square or the extrusion is corroded, we’ll tell you straight and quote a full replacement. For Los Altos turnaround, we keep common ES Windows sash and gaskets on hand and order the rest OEM-matched from our supplier network. We also handle this line beyond Los Altos proper through our ES Windows sales & service work across the broader region.
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AfterES Windows Service Pricing in Los Altos
What you’ll pay depends on whether we’re repairing a sash, replacing a sealed unit, or pulling and re-setting full frames on a Los Altos ranch. Here’s where the work lands:
| Service | Typical Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Roof Repair (flashing integration when re-setting windows) | $400 – $1,800 |
| Home Addition (window package included) | $45,000 – $130,000 |
Clay-soil racking repairs land on the lower end when we catch the opening early. Design-review resubmittals, scaffolding, and second-story access push costs up. Every estimate includes a written line-item breakdown, and we’ll walk the property to check each ES Windows unit before quoting. Call (855) 473-5620 to schedule a free estimate.
Serving Los Altos, CA — Our Local Coverage Area
We’re based in the Los Altos area and know this community well, including nearby ES Windows in Loyola. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – ES Windows Construction in Los Altos
Yes, if the swap changes the visible facade, the opening size, or the window profile on a street-facing elevation. Los Altos design review is discretionary, and neighbors do weigh in. Same-size, same-profile replacements on non-visible elevations rarely trigger review. We’ll tell you which category your job falls into before you order anything. Call (855) 473-5620 for a straight read.
Los Altos sits on expansive clay that swells with winter moisture and shrinks in summer. That seasonal movement racks the rough openings in older ranch homes, which binds the sash tracks on ES Windows aluminum sliders. The glass is usually fine; the opening moved. Fixing it means re-squaring the rough opening before re-setting the frame.
If you’re in a wildfire-conscious hillside-adjacent area of Los Altos, defensible-space and exterior material requirements can influence glazing choices, and tempered glass is mandatory near doors and low sills regardless of location. Impact glazing isn’t required for every Los Altos home, but we’ll check your specific lot conditions and current code before quoting. Call (855) 473-5620 and we’ll walk it with you.
Fogging means the IGU seal has failed, usually from years of Los Altos’s hot, dry summers baking the edge sealant until the desiccant inside saturates. Once moisture is in, it won’t clear. The fix is replacing the sealed unit with an OEM-matched sash or a thermally equivalent aftermarket IGU. We’ll tell you which is right for your series.
If the frames are square and the extrusions aren’t corroded, repairing gaskets, locks, and sealed units is usually the better value. If the frames are racked from clay movement or the aluminum is pitting, replacement makes more sense. We’ll give you a repair-versus-replace quote side by side. Estimates are free. Call (855) 473-5620.
Service Areas Near Los Altos
We serve Los Altos and the surrounding area, including projects in Los Altos service area communities. Ruben and our crew also run ES Windows work in ES Windows service in Los Altos Hills and ES Windows service in Palo Alto, where the housing stock and design-review demands are different enough to require a local read. We’ll come out, assess your windows, and give you a straight quote.
Book Your ES Windows Service in Los Altos Today
If your ES Windows units are fogged, binding, or leaking somewhere in Los Altos, call (855) 473-5620 and we’ll schedule a walkthrough. We’ll check every unit, give you repair-versus-replace numbers, and tell you honestly what’s worth fixing now. Estimates are free, and Ruben’s name is on the work.
Written by Ruben Castillo, Owner at San Bernardino Contractors, serving Los Altos and the surrounding Bay Area.