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ES Windows Construction in Los Altos, CA | Framework Contractors
We provide independent ES Windows construction and repair across Los Altos, covering every ZIP from 94022 to 94024, and we’re also available as a General Contractor in Los Altos for larger projects. Our crews have worked on hundreds of ES Windows installations here, from original mid-century units to current-series replacements. What makes our work different in Los Altos is simple: we understand how the city’s 45% lot-coverage cap and fire-resistant codes shape every window decision on a remodel. Call (844) 681-3590 for a free estimate.
Los Altos isn’t a teardown-and-replace market the way some Peninsula cities are. The housing stock skews to 1950s – 1970s ranch homes on generous lots, many still carrying original single-pane aluminum windows. ES Windows units from that era show up constantly in our work here. We know the failure points, we know the parts, and we know the planning counter. That combination matters more than most homeowners realize until they’re three months into a variance process.
Why Los Altos Residents Choose Us for ES Windows Service
ES Windows isn’t a brand you learn from a manual. It’s one you learn from pulling apart 9000 Series aluminum sliders in a Country Club ranch and seeing exactly where the corrosion started. Noel Carbajal started with that kind of hands-on work decades ago, patching stucco and reroofing porches on weekends before he was old enough to drive. After the Construction Technology program at Santiago Canyon College, he spent thirty years on job sites across Orange County. The crews he built know window systems the way a mechanic knows an engine: by failure mode, not by brochure.
We’re an independent ES Windows service provider. That means we’re not tied to a manufacturer’s sales targets or a single product line. When we recommend a repair versus a replacement, the recommendation comes from what’s best for your Los Altos home, not from what a distributor wants moved. We source OEM ES Windows parts when they’re available, which matters for fit and finish on older 2000 Series steel units. When a line is discontinued, we use aftermarket components that meet or exceed the original specs. And we’ll tell you honestly when a window is past saving.
Our ES Windows sales & service work spans the full scope: impact window installation, whole-home replacement, and window work tied into additions. Los Altos homeowners call us because they want one contractor who can handle the window scope inside a larger remodel without juggling three specialty subs. That’s how we work: one point of contact, one contract, from the roof down to the foundation.
Styles & brands we work with







Common ES Windows Construction Problems We Solve in Los Altos
- Corrosion and pitting on 9000 Series aluminum frames. Los Altos foothill homes sit close to the wildland-urban interface, where winter rain and morning fog settle on aluminum frames that were never designed for decades of that exposure. We see pitting concentrated at the bottom tracks where water pools, and it eventually eats through the frame. Repair means cutting out the damaged section and rebuilding with OEM extrusion, not caulking over rust.
- Seal failure in dual-pane units. Los Altos summers bring intense sun with sharp temperature swings between day and night. That thermal cycling stresses the edge seals on dual-pane ES Windows glass, and eventually the seal breaks, the argon leaks out, and fog forms between the panes. The glass has to come out and be replaced – there’s no sealant fix that lasts.
- Hardware failure in 1970s steel-framed 2000 Series units. Original ranch homes across Los Altos still carry these steel windows, and the cranks, hinges, and locks are fifty years old. We regularly rebuild the hardware channels and replace crank mechanisms so the windows open and lock correctly again. It’s a repair most window companies won’t touch because the units are discontinued.
- Water infiltration at sill and head transitions. Where original ES Windows aluminum frames meet stucco on 1950s – 1970s Los Altos homes, the flashing has often degraded to nothing. Water gets behind the frame, stains the interior drywall, and rots the rough opening over time. We pull the window, rebuild the transition with modern flashing, and reset the unit so water sheds correctly.
- Wrong window choices for the fire-risk zone. Los Altos sits up against the foothills, and homes near the wildland-urban interface face fire-resistant material requirements that flatland Peninsula cities don’t. When homeowners buy windows without checking the code, they end up with units that won’t pass inspection. We check compliance before ordering, so the windows you buy are the windows that get approved.
ES Windows Service in Los Altos: What Local Conditions Mean for Your Equipment
Here’s what nobody tells you about Los Altos window work: the city’s 45% lot-coverage cap and design review for second-story additions mean many replacement projects need a variance, and that variance can take months. If your windows are tied to a remodel timeline – which they usually are – a contractor who knows the planning counter’s preferences can cut that approval time dramatically. We’ve done enough ES Windows work in Los Altos to know when a project triggers design review and when it doesn’t. A straight window replacement with like-for-like sizing typically doesn’t. A second-story addition with new window openings almost always does. That distinction changes when we order materials, how we schedule the crew, and whether you’re living with a hole in your wall for a week or three months. If you’re planning ES Windows in Loyola or ES Windows work in the Country Club neighborhood or anywhere in the Los Altos hills, ask your contractor about the lot-coverage math before you sign anything.
In the Country Club neighborhood, we replaced a full set of failed ES Windows 9000 Series aluminum sliders in a 1960s ranch home where corrosion had eaten through the frames and every seal was shot, similar to our ES Windows repair in Mountain View. We used OEM replacement tracks and new dual-pane glass, restored the operation, and finished in three days without touching the original stucco. That’s the kind of job that separates crews who know this housing stock from crews who only know new construction.
ES Windows Models & Products We Service in Los Altos
We service all three major ES Windows product families: the 9000 Series aluminum, the 4000 Series vinyl, and the 2000 Series steel. Most of the original ES Windows units in Los Altos ranches are 2000 Series steel or early 9000 Series aluminum. The current 9000 Series is what most homeowners choose for replacement work – it’s built for California coastal and inland conditions and handles the fire-resistance and energy-efficiency expectations in Los Altos better than the old steel did.
For parts, we keep common OEM tracks, rollers, locks, and weep covers in stock for fast Los Altos turnaround. Discontinued hardware gets matched with aftermarket components that meet or exceed the original specs – we don’t jerry-rig fifty-year-old window hardware and call it fixed. Your materials, our craftsmanship. Built to spec, not to shortcut.
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AfterES Windows Service Pricing in Los Altos
Window pricing in Los Altos reflects the high-value market and the labor rates it commands, but the ranges below hold for most ES Windows work we do here:
| Service | Price Range |
|---|---|
| Impact Window Installation | $8,000 – $25,000 |
| Window Replacement | $4,500 – $15,000 |
| Roof Repair | $400 – $1,800 |
Impact window pricing depends on the number of openings, the frame material, and whether the install triggers design review. Window replacement ranges on the low end when you’re swapping like-for-like single units, and climbs when you’re doing whole-home replacements on a 1960s ranch with thirty openings. A free estimate from us includes a written line-item breakdown, so you know exactly what you’re paying for before we start. Call (844) 681-3590 for an exact quote – estimates are free.
Serving Los Altos, CA — Our Local Coverage Area
We’re based in the Los Altos area and know this community well, just as we do for our ES Windows repair in Stanford. 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. We cut out the corroded sections of the 9000 Series aluminum frames and rebuild them with OEM extrusion, then re-anchor the window and restore the weather seal. Pitting concentrated at the bottom tracks is repairable if caught before the frame loses structural integrity. Call (844) 681-3590 and we’ll assess your frames for free.
Current ES Windows 9000 Series aluminum and 4000 Series vinyl units can meet Los Altos’s fire-resistance standards when specified correctly, but you need the right glass package and frame rating for your specific zone. Homes near the foothill wildland-urban interface face stricter requirements than homes in the flats, and we verify compliance before ordering any window. Call (844) 681-3590 to check your property’s requirements.
If your ES Windows project is part of a second-story addition or expands your home’s footprint, the lot-coverage cap can trigger design review and a variance. Straight like-for-like window replacement typically doesn’t, but any new window openings on an addition almost always do – which changes your timeline and possibly your window spec. We navigate that process regularly and can tell you early whether your project will face review. Call (844) 681-3590 for a straight answer on your specific property.
Common OEM parts like rollers, locks, and tracks are often in our local stock and can be installed within a week. Discontinued 2000 Series steel hardware may take two to three weeks to source or machine. If you’re mid-remodel and waiting on window parts, call (844) 681-3590 and we’ll give you a real lead time, not a guess.
Usually yes, if the openings stay the same size and the work is a direct replacement. Impact windows are heavier than standard dual-pane units, so we verify the rough opening and framing can handle the load – that’s a structural check, not a design review trigger. Call (844) 681-3590 for a free estimate, and we’ll confirm whether your project needs permits or review before we order anything.
Service Areas Near Los Altos
Most of our work stays in the Los Altos, Los Altos Hills, and Mountain View corridor, where the housing stock and building codes are consistent. But we regularly serve Los Altos service area homeowners across the wider Peninsula, including Palo Alto, Sunnyvale, Cupertino, and Saratoga. For nearby hillside work, see our ES Windows service in Los Altos Hills page – the fire-code requirements there are even stricter than in Los Altos proper. And for ES Windows service in Palo Alto, we handle the same 9000 Series replacements in Eichlers and ranch homes with different design-review challenges.
Book Your ES Windows Service in Los Altos Today
If your ES Windows are pitted, fogged, or failing, get an assessment from a crew that knows this housing stock. Call (844) 681-3590 to schedule your free estimate in Los Altos. We’ll show up with a plan, give you a written line-item quote, and leave the site cleaner than we found it. Build it right the first time – the second time costs twice as much and nobody’s happy.
Written by Noel Carbajal, Owner at Framework Contractors, serving Los Altos since 2005.