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 Altos, CA | Toolbox Contractors
We install and service ES Windows in Loyola and across Los Altos, and we do it as an independent construction crew, not a manufacturer rep. The thing that separates our ES Windows work here from everywhere else we operate is timing: in Los Altos, almost every window job is tied to a tear-down-and-rebuild or a second-story addition, and the window order doesn’t wait on framing. It waits on arborist reports and design-review sign-offs. If you’re pricing ES Windows for a Los Altos remodel, call Norm Castellano and the Toolbox team at (855) 382-3257. Tell me what you’ve got and I’ll tell you what it actually needs.
Why Los Altos Residents Choose Us for ES Windows Service
We’ve pulled ES Windows units out of 1950s ranch houses on Magnolia Avenue, and we’ve set brand-new ES vinyl single-hungs into second-story additions off El Monte Road. That range matters. A window crew that only does new construction won’t know why a 1968 ES aluminum slider has a pitted track, and a repair-only outfit won’t understand how to tie new rough openings into a non-conforming 1962 wall. We do both because Los Altos forces both on the same job. Norm Castellano run his first construction crews in the Inland Empire, framing additions and rebuilding ranch homes that needed their original window systems replaced correctly, not just swapped. We carry that into every Los Altos job. We are not authorized, sponsored, or endorsed by ES Windows. We’re just the crew that’s been called when the window order was wrong, the opening was out of square, or the design-review board wanted a different daylight opening than the architect drew. Our service includes ES Windows sales & service, and we handle it from Los Altos service area calls every week.
Styles & brands we work with







Common ES Windows Construction Problems We Solve in Los Altos
- Corner seams opening on south- and west-facing vinyl frames. Los Altos summers are dry and hot, winters are wet. ES vinyl frames on stucco reveals expand and contract against the hard stucco edge, and after enough cycles the corner welds crack. Water tracks behind the nail fin and into the rough opening. We remove the unit, re-flash the opening, and reset with the correct reveal gap.
- Pitted aluminum tracks and failed rollers on original ranch sliders. The 1948-to-1970 housing stock here shipped with single-pane ES aluminum sliders. Fifty years of leaf litter and grit from the oak and redwood canopy grinds the track surface down. The panel drags, the interlock seal gaps, and the window stops sealing. We replace rollers and recondition the track only when the extrusion is sound. If it’s corroded, we tell you to replace the unit.
- Binding sashes on remodels tied into old non-conforming framing. A down-to-studs remodel on a 1960s Los Altos ranch rarely finds square rough openings. When the new framing ties into the old footprint, an ES unit ordered to nominal size arrives out of square with the opening. The sash binds, the weather seal fails, and the window never operates right. We measure the corrected opening on site before the order goes in.
- Fogged dual-pane IGUs on second-story west-facing windows. ES dual-pane insulated glass fails at the butyl seal after 15 to 20 years of Los Altos solar load, especially on west elevations with no afternoon shade. The telltale sign is fogging and visible desiccant weep along the bottom edge. We spec aftermarket low-E glass packs sized to the existing frame when the profile allows it.
- Impact-rated units ordered for foothill-adjacent additions. Homes closer to the wildland-interface edge need fire-resistant construction details, and window decisions are part of that. ES impact-rated units are not automatically required on every Los Altos addition, but when they are, the lead time changes. We order early, before the design-review gauntlet eats your schedule.
ES Windows Service in Los Altos: What Local Conditions Mean for Your Equipment
Here’s what almost nobody tells you about ES Windows repair in Mountain View and ordering ES Windows in Los Altos. The city has no true starter-remodel market. Almost every window job we touch is part of a tear-down-and-rebuild or a second-story addition squeezed between existing neighbors on tree-lined streets. That means the window order is routinely held until the arborist report clears and the design-review meeting runs its course, not just until framing is done. On a narrow, oak-canopied lot off Magnolia Avenue in the 94022 core, we took a 1950s ranch down to studs for a second-story addition and found original ES Series 2000 aluminum sliders racked out of square where the new framing tied into the old non-conforming footprint. We reframed and re-flashed three rough openings, then set new ES vinyl single-hungs with OEM sills and aftermarket low-E IGUs sized to the corrected openings. We closed the job only after the city’s tree-preservation arborist signed off on the canopy protection plan. If you’re planning ES Windows on a Los Altos lot with mature oaks or redwoods, the tree canopy doesn’t just shade the glass. It changes the order schedule, the daylight design, and the rough-opening sizing. A contractor who skips the arborist variable learns that lesson the expensive way.
ES Windows Models & Products We Service in Los Altos
We work on the lines Los Altos ranch houses and rebuilds actually carry. ES Windows Series 2000 aluminum single-hung units show up constantly in original 1950s to 1970s homes. Series 5000 vinyl single-hungs are the common replacement choice on remodels. Series 3000 vinyl sliding glass doors bridge the interior to the patio on the large lots this town is known for. And Series 1000 aluminum fixed or picture windows still frame the wide front yards on the 94023 side of town. Our parts approach is pragmatic. We source OEM ES Windows replacement sashes, rollers, and weatherstrip when the frame is sound. For failed IGUs and obsolete aluminum profiles, we specify aftermarket glass packs and adapters that meet or exceed the original performance. If a frame is corroded or racked beyond shimming, we recommend full-unit replacement rather than chasing seals on a failing assembly. That’s the honest call. It’s also the call that saves you money on the second repair.
See the difference
Before
After
Before
After
Before
AfterES Windows Service Pricing in Los Altos
Window work in Los Altos is priced by scope, not by guess. Here’s what we see across the 94022, 94023, and 94024 ZIP codes.
| Service | Typical Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Home Addition (including ES window package) | $45,000 – $130,000 |
What moves the number? On a full remodel, the rough-opening corrections, new flashing, and second-story access drive more cost than the window units themselves. On a repair, the difference between pitted-track roller replacement and full IGU replacement is several hundred to a few thousand dollars. Every estimate we give is a written line-item quote, and it’s free. Call (855) 382-3257 and we’ll walk the job before we quote it.
Serving Los Altos, CA — Our Local Coverage Area
We’re a General Contractor in Los Altos 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 Altos
For a simple same-size window replacement on an existing 1950s to 1970s ranch, usually not. But if your lot is in the 94022 core with mature oaks or redwoods, or if the window work is part of a second-story addition or tear-down-and-rebuild, yes, the design-review and tree-preservation approvals come first. We coordinate the window order around those milestones so you aren’t sitting on units that arrive before the permit clears. Call (855) 382-3257 and we’ll tell you which path applies to your address.
If the track extrusion is intact and the corrosion is surface-level, we can replace the rollers, clean the track, and restore the weather seal. If the track is deeply pitted or the frame corner is corroded, a replacement is the better spend. We’ll show you the track under light and let you decide. Estimates are free at (855) 382-3257.
That’s a failed butyl seal on the insulated glass unit. West-facing glass in Los Altos gets direct afternoon sun with no canopy in many parts of the 94023 and 94024 areas, and after 15 to 20 years the seal gives out. The fogging is moisture between the panes. We replace the IGU with an aftermarket low-E glass pack sized to your frame rather than swapping the entire window when the frame is sound. Call (855) 382-3257 for an exact quote.
On most Los Altos ranch homes, the original ES Series 2000 aluminum profile can be matched visually with new ES vinyl single-hungs or ES Windows repair in Stanford and the current aluminum line. The bigger issue is the rough opening. When old non-conforming framing ties into the new second-story wall, the opening is rarely square, and the unit has to be ordered to the corrected measurement. We handle that on site. Call (855) 382-3257 and we’ll measure before anything gets ordered.
Not automatically. Los Altos sits close enough to the wildland-interface edge that fire-resistant construction details are a real consideration, and some projects with heightened exposure will require impact-rated or fire-resistant glazing. It depends on the specific site and the scope of the addition. We review the local code path and order the right ES unit for it. Call (855) 382-3257 and we’ll check your address.
Service Areas Near Los Altos
We run ES Windows installations and service throughout the 94022, 94023, and 94024 ZIP codes and the surrounding communities. For clients just outside the city lines, we also provide ES Windows service in Los Altos Hills and ES Windows service in Palo Alto. If you’re on the south end of the valley, the same crew covers the work.
Book Your ES Windows Service in Los Altos Today
Need an ES Windows quote on a Los Altos remodel or rebuild? Call Norm Castellano and the Toolbox Contractors crew at (855) 382-3257. We’ll walk the job, check the openings, and give you a written line-item estimate. Free.
Written by Norm Castellano, Owner at Toolbox Contractors, serving Los Altos and the surrounding communities.