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ES Windows Construction in Los Gatos, CA | Workshop Contractors
We provide independent ES Windows installation, repair, and replacement across Los Gatos, and what makes our work here different comes down to one thing: we understand how these windows actually fail on hillside lots, not just how they’re rated on a spec sheet. As a licensed general contractor led by Noel Figueroa, we install and service ES Windows products under one contract, one schedule, and one accountable team. If you’re dealing with fogged glass, sashes that stick, or a sliding door that fights you every morning, call (844) 384-3361 and we’ll come look.
Why Los Gatos Residents Choose Us for ES Windows Service
Most window crews in the South Bay know flat-lot tract homes. Los Gatos is a different animal. We’ve installed and serviced ES Windows products across hundreds of remodels, additions, and hillside rebuilds here, so we know how their frames, glazing, and hardware hold up against marine-layer moisture, winter storm cycles, and Chapter 7A fire-hardening requirements. We’re an independent contractor and not authorized by ES Windows, but our installers work to ES’s published installation specs without the markup of a dealer network. Noel Figueroa grew up watching his grandfather build the family’s house in Pomona with his own hands, and he’s carried that same standard into every window wall, sill flashing, and mullion joint we touch. Build it right the first time. The second time costs twice as much and nobody’s happy about it.
Styles & brands we work with







Common ES Windows Construction Problems We Solve in Los Gatos
- Warped vinyl frames on west-facing hillside homes. The 95030 and 95033 ZIPs are full of west-facing exposures that catch direct afternoon sun after cool marine-layer mornings. Repeated heating and cooling cycles cause ES vinyl frames to bow, which means sashes bind and weatherstrip seals fail. We see this constantly in the hills above town.
- Corroded sliding glass door rollers and tracks. ES vinyl patio doors have drainage weep holes that clog with hillside runoff debris. When water sits in the track, rollers pit and the door starts grinding. We clean and re-slope sills, then swap in OEM rollers where the unit is still supported.
- Rot at wood-clad sill and mullion joints. Older Los Gatos bungalows and Victorians with ES wood-clad units take a beating during atmospheric-river storms. Cladding rot and failed paint at the joints is the first sign water’s getting where it shouldn’t be.
- Fogged dual-pane IGUs on 15- to 20-year-old ES units. Seal failure is often misdiagnosed as a frame problem. If the frame is sound, we replace the IGU. If the frame is warped or rotted, we recommend replacement over repeated patching.
- Chapter 7A compliance gaps on hillside homes. We regularly find original windows on WUI-designated lots that were never upgraded to ember-resistant standards. We re-flash rough openings and install Class A-compliant assemblies so the whole wall works together.
ES Windows Service in Los Gatos: What Local Conditions Mean for Your Equipment
Here’s something a contractor from Campbell or Cupertino rarely deals with: Los Gatos’ tree-preservation ordinance means a window replacement or addition anywhere near a protected oak or redwood can trigger an arborist report and setback review before anyone digs a footer. On a hillside lot in 95030 or 95033, that reshapes the entire foundation and window-wall plan. We’ve worked on remodels off Kennedy Road where the protected tree canopy dictated where a bank of ES windows could go, which changed the rough-opening layout, header sizing, and flashing sequence. The same careful planning applies to our Lexington Hills ES Windows service. You can’t just order windows and show up. You plan around what the Town will let you do, then you order the windows that fit that plan. That’s the difference between a crew that works Los Gatos and a crew that works around it.
ES Windows Models & Products We Service in Los Gatos
We service the ES Windows 700 Series vinyl single-hung, the 800 Series vinyl sliding glass door, aluminum-clad wood double-hungs, and the vinyl casement and awning series. For parts, we go OEM first: sashes, rollers, weatherstrip, and hardware where the unit is still supported. When an exact match isn’t available, we use quality aftermarket IGUs and glazing that match the sightlines and thermal performance. We don’t stock every part locally for Los Gatos, but our supplier relationships mean most common ES components arrive fast enough to keep a remodel schedule moving. If you’re replacing windows citywide, call (844) 384-3361 and we’ll tell you what’s available for your model before you spend anything.
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AfterES Windows Service Pricing in Los Gatos
Pricing on ES Windows work in Los Gatos depends on the model, the number of units, whether we’re repairing or fully replacing, and whether the job involves impact glazing or Chapter 7A compliance upgrades. Below are the ranges we typically see. The free estimate covers an on-site inspection, measurements, and a written line-item quote so you know exactly what’s included. No numbers change once work starts unless you change the scope.
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Home Addition | $45,000 – $130,000 |
Call (844) 384-3361 for an exact quote. Estimates are free, and we’ll walk you through repair-versus-replace with real numbers for your specific Los Gatos property.
Serving Los Gatos, CA — Our Local Coverage Area
We’re based in the Los Gatos 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 Gatos
Not automatically. ES vinyl units can be part of a Chapter 7A-compliant assembly, but the whole opening, including framing, flashing, and ember-resistant venting, has to work together. We install to ES’s published specs and Title 24/Chapter 7A requirements, and on hillside homes in 95030 and 95033 we verify the entire rough opening before signing off. If your existing ES units predate the ordinance, we can tell you what needs upgrading. Call (844) 384-3361 for a compliance check.
Yes, if the frame is still sound. Fogged dual-pane units on 15- to 20-year-old ES windows are usually a seal failure, not a frame failure. We handle similar ES Windows repair in Cambrian Park with the same approach. We replace the IGU and keep the original frame if it’s square and structurally solid. If the frame has warped from marine-layer heating and cooling cycles, we’ll tell you that too, and recommend replacement over a repair that won’t last.
It can add weeks to the permit process and change where your window wall sits. Any excavation near a protected oak or redwood can require an arborist report and setback review, which reshapes the foundation plan before window sizing even matters. We’ve seen this directly on hillside remodels, and we plan for it from day one. Call (844) 384-3361 and we’ll help you figure out whether your project falls under the ordinance.
Usually, yes. We source OEM ES rollers and replace the track components where the door is still supported. We clean and re-slope the sill so weep holes drain properly and the same problem doesn’t return after the first winter storm. If the frame itself is bowed or the door no longer seals, we’ll tell you replacement is the smarter money.
Full ES window replacement typically runs $4,500 to $15,000, while impact window installation ranges from $8,000 to $25,000 depending on the number of openings and the glazing spec. A hillside addition that includes ES window walls can run $45,000 to $130,000 depending on scope. Your exact number depends on your lot, your Chapter 7A requirements, and what you’re keeping. Call (844) 384-3361 and we’ll give you a written line-item quote, not a ballpark.
Service Areas Near Los Gatos
We also provide ES Windows service in nearby communities across the South Bay and beyond. If you’re in the Los Gatos service area or a neighboring town, we can help. Our team also covers ES Windows service in Brookdale and ES Windows service in Alum Rock, along with Woodcrest and other nearby neighborhoods. One contractor, every trade, from ES Windows sales & service to the full building envelope.
Book Your ES Windows Service in Los Gatos Today
If you need ES Windows work in Los Gatos, call (844) 384-3361 and we’ll schedule a free estimate. We’ve done this work here for years, and we know what your hillside lot, your Town permits, and your specific ES models actually require. One call gets it moving.
Written by Noel Figueroa, Owner & General Contractor at Workshop Contractors, serving Los Gatos and the surrounding South Bay communities.