Window Replacement in Los Gatos, CA

GS Design and Build provides expert window replacement for Los Gatos homeowners looking to improve comfort and curb appeal.

Call (415) 933-2547
  • Reduced heat gain during Los Gatos summers, lowering cooling costs without sacrificing natural light
  • Tighter seals that stop drafts and moisture from entering around the frame
  • Lower outdoor noise levels inside the home through multi-pane glass construction
  • Improved curb appeal that supports property value in Los Gatos's competitive housing market
  • UV protection that slows fading of interior floors, furniture, and window treatments
  • Low-maintenance frame options that hold up against the area's seasonal temperature swings
A Los Gatos home exterior showing newly installed replacement windows with clean frames and tight seals on a single-story residence. The updated windows complement the home's existing siding and trim as part of an exterior remodeling project by GS Design and Build.

Expert Window Replacement in Los Gatos, CA

GS Design and Build handles window replacement for Los Gatos homes of all styles, from hillside properties to older residences near downtown. We assess each opening, remove the existing unit, and install a properly fitted replacement that seals tight and performs well year-round. Los Gatos sits in California's Title 24 Climate Zone 4, which sets specific U-factor and solar heat gain requirements for all replacement windows. Every window we install meets those energy code standards. The area's Mediterranean climate brings hot, dry summers and mild, wet winters, which puts real stress on frames, seals, and glazing over time. We help you choose the right frame material and glass package for your home's age, architecture, and exposure. Whether you're replacing a single drafty unit or updating every window on the exterior, our team handles the full scope from measurement through final inspection. Call GS Design and Build to schedule your in-home assessment.

What's included

  • Reduced heat gain during Los Gatos summers, lowering cooling costs without sacrificing natural light
  • Tighter seals that stop drafts and moisture from entering around the frame
  • Lower outdoor noise levels inside the home through multi-pane glass construction
  • Improved curb appeal that supports property value in Los Gatos's competitive housing market
  • UV protection that slows fading of interior floors, furniture, and window treatments
  • Low-maintenance frame options that hold up against the area's seasonal temperature swings
15+ Years Residential Construction Experience
Family-Owned and Operated
ADU Specialists
Full Remodel Services
Multi-City Service Coverage

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Window Replacement FAQ

Common questions about window replacement in Los Gatos, CA.

Yes, we work on older Los Gatos homes, including those with non-standard opening sizes that require custom-fit replacements. We measure each opening precisely before ordering any product.

Replacement is the right call when you notice drafts, fogged glass between panes, frames that stick, or visible rot and seal failure. A site visit from our team gives you a clear answer specific to your home.

Yes, all windows we install meet California Title 24 Climate Zone 4 requirements for U-factor and solar heat gain. We handle the compliance side so you don't have to research it yourself.

We replace single windows or full-home sets for Los Gatos homeowners. The scope is based on your needs, not a minimum order requirement.

We install double-hung, casement, slider, picture, and awning styles to match the architecture of your Los Gatos home. Style selection happens during your in-home assessment.

Call our team directly to schedule an in-home visit where we measure your openings and review your options. Los Gatos homeowners receive a written, itemized estimate before any work begins.

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Call (415) 933-2547

What Santa Clara County homeowners say.

4.9
52 Google reviews

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From our very first appointment with Gershon, we felt confident we were in excellent hands. He listened carefully to what we wanted, offered thoughtful design suggestions, and walked us through the process and timeline in a clear, transparent way. Every step—from initial design and planning to the finishing touches—was handled smoothly, with consistent updates so we always knew what was happening next. The crew that worked on our home was hard working, professional, and very knowledgeable. They arrived on time, respected our home, and kept the work area as tidy as possible, which we really appreciated. The finished kitchen looks fantastic and functions even better than we hoped and the quality of the workmanship really stands out. Friends and family have already commented on how beautiful and well thought-out the space is. We would not hesitate to hire GS Design & Build again for future projects. If you’re looking for a top-tier contractor for your home remodeling, GS Design & Build are an outstanding choice.

Charles Decker, DC, ACN Google review · June 2026

GS Design and build did an amazing job uplifting my garage. Gheri was the most responsive of the contractors I got quotes from and he was very quick to respond with a reasonable estimate. He was always reachable and ensured the team was very punctual. His crew did a great job completing the job and handling surprises. I didn’t have to contact Gheri for anything during the job. The final work quality was great and my garage looks great! I will highly recommend GS Design and Build for your home improvements Update: i did a bathroom remodel with them 6 months after the garage upgrade and it was amazing! The team has remained consistent with their quality and workmanship!

viswanathan vaidyanathan Google review · June 2026

We used GS Design and Build for a room addition in Redwood City and couldn’t be happier. Geri helped us figure out the best layout for our new sunroom and made sure the style blended with the rest of our house. Her crew worked clean and fast, and everything passed inspection the first time. The project wrapped up on schedule and within our budget. The space gets amazing light and has quickly become our favorite part of the house. If you’re in the market for a room addition contractor who truly listens and executes, don’t look any further.

Ronda Richardson Google review · September 2025

Just got my home addition done! GS design helped us build a new bathroom and a new master bed in new construction. Everything was fully licensed and Geri managed everything at his end. I found Geri on Nextdoor and was nervous before signing him up but to my surprise, I couldn’t have asked for more! He has a lovely team of people who specialize in what they do. Geri cared for me and made sure I am satisfied at each step. He gave me a good run down of what he plans to do in the coming week which was very satisfying. Geri’s rates were also very competitive and he was reasonable when the work order changed. What I liked about Geri a lot is also that his interior designing skills are also very strong so he guided us when the size of the window was off or in making lovely choices of the flooring. You can trust Geri blindly and go with him. You will not regret it. Thanks Geri, for all the great work.

Vedant Dhandhania Google review · April 2022

We live in Redwood City and reached out to GS Design and Build for a second-story room addition. Geri coordinated with our structural engineer and managed the project with confidence. We were impressed with how smoothly everything went. Her communication throughout the process was excellent. The new space has completely transformed our home and given us the extra flexibility we needed. Top-notch room addition contractor and a pleasure to work with.

Deanna Callison Google review · September 2025

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Hours

  • Monday 8:00 AM - 7:00 PM
  • Tuesday 8:00 AM - 7:00 PM
  • Wednesday 8:00 AM - 7:00 PM
  • Thursday 8:00 AM - 7:00 PM
  • Friday 8:00 AM - 7:00 PM
  • Saturday Closed
  • Sunday Closed