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CGI Construction in Los Altos Hills, CA | Viceroy Construction
If you’re searching for CGI construction service in Los Altos Hills, we’re an independent contractor that installs, replaces, and repairs CGI windows and doors across the 94022 zip code. We’re not a manufacturer-authorized dealer, and we don’t pretend to be. What we are is a full-scope general contractor that has worked on CGI systems in Los Altos Hills long enough to know that every job here starts with the town’s planning department before it ever reaches a window frame. Call (877) 358-6557 for a free estimate.
Why Los Altos Hills Residents Choose Us for CGI Service
CGI windows and doors are engineered for impact resistance and thermal performance, but they only perform as well as the installation and the parts behind them. We’ve spent years troubleshooting CGI systems across the Peninsula, including Mountain View CGI service work, and we bring that hands-on experience to every Los Altos Hills project. Neil Drummond, our owner, trained in the building trades program at West Valley College and has spent nearly three decades doing construction work across the South Bay. He still walks every job himself before calling it done, because the details you don’t see are the ones that matter most. When you work with us, you get independent CGI expertise with no brand agenda. We use OEM CGI parts for critical components like glass units and balances, and we’ll tell you plainly when a repair makes sense and when full replacement is the better financial call. We also handle the full scope under one contract, so a CGI window replacement that turns into a siding or framing fix doesn’t require bringing in another contractor.
Styles & brands we work with
Common CGI Construction Problems We Solve in Los Altos Hills
CGI windows and doors fail in predictable ways, and the Los Altos Hills climate and housing stock make some failures more common here than elsewhere. Here’s what we see repeatedly:
- Fogging between dual-pane glass. Seal failure between the panes is the most common CGI issue we fix in Los Altos Hills. Hillside homes with intense sun exposure take a beating on south-facing and west-facing glass. Once the seal goes, moisture creeps in and the window fogs permanently. If the frame is sound and only the glass unit has failed, glass replacement is usually the right fix. If multiple seals are going, you’re looking at full window replacement.
- Water infiltration at vinyl frame corner welds. Winter downpours hit hard after months of dry weather, and west-facing CGI windows on many older Los Altos Hills homes take the brunt. Corner welds on vinyl frames can develop hairline cracks over time. Water finds them, and then you’ve got staining on the drywall and rot starting behind the siding. We source OEM-compatible sealants and replacement frame components when available, and we inspect the rough opening for hidden damage before reinstalling anything.
- Broken sash locks and corroded rollers. Los Altos Hills summers are dry and dusty, and that dust works its way into window hardware. CGI sash locks and sliding door rollers wear out faster in homes that sit on hillside lots with open exposure. We replace them with OEM parts when available, or high-quality aftermarket hardware that matches the original spec.
- Sticking or difficult-to-operate sashes. Thermal expansion is real in unshaded, south-facing installations. CGI sashes can bind or stick as the vinyl expands and contracts through a hot Los Altos Hills summer day. Sometimes it’s a simple balance adjustment. Other times the sash has warped beyond adjustment and needs replacement.
- Outdated or failing CGI impact glass on homes from the 1970s and 1980s. A lot of the original CGI windows installed in the 1970s and 1980s are still in service, but they’re past their useful life. Single-pane or older dual-pane units with discontinued hardware. We assess honestly: if the frame is sound and only the glass unit has failed, we repair. If the frame is compromised or multiple components are failing, replacement is more cost-effective.
CGI Service in Los Altos Hills: What Local Conditions Mean for Your Equipment
Here’s the one thing that separates CGI work in Los Altos Hills from every neighboring town: any window replacement visible from the street requires design review and must comply with the town’s 25% lot coverage limit. That means you often need planning approval before a single CGI window can be ordered. On a recent project in the Barley Hill neighborhood, we replaced a set of fogged CGI double-hung windows in a 1970s ranch home. The homeowners were surprised to learn that because their windows face the street, we first had to navigate the town’s design review process. Once approved, we installed new Low-E glass units with matching grids, restoring clarity and improving energy efficiency without altering the home’s exterior appearance. This is a Los Altos Hills-specific reality. Contractors who handle CGI repair in Loyola or work mostly in flatland subdivisions in Cupertino or Campbell may not anticipate it. We do, because we’ve done it. We factor design review time into the project schedule from the start, so you’re not waiting weeks after demo to learn you need a planning hearing.
CGI Models & Products We Service in Los Altos Hills
We install, replace, and repair the full CGI residential line, including the Traditional Series vinyl windows, Premium Series double-hung windows, Woodgrain Series sliding patio doors, and Custom Series picture windows. For critical components like glass units and balances, we source OEM CGI parts to ensure fit and performance. For weatherstripping and hardware where OEM is unavailable or backordered, we use high-quality aftermarket options that meet or exceed the original spec. We keep a working inventory of common CGI replacement parts in our South Bay shop, which speeds up turnaround for Los Altos Hills service calls. If you’re considering a broader project, we also handle CGI sales & service as part of full-scope remodels, including kitchen or bath work, siding replacement, and additions. Our access to brands like James Hardie, PGT, and Therma-Tru means a CGI window replacement can integrate seamlessly with other exterior upgrades.
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AfterCGI Service Pricing in Los Altos Hills
CGI work in Los Altos Hills is priced by scope, condition of the existing frames, and whether design review is required. Here are the ranges we work within:
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Home Addition | $45,000 – $130,000 |
What drives the cost? The number of windows, the CGI model line you choose, whether the existing frames can be salvaged, and whether the project triggers design review with the town. A free estimate from us includes a full assessment, a written line-item quote, and a clear explanation of what’s repair, what’s replacement, and what’s planning. Call (877) 358-6557 for an exact quote.
Serving Los Altos Hills, CA — Our Local Coverage Area
We’re based in the Los Altos Hills area and know this community well, with experience extending to CGI in Stanford and nearby areas. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – CGI Construction in Los Altos Hills
Yes, in most cases. Any window replacement visible from the street in Los Altos Hills requires design review and planning approval. Like-for-like replacements that don’t alter the home’s exterior appearance may still require staff approval. We handle the paperwork and submit drawings as part of our service, so you’re not navigating the planning department alone. Call (877) 358-6557 and we’ll tell you what your specific project will require.
If the frame is sound and only the glass unit has failed, we can replace the insulated glass unit (IGU) and restore the window to full clarity and energy performance. If multiple seals have failed or the frame shows signs of water damage, full window replacement is often more cost-effective in the long run. We’ll give you an honest assessment either way. Call (877) 358-6557 for a free evaluation.
The 25% lot coverage limit caps total development on your parcel, and an addition counts against that cap. Before we order CGI windows for an addition, we verify that the project footprint fits within the remaining coverage allowance and submit for design review. If you’re close to the cap, we’ll work with you on the design to stay compliant. Call (877) 358-6557 and we’ll walk you through the numbers.
CGI impact windows are not specifically fire-rated, but their reinforced frames and impact-resistant glass do provide incidental protection against radiant heat and flying debris. For homes in Los Altos Hills with wildfire exposure, we also discuss roof assemblies, siding choices, and defensible space as part of the full scope, similar to how we approach CGI repair in Los Altos projects. We source from brands like GAF and James Hardie alongside CGI so the exterior works as a system.
If design review is not required and the windows are in stock with the manufacturer, we can typically complete a window replacement in one to two days per elevation. If design review is required, add several weeks for the town’s planning process before ordering glass. The order itself for custom CGI sizes takes two to four weeks. We’ll give you a full timeline at the estimate. Call (877) 358-6557 to get started.
Service Areas Near Los Altos Hills
We serve Los Altos Hills and the surrounding South Bay communities, including Saratoga, Monte Sereno, Los Gatos, Cupertino, Campbell, and Cambrian Park. If you’re in a neighboring area, visit our Los Altos Hills service area page to learn more. We also provide CGI service in Seven Trees and CGI service in Boulder Creek for clients on the east and mountain sides of the region.
Book Your CGI Service in Los Altos Hills Today
If your CGI windows are fogging, leaking, sticking, or you’re planning a remodel that includes window replacement, call (877) 358-6557 to schedule your free estimate. We’ll assess the condition, check local planning requirements, and give you a written line-item quote. Same-week estimates are available for most Los Altos Hills homes.
Written by Neil Drummond, Owner at Viceroy Construction, serving Los Altos Hills and the South Bay since the early 2000s.