A Penhallow company - serving San Jose, CA
An open living room and dining area after a whole-home remodel
CGI · Santa Clara, CA

CGI Construction in Santa Clara, CA

Free Estimate on SiteCalls Answered by a Live Person, 24/7Background-Checked TechniciansA Local Team in San Jose
An open living space after a whole-home remodel
A remodeled living room with built-in shelves around the fireplace
A whole-home remodel with the living, dining and kitchen areas opened up
A remodeled family room with new windows and a window seat
A remodeled primary suite with built-in wardrobes and a window seat
A galley kitchen opened up to the dining room with a new peninsula
A walk-in shower with large-format tile and a built-in niche
A wide opening with a new beam where the kitchen wall was removed
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CGI Construction in Santa Clara, CA | Penhallow Remodeling San Jose

We provide independent CGI window and door service across Santa Clara, from the post-war ranch homes near Benton Street to the newer condos rising off El Camino Real. The one thing that makes our CGI work different in this city is that we plan for the archeological review requirement north of El Camino before we touch a single frame. Our team works on CGI Sentinel, Estate, Targa, and Classic lines every week, so we know which units hold up to Santa Clara’s seismic movement and which older models need early retrofitting. If you need CGI sales & service, call us at (669) 274-2362 and we’ll give you a written number before any work starts.

Call (669) 274-2362

Why Santa Clara Residents Choose Us for CGI Service

Trevor Nash has spent nearly two decades running remodeling and construction projects across the South Bay as a General Contractor in Santa Clara, including kitchen and bath gut-jobs in San Jose’s Willow Glen neighborhood. He knows what a worn CGI seal looks like after fifteen years of Santa Clara sun, and he’ll tell you plainly whether a repair makes sense or whether replacement is the honest call. We work on CGI windows and doors across Santa Clara’s post-war ranch homes and modern infill projects daily, so we know exactly which models hold up to seismic movement and which need early retrofitting. And because we’re local, we don’t treat a Santa Clara service call like a trip across the bay. You get a written price up front, a defined arrival window, and a 365-Day Done Right Promise in writing on every job.

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Styles & brands we work with

Kitchen remodeling
Kitchen remodeling
Bathroom remodeling
Bathroom remodeling
Home additions & ADU
Home additions & ADU
Roofing
Roofing
Windows & doors
Windows & doors
Driveway & pavers
Driveway & pavers
Fence
Fence

Common CGI Construction Problems We Solve in Santa Clara

  • Fogging between panes on older CGI Sentinel units. Homes near El Camino Real and the older neighborhoods off Benton Street see this constantly. Decades of dry, sunny exposure wear down the seals, and moisture creeps between the glass. Once the seal fails, the insulating value drops and the glass fogs. We check the frame before recommending repair or full replacement.
  • Sticking or misaligned sliding panels on CGI Targa doors. Santa Clara has a large stock of 1950s slab-foundation ranch homes, and slab settling causes frame racking over time. The door panel drags, the rollers wear unevenly, and eventually the lock stops lining up. We can often re-align and rebuild the track, but if the slab has shifted beyond a certain point, we’ll tell you before we quote.
  • Corrosion on aluminum frames of CGI Estate windows. Landscaping sprinkler overspray is a quiet killer here. Year after year, water hits the frame, and the aluminum oxidizes. We see this on Estate Series units installed in the mid-2000s, especially near flower beds and lawns. If caught early we clean and seal; if the frame is pitted through, replacement is the only honest fix.
  • Failed balance springs on double-hung CGI Classic windows. Rental properties with high tenant turnover go through these faster than owner-occupied homes anywhere in the city. The window gets yanked open, slammed shut, and the spring gives out. We stock common balance assemblies for faster turnaround.
  • Seismic stress on newer impact windows. Santa Clara’s high seismic risk means structural retrofitting and shear wall installation are common needs. After a tremor, we get calls about windows that no longer close square or doors that bind. We check the opening, the frame, and the surrounding wall before deciding whether the issue is the unit or the structure behind it.

CGI Service in Santa Clara: What Local Conditions Mean for Your Equipment

Here’s something most contractors won’t mention until you’re halfway through a project: a permit expediter at Santa Clara City Hall jokes that every remodel on the north side of El Camino Real triggers an archeological review because of the old orchard sites underneath. That’s not a punchline for homeowners, it’s a timeline. Any window or door opening change on a CGI-installed home in that zone may require additional permitting steps that contractors in neighboring Sunnyvale or San Jose don’t face. We’ve navigated this enough times to account for the review window in our schedule and our written estimate, so you’re not surprised by a three-week delay after demo day. If you’re on the north side of El Camino and planning to enlarge a window opening or swap a sliding door, ask us about the review before you sign anything.

CGI Models & Products We Service in Santa Clara

We service the full CGI residential lineup including Sentinel Series impact windows, Estate Collection impact windows, Classic Series impact doors, and Targa Series impact sliding glass doors. For warranty-sensitive components like glass packs and rollers, we source OEM CGI parts when available. For discontinued hardware, we use high-quality aftermarket equivalents that meet Miami-Dade standards. We keep a rolling stock of common seals, rollers, and balance assemblies in our local inventory for faster Santa Clara turnaround. We always prefer repair over full replacement when the frame is square and the glass is intact, but we recommend full replacement when multiple units show seal failure or frame corrosion.

Before & after

See the difference

Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

CGI Service Pricing in Santa Clara

Service Price Range
Impact Window Installation (per window) $800 – $2,500
Window Replacement (per window) $450 – $1,500
Emergency & Storm Damage Repair $400 – $1,800

What moves the number on a CGI job in Santa Clara is usually the condition of the rough opening, whether the existing frame is square, and whether you’re north of El Camino Real where the archeological review adds permitting time. A straightforward replacement on a well-maintained 1980s home runs toward the lower end. A 1962 ranch with corroded frames and a settled slab runs higher. Every estimate we give is free and written, so call (669) 274-2362 and you’ll know the exact number before we touch a tool.

Serving Santa Clara, CA - Our Local Coverage Area

We’re based in the Santa Clara 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 – CGI Construction in Santa Clara

Service Areas Near Santa Clara

We serve Santa Clara service area and the surrounding communities including San Jose, Mountain View, Cupertino, Los Gatos, and Los Altos. If you’re in CGI service in Mountain View or CGI service in San Jose, the same written price, arrival window, and 365-Day Done Right Promise applies.

Book Your CGI Service in Santa Clara Today

We put the number in writing before we start, and we stand behind the work for 365 days. Last spring our crew replaced three fogged CGI Sentinel casement windows during our Bathroom Remodeling in Santa Clara on a 1962 ranch on Benton Street near Santa Clara University. The original aluminum frames had corroded from years of sprinkler overspray, so we pulled the full units, installed new Estate Series impact windows, and added new flashing to prevent future moisture intrusion. The homeowner was thrilled that the new units passed the city’s seismic retrofit inspection the first time. Call (669) 274-2362 for your free estimate.

Written by Trevor Nash, Owner at Penhallow Remodeling San Jose, serving Santa Clara and the South Bay since the Kingswell founding in 2004. Give me the real problem and I’ll give you the real number.

Ideas for every room in the house

Built-ins, window seats, family rooms and staircases: the changes that make a whole house work better.

Read our remodeling guides
A dining nook with a built-in banquetteA remodeled laundry and mudroom with a bench, cubbies and painted cabinetsA built-in window seat in a bay windowA remodeled hall bathroom with patterned floor tile and painted wallsA small remodeled galley kitchen with cabinets to the ceilingA low-threshold walk-in shower with a bench and grab bar

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Every project below starts the same way: a free on-site visit and a written price.

Getting started with Penhallow in San Jose

Every project starts with a conversation and a written price. Here is how to take the first step.

A project lead measuring a kitchen with the homeowner during a free estimate

Free on-site estimate

A project lead walks the job with you, measures it and hands you a written, line-item price. No obligation.

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Your San Jose team

A local crew that works across San Jose and the towns around it, to the same written standard as every Penhallow location.

Areas we serve
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Read our written promise

What we promise on every job, written down, with the terms spelled out before any work starts.

Our promise
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