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Get your free estimateCGI Windows & Doors in Clovis, CA | Lightwell Windows Fresno
We provide independent CGI window and door service across Clovis, from Clovis Window Replacement full-frame jobs to glass-only swaps on Estate and 7700 Series units. The one thing that makes our CGI work here different is that we see the same failure patterns on the same tract-home models week after week, so we know what’s wrong before we pull the sash. Call (559) 272-9650 for a free estimate.
Lightwell Windows Fresno has carried CGI sales & service for years, and our techs keep factory-spec CGI parts stocked in Fresno so a Clovis repair doesn’t wait on a distributor. We’re an independent service provider, not a manufacturer-authorized dealer, which means we answer to the homeowner, not a corporate warranty department. If your CGI window is failing, the fix should fit the home and the climate, not a sales goal.
Why Clovis Residents Choose Us for CGI Service
Most Clovis homes built between 1995 and 2010 went up with builder-grade CGI 3-Lite sliders and 7700 Series double-hungs, and those windows are now hitting replacement age at the same time. We’ve worked on enough of them to identify the series by the balance shoe and the meeting rail profile before we even read the sticker. Keith Yamada, who owns Lightwell Windows Fresno, trained in glazing and architectural millwork at Los Angeles Trade-Technical College and has spent more than two decades replacing windows and doors across the Central Valley. He’s the kind of installer who checks the afternoon sun angle before recommending a glass package for our Window Installation in Clovis, because a west-facing window here needs a different answer than the same window in a foggy coastal town.
Our techs arrive with shoe covers and drop cloths, background-checked and uniformed, and they follow the C.A.R.E. values on every visit: Clean up like it’s our own home, Ask before we move or touch anything, Respect your time and quiet hours, Explain the price before the work. When you’re dealing with a window that won’t stay open in a house with kids and a dog, the last thing you need is a crew that treats the living room like a staging area.
Styles & brands we work with










Common CGI Windows & Doors Problems We Solve in Clovis
- Warped vinyl meeting rails on CGI 7700 double-hungs. Clovis summers push past 100°F week after week, and the vinyl on builder-grade CGI 7700 double-hungs softens and bows. The meeting rail pulls away from the lock stile and leaves a daylight gap. We replace the sash with a new OEM balance, realign the jamb liner, and put in fresh interlock weatherstrip.
- Hardened interlock weatherstrip on CGI 3-Lite sliders. The bottom track on these sliders collects fine dust from nearby agricultural fields, and over time the weatherstrip dries out and cracks. That’s when dust starts showing up on the kitchen counter every morning. We swap the interlock weatherstrip and adjust the rollers, and the track seals like it should.
- Failed spiral balances on Estate Collection single-hungs. When the spiral balance gives out, the sash won’t stay up. It either slides shut on its own or slams when you let go. We carry OEM CGI balances in our Fresno vans and can usually get a Clovis homeowner’s window working the same visit.
- Clouded or argon-leaking IGUs on Estate fixed windows. A 2003 Estate fixed window that’s lost its argon shows a fog or a milky haze between the panes, and the room starts heating up even with the AC running. We measure, order the correct IGU, and swap it without touching the frame, as long as the frame is still sound.
- Dust line along the patio door track. The interlock on a 3-Lite slider is supposed to compress against the adjoining panel, but once the weatherstrip goes flat, Clovis dust finds the gap. You’ll see a fine gray line along the track every few days. The fix is usually weatherstrip and a roller adjustment, not a new door.
CGI Service in Clovis: What Local Conditions Mean for Your Equipment
Here’s something we see more in Clovis than almost anywhere else in the county. Walk into a 2000s tract home with an east-facing family room and look at the carpet. If there’s a sharp trapezoid of faded color on the floor in front of the window, the low-E coating in that insulated glass is dead, even if the window looks fine from the outside. Locals call it Clovis sun fade. The ultraviolet light is still getting through, and it’s bleaching the carpet and the sofa in an exact projection of the window opening. In Fresno or Madera, the housing stock is older and more varied, with trees and porches breaking up sun exposure. In Clovis, the newer tracts are tighter and the elevations repeat, so the same window on the same wall gets hammered by the same sun every afternoon. For CGI owners, that means checking the low-E performance of east- and west-facing glazing is not cosmetic. It’s the difference between a room that stays comfortable and an AC bill that climbs in July.
We pulled a warped CGI 7700 Series double-hung from a 2003 tract home in the Clovis Heights neighborhood not long ago. The heat had bowed the vinyl meeting rail so severely the lock wouldn’t catch, and fine dust from a nearby almond orchard was blowing through the gap onto the kitchen counter. Our tech replaced the sash with a new OEM balance, adjusted the jamb liner, realigned the meeting rail, and installed new interlock weatherstrip. The window now closes square with no daylight at the lock. The owner’s next project is the matching pair on the east wall, because the original IGUs have lost their low-E and the carpet below is already showing Clovis sun fade.
CGI Models & Products We Service in Clovis
We work on the full PGT-built CGI line: the Estate Collection aluminum single-hungs and horizontal rollers, the Estate 8900 Series impact-rated fixed and casement windows, the 7700 Series vinyl single- and double-hungs, and the builder-grade 3-Lite Slider / Horizontal Roller common in Clovis tracts. For frames that are still square and weathertight, we use OEM CGI-specific glazing beads, balances, and rollers. For older Estate aluminum frames with hardware that’s no longer manufactured, we source mill-certified aftermarket parts that match the original profile. We repair before replacing, resealing, rebalancing, or swapping IGUs unless the frame itself has warped or the sash tracks are worn past the point of a reliable fix.
Our recommendation on repair versus replacement is honest. A $200 balance replacement on a sound frame makes sense. A full replacement on a rotted or warped frame makes sense. What doesn’t make sense is selling a homeowner a new window when the old one just needs a part and an adjustment.
See the difference
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AfterCGI Service Pricing in Clovis
CGI repairs in Clovis typically run from $150 for a roller and weatherstrip adjustment up to $850 to $1,200 for a full sash replacement with new OEM balance and interlock weatherstrip on a 7700 Series double-hung. A replacement IGU for an Estate fixed window in a standard size usually falls between $350 and $600 installed, depending on the glass package. Full-frame replacement for a builder-grade CGI 3-Lite slider in a Clovis tract home generally runs $1,200 to $2,400, while an insert replacement for the same opening is typically $900 to $1,800. The exact number depends on the size, the frame condition, and the glass you choose, because an east-facing bedroom in Clovis is a different climate than a north-facing one. Every estimate is written, line by line, before any work starts. Call (559) 272-9650 to schedule your free estimate.
Serving Clovis, CA - Our Local Coverage Area
We’re based in the Clovis 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 Windows & Doors in Clovis
The spiral balance inside the jamb has failed, usually after years of thermal expansion and contraction from 100°F-plus afternoons. The sash no longer has counterweight, so it drops when you let go. It’s a common failure on Estate Collection single-hungs and some 7700 Series units. We replace the balance and test the sash for smooth operation before we leave. Call (559) 272-9650 for a quick diagnosis and a free estimate.
You can replace just the glass. Impact-rated windows are built to stay in the frame, but the IGU itself is still serviceable. We measure the existing unit, order a replacement with the correct laminated or tempered lite as needed, and swap it without disturbing the frame or the surrounding stucco. The frame doesn’t know the glass changed. If the frame is warped or the track is worn out, then a replacement becomes the smarter long-term move.
The interlock weatherstrip has flattened or cracked, so the two panels no longer compress against each other at the meeting point. Clovis sits close enough to agricultural land that fine dust finds that gap fast. The fix is new interlock weatherstrip and often a roller adjustment to bring the door back to square. Call (559) 272-9650 and we’ll take a look, dust line and all.
The low-E coating inside the insulated glass has likely degraded, so the window still reflects some light but no longer blocks the infrared heat. In Clovis, where summer sun is relentless, that means the room stays hot even with the AC cycling. A new IGU with a current low-E package will bring the room temperature down noticeably. We can check the glass and quote the replacement for your specific window.
If the frames are square, the jambs are solid, and the failure is in the glass or the balances, insert replacement windows are faster and less expensive. If you see water staining on the drywall, rot at the sill, or the frame has bowed from heat, a full-frame replacement is the only long-term fix. We’ll inspect the openings and show you the difference before you decide, and the written estimate covers whichever approach we recommend. Call (559) 272-9650 for a free evaluation.
Service Areas Near Clovis
We serve Clovis and the surrounding communities, including Clovis service area neighborhoods like Clovis Heights and Harlan Ranch. We also work in CGI service in Sanger, CGI service in Fresno, plus Reedley, Kingsburg, and Parlier. If you’re a CGI owner anywhere in the Fresno-Clovis area, your windows match the ones we see every week, and we can usually schedule a visit without making you wait.
Book Your CGI Service in Clovis Today
If your CGI windows are slamming, leaking dust, or fading the carpet, we’ll scope the problem and give you a written price before any work starts. Call (559) 272-9650 to schedule your free estimate. A window that fits right the first time doesn’t ask for your attention again, and that’s exactly the point.
Written by Keith Yamada, Owner at Lightwell Windows Fresno, serving Clovis and the Central Valley since 2010.
Six Reasons Homeowners Choose Lightwell Windows Fresno
Impact systems engineered to design pressures up to +/-100, matched to your wind zone - your openings hold when the storm arrives.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Florida homeowners average around 25% savings on the windstorm portion of their policy after protecting every opening - some homes qualify for more.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.