New windows and doors improve comfort, cut energy bills and add long-term value to your home. Juniper Windows West Covina pairs proven product lines with our own installing crews for lasting performance - and a price we put in writing.
Choose your installer
The unit is half the job - the install is the other half. Our own background-checked crews measure, set, seal and insulate every opening, and they know the lines we quote inside and out because they install them every week.
Select the right products
Compare styles, materials and glass packages side by side until the fit is right for your rooms, your budget and your goals. The product-line comparison below is the place to start.
Prepare your home for install
Before install day we walk you through a short checklist - furniture pulled back, treatments down, a clear path to each opening - so install day is watch-it-happen, not scramble.
Compare the Lines We Quote
Every project is priced on the same lines, side by side - the price indicators below are relative, and your consultant shows exact numbers on your actual openings.
PGTThe line Florida homeowners arrive naming - the most Miami-Dade certifications in the industry$$$
- More Miami-Dade NOA certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe Florida value pick$$
- Vinyl systems built in Florida for Florida codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Miami-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
Why West Covina Homeowners Choose CGI Windows & Doors
We’re an independent CGI service in West Covina, and we repair, service, and install the brand’s hurricane-rated product lines, including Sentinel, Estate, Targa, and Classic series. What separates our CGI work is what we refuse to do: we don’t push a full replacement when a rebuild restores function, we don’t use flimsy aftermarket hardware on a door that weighs 200 pounds, and we don’t leave a job without testing every locking point and roller. Juniper Windows West Covina is not affiliated with or authorized by CGI, and we’re upfront about that. Call (350) 305-4609 to schedule service.
Why Trust Juniper Windows West Covina for Your CGI Windows & Doors?
CGI builds windows and doors that are designed to take a hit, but the components that make them work smoothly, the rollers, balance springs, weatherstripping, and multi-point lock hardware, wear out under West Covina’s specific conditions. Our technicians work on CGI products every week. We know that a Sentinel horizontal roller on a 6-foot panel doesn’t fail the same way an Estate casement operator does, and we diagnose accordingly. Sean Mackey, our owner, learned the trade at Los Angeles Trade-Technical College, where the curriculum was heavy on building science fundamentals: thermal performance, weatherproofing, and why a sloppy flashing job turns into a mold problem three winters later. That background shows up in the work. When we service a CGI unit in West Covina, we check the frame, the track, the hardware, and the seal, then we tell you exactly what needs fixing and what doesn’t. If I wouldn’t put it on my own house, I’m not putting it on yours.
Common CGI Windows & Doors Problems We Fix in West Covina
- Fogging between panes on older CGI insulated glass units. This is seal failure, plain and simple. West Covina’s inland temperature swings, hot days over 90°F followed by cool nights, cause the glass and spacer bar to expand and contract at different rates. Over a decade or two, the seal lets go and moisture creeps in. We replace the insulated glass unit with a new one matched to your CGI frame, not a generic drop-in that fights the existing glazing channel.
- Warped or sagging sashes on large CGI horizontal roller windows. The Sentinel and Targa series both feature wide, heavy panels. When the original plastic rollers wear flat, or the track picks up dust and grit from West Covina’s dry summers, the sash starts dragging, then binds, then jumps the track entirely. Adjusting roller height and replacing worn rollers with stainless steel tandem sets usually restores the glide.
- Corrosion on CGI multi-point locking hardware. West Covina doesn’t sit on the coast, but we get humidity spikes during winter rains, and many homes in the South Hills catch morning marine layer that lingers. Multi-point lock rods and keepers on Estate Collection French doors can stiffen and corrode, making the handle feel gritty or forcing you to fight the lock. We disassemble, clean, lubricate with the right compound, and replace any rod or keeper that’s beyond saving.
- Torn or brittle weatherstripping on CGI casement and awning windows. UV is brutal here. The original weatherstripping on CGI casements, especially west-facing units, hardens and cracks after years of afternoon sun. You’ll feel drafts in winter and see dust collecting on the sill in summer. We replace it with OEM-spec material and reset the sash compression so the seal actually seals.
- Failed balance springs on CGI double hung windows. Classic Series double hungs use a block-and-tackle balance system. When one side fails, the sash won’t stay up, or it tilts in but won’t stay upright. This is always a spring replacement, never a window replacement, and we stock the common CGI balance spring lengths to keep turnaround fast.
CGI Parts & Our Repair-vs-Replace Approach
We source genuine CGI parts, balance springs, roller assemblies, weatherstripping, and lock hardware, when they’re available, because the fit and performance are correct. For discontinued CGI models where OEM parts aren’t manufactured anymore, we use heavy-gauge aftermarket hardware, never the cheap imported stuff. Our honest replacement recommendation comes when the frame itself is compromised: rotten wood, cracked stucco-corner framing, or an opening that’s settled far enough out of square that shimming won’t correct the operation. A CGI frame that’s structurally sound but has worn hardware is a repair, not a teardown. We don’t push our Window Replacement services when a rebuild restores function. Call (350) 305-4609 and we’ll tell you which side of that line your unit falls on.
Our CGI Service Process – Step by Step
- 1
Diagnosis. We inspect the frame, track or hinge system, glass seal, and all hardware. We check for settling cracks in stucco around window corners, especially on hillside lots, because a shifted frame changes everything about how the sash operates.
- 2
Repair or replacement recommendation. You get a written price before any work starts. If it’s a repair, we show you the failed part and explain why it failed. If it’s a replacement, we tell you why repair isn’t viable.
- 3
The work. For repairs, we clean the track, replace the failed component, lubricate what needs it, and reset the sash. For installs, we flash stucco openings carefully, the detail that prevents leaks during West Covina’s occasional heavy downpours.
- 4
Testing. We cycle every window and door multiple times, check locking points engage cleanly, verify the seal, and take before-and-after photos.
- 5
Warranty. Every repair and installation is covered by our 365-Day Done Right Promise, 365 days, parts and labor, in writing. If a repair fails, your second visit is free, no charge, no argument.
CGI Products We Service & Install in West Covina
We work across the CGI catalog: Sentinel Series horizontal rollers and fixed lites, Estate Collection French doors and casements, Targa Series sliding and multi-slide units, and Classic Series double hungs and picture windows. That includes impact-rated glass, built to resist wind-borne debris without shattering, and the non-impact lines still common in older West Covina homes. We stock common CGI roller assemblies, balance springs, and weatherstripping locally for fast turnaround, and we can order less common parts direct when a job needs them.
We Also Service These Brands
CGI is one of eight product lines we work with, including CGI Windows & Doors in Citrus, CA. We also service and install PGT, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux. If your home has mixed brands, we’ll service them all on one visit.
FAQs – CGI Windows & Doors Service in West Covina
No. We are an independent CGI service provider. We’re not a CGI-authorized dealer or warranty station, and we say that plainly. What we bring is daily hands-on experience with CGI products and a repair-first approach. Call (350) 305-4609 to talk through your specific issue.
Yes, whenever CGI parts are available, we use them: balance springs, roller assemblies, weatherstripping, lock hardware. For discontinued models where the OEM no longer makes the part, we use heavy-gauge aftermarket equivalents selected for correct fit and load rating, not the cheapest option on the shelf.
Most CGI repairs, like a roller replacement or weatherstripping swap, take one to two hours on site. Glass unit replacement takes longer because the new insulated unit has to be ordered and cured, typically a week or two. We’ll give you a written timeframe with your quote. Call (350) 305-4609 for specifics on your model.
Sentinel Series, Estate Collection, Targa Series, and Classic Series. That spans horizontal rollers, French doors, casements, awnings, double hungs, fixed lites, and multi-slide units. If you’re not sure which series you have, a photo of the corner of the frame usually tells us.
If your CGI product is still under the manufacturer’s warranty, repairs done with non-OEM parts can affect that warranty. We’ll tell you upfront before we do any work. If the warranty is still active, the manufacturer’s process may be the better first step, and we’ll point you there honestly. Call (350) 305-4609 if you’re uncertain about your warranty status.
Almost always, yes. Multi-point lock failures are usually isolated to a bent rod, a worn gearbox, or a corroded keeper. We replace the failed component, not the door. Replacing the whole door is only necessary when the door slab or frame is structurally compromised. Call (350) 305-4609 for an exact diagnosis and quote, estimates are free.
That’s a failed balance spring on one side, typical on Classic Series double hungs after years of use. The block-and-tackle balance on one side has snapped or lost tension. We replace both balances as a pair so the sash lifts evenly. It’s a straightforward repair we complete in about an hour.
Glass replacement is possible on many CGI impact units. If the frame and sash are intact and square, we replace the insulated glass unit only. If the frame is cracked, the sash is warped, or the impact glazing channel is damaged, sash replacement is the better route. We’ll quote both paths when applicable.
Every two to three years at minimum. West Covina’s dry summers put dust and grit into the tracks, and heat accelerates roller wear, especially on west-facing South Hills windows. A quick clean, adjustment, and lubrication extends the life of the hardware and keeps the sash gliding. Call (350) 305-4609 to schedule a maintenance visit, we’ll quote it before we do anything.
Sometimes. If your existing CGI frames are in good condition and were built with the correct glazing channel depth, we can install impact-rated glass into them. If the frame isn’t engineered for the thicker impact glazing, a full window replacement is the only safe route. We’ll inspect and tell you straight. Call (350) 305-4609 to schedule that inspection, free estimates always.
Typical CGI repairs in West Covina run from about $120 for a simple weatherstripping replacement to $450 for a multi-point lock rebuild or two-sided balance spring replacement. Glass unit replacement in a CGI impact sash usually lands between $350 and $700 per unit depending on size, tint, and glass package. Full window replacement with CGI products starts higher and depends on the opening size and series. Call (350) 305-4609 for an exact quote, estimates are free and every price is in writing before work starts.
Book Your CGI Service in West Covina, CA
Whether it’s a fogged Sentinel panel, a sagging Targa roller, or a stiff Estate French door lock, we’ll diagnose it, price it in writing, and fix it right, just as we do with CGI repair in Monterey Park. Call (350) 305-4609 to schedule your free estimate. A live person answers, 24/7.
Written by Sean Mackey, Owner at Juniper Windows West Covina, serving West Covina since 2001.
Six Reasons Homeowners Choose Juniper Windows West Covina
Laminated glass and reinforced frames hold up to wind-driven rain, hail and flying debris, so your openings stay sealed when the weather turns.
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.
Tighter seals and insulated glass even out hot and cold rooms and stop the drafts at the frame.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.