New windows and doors improve comfort, cut energy bills and add long-term value to your home. Juniper Windows Woodland Hills 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 Woodland Hills Homeowners Choose CGI Windows & Doors
We’re an independent CGI in Woodland Hills windows and doors service provider, and we repair, maintain, and install these impact-rated products for homeowners across the west San Fernando Valley. Our crews have spent years working on CGI Sentinel Series, Estate Collection, and Targa Series products, and we see the real-world failures those units develop after years of Woodland Hills heat, UV exposure, and hillside settling. We are not authorized by CGI, which means we answer to you, not a manufacturer’s service protocol. Call (831) 508-3441 for a written estimate on any CGI repair or replacement.
Here’s what matters: CGI builds impact-rated windows and doors engineered for hurricane zones, which means the hardware and glass packages are heavy, tightly sealed, and built differently than standard residential units. When something goes wrong with a CGI product in Woodland Hills, the fix is rarely a generic our Window Replacement services job. It’s a parts-level diagnosis. That’s the work we do.
Woodland Hills has a specific relationship with these products. Our valley gets 100+ degree summers, dense wildfire smoke in bad years, and long dry stretches that bake window seals and door hardware year after year. Add in the hillside lots and older ranch homes with settling foundations, and you get a set of failure patterns that are very Woodland Hills. We know exactly what those patterns look like.
Why Trust Juniper Windows Woodland Hills for Your CGI Windows & Doors?
Sean Mackey, our owner and lead installer, has spent the better part of two decades measuring rough openings, fitting frames, and making sure every seal is dead-on before he packs up his truck. He studied building construction technology at Los Angeles Trade-Technical College, and he’s built a reputation across Woodland Hills for straight talk about what a given frame profile will and won’t survive. Sean’s crews have worked retrofits on homes backing up to Warner Center and hillside properties throughout the area, and he’s seen enough seized CGI rollers and fogged laminated panes to know these products at the hardware level.
Our technicians train on CGI-specific hardware: the interlocking stiles on Sentinel 3-lite sliders, the multi-point locking systems on Estate Collection entry doors, the glazing pockets and laminated glass stack-ups that make these units impact-rated in the first place. When we open a CGI sash or pull a door panel, we know what we’re looking at. That matters because CGI parts are specific. A generic roller from a big-box shelf will not hold up under the weight of an impact-rated 3-lite slider, and using one can compromise how the panels interlock.
We also make warranty-safe decisions. If your CGI product is still under manufacturer warranty, we’ll tell you before touching anything, and we won’t install parts that would void that coverage. When we do the work, it’s covered by our 365-Day Done Right Promise: parts and labor, in writing, for a full year. If a repair fails, the second visit is free.
Common CGI Windows & Doors Problems We Fix in Woodland Hills
- Seized roller assemblies in 3-lite horizontal sliders. This is the most common CGI failure we see, especially in Sentinel Series sliders installed in hillside homes. Wood-framed houses in Woodland Hills settle over decades, and as the opening shifts even a fraction of an inch, the weight distribution on the rollers changes. The rollers bind, then seize. Debris from dry canyon winds makes it worse. The fix is removing the sash, replacing the OEM roller assemblies, cleaning the tracks, and resetting the interlocking stiles as Sean’s crew did on a Topanga Canyon view home where three Sentinel panels had locked up completely. The owner said they glide like the day they were installed.
- Weep hole blockages causing interior water staining. CGI Sentinel impact windows have weep holes designed to drain water that gets past the exterior weatherstrip. But after heavy Santa Ana rains, those weep holes fill with dust, pollen, and debris that have been building up through the dry months. Water backs up and stains interior drywall or sills. Homeowners assume the window is leaking. It’s usually a blockage. We clear the channels, verify drainage, and replace any weatherstrip that’s lost its compression.
- Fogging between laminated glass panes. CGI impact windows use laminated glass, which means two panes bonded to a plastic interlayer. When the edge seal on that laminated unit fails, moisture gets between the layers and fogs permanently. High-UV exposure in Woodland Hills accelerates edge seal breakdown, particularly on south- and west-facing elevations that bake all afternoon. This is not a wipe-off fix. It requires glass replacement or, on older units, full sash replacement.
- Misaligned strike plates and sagging on Estate Collection entry doors. CGI Estate Collection entry doors are heavy. They carry multi-point locking hardware, thick impact-rated glass, and reinforced frames. Daily use plus frame movement from soil shifting during wet winters causes the door to sag slightly, and the strike plates no longer line up. You’ll notice the deadbolt dragging or the handle needing a lift to engage. We reset the hinges, realign the strike plates, and adjust the threshold so the door seals tight again.
- Hard-to-open sashes after wildfire smoke events. Wildfire smoke carries fine particulate that works its way into the tracks and hardware of any sliding or casement window. CGI products have tight tolerances, so even a thin layer of smoke residue makes panels feel stiff. We clean the tracks thoroughly, lubricate the rollers with the correct product, and check that the weatherstrip hasn’t absorbed enough particulate to lose its flexibility.
CGI Parts & Our Repair-vs-Replace Approach
We use OEM CGI components whenever they’re available. The reason is simple: impact-rated windows and doors depend on exact fits and rated hardware. A CGI Sentinel roller assembly is engineered to carry a specific panel weight while maintaining the interlock that gives the system its structural rating. An off-shelf roller that “looks close” is not close enough. When a part is out of production or backordered for months, we source quality aftermarket equivalents that meet or exceed the original spec, and we’ll tell you upfront which one we’re installing and why.
We’re honest about the repair-versus-replace decision. For roller replacements, hardware swaps, weatherstrip renewal, and strike plate realignment, repair makes sense. For severe frame rot or glass delamination on older CGI units, we recommend full replacement. Here’s the hard truth: patching a frame that’s lost structural integrity on an impact-rated product doesn’t just look bad. It compromises the entire impact system. The laminated glass is only as strong as the frame holding it. On work like that, partial fixes are a waste of your money. Call (831) 508-3441 and we’ll give you a straight answer on which path is right for your situation.
Our CGI Service Process – Step by Step
- 1
Diagnosis. We start by identifying the exact failure: the model line, the hardware, the cause. Seized roller versus track debris, edge seal failure versus surface condensation, blocked weep hole versus actual water intrusion. You get a written diagnosis along with the repair scope. Price before work. That’s the Juniper standard.
- 2
Repair or install. For repairs, we use OEM CGI parts when available. For replacements and full frame installs, we remove the old unit, prep the rough opening, and set the new frame with full perimeter sealing. We don’t skip the flashing details, and we don’t rush the leveling on a heavy CGI unit.
- 3
Test. Every slider gets cycled repeatedly under load. Every entry door gets checked for square, plumb, and proper strike plate engagement. We inspect weep holes, drainage channels, and weatherstrip compression. If it doesn’t operate correctly before we leave, it’s not done.
- 4
Warranty. Every job is covered by our 365-Day Done Right Promise. Parts and labor, in writing, for a full year. If something isn’t right, we make it right. No charge, no argument.
CGI Products We Service & Install in Woodland Hills
Our team handles the full CGI lineup: Sentinel Series impact windows, including the 2-lite and 3-lite horizontal sliders that are so common on Woodland Hills hillside homes. Estate Collection windows and Estate Entrances entry doors, which carry the multi-point locking hardware and reinforced frames. Targa Series products as well. We stock common CGI roller assemblies, weatherstrip profiles, and locking hardware locally for faster turnaround, and we can order anything that’s not on our shelf. If you’re considering a new CGI install, we do full frame replacements and can walk you through what a CGI impact product will actually cost for your specific openings. Get the numbers right the first time, or you’re caulking over somebody else’s mistake.
We Also Service These Brands
CGI is a big part of our work in Woodland Hills, but we’re not a one-brand shop-we also offer CGI service in Encino. We also service and install PGT, CWS, ES Windows, and ECO Window Systems products. If you have a mixed house with different brands on different elevations, one call covers it.
FAQs – CGI Windows & Doors Service in Woodland Hills
The fog is between the laminated glass layers, which means the edge seal on the glass unit has failed and moisture is trapped inside. This is a glass replacement job, not a cleaning job. On older Sentinel units with significant delamination, we recommend replacing the sash or the full window. Call (831) 508-3441 for an exact diagnosis and a written quote, free.
Yes. We can replace individual roller assemblies, and it’s one of the most common repairs we do on CGI horizontal sliders in CGI in Van Nuys and Woodland Hills. We remove the sash, replace the rollers with OEM or spec-matching equivalents, clean the tracks, and reset the interlocking stiles. You don’t need a new window because the rollers failed. Call (831) 508-3441 and we’ll give you a written price before any work starts.
Look at the gap between the door and the frame. If the gap is wider at the top on one side and tighter at the bottom, or if the deadbolt drags and needs a lift to engage, the door has sagged out of square. This happens over time on heavy CGI entry doors, especially when the frame shifts with soil movement. We reset hinges, realign strike plates, and adjust the threshold to get the door sealing correctly again.
It depends on the part. For hardware like rollers, locks, and weatherstrip, quality aftermarket parts that meet or exceed the original spec generally do not affect the structural impact rating of the window or door, because the rating comes primarily from the laminated glass and the frame design. But we’ll always tell you what we’re installing and why, and we’ll never install a part that could compromise the system’s structural integrity. When OEM parts are available, we use them.
Wildfire smoke carries fine particulate that works into the tracks and roller assemblies of CGI windows. The tight tolerances on these units mean even a thin layer of residue creates real friction. The fix is a thorough track cleaning, proper roller lubrication, and a weatherstrip inspection. We do this regularly in Woodland Hills after smoke-heavy seasons. Call (831) 508-3441 to schedule it, and we’ll let you know exactly when we’ll arrive.
Basic CGI service calls in Woodland Hills typically run $150 to $350 for diagnosis and minor repairs like roller replacement or track cleaning. Larger repairs, like replacing a laminated glass unit on a Sentinel window, typically run $400 to $900 per sash depending on size. Full frame replacement of a CGI slider or entry door runs $1,800 to $4,500+ depending on the product line, opening size, and access. You’ll always get a written price before the work starts. Call (831) 508-3441 for an exact quote, with no obligation.
Book Your CGI Service in Woodland Hills, CA
If your CGI windows or doors need service in Woodland Hills, call (831) 508-3441. We’ll answer, ask the right questions, and schedule a visit with a written quote. You’ll know the price before anything starts.
Written by Sean Mackey, Owner & Lead Installer at Juniper Windows Woodland Hills, serving Woodland Hills since 2001.
Six Reasons Homeowners Choose Juniper Windows Woodland Hills
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.