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
Windows & Doors Before & After in West Covina, CA
Photos don’t lie, and when you’re about to spend real money on windows or doors, you deserve to see the actual work before you commit. We’ve been installing windows and doors in West Covina since 2001, and every job below reflects what we see day in and day out across the San Gabriel Valley: sun-baked frames, warped sliders, and doors that have given up. This is what a transformation looks like when the written price comes first and the work is backed in writing for 365 days.
Recent Transformations
Slider Replacement with Impact-Rated Glass in South Hills
Before
AfterThe original aluminum slider had been in that wall since the early 1980s, and the track was so worn the door jumped it every time anyone opened it. We removed the old frame, reframed the opening for a modern unit, and installed a PGT slider with impact-rated glass and a low-E coating, which is a fancy way of saying that room stops feeling like a solar oven by 2 p.m. The homeowner can now open the door with one hand, and the afternoon heat stays outside where it belongs.
Window Replacement After Years of West Covina Sun in Galster Wilderness Edge
Before
AfterEight windows on the south-facing wall were so UV-baked the seals had failed, and you could feel the heat radiating through the glass from three feet away. We pulled every one of them, squared up the openings, and installed ES Windows vinyl frames with dual-pane, argon-filled glass. The difference inside was immediate: no more fogged glass between the panes, no more furniture fading, and the air conditioner stopped running through the worst of the afternoon.
Front Door Replacement with Wrought-Iron Details in East Cortina
Before
AfterThe old wood door had warped to the point where you could see daylight through the top corner, and the security deadbolt barely caught. We installed a Therma-Tru fiberglass door with a full glass inlay, fresh weatherstripping, and a new threshold that seals tight. The front of the house immediately looked ten years newer, and the hallway no longer drafts cold air across the floor in winter.
Egress Window Conversion for a Bedroom in West Covina Foothills

This bedroom had one small window that never met egress code, which meant the room could never legally be counted as a bedroom. We cut a larger opening, reinforced the header, and installed a CWS vinyl window sized to code with a proper escape path. The room is brighter, safer, and now listed honestly when the house sells. Permits were pulled, and the inspection passed on the first visit.
Casement-to-Image Window Conversion in Merced Manor

The kitchen had two small casement windows that cranked open into the sink area, which meant one was nearly always blocked by dishes or a cutting board. We reframed the opening and installed a single ECO Window Systems picture window that spans most of the wall. The room now gets even, natural light from one clean opening, and the view over the neighborhood is finally the point of the room.
Sliding Glass Door to French Door Replacement in Woodgate

The old aluminum slider in the dining room was drafty, hard to lock, and the frame had started to bow in the middle. We replaced it with Therma-Tru French doors with internal blinds between the glass, which means no dangling cord blinds to clean or break. The room now opens wide for entertaining, the lock actually throws, and the door seals against the Santa Ana winds that whip through the valley.
Want Results Like These?
Every project above started with a written price before any work began, and every one is covered by our 365-Day Done Right Promise: if it isn’t right, we make it right, parts and labor, in writing. Call (350) 305-4609 to schedule your free estimate with Sean Mackey and the Juniper Windows West Covina team. A real 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.