New windows and doors improve comfort, cut energy bills and add long-term value to your home. Juniper Windows Santa Clarita 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
Window Company in Sylmar, CA
Juniper Windows & Doors is the window company Sylmar homeowners call when single-pane aluminum windows from the 1960s start failing under 100°F heat and Santa Ana wind pressure. Sylmar sits in the northeast corner of the San Fernando Valley, tucked between the Santa Susana and San Gabriel Mountains, and that geography shapes every window and door decision here. Homes built between 1950 and 1980 dominate the area, which means most jobs involve replacing heat-warped frames, failed seals, and sliding patio doors that no longer seal tight. We handle window replacement, window installation, and door replacement across Sylmar with a written price before any work starts. Call (661) 523-0347 for a free estimate.
Why Sylmar Homes Are Different
Sylmar routinely records some of the hottest temperatures in Los Angeles, with summer days pushing past 100°F while humidity stays low. That heat, combined with intense UV exposure on west-facing elevations, breaks down window seals faster than almost anywhere else in the Valley. We regularly see sun-blasted doors with warped frames and double-pane windows that have gone cloudy from seal failure. Then comes fall: Santa Ana winds whip through the passes and put real pressure on every weatherstrip and latch. Our crews account for wind load on north-facing windows and check that each installation is airtight before we call a job done.
Most Sylmar homes are mid-century builds, typically stucco with aluminum-frame windows and sliding glass patio doors. Aluminum transfers heat directly into the house, which is why air-conditioning bills climb every July. Replacing those frames with thermally broken options or vinyl reduces that transfer significantly. We also work with homeowners in neighborhoods like Rancho Cascades, Lake View Terrace, and the foothills along Sayre Street, where wind exposure shifts depending on how close the house sits to the canyon mouths. Permitting in the City of Los Angeles applies here, and we pull the right permits for structural changes to window openings or exterior door replacements.
- Extreme summer heat demands low U-factor glass and UV-resistant coatings
- Santa Ana winds require proper anchoring and airtight flashing, especially on north and east exposures
- Older housing stock means aluminum frames, single-pane glass, and sliding doors due for replacement
- Mountain-adjacent terrain puts some homes closer to wildfire smoke, making tight seals and ember-resistant screens worth considering
Our Main Sylmar Services
Sylmar homeowners call us most often for two things: pulling out old aluminum single-pane windows and replacing entry or patio doors that the sun and wind have beaten up over decades. Each service has its own page with full pricing and detail.
Window Replacement in Sylmar
Most Sylmar homes still have their original aluminum single-pane windows, and by now the seals are shot and the frames are pitted. Window Replacement in Sylmar covers ripping out those old units and installing energy-efficient replacements with low U-factors that actually reduce AC loads. We measure every opening precisely, account for stucco depth and frame warping from decades of heat, and confirm the new glass meets current code for wind load where the canyons funnel gusts down into the neighborhoods. You get a written price before we order anything.

Window Installation in Sylmar
Some Sylmar jobs involve new construction, additions, or openings where no window currently exists. Window Installation in Sylmar handles those projects from rough opening to trim. In this climate, the installation is where the performance lives: an airtight seal keeps cool air in during July and keeps embers and smoke out during fire season. We reinforce the rough opening to handle Santa Ana wind pressure and flash everything properly against the stucco exterior. The 365-Day Done Right Promise covers the completed work in writing.

Door Replacement in Sylmar
West-facing doors in Sylmar take a beating: direct afternoon sun, triple-digit heat, and wind-driven grit. Door Replacement in Sylmar covers entry doors, patio sliders, and French doors that have warped, cracked, or stopped closing cleanly. We check the threshold, the jambs, and the weatherstripping, then recommend a door that will hold its shape through the next decade of Sylmar summers. Every door gets a written price first, and installation is covered by the 365-Day Done Right Promise.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Sylmar
We work with ES Windows, ECO Window Systems, Mr-Glass, and Therma-Tru, which gives us real flexibility on glass packages, impact ratings, and door configurations. Parts are stocked through our Los Angeles-area supply chain, which keeps most Sylmar jobs moving without long waits. See our brands for full product details.
Pricing for Window Company in Sylmar, CA
Here are the typical ranges Sylmar homeowners see for common window and door jobs. These are all-in figures for standard mid-century homes, and we’ll lock your exact number in writing before ordering anything.
| Service | Typical range in Sylmar |
|---|---|
| Standard vinyl window replacement (per opening) | $450 – $850 |
| Aluminum to vinyl full-frame retrofit | $700 – $1,300 per opening |
| Single-pane to double-pane glass upgrade | $350 – $700 per unit |
| Sliding glass patio door replacement | $1,800 – $3,500 |
| French door replacement | $2,200 – $4,800 |
| Entry door replacement (single) | $1,500 – $3,200 |
| Impact-rated window upgrade | $800 – $1,600 per opening |
| New construction window installation | $650 – $1,200 per opening |
| Transom or picture window | $900 – $2,200 |
| Full-house window package (8 – 12 windows) | $6,000 – $14,000 |
Prices in Sylmar move based on three things: how much wind-load reinforcement the elevation requires, whether the existing frame is so warped that a full-frame replacement is the only safe option, and whether you’re upgrading to impact-rated glass. Our written quote locks the number in before any work starts, so a change order at the door is not something you’ll ever see.
Neighborhoods We Serve in Sylmar
We cover all of Sylmar, from the foothills to the flats. Most of our Sylmar jobs are within a 20-minute drive from our Los Angeles dispatch point, which means we can schedule precisely and show up when we say we will.
- Rancho Cascades
- Lake View Terrace
- Foothill Trails
- Hubbard Street corridor
- Sayre Street area
Service Area – Cities Near Sylmar
Juniper Windows & Doors serves Sylmar and the surrounding northeast Valley. If you’re nearby, we also cover San Fernando, CA, Mission Hills, CA, Granada Hills, CA, and Panorama City, CA. The same written-price guarantee and 365-Day Done Right Promise applies in every one of these cities.
Serving Sylmar, CA - Our Local Coverage Area
We’re based in the Sylmar 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 About Window Company in Sylmar
We schedule Sylmar jobs on a fixed arrival time, not a four-hour window. Most standard window or door projects can be booked within one to two weeks, and we send a live arrival time before we head over. Call (661) 523-0347 to check current availability.
In the City of Los Angeles, permits are required when you’re changing the size of an opening or doing structural work around a door or window. We handle permit filing for those projects and inspections pass before we consider the job closed. A simple like-for-like replacement usually doesn’t need one.
Yes. We serve every Sylmar neighborhood, including Lake View Terrace, Rancho Cascades, and the canyon-adjacent streets around Sayre. Wind-load requirements shift in the foothills, and our crews adjust detailing accordingly. Call (661) 523-0347 for a free estimate anywhere in Sylmar.
Need a straight answer on your windows or doors? Call (661) 523-0347 for a free estimate with a written price before any work starts.
Six Reasons Homeowners Choose Juniper Windows Santa Clarita
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.
Other Juniper Windows Santa Clarita Services
What Neighbors Say About Juniper Windows Santa Clarita
What happens when you call
- 1A real person answersNo phone trees - talk to a local windows & doors pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Sylmar Customers Say
"Door replacement. Installer texted when on his way and finished by lunch. Tight and clean."
- Neil B."Quote came in the app with options for glass. Easy to compare."
- Vera L."Booked the measure appointment online and got a text with the estimator's ETA. Replaced five windows two weeks later. Everything tracked in the app."
- Cora S.