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
Fast, Reliable Window Installation Across Tarzana
If you’re searching for window installation in Tarzana, the short version is this: most single-window replacements in this area run between $800 and $2,400 depending on size, frame material, and glass package, and a whole-home retrofit on a 1950s-to-1970s ranch typically lands between $12,000 and $30,000. Bigger architectural glass work south of Ventura Boulevard, especially floor-to-ceiling mid-century expanses, starts higher because the glass units are larger and the jamb work is precise. We’re Juniper Windows Woodland Hills, part of the Relay Home Co. family since 2001, and we send our own background-checked crews to Tarzana with a written price locked before anything gets ordered. Call (831) 508-3441 and a real person answers, 24/7.
Why Juniper Windows Woodland Hills Is Tarzana’s Preferred Window Installation Company
Tarzana is a block-by-block town when it comes to windows, and we’ve spent enough time walking those blocks to know the difference between what a 1962 ranch north of the Boulevard needs versus what a 1974 mid-century south of Ventura is asking for. Sean Mackey leads our installation team, and his approach on every Tarzana job is the same: write down the price, confirm the glass spec, then build to the frame, not to a catalog guess. Tarzana homeowners regularly tell us the thing they hated most about previous contractors was four-hour arrival windows and a quote that climbed once the crew showed up. That’s the exact thing the Relay Visibility Guarantee eliminates: a live arrival time, photo updates during the install, and a digital invoice. No surprises.
Our crews know the residential streets here, from the older ranch pockets around Vanalden Avenue to the larger-lot properties up toward Reseda and the more custom builds off Corbin. Tarzana has a lot of original single-pane aluminum out there, especially on homes built during the 1950s through 1970s, and we know exactly what happens to those frames after 50 summers of valley heat. If you’re north of the Boulevard in a traditional double-hung, your windows probably need custom sizing because the original framing was never standard to begin with. South of the Boulevard, you’re more likely fighting seal failure on big picture walls. We handle both, with the same fixed-price promise.
Window Installers in Tarzana
Window Installers in Tarzana do more than swap glass, and if your home was built in the 1960s or early 1970s, the installer’s job starts with the opening, not the window. Older Tarzana ranch homes routinely have non-square openings, settled headers, and aluminum frames that have baked in four decades of valley sun. A proper installation here means shimming to a true plane, sealing the rough opening against Santa Ana wind-driven dust, and flashing to keep the rare but real winter rain out of the wall cavity. For a standard single-window retrofit in Tarzana, budget $850 to $2,000 per opening; for larger architectural units or anything requiring structural header work, plan $2,500 and up.
The Warped Aluminum Problem
Many 1950s-70s Tarzana ranch homes have original aluminum-frame sliding windows that warp in the intense San Fernando Valley sun. Tight corners bind, felt tracks shred, and what used to slide smoothly now takes two hands and a hip check. Replacing a warped aluminum slider with a modern vinyl or impact-rated casement in Tarzana usually runs $900 to $2,200 per unit depending on the width of the opening.
When the Job Turns Structural
Some Tarzana window replacements stop being a simple swap the moment we pull the trim. Rotted sill plates from old sprinkler overspray, termite damage in the king studs, and undersized headers from 1960s framing are all common findings on the ranch homes here. When we open a wall and find that, the price does not change quietly behind the scenes. We stop, show you photos, and issue a written change order before another screw turns.
Casement Windows in Tarzana
Casement Windows in Tarzana are workhorses for valley heat, and a surprising number of homeowners discover them only after their old sliders fail. A casement swings open on side hinges and seals against the frame with a compression gasket, which makes it far better at keeping air-conditioned air inside during July and August when Tarzana temperatures climb past 100 degrees. Compared to a slider, a well-installed casement can cut the air infiltration that classic aluminum sliders are notorious for. Expect to pay $950 to $2,400 per casement window in Tarzana installed, with impact-rated PGT units running at the higher end.
Why Casements Win on Older Ranch Homes
Original aluminum sliders on 1960s Tarzana ranches are almost always leaky, even when they still operate. The flat track design was never great, and after decades of thermal cycling the seals are gone. A casement retrofit gives you a fresh, squared opening, new sealing surfaces all around, and a crank or push-out operation that doesn’t rely on a plastic roller track baking in the sun. South of Ventura Boulevard, architects often pair casements with fixed picture windows to keep the mid-century lines clean while getting real insulation.
Impact-Rated Casements for Wind Events
Santa Ana winds produce gusts strong enough to throw branches, roof tile, and patio furniture through unprotected window glass in Tarzana. An impact-rated PGT casement with a laminated glass interlayer holds together even when the pane cracks, so flying debris stays outside. Several Tarzana homeowners have also qualified for the 627.0629 wind mitigation insurance credit on retrofits, which effectively lowers the net cost. We’ll spec the glazing and document the installation so you can submit it to your insurer.
Trusted Brands We Service in Tarzana
We install and service windows from PGT, Therma-Tru, and ViewLux, so Tarzana homeowners aren’t railroaded into a single brand that doesn’t fit the house. PGT is our go-to for impact-rated casements and sliders, especially where wind mitigation credit matters. ViewLux makes tight, modern aluminum lines that work beautifully on mid-century houses south of the Boulevard, and Therma-Tru supplies fiberglass door systems that pair with the same low-E glazing. We keep common hardware and sash parts in our Los Angeles stock, which means fewer return trips and faster fixes when a Tarzana customer has a post-install issue. If the job isn’t done right within 365 days, we make it right. Parts and labor, in writing.
Common Window Installation Problems We See in Tarzana Homes
- Fogged glass from blowout seal failures: On mid-century homes south of Ventura Boulevard, the original double-pane units eventually lose their edge seal, letting moisture in and leaving a permanent haze. Replacing just the glass without fixing the framing drainage leaves you with the same fog two years later. We replace the unit and reglaze the opening as a system.
- Gaps around non-standard double-hungs north of the Boulevard: Many 1950s-70s ranches were framed with rough openings that don’t match today’s stock window sizes. An installer who forces a standard unit into that opening fills the gaps with caulk and calls it done. We custom-size the jamb and sash so the seal is compression-tight, not caulk-tight.
- Spec glass ordered without Miami-Dade or Florida Product Approval: Designer-driven projects in Tarzana often call for large architectural panes that look great on the rendering but stall at the permit counter. We confirm the product approval before ordering so the schedule doesn’t crater.
- Sliding doors bound from sun warp: The same valley sun that warps aluminum window frames also bends old sliding door rails on Tarzana patios. A new 3-panel sliding setup with a proper roller system and thermal break usually runs $4,000 to $8,500 installed, and it changes how the room opens to the yard.
Pricing for Window Installation in Tarzana, CA
Here’s what we tell Tarzana customers before anything is ordered: a single standard window replacement starts around $850 and runs to $2,400 for a well-equipped casement or double-hung in an average opening. A 3-panel sliding window is $4,000 to $8,500. Architectural glass, bays, bows, and mid-century picture walls run $3,000 and up per major unit, and a full-home retrofit on a 1960s ranch typically lands between $12,000 and $30,000 depending on count, glass spec, and whether we’re repairing framing as we go. What moves the number most in Tarzana: opening size, impact glazing choice, non-standard framing repairs, and lead time on designer-specified architectural glass. Every one of those gets written into a fixed line-item price before you approve anything. Call (831) 508-3441 for a free estimate, and we’ll give you the actual number, not a range you can’t rely on.
We Also Serve Cities Near Tarzana
Our Window Installation team runs into Tarzana daily, and we also cover Encino, Reseda, Woodland Hills, and Winnetka for homeowners who want the same fixed written price and the same live arrival tracking. If you’re in Tarzana or right over the city line, the process is the same: call, get a real person, and get a price on paper before the first window is ordered.
Serving Tarzana, CA - Our Local Coverage Area
We’re based in the Tarzana 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 Installation in Tarzana
Lead times set the calendar on high-end Tarzana jobs, not labor. Custom millwork and architectural glass, especially large-format units for mid-century homes south of Ventura Boulevard, routinely run six to twelve weeks from order to delivery, and that clock starts only after the spec is locked. We write the price and product approval details before ordering so the schedule doesn’t stall later at permitting or fabrication. Call (831) 508-3441 and we’ll tell you what’s actually in stock versus what has to be built.
Aluminum expands and contracts with heat, and Tarzana gets more than its share of 100-degree afternoons and wide overnight swings, which slowly twists the thin frames on old ranch sliders until the sashes bind and the felt tracks shred. Once the frame is warped, the window is effectively done, because the only fix is replacement. We replaced a warped original aluminum-frame sliding window on a 1960s ranch home north of Ventura Boulevard with an impact-rated PGT casement, custom-sizing the jamb and sash to match the non-standard framing, and the homeowner’s designer specified a high-SHGC low-E insulated glass unit that later qualified for a wind mitigation credit.
Impact-rated glazing uses a laminated glass interlayer, similar to a car windshield, that keeps the pane intact even if flying debris cracks it, so the window stays in the opening instead of raining glass into your living room. During a Santa Ana event in Tarzana, with wind gusts driving branch and roof-tile debris across the valley, that’s the difference between a broken window and an intact envelope. We install PGT impact-rated units and document the work for insurance credit submission.
Yes, and that’s where the spec matters more than the labor. South of Ventura Boulevard, mid-century homes often have floor-to-ceiling glass lines that depend on slim sightlines and specific frame colors, so we work with ViewLux aluminum lines and designer-selected finishes to match the original aesthetic while upgrading the performance. The original seal failure that fogs those big panes has to be addressed at the frame level, not just by swapping a sealed unit, or the fog returns. Call (831) 508-3441 and we’ll walk through your elevations and the product approval status before you commit.
We custom-size the jamb and sash to match the home’s actual rough opening, because many Tarzana ranches north of Ventura Boulevard were framed with non-standard window openings back in the 1950s through 1970s. Forcing an off-the-shelf double-hung into that opening leaves gaps that leak during Santa Ana wind events, so we measure each opening individually and build to it. A custom-sized double-hung replacement in Tarzana typically runs $1,100 to $2,400 per window depending on the glass and frame spec, and the price is fixed in writing before we order.
Written by Sean Mackey, Owner at Juniper Windows Woodland Hills, serving Tarzana 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.