The Frontier Windows showroom on Sherman Way, with windows and a patio door mounted in full frames
Canoga Park Showroom

◆ Replacement Windows & Patio Doors

Open the window
before you buy it.

Frontier Windows & Doors replaces windows and patio doors across the west San Fernando Valley, out of a showroom on Sherman Way. The windows are mounted in full frames on the floor, every opening is priced separately, and the crew that installs them works for us.

Yelp rating
4.8
Yelp reviews
500+
Google rating
4.4
Authorized Milgard Dealer◆
Ply Gem◆
Simonton◆
CSLB License #1022448◆
Canoga Park Showroom◆
Our Own Crew, Not a Sub◆
Replacement Windows◆
Patio Doors◆
Entry Doors◆
Retrofit Windows◆
Walk-ins Welcome◆
4.8 on Yelp◆
01 · The Showroom

A Milgard dealer
you can walk into.

Frontier Windows & Doors replaces windows and patio doors across the west San Fernando Valley, out of the same Canoga Park showroom on Sherman Way. We carry Milgard and Ply Gem, and we install both.

What that means in practice: you can open the actual windows before you buy them, we measure and price every opening separately so you can see what each one costs, and the crew that turns up on installation day works for us.

Address
21426 Sherman Way
Canoga Park, CA 91303
Hours
Mon to Fri, 9 to 5
Sat by appointment
Walk-ins
Welcome. No appointment needed.
License
CSLB #1022448
C17 Glazing
A wall of window units in the Canoga Park showroom, showing sliders, single-hung and picture styles side by side
On the showroom floor · Canoga Park
4.8
Yelp rating
500+
Yelp reviews
4.4
Google rating
1
Crew, start to finish
02 · The Work

Windows, patio doors,
entry doors.

Measured at your house, built to those measurements, and installed by our own crew. The number we quote includes putting the window in the wall and taking the old one away.

01Service

Replacement Windows

Milgard and Ply Gem replacement windows, measured by us, built to those measurements, and installed by our own crew. Every opening is priced separately, in writing, so you can see what each window costs.

A replacement window seen from outside the house
  • Retrofit and full-frame
  • Vinyl, fiberglass and aluminum
  • Glass that meets Title 24
02Service

Patio Doors

Sliding and French swinging patio doors, plus multi-panel moving glass walls. If new rollers and a track cap will fix the door you have, we will tell you that instead.

  • Sliding
  • French swinging
  • Moving glass walls
03Service

Entry Doors

Entry door replacement, measured at your house and installed by the same Frontier crew that handles the windows.

  • Door removal
  • Door framing
  • Door installation
04Service

Installation

Our crew, not a sub. Furniture moved and covered, one room at a time, and openings never left open overnight. Old windows and debris leave with us the same day.

  • One day for most houses
  • Permit filed where required
  • Walkthrough and warranty registration

What we install

Milgard · Ply Gem · Simonton

The right line depends on your exposure, your budget, and whether the opening is stucco or wood siding. We will tell you which on the estimate.

A Style Line slider and picture window filling a bedroom wall
V250 · Vinyl · Flush fin

Style Line

The value line. Narrow frames, more glass, and it retrofits over an existing aluminum frame without touching your stucco.

A Tuscany bay window with colonial grids in a sitting room
V400 · Vinyl · Beveled frame

Tuscany

Heavier frame, better hardware, and the shapes and grids most people want on the street-facing side of the house.

Slim black Trinsic frames wrapping a dining room corner
V300 · Vinyl · Slim-line

Trinsic

The thinnest vinyl frame Milgard makes. Pick it when the view matters more than the frame.

A stucco home at dusk with dark fiberglass window frames
C700 · Fiberglass

C700 Series

Fiberglass barely moves in Valley heat, so a dark exterior color will not bow the frame.

A Milgard moving glass wall pocketed fully open onto a covered patio
VX350 · AX450 · AX650 bi-fold

Moving Glass Walls

Multi-panel doors that stack or pocket into the wall. Structural work is usually involved, and we will say so at the first visit.

Slim dark aluminum frames wrapping a corner in a modern bedroom
A250 · Thermally improved

Aluminum Series

The narrowest frame and the longest spans, for mid-century houses where a chunky vinyl frame would look wrong.

03 · The Label

Two numbers on
every sticker.

Every new window ships with a U-Factor and a solar heat gain number printed on a sticker in the corner. Lower is better on both. Ask everyone bidding your job to show you theirs.

What is in the wall nowNFRC
U-Factor
1.20
Solar heat gain
0.75
Typical for clear single-pane aluminum
What we installNFRC
U-Factor
0.25
Solar heat gain
0.20
Trinsic V300, dual pane, SunCoatMAX + argon · VT 0.46

Title 24 is California's energy code. For windows it sets maximum U-Factor and Solar Heat Gain Coefficient values, and the NFRC sticker is what proves the unit complies. We leave those stickers on until you have read them.

NFRC ratings shown are representative and vary by configuration. Your written quote lists the rated values for your specific order.

04 · The Method

Five steps,
in this order.

Estimate to final walkthrough. If your job is going to differ, you will hear it from us before you sign anything.

  1. i.About 60 min

    We measure at your house

    Every opening, inside and out, plus the exposure of each elevation. You get a written price per window, not a whole-house number you cannot take apart.

  2. ii.Same week

    You pick lines and grids

    At the showroom or at your table. Frame color, grid pattern, which openings get tempered glass, obscure glass for bathrooms. Nothing gets ordered until you have seen it.

  3. iii.3 to 5 weeks

    We order, and permit if needed

    Milgard builds to your measurements. We follow building and safety regulations and file a permit where one is required, so you do not have to work out which is which.

  4. iv.One day

    Installation day

    Our crew, not a sub. Furniture moved and covered, one room at a time, openings never left open overnight. Old windows and debris leave with us the same day.

  5. v.Final day

    Walkthrough and registration

    We open and lock every sash with you standing there, hand you the warranty registration, and leave the NFRC stickers on until you have read them.

05 · Reviews

What neighbors say.

“The project manager could have suggested that we get a door installed but instead he was very honest and recommended it might be better to go through a closet company for what we wanted done in our living room. They even gave us ideas on what to do with the open area we have.”
Stan
Homeowner review · frontierwindows.net
“I'm so glad I chose Frontier Windows and Doors for replacing 10 windows and 1 sliding door in my home. John was incredibly professional from start to finish, gave me a very reasonable price and kept in constant contact throughout the process. Each window in my house had its own unique challenge, but they had the experience and knowledge to handle everything smoothly. Not only did they make my windows look amazing, but they were also a pleasure to be around and took the time to educate me along the way.”
Perryiona Gales
Google review
“Frontier installed (9) retrofit windows, (1) large picture window that required construction, and (3) sliding doors at our house. John was super friendly and helpful, as was everyone else we've interacted with there. They were great regarding scheduling, and reliable throughout the process. On install day, they showed up with fully-loaded pickup trucks and around a dozen guys. They were very efficient, professional, and careful/clean. The price seemed competitive and fair. We recommend them without hesitation.”
stephanie lara
Google review

4.8 on Yelp across 500+ reviews · 4.4 on Google

06 · Free Estimate

Free, in your home.
No fee.

We measure, price every opening separately, and leave the written quote with you. Whether you call us back is up to you.

Showroom
21426 Sherman Way
Canoga Park, CA 91303
Hours
Mon to Fri, 9 to 5
Sat by appointment
Financing
0.00% APR for 24 months

On approved credit, for a limited time. Credit and loans provided by Regions Bank, Member FDIC. Minimum loan amounts apply.

Estimate requestFree · In-home · No fee

Rather talk now? Call (818) 478-0074

Where we work
  • Canoga Park
  • Woodland Hills
  • Porter Ranch
  • West Hills
  • Winnetka
  • Chatsworth
  • Northridge
  • Reseda
  • Tarzana
  • Calabasas
  • Granada Hills
  • Encino
  • Simi Valley
  • Moorpark
  • Thousand Oaks
  • Newbury Park
  • Westlake Village
  • Agoura Hills
  • Camarillo
  • Oxnard
  • Ventura