Doggy Doors for Sliding, French and Entry Doors

Name: Krasiva Windows & Doors
Price range: $$$

A pet door built into the glass of a Desert Mountain sliding or French door, or set into a fiberglass entry door, so your dog can come and go while the door still locks and seals.

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Two Ways We Build In a Dog Door

We put dog doors in two kinds of doors. Either way, your dog gets its own way out to the yard, and the door still locks and seals like any other door.

Built into the glass. The pet door is part of the dual-pane glass of a Desert Mountain sliding door or swinging French door. It comes in four sizes and can sit in any lower corner of the door.
Set into a fiberglass door. On a hinged door, like a back door or side door, the pet door goes through the solid lower part of a fiberglass door.

Dog doors come up often when we measure doors around the Valley, and we have several options to choose from.

Doggy door in Desert Mountain sliding door wide angle

Dog Doors in Desert Mountain Sliding Doors and French Doors

Tan Vinyl 2 Panel Desert Mountain Sliding Door with Medium Doggy Door in the glass in Block Home

Every Desert Mountain pet door comes with:

A heavy-duty frame made of high-strength aluminum
Two clear flaps with magnets that pull them closed
High-density weatherstripping around the flaps
A closure panel that slides in and latches when you want the pet door shut. With it in place, a sliding door still opens all the way.

The pet door is ordered with the door, and our own installers, paid by the hour, put it in like any other sliding door replacement.

Dog Doors We've Built Into Sliding and French Doors

White Vinyl Desert Mountain 2 Panel Sliding Door with Grids in the glass and medium doggy door in glass installed in Block Home.

White Vinyl 2 Panel Sliding Door with Large Doggy Door in glass. Stucco Home.

White Desert Mountain 2 Panel Sliding Door with Extra Large Doggy Door in Glass in Stucco Home

Tan Vinyl Desert Mountain 2 Panel Sliding Door with Large Doggy Door in glass in Stucco Home

Tan Vinyl 2 Panel Desert Mountain Sliding Door with Medium Doggy Door in the glass in Block Home

Tan Vinyl 2 Panel Sliding Door with Medium Doggy Door in Glass. Block Home

White Vinyl Desert Mountain 2 Panel Sliding Patio Door in Block Home with doggy door in the glass

Tan Vinyl 2 Panel Desert Mountain Sliding Door with Doggy Door in glass installed in stucco home

Double Vinyl Desert Mountain French Door with 2 Stationary Sidelites and Prairie Style Grids and Doggy Door in Glass in Stucco Home

Dog Doors in Fiberglass Entry Doors

White Therma-Tru Fiberglass Door with Venting Window, Sofa Sidelite and Doggy Door in Block Home

Many Valley homes have a hinged back door, side door or a door off the laundry room, and that’s often the door a dog uses most. For a fiberglass door, you pick the pet door, and we cut the opening in the new door to that pet door’s specifications. These pet doors only work in a flat panel at the bottom of the door, so a door with raised panels or decorative panels down low typically can’t take one.

Fiberglass is a good fit for a pet door. Unlike tempered glass, the solid part of a fiberglass door can take a clean cutout, and the flap’s frame mounts through the door from both sides. The door keeps its own lock and its weatherstripping.

We install the pet door with the new door, so it lines up with the rest of the job. They can be installed in solid doors, half-glass doors, and more.

Dog Doors We've Built Into Fiberglass Entry Doors

White Fiberglass Back Door with 9-Lite Grid Window and Doggy Door in Stucco Home

Fiberglass Hinged Entry Door with Doggy Door (10)

White Fiberglass Double Door with Blinds Between the Glass and Doggy Door in the Stationary Door, Stucco Home

Fiberglass Hinged Entry Door with Doggy Door (12)

White Fiberglass Back Door with 6-Lite Grid Window and Doggy Door in Block Home

Fiberglass Hinged Entry Door with Doggy Door (6)

White Fiberglass Back Door with 6-Lite Grid Window and Doggy Door, Shown Open

Fiberglass Hinged Entry Door with Doggy Door (7)

White Fiberglass Back Door with Venting Window and Doggy Door in Block Home

Fiberglass Hinged Entry Door with Doggy Door (1)

White Fiberglass Back Door with Venting Window and Doggy Door in Block Home

Fiberglass Hinged Entry Door with Doggy Door (3)

White Solid Fiberglass Door with Doggy Door, Seen from Inside the Laundry Room

Fiberglass Hinged Entry Door with Doggy Door (9)

White Solid Fiberglass Door with Modern Lever Handle and Doggy Door in Siding and Block Home

Fiberglass Hinged Entry Door with Doggy Door (5)

White Solid Fiberglass Door with Doggy Door, Shown Open, in Block Home

Fiberglass Hinged Entry Door with Doggy Door (8)

White Fiberglass Back Door with Venting Window and Doggy Door, Seen from the Kitchen

Fiberglass Hinged Entry Door with Doggy Door (2)

White Fiberglass Back Door with Venting Window and Doggy Door in Home with Wood Siding

Fiberglass Hinged Entry Door with Doggy Door (4)

White Therma-Tru Fiberglass Door with Venting Window, Sidelite and Doggy Door in Block Home

Fiberglass Hinged Entry Door with Doggy Door (11)

Built-In Pet Door, Panel Insert, Door Flap or Wall Flap?

There are four common ways to give a dog its own door to the yard. Each one has a trade-off.

Built into the glass. The pet door is part of the dual-pane glass, so the door keeps its full opening, its own lock and its weatherstripping. The catch is that it only comes with a brand new door, but you get to choose the size and placement before the door is ordered.
A panel insert. This is a tall, narrow panel, often found at the big box hardware stores, with a flap at the bottom that stands in the track next to your old slider. It needs no new door, but it takes up part of the opening, and the sliding panel then closes against the insert instead of the frame. The insert also has its own frame and glass, which may not insulate like the rest of the door. Inserts aren’t secure, either. They make the door much easier to break into than a locked slider.
A flap in a hinged door. If the door your dog uses is a hinged door, the pet door can go through the lower part of the door itself. Nothing stands in the opening, and the door still locks like it did.
A wall flap. A pet door can also go through an outside wall, whether it’s block, stucco or wood. Your doors stay just as they are, and the pet door is less noticeable than one in a door. We cut your wall for pet doors when we’re already replacing windows or doors in your home, so it fits right into the same project.

Why the Glass Has to Be Made With the Opening

Building code requires safety glass in doors (Phoenix’s 2024 IRC, section R324.4), and most patio door glass is tempered. Tempered glass is heat-treated to make it much stronger than plain glass.

That strength comes with a rule: tempered glass can’t be cut or drilled. It breaks if anyone tries, so any hole or cutout has to be made before the glass is tempered.

That’s why no one can safely cut a pet door into the slider you have now. A Desert Mountain pet door is built right into the glass at the factory. You get a pet door that is part of the door, not an add-on. A fiberglass door is different: its solid lower part isn’t glass, so a pet door can be set into it.

Picking a Pet Door Size

Desert Mountain pet doors are sized by your pet’s weight. Here are the four sizes and the flap opening for each:

Small: pets up to 15 lbs; opening 4¼” wide by 8¼” tall
Medium: up to 40 lbs; 7¼” by 12¼”
Large: up to 100 lbs; 9¼” by 16¼”
Extra large: up to 200 lbs; 12¾” by 23¾”

Weight only gets you close. Two dogs that weigh the same can be built very differently, so grab a tape measure. Measure your dog across its widest part and from the floor to the top of its shoulders, then compare those numbers to the openings above.
A few more things to think about:

A puppy needs the size it will grow into.
Your dog steps up and over the bottom of the door frame to use the flap. That matters for an older dog with stiff hips.
A bigger flap is a bigger opening for heat and dust, so don’t go larger than your pet needs.

Dust, Heat and Security

Any opening in a door is a way in for dust and heat, and a pet flap is no exception. Here’s what keeps it in check:

The flaps. Two clear flaps with magnets pull shut behind your dog, and high-density weatherstripping seals around them.
The closure panel. On a Desert Mountain pet door, slide it in and latch it from the inside when you go to bed or leave the house, and the flap is blocked off. That way the pet door isn’t an easy way in while no one is watching. It’s also handy when a dust storm rolls in.
The rest of the door. A new door replaces the worn seals and sweeps of an old one, so the whole opening seals tighter than before.

Which Door and Panel Gets the Pet Door

Double Vinyl Desert Mountain French Door with 2 Stationary Sidelites and Prairie Style Grids and Doggy Door in Glass

Desert Mountain swinging French doors can have a pet door built into the glass too. The photo shows a double French door with prairie-style grids and a pet door in the lower corner of one door.

On a sliding door, the pet door can go in either lower corner of the sliding panel or the fixed panel. Our photos show both. In the fixed panel the flap never moves; in the sliding panel it travels with the door when you open it.

On a hinged fiberglass door, the pet door goes low in the middle of the door, below the glass. On a double door, it can go in the door that stays shut most of the time, so the door you walk through keeps its full opening. Our fiberglass photos show one.

When we measure, tell us where your dog heads in the yard and where its bed and water bowl are inside. That helps you pick the corner that suits your dog and your furniture.

Shopping for the door itself? Our sliding doors and entry doors pages cover the styles and materials we install.

Sliding Door with a Doggy Door in the Glass

More Doors We Install

Pet doors built into the glass come only in our Desert Mountain sliding and French doors. Pet doors in hinged doors go into fiberglass entry doors. See the other doors we install.

Dog Door Questions

Answers to common questions about doggy doors in sliding, French and entry doors. Have one we didn’t cover? Call us at (602) 678-3737.

krasiva

Doggy Doors for Sliding, French and Entry Doors

Request a Free Quote

Request a Free Quote

Two Ways We Build In a Dog Door

Dog Doors in Desert Mountain Sliding Doors and French Doors

Dog Doors We've Built Into Sliding and French Doors

Dog Doors in Fiberglass Entry Doors

Dog Doors We've Built Into Fiberglass Entry Doors

Built-In Pet Door, Panel Insert, Door Flap or Wall Flap?

Why the Glass Has to Be Made With the Opening

Picking a Pet Door Size

Dust, Heat and Security

Which Door and Panel Gets the Pet Door

Sliding Door with a Doggy Door in the Glass

More Doors We Install

Entry Doors

Sliding Doors

French Doors

Bi-Folding Doors

Multi-Slide Doors

Dog Door Questions