Glass Dog Door Installation
Professional In-Glass Pet Door Installation Services
Prefer to write? Request your free quote below or see dog door installation pricing.
Licensed and/or insured installers nationwide. Same-day quotes on most projects.
Full Door ReplacementNew Fiberglass or Stainless Steel Door (Reuses Existing Hardware) with optional mini blinds
Full Glass ReplacementNew Custom Glass Glazed with Corner Notch for Pet Door Installation (Single or Dual Pane Low-E) Optional Tint
Individual Pane ReplacementCustom Made Dog Door to Replace a Pane or Multiple Panes of Glass (for Larger Dogs Requiring Larger Pet Door)
Notched Glass Lowered into FooterCustom Glass with Bottom Notch; Pet Door Sits Half in the Glass and Half in the Door Footer
Request a Free Glass Dog Door Installation Quote
Fill out the form below and a Portal Pros representative will get back to you promptly.
Give your pet the freedom they deserve without sacrificing the look or function of your home. Portal Pros offers four professional glass dog door installation methods — and we'll help you choose the right one for your specific door and lifestyle.
Full Door Replacement with Built-In Pet Door
We replace your existing glass door entirely with a brand new door that has the pet door built in from the factory. Choose from clear glass, glass with partitions, or glass with integrated mini blinds for privacy. Your existing door hardware is reused, keeping the project clean and cost-effective.
Custom Notched Glass Replacement
We remove your existing glass panel and replace it with a custom-fabricated tempered glass piece that has the pet door notched directly into it. You keep the full glass look — maximum light, unobstructed view — with a seamless, factory-finished result that looks like it was always there.
Individual Pane Replacement (True French Doors)
If you have a true French door with individual glass panes, we replace a single pane with a custom-fabricated piece that has the pet door built in. No full door replacement needed — just a precise, clean swap of the specific pane.
Notched Glass Lowered into Footer
We replace your glass with a custom-fabricated tempered panel that has a notch along the bottom edge, then set the pet door so it sits half in the glass and half in the footer of the door. The lower position gives small dogs, cats, and older pets an easier step-over while keeping nearly all of your glass. Because the footer is cut to fit the pet door, this option is a permanent change to the door.
Not Sure Which Option is Right for Your Door?
Send us a Photo and We'll Recommend the Best Approach for Your Setup
Which Options Are Reversible?
Some glass pet door installations can be undone later and some change the door for good. If you rent, plan to sell, or simply want the choice of going back, here is how each option compares.
Reversible: Can Be Undone Later
Reversible
Full Door (Slab) Replacement
Your original door comes out in one piece and the new door with the built-in pet door takes its place on the same hardware. Store the original and it can go back in whenever you like, which is why a pre-installed pet door slab is the first choice for renters and for anyone planning to sell.
Reversible
Notched Glass Replacement
Only the glass changes and the door itself is never cut. To go back, the notched panel is swapped for a standard glass panel of the same size and the door looks the way it did before.
Reversible
Single-Pane French Door Replacement
One pane comes out and a pet door panel made to the same size goes in its place. The dividers between the panes and the rest of the door are untouched, so a matching pane of glass can be put back at any time.
Irreversible: Permanent Changes to the Door
Irreversible
Multiple-Pane French Door Replacement
Larger dogs need an opening bigger than a single pane, so the dividers between two or more panes are cut out to make room for the pet door. Those dividers are part of the door and cannot be put back, so undoing this option means replacing the door.
Irreversible
Notched Glass Lowered into Footer
To set the pet door lower, the footer of the door is cut so the pet door can sit half in the glass and half in the footer. New glass can be fitted later, but the cut in the footer is permanent, so returning to the original look means replacing the door.
Renting, or not sure you want a permanent change? Choose one of the reversible options and keep the original door, glass panel, or pane somewhere safe so it can be put back when you move. Request a free quote and we will confirm which options fit your door.
What Is a Glass Dog Door Installation?
A glass dog door installation — also called an in-glass dog door or through-glass pet door — is a professional installation method that integrates a pet door directly into your existing glass door system. Unlike wall mount or door mount installations, there is no cutting through walls, no modifying door frames, and no bulky add-on panels sitting in your track.
Depending on your door type, Portal Pros will recommend one of four approaches: a full door replacement with a factory-built pet door, a custom notched glass panel that preserves your full view, a notched panel lowered into the door footer for a lower step-over, or a single pane swap for true French doors with individual glass panes. Every method results in a clean, professional finish that looks completely intentional — because it is.
What Types of Glass Doors Can Have a Dog Door Installed?
Portal Pros installs glass dog doors into panels from ¼" to 1½" thick, including:
Sliding glass patio doors
full door replacement or custom notched glass, depending on your preference
Fixed glass panels
custom notched glass replacement for a seamless look
True French doors with individual panes
single pane replacement, no full door swap needed
Multi-lite French doors
custom approach based on your specific configuration
Single-pane glass
standard residential glass panels
Dual-pane insulated glass (IGU)
energy efficiency fully maintained with custom fabrication
Low-E coated glass
Low-E compatibility preserved throughout the process
Not sure what type of glass you have? Send us a photo and we'll identify it and recommend the right installation method.
Which Glass Dog Door Installation Method Is Right for You?
Every home is different. Here's how to think about which approach fits your situation:
Choose full door replacement if:
You want the option of partitions, mini blinds, or a specific glass style. Your existing door is older and due for an upgrade anyway. You want the pet door integrated at the factory level for the cleanest possible result. Your existing hardware is in good condition and can be reused.
Choose custom notched glass replacement if:
You love your current door and want to keep it exactly as-is. Maximum light and an unobstructed view are important to you. You want the most seamless possible appearance — a custom notched glass panel is virtually indistinguishable from a factory installation.
Choose individual pane replacement if:
You have a true French door with separate individual glass panes. You want the least invasive option — only the specific pane housing the pet door is replaced, everything else stays exactly as it is.
Still not sure? Call 855-DOG-DOOR or send us a photo of your door and we'll tell you exactly which option we'd recommend for your setup.
Why Choose In-Glass Dog Door Installation?
In-glass installation is the gold standard for pet door placement for homeowners who want zero compromise on aesthetics.
Seamless appearance.
Whether you go with a full door replacement, custom notched glass, or a single pane swap — the finished result looks completely intentional. No bulky frames, no patio inserts taking up track space, no afterthought appearance.
Superior insulation.
Custom dual-pane glass options maintain your home's thermal envelope. Tight factory seals mean no drafts, no air leaks, and no energy loss.
Maximum security.
Every in-glass dog door Portal Pros installs includes an industrial-grade security panel that locks from the inside, giving you full control over when your pet can and cannot use the door.
No wall damage.
Unlike wall mount installations, glass installs require no cutting through drywall, insulation, or siding. Your home's structure stays completely intact.
Privacy options.
With a full door replacement, you can choose integrated mini blinds or partitioned glass — giving you privacy control alongside pet access that no other installation method offers.
Works for all breeds.
Portal Pros carries in-glass dog doors sized from XS through XXL — including giant breed options for Great Danes, Mastiffs, Saint Bernards, and Newfoundlands.
How the Glass Dog Door Installation Process Works
Measure & Quote
Contact Portal Pros with your pet's shoulder height and width, and photos of the glass door or panel you'd like the dog door installed into along with either the door or glass dimensions. We'll identify your door type, recommend the right installation method, and provide a same-day quote.
Fabrication
Depending on the method chosen, your replacement glass panel or full door unit is custom fabricated to the exact specifications of your existing opening — with the pet door built directly in. Single or dual-pane, Low-E compatible, sized precisely for your pet. Once you order we send our installers out to verify all dimensions precisely.
Professional Installation
An authorized and insured Portal Pros technician arrives to install the pet door and glass or full door. For full door replacements, your existing hardware is transferred to the new door. For notched glass or pane replacements, the existing frame stays in place — only the glass is swapped. Everything is sealed, aligned, and tested.
Final Test & Walkthrough
Your installer tests the door operation, confirms the seal, and walks you through the locking mechanism. Most customers describe the finished result as completely indistinguishable from a factory installation.
Glass Dog Door Products Portal Pros Installs
Portal Pros installs exclusively Security Boss pet doors — American-made, industry-leading products backed by a lifetime manufacturer warranty.
MaxSeal PRO In-Glass Dog Door
from $241.99 The top-of-the-line in-glass option. Dual-flap insulation, magnetic seal, and industrial security panel. Available in White, Beige, Brown, and Silver. Best-in-class for energy efficiency and security. Compatible with all three installation methods, but the custom MaxSeal is recommended for true French doors with individual panes of glass, so the door can be custom made to fit that hole precisely.
MaxSeal In-Glass Dog Door
from $240.89 All the performance of the MaxSeal PRO in a streamlined package. Excellent insulation and a clean, low-profile appearance.
SB Standard In-Glass Pet Door
from $202.40 A reliable, well-priced option for homeowners looking for solid performance. Available in White and Dark Bronze.
How Much Does Glass Dog Door Installation Cost?
Glass dog door installation pricing depends on the installation method, the type and size of your glass panel, the pet door size needed, and the specific product selected. Because every in-glass installation involves custom fabrication — whether that's a full door, a notched glass panel, or a single pane — Portal Pros provides personalized quotes rather than a flat rate.
Factors that affect pricing:
- Installation method (full door replacement vs. notched glass vs. pane replacement)
- Single-pane vs. dual-pane glass
- Glass panel dimensions
- Pet door size (XS through XXL)
- Product selection (standard vs. PRO vs. electronic)
- Optional features such as mini blinds or partitioned glass
To get an accurate quote, contact Portal Pros at 855-DOG-DOOR or fill out the quote request form below. Most customers receive a quote the same day.
Glass Dog Door Installation — Frequently Asked Questions
What's the difference between a full door replacement and a notched glass replacement?
A full door replacement swaps your entire glass door with a new factory unit that has the pet door built in — with options for clear glass, partitions, or mini blinds. A notched glass replacement keeps your existing door frame and hardware exactly as-is, replacing only the glass panel with a custom piece that has the pet door built in. The notched glass method preserves your maximum light and view with no visible change to the door itself.
Can a dog door be installed in any sliding glass door?
In most cases, yes. Portal Pros can install glass dog doors in the vast majority of standard residential sliding glass patio doors using either the full door replacement or custom notched glass method. Our installers confirm compatibility during the quoting process.
Can a dog door be installed in a French door?
Yes. For true French doors with individual glass panes, Portal Pros replaces a single pane with a custom-fabricated piece containing the pet door. For multi-lite French doors, the approach varies based on your specific configuration. Send us a photo and we'll assess your door directly.
Will replacing the glass affect my home's insulation?
No. Portal Pros fabricates all replacement glass in single or dual-pane configurations, including Low-E glass options. Your home's insulation and energy efficiency are fully maintained regardless of which installation method you choose.
Can I get mini blinds in my replacement glass door?
Yes — but only with the full door replacement option. If you choose a custom notched glass panel or a single pane replacement, the glass itself does not include blinds. Full door replacement units are available with integrated mini blinds, clear glass, or partitioned glass depending on your preference.
How long does glass dog door installation take?
Most in-glass installations are completed in a single visit. The glass or door unit is custom fabricated in advance, so your installer arrives ready to complete the swap. On-site installation typically takes one to three hours depending on the method.
Can I install an in-glass dog door myself?
In-glass installation is not a DIY project. It requires custom glass fabrication, proper glazing techniques, and precise sealing to prevent air and water infiltration. Improper installation can result in cracked glass, failed seals, or voided warranties. Professional installation by a licensed Portal Pros technician is always recommended.
What if my glass panel is an unusual size?
Not a problem. Every replacement glass panel Portal Pros orders is custom fabricated to your exact dimensions. There is no standard size requirement — we work with what you have.
Is the pet door lockable?
Yes. Every in-glass dog door Portal Pros carries includes a locking security panel. Electronic options with collar-sensor or microchip-based selective entry are also available for maximum security.
What size dog door do I need?
Measure your dog's shoulder height from the floor to the top of their shoulders and add 1–2 inches. Measure their widest point — chest or hips — and add at least 2 inches. Portal Pros carries sizes from XS through XXL. If you're between sizes, always size up. Contact us if you need help sizing for a giant breed.
Do you install glass dog doors nationwide?
Yes. Portal Pros operates a nationwide network of licensed, bonded, and insured installers. A professional in your area will contact you within 24–48 hours of placing an order.
Why Portal Pros for Glass Dog Door Installation?
Portal Pros is the nation's leading professional pet door installation company with over 20 years of industry experience.
Three installation methods
full door replacement, custom notched glass, or individual pane swap — so the right solution exists for every home
Licensed, bonded & insured installers
nationwide
Security Boss exclusive partner
we install the best American-made pet doors in the industry
Craftsmanship guarantee
if there's ever an issue with our installation, we make it right
1,100+ five-star reviews
from homeowners across the country
Free shipping
on all pet doors, always
Giving back
a portion of every sale is donated to no-kill animal shelters across the United States
Ready to Get Your Glass Dog Door Installed?
Call 855-DOG-DOOR today or request a free quote below. Send us a photo of your door and your pet's measurements and we'll come back to you with the right installation method, the right product, and a same-day quote.
Preferred Brands for Glass Dog Door Installation
🛡️ Security Boss Pet Doors
Security Boss builds the MaxSeal and MaxSeal PRO pet doors we install most. Insulated flaps, magnetic weather seals, and locking security panels, in sizes for cats through giant breed dogs.
🚪 PlexiDor Dog Doors
PlexiDor dog doors replace the flap with saloon-style panels of shatter-resistant K9 Composite in a heavy-duty aluminum frame. Made in the USA since 1985 for dogs up to 220 lbs. We carry every series, including the RFID electronic dog door and storm-rated HURCAN models.
📱 Pawport Smart Pet Doors
Portal Pros is a certified Pawport installer. The motorized steel and aluminum door stays locked with dual deadbolts until your pet's Smart Pet Tag is in range, with app control and Alexa, Google Home, and Siri support.
🏅 Hale Pet Doors
Hale Pet Door has built premium pet doors in America since 1985. Choose from door, wall, screen, in-glass, and kennel models, plus custom sizing for openings that standard pet doors do not fit.
Let customers speak for us
Awesome service! Yeah, the process was long (custom door glass measurements/creation/installation, but they set the right expectation and delivered as promised! Great work and attitude! Would definitely use them again.
My three dogs absolutely love having their freedom back! Thank you Bryan for your assistance with helping me pick out the perfect door and scheduling our install! Wall installation looks great and Anthony did a fabulous job!
Doggie door installed! It was such a pleasure working with them. They kept me informed through the entire process and showed up exactly when they said they would and my door looks amazing. I have French doors made of glass so it wasn’t an easy job but they made it look effortless.
Heavy Duty Aluminum frame and it looks great, professionally installed into my screen lanai
Communication with Portal Pros couldn't have been easier. The installation in the wall is flawless we are very satisfied.
Very pleased with Portal PROS. They installed a quality dog door on target 🎯 and on time at the price they quoted. Highly recommend them. Excellent customer service. Dogs love it too. Thanks
Loved the door and the installation was great!
We have just moved to OKC area from Las Vegas, NV and knew we needed a strong dog door to hold up to the weather here, and although my husband can do most anything, cutting a significant hole through brick, next to an electrical outlet, was NOT something I wanted him to do. When I found the Portal Pros website and sent a request for a quote.
Jason called a few days later and although the installation and door we chose was pricey, IT WAS WORTH EVERY PENNY. (Jason gave us a little bit of a discount.) The dog door was shipped to my house and holy cow, this dog door was the strongest, heaviest door I have EVER seen! (Security Boss - MaxSeal™ PRO Pet Door for Walls). So impressed.
The installer, David from Mr. Handyman in North OKC, was on-time, professional, and executed a PERFECT installation through the brick wall of my home. The dog door is perfectly aligned, centered, and I don't have a single negative thing to say. Look how perfectly centered the interior frame is! Baseboard -> door frame -> outlet! WOW! (See photos) He even cleaned up every scrap and dust particle, inside and out. Although David said he has installed MANY dog doors, he had never installed one of these. Even he was impressed with the weight and quality of this door. Out of 5 stars, David gets 10!
All-in-all, Jason's communication before, during, and after the install was appreciated and noted. I am grateful for his updates and check-ins.
Thank you, Jason and David for a seamless and perfect experience.
I couldn’t be happier with the experience. Installing a dog door was much more affordable than replacing the entire door, and the finished result looks great. The whole process was seamless from start to finish—the installer was professional, worked quickly, and the installation was completed without any issues.
It was easy to order and schedule, once you understand how it works. First, you order the doggie door, based on the size of your dog and what type of door it is being installed in. Then the new doggie door is delivered by UPS. Once it arrives safely, installation can be scheduled. This is a quality door and reliable vendor. The end result was very professional and it works like a charm!
The door quality was excellent. Our dog is happy and making us nuts going in, and out, in and out! 🐾
I highly recommend BHC contracting. They were very professional and installation of our first doggie door went smoothly.
The process was seamless, from the initial consultation through the installation of the door. Now if I can just train both dogs to use it.
Portal Pros did a great job installing our dog door through a stone wall!