French Door Dog Door Installation
Professional Pet Door Installation for French Doors
Portal Pros installs pet doors into true French doors with individual glass panes, one pane or multiple panes, depending on your pet's size.
If your French Door features a solid sheet of glass, please view the in-glass dog door options at the link below:
Shop In-Glass Pet Door installation services
Request a Free French Door Dog Door Installation Quote
Fill out the form below and a Portal Pros representative will get back to you promptly. When it comes to dog doors only trust the pros, Portal Pros.
French door dog door installation is one of the most elegant solutions available for homeowners who want pet access without compromising the look of their home. Portal Pros installs custom pet doors directly into the individual glass panes of true French doors, replacing one pane or multiple panes depending on your pet's size, with a custom-fabricated unit built to the exact dimensions of your existing pane. The French door itself stays in place, the hardware stays in place, and the only thing that changes is the specific pane or panes that now house the pet door.
Single Pane Replacement For smaller to medium-sized dogs, Portal Pros replaces one individual glass pane with a custom-fabricated pet door unit built to fit that pane precisely. The rest of the French door stays completely untouched. From a distance, the installation is virtually indistinguishable from the rest of the door.
Multi-Pane Replacement For larger breeds that exceed the dimensions of a single pane, Portal Pros can replace multiple adjacent panes with a single custom-fabricated unit that spans the combined opening. We reach out to confirm all dimensions precisely before fabrication begins.
Contact Portal Pros at 855-DOG-DOOR with photos of your French door and your pet's shoulder height and width, and we'll provide a same-day quote.
What Is a French Door Dog Door Installation?
A French door dog door installation replaces one or more individual glass panes in a true French door with a custom-fabricated pet door unit built to the exact dimensions of that pane. Unlike a standard door mount installation, which cuts through the door panel itself, a French door installation only replaces the glass. The door frame, hardware, hinges, and all other panes remain completely intact.
This approach is possible only on true French doors with individual glass panes, not multi-lite French doors that have a single large glass panel divided by decorative grilles. If you are unsure which type of French door you have, send us a photo and we will assess it directly.
The custom-fabricated pane replacement is built by Security Boss to your exact pane dimensions, with the pet door opening sized precisely for your pet. Glass thickness compatibility runs from 1 1/4 inches to 2 inches. Single and dual-pane options are available, and Low-E coatings are fully supported.
What Types of French Doors Can Have a Pet Door Installed?
Portal Pros installs French door pet doors into the following configurations:
- True French doors with individual glass panes — the ideal configuration; one or more panes replaced with a custom-fabricated pet door unit
- Hinged French doors opening inward or outward — installation approach is the same regardless of swing direction
- Single-pane glass French doors — standard custom fabrication to exact pane dimensions
- Dual-pane insulated French doors — dual-pane replacement maintains full energy efficiency
- Low-E coated French door glass — Low-E compatible fabrication preserves your home's insulation performance
- Stationary French door panels — installation into the fixed panel is fully supported
Send us a photo of your French door and we will confirm the right installation approach for your specific configuration.
Why Choose Professional French Door Pet Door Installation?
Custom fabrication to exact pane dimensions. Every French door pane is a specific size. Security Boss fabricates each replacement unit to your exact measurements after our installer verifies them on-site. There is no standard size and no cutting required on your door — the new pane simply replaces the existing one.
The door itself is never modified. The frame, hardware, hinges, lock, and all remaining panes stay completely intact. The only change to your French door is the replacement of the specific pane or panes that now house the pet door. Everything else is untouched.
Seamless appearance. A correctly installed French door pet door is virtually impossible to distinguish from the rest of the door at a normal viewing distance. The custom-fabricated unit sits flush in the pane opening with clean framing on both the interior and exterior sides.
Full insulation maintained. Dual-pane and Low-E compatible options ensure your home's thermal performance is not compromised by the installation. The replacement pane meets or matches the insulating performance of the original glass.
Sized for any breed. Because the pet door unit is custom-fabricated, sizing is not limited to standard dimensions. If your pet requires a larger opening than a single pane can accommodate, multiple panes can be replaced with a single spanning unit sized precisely for your dog.
Craftsmanship guarantee. Every Portal Pros French door installation is backed by our craftsmanship guarantee. If there is ever an issue with our installation work, we make it right.
How the French Door Pet Door Installation Process Works
Step 1 — Measure and Quote Contact Portal Pros with photos of your French door from inside and outside, your pet's shoulder height and width, and the approximate pane dimensions if you have them. We will confirm the installation approach and provide a same-day quote.
Step 2 — On-Site Measurement Verification Once you order, a Portal Pros installer contacts you within 24 to 48 hours to schedule a first visit for precise measurement verification. Because every replacement unit is custom-fabricated to your exact pane dimensions, we verify measurements on-site before fabrication is ordered.
Step 3 — Fabrication Your custom replacement pane unit is fabricated to order by Security Boss. Fabrication typically takes two to three business days. Your installer will contact you to schedule the installation visit once the unit is delivered.
Step 4 — Professional Installation A Portal Pros installer removes the existing pane from your French door and sets the custom fabricated replacement dog door into the pane opening. Both sides are finished cleanly. The pet door is sealed, tested, and the locking panel is demonstrated.
Step 5 — Final Test and Walkthrough Your installer tests the flap operation, confirms the seal around the pane perimeter, demonstrates the locking security panel, and walks you through care and use before leaving.
French Door Pet Door Products Portal Pros Installs
Portal Pros installs all pet doors on the market into French doors. The following Security Boss products are specifically designed and sold for French door applications.
Custom MaxSeal French Door Dog Door — from $223.15 The purpose-built Security Boss solution for true French doors with individual glass panes. Custom-fabricated to your exact pane dimensions by square inch range. Composite construction with a secure locking pin mechanism, UV-treated and weatherized flap options, single or dual flap configuration. Available in White, Beige, Brown, Silver, and Dark Bronze. Compatible with glass 1 1/4 to 2 inches thick. The recommended product for standard French door pane replacement.
MaxSeal PRO In-Glass Dog Door — from $241.99 For larger pets or multi-pane replacement configurations where the PRO-level performance is the priority. Aluminum-clad locking panel, dual vinyl flap with piano hinge, precision weather seal. Available in White, Beige, Brown, and Silver. Compatible with single and dual-pane glass including Low-E. Lifetime manufacturer warranty.
Contact Portal Pros at 855-DOG-DOOR for current pricing and product recommendations for your specific French door configuration.
Why Portal Pros for French Door Pet Door Installation?
Portal Pros is the nation's leading professional pet door installation company with over 20 years of industry experience.
- Custom fabrication to exact pane dimensions — every replacement unit is built to fit your specific French door pane, not cut to fit
- Single and multi-pane replacement — one pane for smaller breeds, multiple spanning panes for larger breeds
- Door frame and hardware stay completely intact — only the specific pane is replaced, everything else is untouched
- Dual-pane and Low-E compatible — full insulation performance maintained
- Licensed, bonded and insured installers nationwide
- 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 door products, always
- Giving back — a portion of every sale is donated to no-kill animal shelters across the United States
Ready to Get Your French Door Pet Door Installed?
Call 855-DOG-DOOR today or fill out the quote form above. Send us photos of your French door from inside and outside along with your pet's shoulder height and width, and we'll come back to you with the right product, the right size, and a same-day quote.
French Door Pet Door Installation — Frequently Asked Questions
What is a French door pet door installation?
A French door pet door installation replaces one or more individual glass panes in a true French door with a custom-fabricated pet door unit built to the exact dimensions of that pane. The door frame, hardware, and all remaining panes stay completely intact. Only the specific pane or panes housing the pet door are replaced.
Does my French door need to have individual glass panes?
Yes. This installation method is designed specifically for true French doors with individual glass panes. Multi-lite French doors that have a single large glass panel with decorative grilles on the surface are not compatible with pane replacement. Send us a photo and we will confirm whether your door qualifies.
Will installing a pet door damage my French door?
No. The French door frame, hardware, hinges, and lock are never modified. The only change is the replacement of the specific pane or panes that now contain the pet door. The replacement unit is custom-fabricated to sit flush in the existing pane opening.
What if my pet is too large to fit through a single pane?
Portal Pros can replace multiple adjacent panes with a single custom-fabricated unit that spans the combined opening. The unit is sized precisely for your pet and built to your exact combined pane dimensions. Contact us with your pet's shoulder height and width and we'll confirm the right configuration.
What French Door thickness is compatible?
French door pane replacement is compatible with French Door frames from 1 1/4 inches to 2 inches thick, including single-pane and dual-pane insulated glass, as well as Low-E coated glass. Your home's insulation performance is maintained with a compatible replacement unit.
Will the installation affect my home's insulation?
No. Portal Pros fabricates replacement units in both single and dual-pane configurations including Low-E compatibility. Your home's energy efficiency is fully maintained regardless of which product is used.
How long does French door pet door installation take?
The installation itself typically takes one to two hours on the day of install. However, because every replacement unit is custom-fabricated to your exact pane dimensions, there is a fabrication lead time of two to three days from measurement verification to delivery. Total project time from first contact to finished installation is typically one week.
How many visits does the installation require?
French door installations typically require two visits. The first visit is for precise on-site measurement verification before the custom unit is fabricated. The second visit is the installation itself once the fabricated unit has been delivered.
What size pet door do I need?
Measure your pet's shoulder height from the floor to the top of their shoulders and add 1 to 2 inches. Measure the widest point of their body and add at least 2 inches. Contact Portal Pros with these measurements and photos of your French door panes and we will confirm whether a single pane or multi-pane replacement is needed.
Is the pet door lockable?
Yes. Every pet door product Portal Pros installs includes a locking security panel. Electronic options with collar-sensor or microchip-based selective entry are also available for maximum control over which pets can use the door.
Does Portal Pros install French door pet doors nationwide?
Yes. Portal Pros operates a nationwide network of licensed, bonded, and/or insured installers. A professional in your area will contact you within 24 to 48 hours of placing an order.
Does Portal Pros offer free shipping on French door pet doors?
Yes. Portal Pros offers free shipping to the contiguous 48 states on every order, always, no minimums, no exceptions.
Does Portal Pros donate to animal shelters?
Yes. A portion of every Portal Pros sale is donated to no-kill animal shelters across the United States. Our mission goes beyond installing pet doors. It's about opening doors to a better life for animals in need.
Let customers speak for us
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!
easy to install and cats started using it immediately, would use them again
Sturdy door with strong and easy to use security panel. A large, freewheeling outdoor cat adopted me a few months ago and he wasn't adjusting to life as an indoor cat. I got him this door and after showing him how it worked, he came in from outside through it the 1st day and was able to go in and out by the second. Happy cat.
I was beyond impressed with the level of customer service from Bryan. I had attempted contact with another company seeking assistance on where to place a dog door that made the most sense- but I was matched with a bot thatwas clearly giving me template answers. That was not so with Portal Pros. Bryan was incredibly helpful and attentive with a customized solution. Installation was excellent, and the install team was professional and great with our dogs.
I had a glass dog door installed in my backyard entrance cant be happier with there work really professional!
I love my door! They were most affordable out of everyone I quoted and the door is high quality. Would recommend.
I had a portal pros install a doggie door at my home. They had to go through a 10 inch wall through natural stone, which took a long time but did an excellent job. I would recommend Portal pros doggie doors to anyone. Brian the sales rep was very knowledgeable & was David the installer that did an excellent job.
Ordered a doggie door to go into the wall. They were very helpful in determining the size of door for our dog when placing the order. They were also great in figuring out the height placement when installed.
It fits in well and our dog got used to it in a couple of tries.
The installation was done professionally. Would recommend to anyone looking to getting a door installed.
Bryan and his team of installers were very professional, responsive and reliable. Bryan followed up on my questions and addressed efficiently several points that I raised.
Had a wall-mounted dog door installed and it turned out amazing! Our Golden absolutely loves it, and we love that she can now go in and out whenever she wants.