Custom Dog Door Installation
Professional Custom Pet Door Installation through Doors and Walls to Fit Any Dimension
Portal Pros installs custom-made Security Boss pet doors built to fit your exact rough cut, your pet's size, or your available frame space in doors from 1 1/4" to 2" thick and walls from 2" to 16" deep
Request a Free Custom 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.
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.
Most pet doors come in fixed sizes. Custom pet doors are built to whatever dimensions your situation actually requires. If you have a giant breed that exceeds standard sizing, an existing rough cut from a previous pet door that does not match any standard size, or a space-confined opening where only a specific overall frame dimension will fit, a custom-made Security Boss pet door is the right solution. Portal Pros installs custom-fabricated Security Boss pet doors into doors 1 1/4" to 2" thick and walls 2" to 16" deep — built to your exact specifications before the installation visit.
Sized for Your Pet You know your pet's shoulder height and width. We size the custom pet door opening precisely for your dog 2 inches above their shoulder height and at least 2 inches wider than their broadest point, so the door fits them correctly from day one rather than approximating with the closest standard size.
Built to Fill an Existing Rough Cut If a pet door was previously installed in your door or wall, the rough cut opening is already there. Standard replacement pet doors rarely match the exact dimensions of an existing hole. A custom-fabricated unit is built to your exact rough cut dimensions so the new door fills the opening cleanly with no gaps and no patching required around the frame.
Built to Fit a Confined Overall Frame Some installations have hard constraints on total frame size, a wall opening that cannot be enlarged, a door with limited clearance from the floor or edge, or a specific architectural detail that limits how much frame can be exposed. A custom made door is fabricated to whatever overall frame dimensions your space allows, with the pet opening sized as large as possible within those constraints.
Contact Portal Pros at 855-DOG-DOOR with your pet's shoulder height and width, your existing rough cut dimensions if applicable, and photos of your door or wall and we'll provide a same-day quote.
What Is a Custom Pet Door?
A custom pet door is a Security Boss pet door unit fabricated to your exact specified dimensions rather than to a fixed standard size. The outer frame, the tunnel (for wall installations), and the pet opening are all built to your measurements. Security Boss fabricates all custom pet doors to order, every unit is handcrafted specifically for your installation before it ships.
Custom pet doors are available for door mount applications (doors 1 1/4" to 2" thick) and wall mount applications (walls 2" to 16" deep). Both the standard MaxSeal and the top-tier MaxSeal PRO are available in custom configurations, giving you the option of the best insulation, seal, and security regardless of your installation's specific dimensions.
When Do You Need a Custom Pet Door?
Portal Pros recommends a custom pet door for the following situations:
- Giant breeds — Great Danes, Mastiffs, Saint Bernards, Newfoundlands, Irish Wolfhounds, and other breeds whose shoulder height or body width exceeds standard XL sizing; a custom door is built to exactly the opening they need
- Existing rough cuts from prior pet doors — the hole is already in your door or wall; a custom unit fills it precisely without gaps or patchwork around the frame perimeter
- Space-confined openings — limited clearance from the door bottom, edge, or an adjacent structural element that constrains overall frame dimensions
- Replacing an old non-standard pet door — older or off-brand pet doors were often made in proprietary sizes; a custom unit replaces them cleanly into the existing opening
- Odd-sized doors or walls — non-standard door thicknesses or wall depths outside the range of standard tunnel extensions
- HOA or aesthetic requirements — situations where the overall frame must fit within a specific visual or structural boundary defined by the door or wall design
Not sure whether you need a standard or custom door? Contact Portal Pros with your dimensions and a photo and we'll advise you directly.
Why Choose Professional Custom Pet Door Installation?
Measurement verification before fabrication. Custom pet doors are non-returnable once fabricated — the dimensions are built in at the factory. Portal Pros verifies your measurements before the order is placed. For wall installations, your installer measures on-site to confirm the exact rough cut dimensions and wall depth before the custom unit is ordered.
Correct sizing for your specific pet. Sizing a custom pet door correctly requires knowing your pet's actual shoulder height and body width at their broadest point — not an estimate. Portal Pros walks you through the measurement process and confirms the correct pet opening dimensions for your breed before your custom unit is ordered.
Clean installation into existing rough cuts. Installing into an existing rough cut requires careful assessment of the opening's condition, squareness, and any damage or framing issues around the perimeter. Portal Pros installers assess the existing opening and address any issues before setting the new frame so the custom unit seats cleanly and seals correctly.
Full sealing on both sides. Whether going through a door or a wall, every Portal Pros installation is fully sealed against air and moisture infiltration on both interior and exterior faces. For wall installations, the tunnel is properly tipped so moisture drains outward rather than pooling inside the wall.
Craftsmanship guarantee. Every Portal Pros custom pet door installation is backed by our craftsmanship guarantee. If there is ever an issue with our installation work, we make it right.
How the Custom Pet Door Installation Process Works
Step 1 — Measure and Quote Contact Portal Pros with photos of your door or wall, your pet's shoulder height and width, and your existing rough cut dimensions if applicable. We'll confirm whether a custom door is the right solution, advise on the correct product and configuration, and provide a same-day quote.
Step 2 — On-Site Measurement Verification A Portal Pros installer contacts you within 24 to 48 hours to schedule a measurement verification visit. Because custom units are fabricated to your exact specifications and cannot be returned once built, we verify all critical dimensions on-site before the order is placed.
Step 3 — Fabrication Your custom pet door is fabricated to order by Security Boss. Fabrication typically takes two to three weeks. Your installer will contact you to schedule the installation visit once the unit has been delivered.
Step 4 — Professional Installation For door mount installations, your installer cuts or cleans the opening and sets the custom frame with clean faces on both sides, fully sealed. For wall installations, the tunnel is set at the correct angle for outward moisture drainage, framed on both the interior and exterior faces, and fully sealed around the perimeter. The flap and locking security panel are tested before the installer leaves.
Step 5 — Final Test and Walkthrough Your installer tests the full operation of the pet door and security panel, confirms the seal around the frame perimeter, and walks you through care and use. Most custom installations are completed in two to four hours depending on the substrate.
Custom Pet Door Products Portal Pros Installs
All custom pet doors are Security Boss products, handcrafted to order, American-made, and available in the following configurations:
Custom MaxSeal PRO Wall Mount Pet Door — from $372.89 The top-of-the-line custom wall mount. Composite aluminum and HDPE locking security panel, dual vinyl flap insulation, precision weather seal. Built to your exact rough cut dimensions for walls 2" to 16" deep. Indoor/outdoor carpet tunnel lining included. Available in White, Beige, Brown, Silver, and Dark Bronze. For homeowners who want the best performance regardless of non-standard dimensions.
Custom MaxSeal Wall Mount Pet Door — from $299.19 Excellent custom wall mount performance at a mid-range price point. Dual vinyl flap insulation, magnetic seal, locking security panel. Built to your exact rough cut dimensions for walls 2" to 16" deep. Indoor/outdoor carpet tunnel lining included. Available in White, Beige, Brown, Silver, and Dark Bronze.
Custom MaxSeal PRO Door Mount Pet Door — from $310.19 Custom premium door mount built to your exact rough cut or overall frame dimensions for doors 1 1/4" to 2" thick. Dual vinyl flap insulation with a piano hinge flap attachment, magnetic seal, locking security panel constructed of aluminum and insulating materials. Available in White, Beige, Brown, Silver, and Dark Bronze. For replacing existing non-standard door openings or fitting a specific overall frame constraint.
Custom MaxSeal Door Mount Pet Door — from $274.99 Custom door mount built to your exact rough cut or overall frame dimensions for doors 1 1/4" to 2" thick. Dual vinyl flap insulation, magnetic seal, locking security panel. Available in White, Beige, Brown, Silver, and Dark Bronze. For replacing existing non-standard door openings or fitting a specific overall frame constraint.
Custom MaxSeal French Door Dog Door — from $223.15 Custom-fabricated for French door pane replacement. Built to your exact pane dimensions by square inch range. Single or dual flap, UV-treated and weatherized. Available in White, Beige, Brown, Silver, and Dark Bronze. For true French doors with individual glass panes where the pane dimensions do not match a standard product.
Contact Portal Pros at 855-DOG-DOOR for current pricing and to discuss which custom product is right for your specific installation.
Why Portal Pros for Custom Pet Door Installation?
Portal Pros is the nation's leading professional pet door installation company with over 20 years of industry experience.
- Three custom use cases covered — sized for your pet, built to fill an existing rough cut, or built to fit a confined overall frame
- On-site measurement verification before fabrication — we confirm all dimensions in person before your custom unit is ordered
- Door mount and wall mount custom options — doors 1 1/4" to 2" thick, walls 2" to 16" deep
- Two performance tiers — Custom MaxSeal and Custom MaxSeal PRO for every budget
- Giant breed capable — custom sizing accommodates Great Danes, Mastiffs, and all oversized breeds
- 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 Custom Pet Door Installed?
Call 855-DOG-DOOR today or fill out the quote form above. Send us photos of your door or wall, your pet's shoulder height and width, and your existing rough cut dimensions if you have them — and we'll come back to you with the right product, the right dimensions, and a same-day quote.
Custom Dog Door Installation — Frequently Asked Questions
What is the difference between a standard and a custom pet door?
Standard pet doors are made in fixed sizes. Custom pet doors are fabricated to your exact specified dimensions — whether that is your pet's actual shoulder height and body width, the dimensions of an existing rough cut opening, or a specific overall frame size required by your installation space. Every custom Security Boss pet door is handcrafted to order.
What is a rough cut?
A rough cut is the existing hole in your door or wall where a pet door was previously installed or where a new opening has been cut. When ordering a custom pet door to fill a rough cut, the outer frame of the custom unit is built to match your exact rough cut dimensions so it seats cleanly without gaps around the perimeter.
How do I measure for a custom pet door?
For sizing to your pet: measure their shoulder height from the floor to the top of their shoulders. The pet door opening should be approximately 2 inches taller. Measure the widest point of their body and add at least 2 inches for the opening width. For filling an existing rough cut: measure the width and height of the rough cut opening precisely. Contact Portal Pros with your measurements and photos and we'll confirm the right dimensions before anything is ordered.
Can a custom pet door be returned if the dimensions are wrong?
Custom-fabricated pet doors cannot be returned once built, which is why Portal Pros verifies all critical dimensions on-site before the order is placed. Your installer confirms every measurement in person so the fabricated unit is correct before it ships.
What wall depths are compatible with custom wall mount pet doors?
Custom Security Boss wall mount pet doors accommodate walls from 2" to 16" deep. This covers standard 2x4 and 2x6 framed walls, stucco over foam, double-wythe brick, and most residential wall constructions. Contact Portal Pros if you have a wall that exceeds 16" and we'll assess your options.
What door thicknesses are compatible with custom door mount pet doors?
Custom door mount pet doors are compatible with doors from 1 1/4" to 2" thick, covering the full range of standard residential exterior doors including wood, fiberglass, steel, and solid core. If your door falls outside this range, contact Portal Pros and we'll advise on the right approach.
What is the difference between the Custom MaxSeal and Custom MaxSeal PRO?
The Custom MaxSeal features dual vinyl flap insulation, a magnetic seal, and a standard locking security panel. The Custom MaxSeal PRO adds a composite aluminum and HDPE locking security panel for greater strength and impact resistance, along with enhanced weatherproofing throughout. Both are available in all custom dimensions. The PRO is recommended for harsh climates, high-traffic pets, and homeowners who want maximum security and insulation performance.
How long does custom pet door installation take from start to finish?
The total project timeline from first contact to finished installation is typically three to four weeks. This includes a first visit for on-site measurement verification, a fabrication lead time of two to three weeks, and a second visit for installation. The installation itself takes two to four hours depending on the substrate.
Can custom pet doors be installed in any wall material?
Portal Pros installs through wood-framed walls, stucco, brick, block, and other masonry substrates. Wall material affects the tools and techniques required but does not disqualify a wall from a custom installation. Contact Portal Pros with photos of your wall and we'll confirm the approach and any material-specific considerations.
What colors are available for custom pet doors?
All custom Security Boss pet doors are available in White, Beige, Brown, Silver, and Dark Bronze to match most standard exterior door and trim finishes.
Does Portal Pros install custom 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 custom 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 process was seamless, from the initial consultation through the installation of the door. Now if I can just train both dogs to use it.
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.
had a glass dog door installed into my French door, looks seamless and the installers were on time and courteous - great experience overall!
Team did a fantastic job on a very challenging install. Highly recommended
I was worried about how it would look when finished but I couldn’t be happier. David took his time and custom fit the portal and trim perfectly. Both inside and out it looks great and Penny LOVES it!
Had a glass dog door installed in my French door, looks amazing and my dogs started using it immediately - would highly recommend Portal Pros for the go to dog door installer!