MaxSeal™ PRO Pet Door for Walls

$255.99 - $997.99
(4 reviews)
Current Stock:

MaxSeal® PRO Pet Door
Best Insulating Dog Door for Walls

Most Secure Pet Door | Durable Hinged Flaps

MaxSeal Pro dog door for door installation

The newly designed MaxSeal® PRO pet door for walls features the newest design and functions available in pet doors today. New features include a metal 1" insulated interior security panel that provides the most security of any pet door when locked. The flaps of the MaxSeal® PRO have a unique aluminum hinged connection that allows for the flap movement to swing more freely as well as eliminating the pinch of the flap when larger dogs use the pet door. This results in your flaps lasting much longer between replacements. The MaxSeal® PRO still offers the best warranty on the market which covers the door and the flaps for up to 6 years from defect. It also has a 1-year replacement option for dogs that chew or destroy flaps. All Security Boss products are hand built to order.

Single Flap versus Dual Flap Information MaxSeal Pro dog door for door installation The MaxSeal® pet door is made with high grade aluminum material that is naturally rust resistant. This door will not only last but will look great throughout the life of the door. The durable piano hinged vinyl flaps are UV treated and weatherized to prevent shrinking, cracking, discoloring and warping. Most flap brands simply do not hold up against harsh environments (direct sunlight, extreme temperatures, overuse, etc). Staggered stainless strike plates are riveted to the sides and base of the flap, connecting to powerful embedded magnets in the aluminum frame, creating an exceptional air seal.

The Best Pet Doors by Design™

The MaxSeal® PRO comes standard with a 10" trim-to-fit solid aluminum tunnel. For larger walls a 16" trim-to-fit tunnel is optional. This solid tunnel design deters moisture issues that can develop in cheaper design products. Indoor / Outdoor carpeting is included with your purchase to line the sides and bottom of the tunnel. We recommend using silicone to adhere the carpet to the tunnel. This will allow you to easily remove the carpet for replacement every few years. Adhesive can make this removal process very difficult.

Note: Existing MaxSeal® Customers can Upgrade their MaxSeal models by purchasing the interior security panel and the hinged replacement flaps for their size of door. Call us if you would like any assistance.

Flap Size
Cut in Door
Exterior Frame
(overall frame size)
(w x h)
Single Flap
Dual Flap
6"x 7 1/2"
8 1/8" x 9 5/16" 9 3/8 x 10 9/16" 255.99 292.99
7"x 9"
9 1/8" x 10 13/16" 10 3/8 x 12 1/16" 297.99 339.99
9" x 12"
11 1/8" x 13 13/16" 12 3/8 x 15 1/16" 357.99 399.99
11" x 16"
13 1/8" x 17 13/16" 14 3/8 x 19 1/16" 420.99 472.99
11" x 20"
13 1/8" x 21 13/16" 14 3/8 x 23 1/16 500.99
Tall Grand
11" x 25"
13 1/8" x 26 13/16" 14 3/8 x 28 1/16" 522.99 615.99
XL Grand
12" x 24"
14 1/8" x 25 13/16" 15 3/8 x 27 1/16" 587.99 665.99
Wide Tall
15" x 20"
17 1/8" x 21 13/16" 18 3/8 x 23 1/16" 641.99 725.99
15" x 24"
17 1/8" x 25 13/16 18 3/8 x 27 1/16 678.99 756.99
15 3/4" x 32"
17 7/8" x 33 13/16" 19 1/8 x 35 1/16" 723.99 823.99



Best Insulating - Ultimate Security pet doors for walls

Security Boss Manufacturing LLC - Best Pet Doors by Design

Pricing starts at: $255.99
Complete pricing chart at bottom of this page

General Use Information: The Insulated Security panel will slide into place and fasten with the dead bolt lock. When removing the Security panel from the unit, apply a slight inward pull to the panel handle while lifting. Since the panel is tight fitting in the channel, this pulling pressure will ensure that the panel rivets do not catch on the frame of the unit.

The dead bolt is retracted by pulling on the handle and turning the handle Clockwise, or Right, approximately a quarter of a turn. To lock the deadbolt, continue to turn the handle of the deadbolt another quarter turn and the lock will extend into the locked position under spring tension. DO NOT TURN THE HANDLE OF THE LOCK COUNTER CLOCK WISE OR LEFT, AS THE LOCK WILL LOOSEN AND NOT WORK.


Replacement rivets have been included with your hardware kit should the ones on the MaxSeal Insulated Security panel work loose. Install by pressing the two pieces together from opposite sides of the panel in the pre-drilled holes. The Thumbscrews that attach the flaps are factory tightened. Through use, the thumbscrews occasionally loosen and therefore should be checked regularly for tightness. Re-tighten the thumbscrews using the included Allen wrench.

The magnets on all MaxSeal doors are adjustable. This allows a precise seal no matter the weather or size of the flap throughout the years. The magnets are positioned in the frame with a pressure fit. The Magnet is held by an aluminum carrier that can slide in and out of the painted frame rail. The best way to lift the magnet is by using pliers to lift the magnet out of the frame rail. BE SURE TO COVER THE MAGNET AND CARRIER WITH A TOWEL TO PREVENT SCRATCHING OF THE FRAME AND CARRIER. Only lift the magnet the minimum required to make the magnet touch the strike plate on the flap. If the Magnet Carrier becomes loose within the frame after adjustment, simply pry the two legs of the magnet apart and reinsert into the frame rail. The magnets are adjusted correctly when there is no airspace between the magnet and the strike plate. Once the magnets are positioned properly, your replacement flaps is installed.

You have now installed your new MaxSeal Door.


Child Safety:
Security Boss Manufacturing, LLC., recommends that households with small children need to exercise proper judgment with leaving their children unattended in any area with a pet door. Pet Doors come with locking panels and locking devices, using these devices minimizes any risk, but does not replace proper parental supervision.


We recommend that any consumer that installs their own pet door wear eye protection and be familiar with the construction procedures and tools of installing a pet door.
Virtually all doors use magnets for the activation of the pet door as well as in the sealing of the flaps. Customers with certain medical devices, for example; Pace Maker patients, should consult their physician.

10 Sizes to fit any Pet
Choose Single or Dual Flap version
Top Insulating, Sealing & Security Door


  • 5
    What a unique and well made product

    Posted by Sun Heste on Dec 22nd 2022

    It seems like the makers thought of everything with this product and I'm very pleased with the quality, looks & function. I was very reluctant to cut a hole in the side of our new home but the product is so well done, so secure, and so useful that it was completely worth it. If I had one small complaint it's that the size that was recommended to me was 2 sizes larger than I bought and than I needed. I certainly understand the danger of spending so much money and not having the dogs fit and it's a custom product that has to be trimmed to be installed. In my case I had an old doggie door from the old house that assured me what they would fit through. The advantage of this (going from the recommended XL to a M for 45-50# lanky dogs) is that the possibility of a large human gaining access to my home through the Pet door is greatly reduced. Would definitely recommend!

  • 5
    Amazing product!

    Posted by BRANDEN HUNT on Jan 31st 2022

    This work perfectly! I absolutely love it!

  • 5
    these doors keep getting better

    Posted by Luc Levensohn on Oct 29th 2021

    I just installed my third pet boss through the wall door. This is the third house my now 10-year-old mutt, Huckleberry, and they've all had the same door setup. The basics from Pet Boss are consistent: quality all around, no junk, including the instructions. The interior sliding secure door is beefier on this one, really well made. The install is straight forward, take your time, and this door will perform, or outperform, your expectations. From Mass. to Maine, in my experience, the Max Seal door is built for New England winters.

  • 5
    Great pet door

    Posted by Chris hammond on Oct 20th 2021

    This is the 3rd house we purchased this door. Great quality