MaxSeal Flaps

$33.00 - $190.00
(15 reviews)
Current Stock:

MaxSeal Replacement Flaps

Replacement Flaps For MaxSeal Pet Doors

Insulating Flaps to Replace YOur Old MaxSeal Flaps

MaxSeal flaps are specific to size as well as their location of interior or exterior on your pet door. A interior flap will not line up correctly with the magnets of the exterior frame and vice versa. The magnet placement of both the interior and exterior of your pet door are designed to provide you with an optimum seal. Altering the placement of these magnet positions will affect the performance of your door. All Security Boss products are hand built to order.

Replacing your MaxSeal flaps is easy and can be done without removing the pet door frames. Thumbscrews located at the top of the flap can be loosened by hand or by Allen wrench (Provided in your hardware packet when you purchased the door). If you have any difficulty you can place a Flathead screwdriver behind the flap and apply some pressure to allow thumbscrews to catch.

*Note: Thumbscrews & Allen wrench are included with flap purchase


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MaxSeal Flaps

Security Boss Manufacturing LLC


  • 5

    Posted by Brian Phillips on Nov 24th 2022

    Perfect replacement!

  • 5
    The best pet door

    Posted by Rinat K on Oct 10th 2022

    We had the Security Boss pet door for more than 10 years and this is the 2nd time Im replacing flaps (once every 5 years or so) but this door is solid, secure, weatherproof everything we are looking for

  • 5
    Replacement dog door flaps

    Posted by Daniel on Aug 13th 2022

    Robust design with simple directions for installation. Have always been happy with Boss.

  • 5
    Dog door panel replacement

    Posted by Abby on Feb 6th 2022

    Excellent service and look great!

  • 5
    max seal flaps

    Posted by kathy goldberg on Dec 19th 2021

    first off, we had a security boss pet door installed in our sliding glass door 6 years ago and while it was an investment because good things are worth paying for, it wasn't until just now that we needed/wanted to replace the outer flap. We replaced it more because of atheistics, it is of course out facing the elements for the past 6 years, it had not worn out.. this system works all day every day as my dogs come and go. The large thick magnets mean it catches and shuts every single time! can't recommend this doggie door more.

  • 5
    Great fit

    Posted by Unknown on Dec 13th 2021

    As described

  • 5

    Posted by Amy on Nov 11th 2021

    Very Durable Product. Little difficult changing out the old door flaps though. The binding posts kept turning with the screws. Had to cut off the old flap to get to the posts, hold them still while I used the Allen wrench to loosen the screws. Tough, took some time to complete the job. But worth it in the end.

  • 4
    Maxseal Flap replacement

    Posted by Patricia Rubeck on Oct 22nd 2021

    The flaps fit perfectly but the installation is very difficult due to the design. It would be a little easier if the thumb screws were offset from each other in each flap. Also if the rivets were pre-installed into the flap it would be easer because they have to be held tight or else they spin when trying to screw in the thumb screws.

  • 5
    Best price you can find for this special product.

    Posted by Mary Ann Sutter on Aug 29th 2021

    Have two big dogs that go in and out all day long. They wear out the flap about every four years. It gets harder to replace but we finally found this one. It is relatively easy to install. I highly recommend this dog door.