Endura Flap® Pet Doors

Brand History

Patio Pacific was incorporated in 1976 specifically to market a new type of pet door--the 'panel' pet door for sliding glass doors. This new door, the 'Instant' Pet Door, was the first of its kind to offer an adjustable height capability which was desperately needed at the time.

Extreme weather dog door options were few and far between so the company in more recent years went all-in on designing the perfect hot and cold weather dog doors. Patio Pacific has developed the 'Endura Flap®' line of patented insulated dog doors that address the 12 important factors that define pet door excellence. With the Endura Flap®, these high-performance pet doors won the coveted Fancy Publications Editor's Choice Award in 2007 based upon their superior technology.

Now available in designs for sliding glass doors, sash windows, kennels, French doors, and sliding windows. And also in both single-flap and double-flap versions for doors and walls. The single Endura Flap® pet door rivals any double-flap competitor and the double Endura Flap® versions have proven themselves suitable for the very worst Michigan and Canadian winter weather. So if you're looking for the best-insulated dog door you've come to the right place.

Stop drafts like dual-pane glass

An airtight seal is the first defense against the weather. The Endura Flap® has solid magnets along the sides as well as magnets at the bottom of the flap. This complete magnetic seal ensures that there are no gaps along the sides, and fuzzy weather stripping further increases the energy efficiency of the Endura Flap® system.

A single-walled doggy door flap is not satisfactory for the same reason that single-pane glass is not: it is just not sturdy enough to provide maximum insulation.

While single-pane glass is completely replaced these days by the energy-efficient Low-e glass, most pet doors sold on the market today provide no more than a 1/8" thickness of vinyl between the inside of your home and the outside weather.

The Endura Flap® is the best dog door for keeping out hot and cold air, consisting of a sealed unit that is slightly thicker than a dual-pane glass unit and provides comparable insulation qualities with a highly insulated flap.

Heat transfer across an air space in a sealed unit is caused by air currents moving within the space. These currents are caused by the continuous heating and cooling of the air inside the unit. The Endura Flap® doggie entry door is divided by horizontal barriers that serve to reduce the effect of these air currents, thus reducing your energy bill.

A trade-off: We could have filled the flap interior with insulation for better insulation performance. We didn't go for the same reason that dual pane windows aren't filled with insulation: It's better if you and your pet can see through for ease of use.

Remains flexible and sealed even at -40°F

The first design requirement of the Endura Dog Door Flap was that it be flexible. Though the chance of injury such as pinching is small in a rigid flap pet door, it is nonetheless real. Over our 40 years in business, we have encountered injury in all types of rigid flap pet doors. The Endura Flap® dog door flap is soft, flexible, and safe, thereby preventing the risk of pinching or any other rigid pet door related injuries to your pooch.

Vinyl flaps perform poorly and eventually fail in the cold. Every winter, we hear about vinyl flaps in doggy doors that became stiff in the cold, increasing the risk that they may warp or crack. Usually, the vinyl flaps just don't retain enough flexibility to close properly. Sometimes, they get so stiff they break off as the dog attempts to go through. There are low-temperature types of vinyl available that retain more flexibility in cold weather. However, they are softer and less durable and will need flap door replacements more often.

The Endura Flap® is not made from vinyl. For a truly weatherproof, energy-efficient pet door for exterior doors, we've manufactured our pet door flap from a polyolefin-based polymer that remains flexible in temperatures as low as -40℉.

Stays closed against winds up to 50 mph

Arguably the worst sign of a poorly performing pet door is blowing open in the wind. Then it's really leaking a lot of air. This can prove costly when you're trying to keep heat in during the winter or air conditioning in during the summer.

The Endura Flap® pet door has been proven in a wind tunnel to resist blowing open in winds in excess of 50mph. In the same comparison testing, two of the largest selling pet doors on the market blew open at approximately 20 mph.

Adjustable magnet strength

Nearly all customers have been satisfied with the wind resistance of the Endura Flap® energy-efficient dog door right "out of the box." However, magnet kits are available to further increase wind resistance. Each size will accept up to two additional magnet pairs across the bottom of the flap, which increases the magnet strength in the surrounding area by 50% to 300% depending upon the size of the flap. Some users would like the flap to be easier to push open while training. Keep in mind that if your Endura Flap® is functioning as a cat door or a small dog door, extra magnets will likely make the flap too difficult for them to push through. The Endura Flap® design allows for temporary elimination of magnets on the sides as well as across the bottom, making the flap easy to push open for training.

When having the pet door shared by multiple pets of different sizes, some customers remove one of the magnets out of the Endura Flap, so it is easier to push on one side for smaller pets. Removing one magnet doesn't jeopardize the sealing value or wind resistance by a noticeable amount because of the sturdy flap design, and it works out well for smaller pets. Here is a video demonstrating how the Endura Flap® holds up to wind.

Stands up to UV exposure equal to 2 years of Florida sun

U.V. retardant prevents cracking and wrinkling in the sun. The sun's rays are very harsh and will produce a yellowing effect on vinyl flaps. Besides yellowing, vinyl is weakened by prolonged exposure to ultra-violet, which may cause the doggy door flap to warp in size, or harden and 'chip' away. This, in turn, causes the consumer to buy replacement flaps on a frequent basis. In extreme weather, energy efficiency is no problem for the Endura Flap® door - making it the perfect pet door for withstanding the severe Florida heat.

In extreme weather, pet doors can often warp or crack due to sun exposure. The Endura Flap® material is specially treated with a powerful U.V. retardant, and it's not made from vinyl. Intense test chamber exposure equivalent to 2 years of Florida sunlight caused no yellowing or degradation of the Endura Flap® material. At the same time, we tested the Endura Flap® material; we tested vinyl flap samples from every leading pet door manufacturer. In each case, there was significant yellowing, cracking, and degradation of the material.

Heavy-duty aluminum frame for superior durability

The frame of the Endura Flap® is made of high-quality aluminum that will not bend or break even with the toughest dogs using the door all day, every day (a plastic frame will not provide the same durability). You have three color options to choose from so that your pet door installation matches your decor and increases your curb appeal: White, Tan, or Bronze (nearly black).

Secure locking cover for when you're away

The locking cover that is included with every Endura Flap® pet door is as strong as a 1/16th sheet of steel. It cannot be removed from the outside or kicked down. When you want to remove the cover, it is simple to do from inside your home with its spring latch design. It's a simple home improvement solution to turn your pet door into a security door without needing to install an additional pet door lock.

The flap rotates on a rod to prevent tearing & chipping

Anyone who has used any old pet door for any length of time has seen that the cost of replacing the flaps can exceed the original cost of the pet door. Many of these flaps break at the top where the flap flexes as the pets pass through, resulting in extra cost for dog owners constantly needing to purchase replacement flaps.

 Eventually, the repeated flexing causes the vinyl to crack and tear in just the same way that repeated flexing of a coat hanger will cause it to break. The Endura Flap® pet door's design allows it to be flexible and extremely durable at the same time. The flap rotates on a rod located at the top of the flap opening cutout to eliminate the stress from repeated flexing of the flap material.

Made in the USA with a lifetime warranty

Endura Flap® Pet Doors Are 100% Designed, Engineered, and Manufactured in the USA. They are handmade for quality work in San Luis Obispo, California. This weather-resistant pet door offers a variety of different installation options such as a wall mount pet door, door mount pet door, and even a patio door panel for sliding doors. Sizes range from small to extra large to fit every pet, from cats to large dogs. If you experience any issues with your pet door, we are here to work with you to make it right. We will replace any defective parts at no cost to you.

Environmentally Friendly

The Endura Flap® uses a polyolefin-based polymer (similar to the material used in food storage containers), which is a non-toxic material that is recyclable and safe for the environment. Vinyl (also known as PVC) plastic flaps are the most popular in the U.S. today. Every flexible flap pet door currently available in PetSmart, PetCo, or any other mass merchandiser is made of vinyl.

Endura Flap® Pet Door Lifetime Warranty

Endura Flap® pet doors have a lifetime warranty for normal wear & tear and manufacturing defects (dog-chewing is not covered).

Endura Flap FAQs

Which Endura Flap® is best for extreme climates?

The most appropriate Endura Flap® model depends on your installation location. If you are installing in a door or wall, and your pet is not timid, we recommend installing the double flap styles.

How easy is the Endura Flap pet door to install?

It depends on how much of a handyman you are. Some models like the Endura Flap patio panel insert have a tool-free installation process and require no outside door installers. However, for the Endura Flap Pet Door for Doors or Pet Door for Walls, power tools are required, which might require hiring professional door installation services for assistance.

How easy is the Endura Flap to repair? Will I need to hire a home repair company to perform door service whenever it gets damaged?

The flaps on all the pet doors are made to be replaced easily. Unless any damage is excessive, you would not need to hire outside door repair services to fix or clean up the door.

Is there an Endura Flap door for my screen door? What about my garage door?

No. We recommend installing the Endura Flap door on their recommended surfaces. However, you can check out our selection of pet doors for screen doors.