Existing Fence Conversion System Kit for Cats

Why Purr...fect Fence? For nearly 20 years and with more than 50,000 cats enjoying outdoors safely, Purr...fect Cat Fence is the most popular, effective, and durable cat containment system in the world. Our patented designs ensure that even the craftiest cats can't escape. Purrfect Fence cat enclosures are extremely flexible so they can be installed to an existing fence or wall and used in conjunction with our freestanding kit to enclose unfenced areas. Give your cats the freedom they deserve to enjoy the great outdoors without worrying about their safety! » See Testimonials

Cat Fence Topper for Existing Fences

The Existing Fence Conversion System's revolutionary Cat-Proofer™ extensions make it easy and affordable to convert most any 5' or 6' (or taller) fence or wall into a cat-proof barrier.

The pivoting fence extensions are attached near the top of the inside of your fence and the high strength mesh material is stretched between them attaching with the included zip ties. Simply secure the lower portion of the mesh material to your fence or wall and your cat-proof barrier is complete.

The system will adjust to fit just about every gate and corner situation making it very versatile. Included with each 100' kit are (12) Spring-loaded arms (12) Arm Mounting Plates w/ arm setscrew, 100' of 4' high heavy duty black poly fence (1.75" x 1.75" grid) and (100) zip ties (for 50 ft order increments it will include half of the listed components.) Keep in mind that every fence is different and there are no universally followed guidelines for post spacing, height, materials used,etc. A 50ft kit is designed for the average 50 linear feet of fence. 100 ft kit is designed for an average 100 linear feet of fence. A 200 ft kit is designed for the average 200 linear feet of fence. If you have gates, turns, short or long spans between posts then you may find that you need more or less components than comes with the kit. If in doubt, contact us first!

❗ Have a fence or wall under 5 feet? Use the Conversion System for Shorter Fences to cat-proof fences and walls as short as 3' high!

The system is built to last. All arms are galvanized steel with a black powder coat finish, the arm hardware and springs are stainless steel and the fence material is UV stabilized with carbon black and additional chemical UV inhibitors.

IMPORTANT: The fence mesh is the same 1.75" x 1.75" very strong poly material we use in our Free Standing System. - NOT a flimsy netting.

Accessories are available for, decorative aluminum, wrought iron, and PVC fences as well as walls. 2-Pack of Arms are also available. Please call us 888-280-4066 for custom orders or special needs.
  • Download a Printable Version of the table list here.

    Existing Fence Conversion System 50 Foot Kit 100 Foot Kit 150 Foot Kit 200 Foot Kit 250 Foot Kit 300 Foot Kit 350 Foot Kit 400 Foot Kit 450 Foot Kit 500 Foot Kit 550 Foot Kit 600 Foot Kit
    Spring Loaded Arms 6 12 18 24 30 36 42 48 54 60 66 72
    3 Ring Universal Mounting Brackets 6 12 18 24 30 36 42 48 54 60 66 72
    Set Screws 6 12 18 24 30 36 42 48 54 60 66 72
    4' 600lbs Break Strength Mesh 50 Feet 100 Feet 150 Feet 200 Feet 250 Feet 300 Feet 350 Feet 400 Feet 450 Feet 500 Feet 550 Feet 600 Feet
    UV Rated Ties (bags) 1 1 2 2 3 3 4 4 5 5 6 6
    Arm to Wall/Structure Hardware 2 Sets 2 Sets 2 Sets 2 Sets 4 Sets 4 Sets 4 Sets 4 Sets 4 Sets 4 Sets 4 Sets 4 Sets
    Written Installation Instructions Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

    Download a Printable Version of the table list here.

    *Fasteners for holding hardware to building/home are not included. Fasteners should be chosen based on the type of material covering the building (wood screw, masonry screw, etc.)

    -The above table applies to orders placed after 12/26/19.

  • Items of note when planning your order/layout:

    -Each existing fence is unique! The maximum span between arms is 12-14 feet. 8-10 Feet is preferred. Count and measure the distance between your posts to ensure that a kit will cover your fence.

    -Gates in your fence line require special consideration. Read below for more information on gate planning and installation.

    Installation Instructions
    Chain Link Fence Install Hardware 
    PVC Fence & Walls Install Kit 

    Installation Animation




    Gates need to be considered separately for your layout plan. Each gate in your existing fence is likely to need additional components depending on the location and operation.

    Inward Swinging Gate
    Many inward swinging gates require 1-2 extra arm/bracket(s) per gate. Your situation may vary. If you have questions please contact us.

    Outward Swinging Gate

    Many outward swinging gates require 2-3 extra arm/bracket(s) per gate. Your situation may vary. If you have questions please contact us. 

Customer Reviews

Based on 100 reviews
I was doubtful but Purrfect Fence worked for my Houdini cat!

Here’s a video of my cat before I purchased Purrfect Fence: https://www.facebook.com/1314722278/posts/10216655466241797?sfns=mo

I was so skeptical about the Purrfect Fence working I called and received assurance that if I had proof (video) of my cat escaping from the Purrfect Fence, the company would either help us make it escape proof or give us a refund. So we made the purchase. So glad we bought this Fence!
We have four cats, but Boots is the only escape artist. Since we installed the Purrfect Fence, Boots has not escaped...not even once.

Peace of mind

Last year one of our cats got out of the backyard and was killed by our neighbor’s dogs. Since then we have kept out cats locked inside, but our family was terrified of one getting out and it happening again. Our dogs could no longer use the dog door either because the cats would get out that way. Since we installed this fence topper our pets have been free to come and go into the backyard as they please. None have gotten out and for the first time since our cat passed we have peace of mind.

Purrfect is thre right word!

I have a pride (7 cats!) and I was always worried or trying to find someone. I had tried everything including declawing,which I hated to do. But now even my little Houdini, who figured out every other fence type I had used, has not been out since the fence was installed. I installed it myself - all 300 lineal feet of it - in about five hours. I am 62 and live alone. It was quick and very easy and a Godsend for my peace of mind. My Vet has taken my word for it and recommends it to his pet parents now and will be getting it for his pets also. Great fencing systems!

This systems works SO much better than our last one ! They have the entire backyard to explore !

Our last 'solution" was a barricade made up of dog kennel fence panels connected together and attached to the house then covered with bird netting. It did the trick but, nothing compared to this system ! We love it !! Our 5 cats spend a lot of time outside. We haven't seen them even attempt to jump up or onto the system. Very happy ! Thank you Purr..fect fence !!!!

Works as advertised!

Are purrfect fence has been fantastic and our cats have been outside many of times and have not been able to escape the yard. A very nice product. We also purchased the cat tree and I would recommend putting a cement foundation to support it at full height.

Excellent product. Cats have never breached the fence. We have installed the fence at two differe...

The fence gives us great peace of mind. Our cats are safe when other cats in the neighborhood have gone missing or been hit by cars.

Great fence

Straightforward to put up. The only thing that we thought we’d mention- if you staple the netting closely to each post, the cat can climb up the post, then climb the regular fence- UNDER the netting, and get out! Our cat Maggie is a Houdini and figured out how to do that! Once we figured out how she got out, we stapled the netting close beside each wood post and she hasn’t escaped since.
We now have peace of mind that the cats can roam the netting enclosure, enjoy the outdoors without getting out! Thanks!

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