Wonder How To Get Rid Of Mice? Rodents, Chipmunks, & Squirrels Stay Out Of Your Attic With Kritter Caps®

Are you concerned about mice, squirrels and other rodents getting into your home? An open corner post is an open invitation... directly into your attic! Rodents can cause thousands of dollars of damage by chewing on household wiring, nesting in insulation and causing unwanted odors.

Want the best mouse trap without resorting to mouse poison? Then protect your home with Kritter Caps®.

Kritter Caps® also keeps snakes out of the attic as well!

If you have vinyl siding on your house you need to close the entrance door that mice use. You ask where is the door? Well, the door is at the bottom of the outside corners of your home. The corner piece is called the “corner post” and it is an open runway for mice to go directly into your attic.

Take a flashlight and use a small mirror to look up into each corner post on your house. You should see no obstructions all the way up. This is how mice, rodents and insects get into your attic. This is why Kritter Caps® were invented – to close this door and entry way into your attic/cellar.

Before and after view of how kritter caps work



Stop Mice & Rats

An open corner posts give mice and rodents direct access to your attic. Scratching in the night is an indication that you have mice in the attic. Mice chew on wires causing unsafe wiring. Mice leave lots of droppings and urine which causes odor and ceiling spots. Did you know that mice and rats chew on the wiring because the wire jacket can contain vegetable oils?

Patents allowing vegetable oils to be added to PVC polymers


Stop Bees & Hornets

Insect infestation is a serious concern for many homeowners. It can be very destructive and costly to correct. The Kritter Caps® can help prevent a variety of insects, such as bees and wasps from entering your corner post and establishing nest sites in your home. Our corner post inserts will save you money , time and the hassle of fixing other forms of damage repair. They’re so cost effective, YOU CAN’T AFFORD NOT TO PROTECT YOUR HOME!


Stop Chipmunks

Chipmunks nest in attics because it is great shelter and plentiful sources of food. Since they spread around their urine and feces, chipmunks expose house residents to unpleasant smells and various diseases. Chipmunks can also gnaw on wooden beams, insulation, and wires. This can cause structural issues and increase the risk of electrical fire. Stop them from ever entering the attic with the Kritter Cap® .


Stop Snakes

Snakes in the attic are the "SILENT INTRUDER" that many people are unaware of. Snakes will occupy a home for food and shelter as the main reason with food being THE REASON the snakes are there. So with every snake in the attic, there is a rodent problem that will go right along with it. Snakes can't be stopped by many usual pest control solutions. The only thing that can positively stop snakes from going up through the corner post of your house is Kritter Caps®.

Hi, my name is John Stouffer My product is called the Kritter-Cap®.

Kritter-Cap® is designed to fit inside of the corner post of a vinyl sided home. These corner posts are not sealed and generally they are open to the attic, which can allow mice, bees, wasps, hornets, small squirrels, snakes and other rodents direct access to the attic.

They also make a safe hiding place for gophers and chipmunks, which dogs love to chase and will not hesitate to chew the corner post in an attempt to get that pesky critter.

We are proud to support US business. Our products, from drawings to end including the molds, etc. are all USA produced. This causes our pricing to be a little on the high side, but the end results are high quality, dependable and time tested products.

Stouffer Technologies, Inc. considered SAFETY as
the #1 priority when designing the Kritter Cap®.
Kritter Cap® is engineered to fit firmly in place and positively stay secure for many years.

Kritter Cap® is NO LONGER available for sale on Amazon.

Frequently Asked Questions

Steel wool rusts. It deteriorates leaving rusty metal particles which is a hazard to small pets.
Foam seals the corner post, so it can’t breathe, causing condensation to accumulate.
Wire mesh can many times be pulled out by squirrels.

Spring traps are used to kill the rodent after the intrusion. This leaves a smelly and unsanitary carcass that is left behind to remove.

Once you’ve sprung that trap, whether with your finger or something set it off, the traps have to be re-baited.

Glue traps when placed outside are a hazard to small birds.

They are dangerous to small children and family pets, regardless if the poison is inside or outside the home.

Electronics devices sound good until you have to replace the batteries in that device in the attic when the batteries die. If you have a device that runs on 110 power, it’s not effective when the power goes out.

Kritter Caps® method of pest exclusion is the safest and most positive non-violent method of eliminating mice from ever getting in the attic.

Good afternoon: it came today. Great product, already got them installed! Thanks again!

- Chris House Owner

Received last night and they worked out perfect. Thank you. Great product!!

- Rocco

John, Received caps today. Simple to install as advertised. Took about 10 minutes. Thanks for your help and product. Should keep the chipmunks out.

- Jay

Thanks John! And thanks for answering your phone for our questions the other day!!! Hoping to keep the critters out this fall and winter!

- Jami G.

Nice product for my new siding

- Michael M

I just completed installation.... Thanks for your help and excellent product.

- Karl Z.

They installed effortlessly..... Your product should be mandatory on all new construction......

- Tommy S

I received them today and already put them in the corners. They worked great!

- Alan M.

Got the Kritter-Caps today and already they are installed. Very nice product.

- Joseph L

They fit great!!

- Ken J.

Good Day Mr. Stouffer, Thank you for the additional Kritter-caps you so kindly sent me. I have all the vinyl corners capped now. Your product, in addition to securing multiple potential entry points, has also been so helpful diagnostically to rule out areas of pest entry. Every few days I “make the rounds” with your very handy mirror to ensure the caps remain in place and have no signs of entry/exit attempts. Every cap remains staunchly in place. Mother Nature and her creatures are tenacious so I thank you for your help and expertise in tackling this challenge. Stay safe and well,

- Linda F.

Hi John, Thanks for the extra critter caps with a wider angle for the bay window. We ended up using one original Kritter cap first and then a center cut critter cap next so there wasn’t any side or center spots open. Hope it works! Thanks again.

- Tammy K

I also appreciate you inventing kritter caps!

- Helen

I think I have it. I’ve installed several so far with no issues. Thanks for your help.

- Ron

The package arrived Friday. Thanks for the awesome service! All the best,

- Kris

I want to let your company know that the Caps are engineered perfectly and was able to adjust them to fit just like you indicated. Also, I had spray foam in there before these caps were installed, and in 2 corners, I believe chipmunks actually breached the foam through. Your Caps are the best invention. Siding companies should be using these when they install the siding. Great service and great product, and I will spread the word to neighbors and friends!

- Anthony

Thank you! Great customer service!!

- Debora

The caps arrived today. The directions were clear and the installation was easy. Thanks for the quick order processing!

- Tom

Perfect 100% Satisfied Thank You.

- Keith

Hi John, Thanks for the reply. My initial interest was a recommendation from a local pest control company that recommended that I cover the openings as potential access to the structure. To date, we have not had any issues or viewed any evidence of access by these corners.

- George

After I got home, I soon learned how to cut the inserts you gave and ended up cutting them all. I already had 8 of the 11 corner posts installed and within 10 minutes had your inserts added. They work well once you figure which cut is required to fit the style of corner post. I am very pleased. Thanks again!

- Lloyd

Hi John, Installed the caps, had no problems. Your instructions are very explicit. They are working great. Thanks again

- Ginger

Your comments were very educational. If there is anything I can do to give you feedback on the product during/after installation, please do not hesitate to ask. I will promote the caps through word of mouth.

- Richard

Hi John,I’m writing with an update to let you know that since putting in the KritterCaps one month ago, we have not had one mouse! All of our traps are still loaded with peanut butter and nothing has been eaten or tripped! This is BIG. We’ve had exterminators totaling several hundred dollars, and still, the mice would come! Thank you, thank you, thank you! We can now finally finish our walk out basement without the fear that we will have extra guests lurking about the place.

- Deb

KitterCaps is the best thing I've seen. Any chance you have or are working on something to block critters from getting under the siding were it meets the foundation? Thank you.

- Diane