In Minnesota and the surrounding states, bats
are an important part of our ecology. One Little Brown bat can eat as many as 500-600 mosquitoes an hour for a total of
two to five thousand a night. A colony of bats can eat 100's of thousands of mosquitoes a night. Given the amount of
mosquitoes we still have buzzing around us in the summer evenings, imagine the problem we would have if it weren't
for our winged friends of the night. The method of exclusion
that we use has been deemed bat friendly enough that the MN Dept. of Natural Resources has seen fit to use us as a
referral to people who are having bat problems.
(Click here for more information)
the seven species of bats that we have in our area,
three are tree dwellers and have little or no
interaction with man. The other four species of bats
found in Minnesota are cave dwellers, and unfortunately
our homes appear to a bat as a large, convenient cave.
The two species of bats that cause the majority of
problems in Minnesota are the Large or
Big Brown bat (Eptesicus fuscus), and the
Little Brown bat (Myotis lucifugus).
are looking for a safe and effective means to
eliminating bat problems in your home, please keep these
things in mind:
Do your homework when choosing a
company to solve your bat problems. Don't be afraid
to ask specific questions regarding claims and
experience. Many use scare tactics and temporary
solutions that leave the homeowner with a recurring
problem and unnecessary expense. Don't be fooled by
claims of experience and anonymous referrals. Get
of the process. Any legal deterrent or safe
repellent that you can try yourself can be seen on
the MN DNR website.
(MN DNR - Bat Repellents)
Exclusion is the only true solution for bat removal.
No other product, chemical or otherwise, will offer
a safe, permanent
(MN DNR - Bat Exclusion)
must be done from the exterior and most times
requires a greater measure of risk and effort than
the average homeowner is willing or capable of
Exclusive Batproofing, we have successfully bat proofed
1000's of homes. Our bat friendly process of exclusion
was developed in the 1970's by the nations leading bat
specialists Marshall Hanks and Dr. Merlin Tuttle who
went on to establish the organization
Conservation International based in Austin, Texas.
Using this method, the bats are allowed to exit the
structure through a one way device that we make called
the Excluder. We mount the Excluder at the exit points
being used, allowing them to leave the structure
generally for feeding (every night or two) without any
hindrance. Because of their longevity (30 yrs.), and
reluctance to change living quarters, all other possible
reentry sites need to be sealed to prevent the bats from
finding a new way into the structure. This includes any
crack 1/4" wide by 1" long, (the width of a pencil by
one inch long), or a hole roughly the size of your
thumbnail. Within a few days all the bats living in the
structure will exit through the Excluders and, because
of their inability to reenter, will out of necessity
move on to find a new place to call home.
that once we bat proof your home you will be bat free.
If any possible entry sites are missed and not sealed,
the bats in their nightly search of the structure will
find it and reenter the building. For this reason,
although we have a less than a 3% call back, we give the
homeowner a 3 year warranty/service period - so that if
there is any reoccurrence, we will return at no further
charge to take care of the problem. Once the bats have
been successfully excluded from the home, simply keeping
up with your normal household maintenance will ensure a
bat-free home for many years to come.
We bat-proof throughout the upper midwest. No fee's are
charged for travel and cost is based on the physical
features of the home. We
stand behind our work, and rest assured, if upon arrival
of the job site we find no evidence of an infestation,
we will tell you and only an inspection fee will apply.
For a free estimate and
further information on how to get your home bat-proofed
Or Toll Free: (888)
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