Typically very little to not at all.  Most homes in the Northwest have eaves.  When it rains there is a dry band all the way around most homes in the exact areas we need to treat.  This dry zone extends out about a foot and a half and goes all the way up most homes to the area under those overhanging eaves.  In our area rain is rarely a downpour.  We can also often treat homes between episodes of drizzle.  Our materials are not easily washed off once applied - often needing soap, applied pressure, or power washing to remove. It is in our best interest to treat your home as effectively as possible.  We stand behind our services with a service warranty.

A band of dry ground exists around most homes.

For some pests, like rodents, we come back because of local or state agencies, and because we want to do a quality job and not waste your money.  The Dept. of Agriculture requires that we remove rodent control materials we put out, including traps and/or baits.  Follow-up inspections help ensure that we found all the rodent access points and can help to keep you from experiencing unpleasant odors.

For some pests we come back because the pest does. Today's ultra low toxicity control materials only last a few months at the most.  Some insects, especially ants, put down chemical trails that lead related ants right back to your door steps - as soon as our control materials begin to fade. These ant produced chemical trails can take years to dissolve - and that's if related ants stop following the trails and reinforcing them.

Q:  Why treat homes in the winter?