May 26, 2016 - 08:45 AM
Typically, a trench about 3-4" wide and deep is made next to the foundation wall, and that trench is then saturated with Termidor SC at a rate of 4 gallons per 10 linear feet. Since you have cement next to your outer wall, the only way to treat it is to drill 1/2" holes every 12 inches through the cement, then using a funnel, pour the Termidor SC through the holes at a rate of 1/2 gallon for every hole. The cement is then patched or plugged up using special plugs called Trebor plugs.
All of this is rather complex, but it can be done by a homeowner. I would recommend to get several free estimates from local pest companies, quiz them about how all of this is done, and then decide if you want to do it yourself. If so, we can certainly help.