It has been our experience that Massey provides insurance coverage for 10 years after the initial treatment, with an annual inspection costing about $130 to keep it in force. When our home was 10 years old, they required re-treatment to keep the insurance in force. We had another in-the-ground preventive treatment and 10 more years of annual inspections.
When our home reached 20 years old, once again Massey required re-treatment and this time we chose the Sentricon baiting system, which Massey seems to now believe is superior. This also requires an annual inspection of the traps and of the home, which is a little more costly, about $150. I'm surprised you need re-treatment after 7 years.
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