 News Talk KBOI. Heating and air conditioning companies are everywhere you look. TV, radio, in your mailbox, on your computer, on your phone. It can be confusing. From huge flashy corporate companies down to HVAC businesses operating from the back of a pickup. Who do you trust? As a third generation Idaho HVAC professional, Doug Lamott and DML Services of Idaho believes if it sounds too good to be true, it probably is.