Al from Energy Technologies is very knowledgeable and the staff that does the installation is top notch! They installed a mini split system in our log house and did some followup maintenance. Both were great jobs! They are all very professional and really make you feel comfortable that you're getting quality work! Great customer service! This was only my first time using them, but I would definitely use them again in the future. I think that mini split systems are a great way to save money and keep your house well, and I would really recommend giving Al a call and seeing what he can do for you!