It has been a positive experience dealing with Frontier from start to finish. Your first clue that they’re a professional company that’s aware of people’s security concerns is when they send you an email the day before the estimate with a picture of the person who will be coming to your home. I got a fair estimate and after spending an hour with the owner I was comfortable enough to set up the install right then. I didn’t feel pressured at all and also didn’t feel the need to look further either. 3 days later a 3 man crew was at my house and by the afternoon I had a fully working brand new furnace and air professionally installed. A nice touch with the air conditioner is that they build a nice, level 4×4 base to put the pad on that looks really nice and gets the unit off the ground more. I threw the guys $20 towards lunch as I’ve always felt that it’s a small investment that’s much appreciated by the crew and will make the guys want to go that extra mile as John did when he caulked an area in my skirting that he didn’t have to but he felt it would help keep critters out and just plain look better. Also, the office ladies have been nothing but polite, professional and downright friendly to deal with over the phone. I won’t hesitate to recommend Frontier to anybody and everybody.