Excellent service provided re: maintenance call on our furnace, which, after five years, didn't seem to be heating the house as effectively. Also the upstairs rooms, especially the ones far from the furnace room in the basement, have never felt warm enough. The technician, Peter, was prompt, friendly, knowledgeable, thorough, and professional, and now our furnace works as before. Peter told us the furnace that the builder installed wasn't big enough for our square footage which, combined with the fact that we live on a corner lot (therefore extra wind exposure and extra windows), explains the chillier upstairs rooms. Having said that, he wasn't the least bit pushy in trying to sell us a new, bigger unit. Would definitely call them again and recommend them to others.