I have been using SAR for 4+ years since buying an old house with an Old furnace. SAR has always been reliable and professional. I called this week because furnace was not heating house properly. Rather than charge me for a service call Tony patiently walked me through the problem and diagnosed an ongoing issue. Our house reached the correct temperature within 24 hours and now my wife is warm and happy with me. SAR came through when we needed them the most. Thank you.