I found this business when I had a problem this winter with my furnace. K&K was the only company that answered the phone with a live person. They responded promptly and had my heat working in no time. So I decided that I would replace my working furnace with a new up grade. I called K&K and they responded like clock work. Took me thru my options and did an excellent job on the new install. This company is for real in every aspect of what they do. If you've got and HVAC issue these are the people you NEED to call.