I bought my home about 5 years ago and the energy bill had gone through the roof. I assumed I needed a new AC and after calling several places and getting a few quotes and thinking we needed to replace the whole AC for a newer more efficient one. They called us and we already had a newer model and it just needed a few things replaced. The $5500 we were thinking went down to under a $1000 and our energy bill has dropped in half. They were a pleasure to work with and I will definitely continue to use them.