Best company to work with EVER!! I was spending $700 a month in the summer months on my A/C. I have a historic home and was bleeding money on my A/C bill every summer. Ideal Energy came out and was able to save me $100-$115 on my bill in the summer by making my home more efficient. I don't know if the savings will be as significant in the Winter. I am a curious person so I was asking a lot of questions and their rep Alex was super helpful and patient.