Testimonials

"I know that geothermal is what I recommend to all those I know that are looking either to replace an existing system, or are building new homes. Keep up the great work and...
I chose O'Brien based on their exemplary rating on Angie's List. Chris J was our service tech who arrived promptly at 8 AM. He was extremely professional and knowledgeable....
O'Brien Service Co, has, for the past 20 years given me consistently excellent service. Each year they provide service to my geothermal system which they installed and I...
We have a Geothermal H/C unit installed and serviced by O'Brien's for over 2 years. It has been a pleasure to work with this office and I cannot say enough about their...
O'Brien and Mike R. were prompt and courteous. They cleaned the site every evening before leaving. They kept us informed every step along the process. The geothermal...