eff installed a complete house retrofit intercom system in our home after our old NuTone system failed. We have 10 stations in the house and Jeff did a very professional job, was very responsive and quoted a fair price that didn’t change. Because we were having construction work done as part of the overall job–Jeff had to visit the house multiple times (5 times) to perform his work around the contractors and he was always polite, responsive and professional. The quality was excellent and Jeff never seemed rushed–always patient and careful. It was a pleasure to meet Jeff and we now have a great contact for vacuum systems, intercom, and alarm.