CPH were on the list of installers recommended by the manufacturer (Honeywell) to install smart heating controls. They made 2 visits to discuss our requirements, the second to clarify and answer my questions. They arrived on time and on the specified day. The 2 people worked in a manner to minimise mess and disturbance to us and cleaned up thoroughly after. A minor problem found during the installation was rectified at no additional cost having discussed the alternative options. The system is working as expected but too early to think about reliability.