We are also qualified to install un-vented hot water systems. As plumber and heating engineers, we had to sit and pass exams in order to carry this work out. We also had to sit and pass tests on becoming MCS Registered in order to fit solar thermal systems. I have a small team who works with me and will be taking on other people at some point (obviously depending on workload). However, I do not want to lose the personal touch with customers as I feel this is what keeps my business healthy and helps me to keep costs down for the customer. 5 years of installing and servicing renewable systems like solar thermal, air to air and air to water. When we work in a customer’s house we make every effort to be clean and tidy. As a matter of course on installation work, we put dust sheets down and fully clean up after the work has been completed.