I have rated 5 star for Heatable as it was so easy to book my boiler installation online and guarenteed a very good fixed price ,my choice of installation day which was the following week even though so near to Christmas . Heatable was in touch every step of the way even on the morning of install . Ryan arrived on time and was hard at work immediately ,5 hours later my heating was up and running ,no mess at all , showed us how to use the controller and even set it all up ,really impressed with Ryans work and the communication from Heatable ,I would definitely recommend this company