Couldn't have asked for more thanks drain masters! Learn what you can do to help your systems run smoothly and reliably! For more information or to get a free estimate, please. We are very proud to have a fantastic workforce who strive to deliver a superior service, providing market leading materials such as: worcester-bosch & vaillant boilers, honeywell controls and stelrad & myson radiators all at a cost designed around you! A typical combi-boiler.