Welcome to meraboiler a reputed boiler repair and new boiler installers in london we are specialised in providing new boiler installations for vaillant boilers. We had an overflowing clogged toilet they came quickly and were so nice - i love these guys!! Ridgid sectional machines use high-speed cutting action to drill through obstructions. Three types of boiler are available. Arrived within 20 minutes of phoning (despite it being late evening!) extremely polite, warm and friendly easily.