Fit boiler - Vaillant system boiler ECO TEC 618 ( exact same model replacement - labour only )

HEAT EXCHANGE UNIT INSTALLTION Apologies. Actually this was a "false"diagnosis by a so called Gas Safe Engineer "who Totally misfired". The issue had nothing to do with the Heat exchange. I'm not sure why he made that to be the problem. Very disappointed. Thank you for responding anyway.

diverter valve replacement

Do my annual Boiler services (Vaillant)

Replacing radiator valves for 5 radiators

Need a quotation to change all the radiator at house

Remove unserviceable 2 port valve, fit serviceable replacement, function check.

combi boiler needs servicing and replace i think 1600 mm is the size single panel rad

We have a hot water CH system with underfloor heating and a Honeywell controller. I need someone to undertake a review of the system and resolve a number of known issues/bugs.

CB50 boiler flue in our Community Centre condemned by Service Engineer - has shut it down as dangerous - need to replace it asap.

we’ve had an issue with our glow worm boiler and we’re unable to restart it without it showing the fault symbol after a minute or 2, it will start up and will stop soon after showing a flashing 'F' as the fault. We've had a plumber out prior who said he suspected it was a pump but we've not heard back.