Cannot recommend these guys highly enough.

 Mr Hinton Palmers Green n13

Just had full central heating installed. Engineer removed old back boiler style heating and re-routed all plumbing to the complete opposite side of the house (where the new boiler had to be installed). Very neat and clean job and also installed additional pipe work for a future radiator while at it! Superb job with no shortcuts and no delays. Cheaper than any other quote we had – really exceptional service.