Paul phoned prior with time he would arrive, he arrived when he said he would, in a clean marked walkers van, and in walkers uniform. He immediately got to work on my boiler was impressed that he put a dustsheet on my worktop, then placed his tools. He replaced parts and then tested to make sure boiler repaired. All the while talking me through each stage, after repair he explained best way to work my gas boiler as I've I had solid fuel before so completly new to gas. Polite and thorough service from start to finish. Paul knows his stuff Very Knowledgeable and experienced engineer. JOB WELL DONE! ! ! !