I have lived at my current address since 2010, and Bill from All Seasons has been my first call for all my boiler work. Finding professional trades can often be hard in London, but from day one it was clear that Bill knew his trade, and I've always been confident in his work. He maintained my old boiler, and then when it was clear it was at the end of its life, he helped guide me through what I needed to consider with the replacement. I then also had him install the new boiler and flush the central heating system, and he's since come out every year for regular service, and other times I've wanted his professional help. I particularly appreciate his yearly reminders for services that he posts yearly. I think I'd forget if it were left to me! He's always been prompt to his appointment times, and is quick to return when needed - in my particular case, a small leak developed, and it required extra attention so it wouldn't ruin my kitchen wooden bench tops under the boiler. I have no hesitation in recommending that Bill become your regular boiler and heating consultant.