Our boiler lost pressure. I rang Dan and he was able to squeeze in a visit the same day to fix the low pressure problem. He arrived when he said he would and was able to identify the problem quickly and fixed it. He also advised that the problem may re-occur and if so what needed doing. The water pressure went again and he replaced the part and all is fine. He was friendly, efficient, a tidy worker and answered all questions about the problem. I would use his services again.