I booked Sam to replace connectors that an emergency plumber had advised me needed changing. Sam arrived right on time, took a look at the job and informed me that I had been misadvised. The connectors were good quality ones with a 25 year guarantee and he felt it would be wrong to change them. Sam refused to charge me, even though I offered to pay for the journey to my house. I have complete confidence in Sam's work ethic and honesty and will definitely give him a call when I next need a plumber.