“Enclosed please find a cheque for the excellent work which was carried out by your workmen regarding the replacement of my faulty Oil Tank. I was delighted with the speed that you responded to my leak at the tank. Both your workmen who carried out the replacement also the construction of a concrete base were very professional and it was obvious to me that they were aware of what was required to deal with the problem, they also had a very pleasant nature. I obtained your name and address from the yellow pages and I will most surely recommend you to any of my friends who find it necessary to replace their oil tank. Thank-you so much for a job well done.”