UPDATE:
Been to see them today, the installation is only 6 years old! looks neat and tidy all labelled up. Ideal T&I job in anything!
I asked if she got quotes for the work, she had 3: ÂŁ800, ÂŁ500 and the winning quote: ÂŁ270! I had a laugh about cheapest not always meaning the best!
I then asked if the testing company put a quote in for their suggested remedial work... Yes over ÂŁ1000!! i saw it myself! Now all the faults make sense, touting for work.
Im going to phone NICEIC now and see if they are interested in this report, its lucky she asked for quotes for the remedial or this would never have come to light!