Red
On the only occasion I needed a fitter ( in 20 years ) a guy who worked for me, shrunk a B/W, not from ignorance, but, carelessness, failing to notice the dump valve was not closed, fully, resulting in reduced vaccum and overwetting.
I looked in Y/P and found someone claiming to be a highly skilled fitter. Fortunately, he was and charged me £70 for an excellent job.
I returned the cleaning charges to the client, do it cost me £130, but I retained my credibility and did'nt have to fork out £400 to replace the carpet.
good luck
robbie