is it a good idea to have a private company that deals with

I had a leakage on my first floor powder room last night and that resulted in flooding on the living room and finished basement.I promptly informed my insurance company and they have send an adjuster this morning. But at the same time i have invited an independent private renovation restoration company executive to come and inspect.Afet the adjuster was gone i have made an aggrement with this company executive to deal on my behalf with this adjuster and this executive sold me the idea that its in my interest to deal with him as adjuster will be only looking the interest of the insurance company. The deal bitween me and this company is that insurance will issue the check under his company name and if i back out and not go with this company for repairs,restoration the i will lose 20%.He also told us that when the adjuster sends someone for the construction evaluation we should inform him so he will be present. In the mean time the adjuster has sent cleaning drying experts and they have put those big machines to dry up the place.Now i am wondering if i made this decision of signing this paper with the company excutive in a hurry.I am very nervous.Please help with your expertise.