During re-roofing works at my house, rainwater caused extensive damage to a bedroom ceiling, so I have still not made the final payment to the roofing company. They admitted liability and proposed a method of repair. When the plasterers arrived to carry out the work, they decided that the method proposed wasn't practical because of the state of the ceiling and that a framework would be needed - so a slightly more expensive repair.
After some prodding on my part I received an email from the roofing company asking me to 'acquire costs to repair your bedroom ceiling' and forward to them. I asked another builder to quote and forwarded the quote yesterday. Then I got a reply asking when they could expect 'the other two.' I responded that they hadn't asked for three quotes and got the reply 'Sorry, but I’m sure you understand this would be the correct procedure.'
I now presume that three quotes are wanted to present to their insurance company. I work full time so getting builders to attend is a major inconvenience for me, plus it will obviously cause yet more delay.
So my main question is: Am I obliged to obtain more quotes to satisfy the roofing company's insurers?
Supplementary question: My preferred course of action would be to ask the company that already quoted to do the work and deduct the cost from the final payment, but can I do that legally?
Timeline if relevant:
15/16 Sept - email exchanges about the problem 18 Sept - roofing company inspect damage and propose repair 7 Oct - plasterers arrive and decide proposed repair not workable 13 Oct - roofing company ask for costs 22 Oct - quote forwarded then 2 more quotes requested