Claiming for bad work commissioned by insurance company

Hi,

If your home insurance sends a contractor to repair something and that repair is defective who is liable to a charge of negligence? Is it the Insurer or the firm that carried out the repair?
Please help.

Thanks!

I didn't find the right solution from the Internet.

References:https://www.freeindex.co.uk/business-advice/claiming-for-bad-work-commissioned-by-insurance-company_4943.htm

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