Agree with @StriderHort Halfords is only as good as the mechanics and people they employ. Some places are very good and have superb staff but the top management and sometimes local management never look after their staff at shop floor level. Usual stuff. So here you have a customer who has had his car totalled whilst it is in the care of Halfords. It's a car. It's a place that does repair or service. Nothing else really matters. Shame there is no dash cam!! Retain any emails, confirmation of agreed works, booking in etc Presuming the police took a collision report, your nominated solicitor will have access to the witness reports and details of the collision (for a fee). It's not a minor bump. Get hold of any cctv that may have been recorded along the route where the car went. Use any legal expenses, or find a specialist solicitor to make a claim against Halfords insurance. The car is only one piece here. Have they identified the driver? Was Halfords negligent leaving the keys out? Make a claim against Halfords and provide supporting documents for every single expense created by this. Go to court and you will soon find that companies don't like their dirty laundry washed in public. Most legal teams will advise to settle out of court.