Jonathon Laney opened the 18,000 sq ft three-unit repair centre in 2012, with the site featuring two spray booths and an array of advanced equipment.
However, Paul MacKenzie, who is supported by a team of 25 technicians, now manages the Hanworth-based unit which willo now be re-branded as Fix Auto Heathrow.
Mackenzie said: “Having operated as a second-tier support repair centre for Fix Auto UK for some time, we have experienced an insight into the services and level of support being part of the network brings to a business.
“We are currently repairing around 50 cars a week but we have a team in place and the facilities to increase our productivity.
“We are extremely ambitious, joining Fix Auto UK will hopefully help us to reach our true potential and fulfil our ambitions.”
Fix Auto currently works across nine countries: UK, Canada, USA, France, Turkey, Australia, South Africa, China and Germany.
In total, it has 700 bodyshops in the above countries, and repairs over 150.000 vehicles per year.
H&L Motors is a family-run business, which has worked with the likes of Aviva, Direct Line, HM Government and Zurich in its seven years of existence.
Ian Pugh, director at Fix Auto UK, said: “We are extremely delighted to have Paul and the team on board.
“Having yet another site within the M25 is strategically important in our plans to strengthen the network.”