The Belron-owned company declined to say how many jobs were at risk, but confirmed it was undergoing a company-wide review.
Autoglass said: “2005 was a very challenging year for us. In order to maintain a market leading position we have taken a careful look at our internal structure to ensure that resource levels are aligned to meet our future business requirements.”
Norwich Union now refers the majority of its repair and replacement jobs to its in-house glass services supplier RAC Auto Windscreens.
The Autoglass spokesman said the company has decided to make a number of changes within its head office and its main branches and a consultation process has commenced with the people that may be affected.
“We very much hope to redeploy as many people as we can,” he added.
Belron is the world’s largest automotive glass replacement company. Other subsidiaries include Carglass, AutoRestore and vehicle inspection firm Motorcheck.