One appliance and crew from Gerrards Cross, one from Beaconsfield, one from Langley, along with an officer attended.
A car had ended up on its side on arrival, a man was passed into the care of South Central Ambulance Service.
The firefighters used stabilisation kit, a short extension ladder and small gear.
A full carriageway closure was put in place.
The incident was left in the hands of Thames Valley Police and the National Highways.
