Brakes binding at the front

[Steve McF]

So I got the Aero back after the long running traction control fault saga. All good, but within probably 100 miles of driving since I got the car back, I now have what sounds like brakes binding at the front wheels.

Today I managed to jack the car up to check the front wheels. Both front wheels don't rotate freely and sound like the brakes might be binding. So I was thinking a caliper might be at fault, but how can both calipers be faulty at the same time?

Could there be an ABS issue? There are no faults showing, so what is going on?