Firstly, don't underestimate the jump from the essentially skill based course which is an engineers licence, and the far more analytical (but less skill based) course which is an engineering degree. It's not so much a difference of higher/lower standards, as very different learning styles needed.
Secondly, yes, there are several universities offering part-way entry for licenced engineers into degree courses.
Here is one quite well regarded course, but there are others.
Aircraft Engineering BSc(Hons) top-up - 2015 and 2016 entry course - London undergraduate courses - Kingston University London
Off the top of my head, Hatfield, UWE, Perth / UHI might offer alternative courses, but I've not checked.
Typically you're looking towards a year of full time study (or part time equivalence) to go from where you are to a degree.
G