painter

Hi, I wanted someones opinion about a job my landlord had done. It was to paint a one bedroom flat including prep,cracks,woodwork - all white. Firstly, it took the painter and another painter that worked on and off 3.5 weeks to do the job. Left all of their stuff (dust sheets, hoovers...

I am looking to decorate 3 or 4 rooms, including stripping old anaglypta wallpaper, lining walls & painting. I've had a quote from a decorator but it's way more that I can afford. Would they be really insulted if I asked them to do it all except paint? (since I can do that myself)