You have no need to call a plumber. Installing a bathroom radiator is simple, anyone can do it. I'm not an expert and it took me just a couple of hours to install this in my bathroom.
For this project I used a masonry drill, because my house is made from ceramic blocks, a screwdriver and a PPR pipe welding kit.
I have a gas powered central heating system that uses hot water in a close system to heat up the house.