Range from the cheapest installation of a burglar alarm £266 (Handy Andy based in n1) to the dearest installation of a burglar alarm £300 (Sam electrical based in Nw1).
Comparing fire & security specialists estimates for fitting a burglar alarm gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes to install a downstairs toilet in King's Cross by posting a job with HaMuch and we will send it to fire & security specialists in King's Cross.