Range from the cheapest installation of a burglar alarm £140 (Tom finn based in M19) to the dearest installation of a burglar alarm £250 (MJ Security based in M34).
Comparing electricians 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 SK14 by posting a job with HaMuch and we will send it to electricians in SK14.