Range from the cheapest installation of a burglar alarm £140 (RB Electrical based in SA20) to the dearest installation of a burglar alarm £220 (Charles B Sams based in SA14).
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 SA19 by posting a job with HaMuch and we will send it to fire & security specialists in SA19.