Range from the cheapest installation of a burglar alarm £150 (Steve Becker Limited based in SN9) to the dearest installation of a burglar alarm £350 (Property Matters Southern Ltd based in SO16).
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 SP5 by posting a job with HaMuch and we will send it to electricians in SP5.