Range from the cheapest installation of a burglar alarm £160 (AOM Builders Ltd based in UB4) to the dearest installation of a burglar alarm £850 (ThePlumbers.org based in TW7).
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 South West London by posting a job with HaMuch and we will send it to electricians in South West London.