Range from the cheapest installation of a burglar alarm £140 (Goldsmith & Sons based in SS17) to the dearest installation of a burglar alarm £1000 (KPC Electrical Ltd based in CM11).
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 SS16 by posting a job with HaMuch and we will send it to electricians in SS16.