Range from the cheapest installation of a burglar alarm £200 (SR Gas and Electricity LTDG Ltd based in KT5) to the dearest installation of a burglar alarm £350 (Wired Get Connected based in TW11).
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 KT1 by posting a job with HaMuch and we will send it to electricians in KT1.