Range from the cheapest fitting of a smoke alarm £44 (Ashton Air Ltd based in BS3) to the dearest fitting of a smoke alarm £194 (JPS Electrical Services based in BS13).
Comparing electricians estimates for fitting smoke detectors 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 fit a fire alarm in BS14 by posting a job with HaMuch and we will send it to electricians in BS14.