Range from the cheapest fitting of a smoke alarm £49 (M.J.H Electrical based in ME3) to the dearest fitting of a smoke alarm £84 (Rochford Electrical Services based in SS4).
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 SS3 by posting a job with HaMuch and we will send it to electricians in SS3.