Range from the cheapest fitting of a smoke alarm £74 (One Will Electrical and Building based in SE25) to the dearest fitting of a smoke alarm £184 (Smart Electrical London Ltd. based in BR3).
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 SE25 by posting a job with HaMuch and we will send it to electricians in SE25.