Range from the cheapest installation of a carbon monoxide alarm £44 (Liam McDonagh based in CT17) to the dearest installation of a carbon monoxide alarm £104 (KelectriC based in CT20).
Comparing electricians estimates for fitting a carbon monoxide detector 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 carbon monoxide alarm in CT21 by posting a job with HaMuch and we will send it to electricians in CT21.