Range from the cheapest installation of a carbon monoxide alarm £44 (Eyes4usecurity based in Ha0) to the dearest installation of a carbon monoxide alarm £144 (M&E Electrical Contractors Ltd based in UB6).
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 Harrow by posting a job with HaMuch and we will send it to electricians in Harrow.