Range from the cheapest fixing an electrical fault £80 (Plumbing & Heating based in SW11) to the dearest fixing of an electrical fault £180 (MGB Electrical Solutions Ltd based in SW6).
Comparing electricians estimates for troubleshooting and diagnosing an electric fault 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 fix an electrical fault in SW10 by posting a job with HaMuch and we will send it to electricians in SW10.

"Troubleshoot & diagnose an electrical fault. Replace a burnt socket and replace main fuse"
SW3
"Troubleshoot & diagnose electrical fault. Washing machine and dishwasher power doesn't come on. (Dishwasher brand new)"
W14