Range from the cheapest installing or fixing of light switches £60 (MCE based in WC1N) to the dearest installing or fixing of lightswitches £170 (Vertex AV based in WC2H).
Comparing electricians estimates for installing or fixing light switches 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 repair or replace light switches in St Pancras by posting a job with HaMuch and we will send it to electricians in St Pancras.

"Replace dimmer switch"
EC1M
"Install or fix a light switch"
UK