Range from the cheapest installing or fixing of light switches £36 (AP Electrical based in TF10) to the dearest installing or fixing of lightswitches £62 (Abode Automation based in ST20).
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 ST21 by posting a job with HaMuch and we will send it to electricians in ST21.