Range from the cheapest PAT testing £70 (Gsi-Gas based in SE5) to the dearest PAT testing £160 (BSS Electrical based in SW9).
Comparing electricians estimates for PAT testing 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 for PAT testing by posting your job to electricians in Clapham.