Range from the cheapest replacing of floorboards £320 (PI Building Limited based in SE9) to the dearest replacing of floorboards £1,190 (Bromley handyman based in BR2).
Comparing carpenter and joiners estimates for replacing and repairing floorboards 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 replace floorboards in SE6 by posting a job with HaMuch and we will send it to carpenter and joiners in SE6.

"Replacing floorboards.very squeaky through lounge floor. ? Need floor replacement. Hardwood floor"
SE12
"Replacing floorboards through lounge. Squeeky. Need hardwood floor"
SE12