Range from the cheapest partition wall installation £177 (MO ANI INTERIORS LTD based in TW1) to the dearest partition wall installation £527 (ThePlumbers.org based in TW7).
Comparing carpenter & joiners estimates for building a partition wall 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 put up a partition wall in W4 by posting a job with HaMuch and we will send it to carpenter & joiners in W4.