Danfoss RAS-D² 10/15mm x 1/2" Thermostatic Radiator Valve & Lockshield
Range from the cheapest fitting of TRVs (thermostatic radiator valves) £122 (Akello Plumbers based in EC1V) to the dearest fitting of TRVs£148 (Practical Design and Build Ltd based in EC1V).
Comparing heating engineers estimates for fitting a Danfoss, Pegler or Hive TRV gives you an idea of who will be better value but the best way to compare costs is to get quotes.
What to do - Get rates and quotes to fit TRVs in Guildhall by posting a job on HaMuch and we will send it to heating engineers in Guildhall.
*All prices are estimates based on the hourly or day rate of heating engineers in Guildhall, UK TRV offers and materials.

"Fit thermostatic radiator valve (TRVs) in one radiator that currently has an old-fashioned valve."
LONDON
"Fit thermostatic radiator valves, Danfoss RAS-C2"
SE1