Danfoss RAS-D² 10/15mm x 1/2" Thermostatic Radiator Valve & Lockshield
Range from the cheapest fitting of TRVs (thermostatic radiator valves) £74 (London Reliable Plumbers based in IG2) to the dearest fitting of TRVs£164 (HeatMe Plumbers based in IG6).
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 IG4 by posting a job on HaMuch and we will send it to heating engineers in IG4.
*All prices are estimates based on the hourly or day rate of heating engineers in IG4, UK TRV offers and materials.

"Fit thermostatic radiator valves (TRVs) As above"
IG6
"Fit thermostatic radiator valves (TRVs) to 8 radiators that currently do not have thermostatic valves"
IG1