Shirley had a room that never got warm enough. The radiator on the wall was simply too small for the space, so no matter how long the heating was on, the room stayed cold. I swapped it for a larger vertical designer radiator with the output the room actually needs.
The existing radiator was undersized for the room. It would get hot, but it did not have the output to bring the whole space up to temperature, so the room always felt cold compared to the rest of the house.
I drained down, removed the old radiator and fitted a larger white vertical designer radiator in its place. Vertical rads give you a lot more output for the wall space, which makes them a good fix for rooms where a wider radiator will not fit.
The pipework was adapted to the new connections, the system was refilled and bled, and the new radiator was checked hot across every panel before I left.

Tell me what you need and I will come and look at it. You get the price before I start.