If your radiators do not seem to be getting as hot as they used to, then you might need to bleed your radiators. You can buy a radiator bleeding key in most DIY stores. Use the key release any trapped air that might be circulating around your central heating system.
To put it simply, we review your current costs and contracts, and report back to you on any cost savings we can make for you. With your go ahead we will then manage the project from start to finish.