Getting your drain down done professionally by us, ensures that your insurance stays validated should you have any problems due to frost.
What are you paying for?
Extraction of all moisture from water system using a large compressor.
Check that central heating system can cope with temperatures as low as -15 centigrade.
Topping up central heating system with specific Anti Freeze if necessary.
Connecting up again for the new season, all you have to do is turn on the water at the outside connection.