Just Moved In? The Heating Checks Worth Doing First
Buying a house means inheriting a heating system nobody explained to you.
Buying a house means inheriting a heating system nobody explained to you. A survey rarely tells you much about the boiler beyond its existence, and the previous owner's paperwork often doesn't appear at all. A short, structured set of checks in the first few months prevents the classic first-winter breakdown and tells you what you're actually working with.
Establish what you have
Identify the boiler make, model and approximate age, whether it's a combi or a system with a cylinder, where the stop tap is, where the gas meter and emergency control valve are, and where the condensate discharges. Knowing these five things makes every future call-out faster and cheaper.
Get a baseline service
An initial service on an unknown boiler is diagnostic as much as maintenance — it establishes combustion performance, system pressure behaviour and water condition. If the system has never been cleaned, that shows up immediately and is far better dealt with in your first autumn than in January.
Small upgrades with a real payback
A magnetic filter, a correct inhibitor dose, working thermostatic radiator valves and a properly configured programmer are inexpensive individually and change how the house feels. Balancing radiators after moving in is free-of-parts work that fixes most 'one room is always cold' complaints.
Planning a replacement without panic
If the boiler is old, you don't need to replace it the week you move in. Knowing its condition lets you plan and budget, and finance is available on installations if you'd rather spread the cost after the expense of buying. What you want to avoid is finding out in the middle of a cold snap.
Common questions
Should I service a boiler that was serviced before I bought?
If you have documentation showing a recent service, you can wait until the next anniversary. Without paperwork, assume it wasn't done — a baseline service is worth it for the diagnosis alone.
How do I know if my boiler is near the end of its life?
Age, efficiency rating, availability of parts and repair history together. We'll tell you where yours sits and roughly how long you can reasonably plan for.
Is a magnetic filter worth fitting retrospectively?
Yes, particularly on a system with no known cleaning history. It protects the heat exchanger, which is the most expensive part of the boiler.
Can you explain the system to me while you're here?
Happily. Knowing what your own controls do is genuinely useful and it means fewer unnecessary call-outs later.