Question 1

Why is my one radiator cold when the rest are warm?

Accepted Answer

Usually a stuck or failed TRV — the pin inside the valve body seizes in the closed position. Can also be an air lock or sludge blocking that specific radiator. On older Bideford systems, seized TRVs are particularly common because the valves have been in place for a long time without servicing. I can establish the cause within a few minutes of looking at the system.

Question 2

What is a power flush and do I need one?

Accepted Answer

A power flush uses a specialist machine and chemical solution to remove magnetite sludge and corrosion deposits from inside the heating system. Given Bideford's moderately hard water, it's more relevant here than in softer water areas of Devon. If your radiators have cold spots at the bottom, if the system is noisy, or if the water is dark when you bleed a radiator, a power flush is almost certainly warranted. I work to BS 7593 and include a Magnaclean or Fernox TF1 magnetic filter plus inhibitor dose as standard.

Question 3

How much does a central heating repair cost in Bideford?

Accepted Answer

Diagnosis first, then a fixed price before any work starts. A TRV replacement is a smaller job; pump replacement depends on the pump model; power flush is priced by the number of radiators. The drive to Bideford from Barnstaple adds a small additional charge — I'll tell you the full cost up front.

Question 4

Why does my boiler keep losing pressure?

Accepted Answer

On a sealed system, the most common cause is a waterlogged expansion vessel — the internal diaphragm has failed and the vessel can no longer buffer pressure changes. The PRV then weeps each time the system heats up, releasing the excess. Topping up buys time but doesn't fix the problem. The vessel needs a nitrogen recharge or replacement.

Question 5

What causes kettling in Bideford?

Accepted Answer

Kettling is limescale on the heat exchanger creating localised hotspots where water boils before it circulates away. Given the Torridge area's moderately hard water, kettling is more common in Bideford than in the softer water areas of North Devon. Prolonged kettling stresses the heat exchanger and shortens boiler life. A descale treatment and inhibitor dosing is the starting point; heat exchanger replacement in severe cases.

Question 6

How quickly can you get to Bideford?

Accepted Answer

I'm based in Barnstaple, so Bideford is 30–45 minutes. I aim to offer same-day appointments for most faults. I'll diagnose the problem properly, and if a part is needed I'll tell you the cost and arrange to fit it.

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Central Heating Repairs in Bideford