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Posted in
10/11/2025

5 Signs Your Boiler Needs Servicing Before Winter Hits

When the nights start to draw in and the Yorkshire wind picks up, the last thing you want is your boiler breaking down.
In Scarborough, where winter temperatures can dip below freezing and the sea air adds a little extra chill, keeping your boiler in top condition isn’t just a comfort — it’s a necessity.

Here are five clear signs your boiler needs servicing before the colder months arrive and why booking a check now with Supreme Plumbing & Heating could save you money (and stress) later on.


1️⃣ Strange Noises — Clunking, Gurgling or Whistling

A healthy boiler should hum quietly in the background.
If yours has started banging, clunking, or gurgling, it could mean:

  • Limescale or sludge buildup (common in Yorkshire’s hard water areas)

  • Air trapped in the system

  • A failing pump or fan

What to do:
Don’t ignore new noises, they’re early warning signs. A quick boiler service can flush out the system and prevent expensive breakdowns later.


2️⃣ Inconsistent Heating or Hot Water

If your radiators take longer to heat up or your shower temperature keeps fluctuating, your boiler’s performance might be dropping.
This can happen when:

  • The heat exchanger is blocked

  • The thermostat is faulty

  • There’s trapped air or debris in the system

Why it matters:
Reduced efficiency means higher gas bills. A professional service ensures everything runs smoothly, keeping your home warm and your energy costs low this winter.


3️⃣ Rising Energy Bills

If you’ve noticed your gas bill creeping up without changing your usage, your boiler could be the culprit.
Over time, boilers lose efficiency due to dust, scale, and wear — forcing them to work harder to produce the same heat.

Tip:
A clean, well-maintained boiler can be up to 15% more efficient, meaning your service can pay for itself through energy savings.


4️⃣ Yellow Pilot Light or Irregular Flame

A blue flame means your boiler is burning gas cleanly.
If the flame is yellow or orange, or flickers irregularly, it could indicate incomplete combustion — potentially releasing carbon monoxide.

⚠️ This can be dangerous.
If you notice this, turn off your boiler and call a qualified heating engineer immediately.

 At Supreme Plumbing & Heating, we always check your boiler’s combustion and ventilation during every service, ensuring your home stays safe and compliant.


5️⃣ Leaks or Damp Patches Around the Boiler

Any signs of drips, rust, or water pooling around your boiler mean something’s not right.
Leaks can come from internal seals, valves, or joints — and left unchecked, they can cause corrosion or electrical faults.

What to do:
Even a small leak can cause serious damage. Call a local plumber to inspect and repair it before winter hits.


Why Book Your Boiler Service Now

Booking your boiler service in late summer or early autumn means you:
✅ Avoid the winter rush (engineers get busy once the cold sets in)
✅ Catch small problems before they turn into costly emergencies
✅ Keep your warranty valid (most manufacturers require annual servicing)
✅ Stay safe and energy-efficient all year round


Local Experts You Can Trust in Scarborough

At Supreme Plumbing & Heating, we’ve helped hundreds of homes across Scarborough, Filey, Bridlington and the Yorkshire Coast stay warm and efficient through the winter.

We offer:

  • Professional boiler servicing and safety checks

  • Honest advice — repair vs. replace

  • Transparent pricing

  • Fast local call-outs

Whether your boiler’s making noises or you just want peace of mind before the cold sets in, book your service today.

Call 01723 643009

Stay warm, stay safe and let Supreme Plumbing & Heating take care of the rest.

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Mark Tidd

Mark Tidd is the Managing Director of Supreme Plumbing and Heating. With over 20 years of experience, he has a wealth of knowledge about all aspects of plumbing and heating. He's passionate about ensuring customers have up to date information to help them make the best choice for their needs, home and budget.
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