5 Signs You Need a New Boiler Before Winter

There is a big difference between choosing a new boiler and being forced into one. In September you can compare options, get a fixed price and pick an installation date. In January, with the house cold and the old boiler condemned, most people take the first slot available. If your boiler is showing any of the signs below, now is the time to look at it properly.

How do you know if you need a new boiler?

You usually need a new boiler when repairs are becoming frequent, parts are hard to get, running costs are climbing, or there is a safety problem with the way it burns. One sign on its own does not always mean replacement. Two or three together, on a boiler more than 10 to 15 years old, usually does.

If you are on the fence, our guide to deciding between boiler repair or replacement sets out how to weigh the cost of a repair against the age of the boiler.

1. Is your boiler over 10 to 15 years old and breaking down more often?

Most gas boilers are designed to last somewhere in the region of 10 to 15 years with regular servicing. Past that point, components wear together: the fan, pump, diverter valve and electronics can all start to fail within a short time of each other. If you have had more than one repair in the past year, the next one is often not far behind.

Plenty of older boilers still run safely and are worth keeping serviced. The warning sign is the pattern of repeat faults, not the date on the label.

2. Are parts for your boiler obsolete or hard to get?

When manufacturers stop making parts for a model, a simple fault can leave you without heating while a part is tracked down, or with no repair possible at all. Your engineer will usually tell you at a service or repair if parts for your model are becoming scarce. Treat that as a clear signal to plan ahead rather than wait for the fault that cannot be fixed.

3. Is the flame yellow, or is there soot around the boiler?

On boilers where you can see the flame, it should be crisp and blue. A lazy yellow or orange flame, black sooty marks on or around the casing, or brown staining near the flue can mean the boiler is not burning gas properly and may be producing carbon monoxide. This is a safety issue first and a replacement question second.

Once the engineer has made it safe, they can tell you whether a repair is sensible or the boiler has reached the end of its life. You can check any engineer on the Gas Safe Register.

4. Are your gas bills rising for the same warmth?

If your gas use keeps creeping up while your habits and your home have stayed the same, the boiler may be losing efficiency. Older non-condensing boilers and systems full of sludge or scale both burn more gas to deliver the same heat. Signs include radiators taking longer to warm up and hot water that is slow to reach temperature.

A service and a system clean can recover some of this. But if an older boiler is already well maintained, a modern condensing boiler with proper controls is where the bigger improvement comes from.

5. Is the boiler getting noisier?

Some noise is normal. New or worsening noises usually are not. Kettling, rumbling, whistling or grinding can point to a scaled heat exchanger, a worn fan or a failing pump. In a hard water area like Stoke-on-Trent, scale build-up in the heat exchanger is a common cause. Individually these are often repairable; on an older boiler with other problems, they add to the case for replacing it.

How does a video survey and fixed-price quote work?

You do not need an engineer in your home to get a price. We offer free remote video surveys over WhatsApp, FaceTime or Zoom. You show us the boiler, the flue, the gas meter and where the pipes run, and we give you a fixed price in writing. What goes into that price is explained in what affects the cost of a new boiler.

Before the survey, it helps to have ready:

• The make and model of your current boiler.
• How many bathrooms and showers you have.
• Whether you have a hot water cylinder or tanks in the loft.
• Any faults or repairs in the past couple of years.

Our combi packages are based on the Navien NCB300 in 28kW, 37kW and 41kW sizes, each with a 5 year warranty, a magnetic system filter and a wireless room thermostat.

Planning a new boiler in Stoke-on-Trent before winter

If your boiler ticks more than one of these boxes, get a free fixed-price boiler quote now while installation dates are easier to arrange. You can see our current packages on the new boilers page, or call 07896 677083 to book a video survey. We install across the area, from Stoke-on-Trent to Stone and beyond, and can service your new boiler there too.