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Heating

Advice on boilers, radiators, central heating systems and keeping your home warm and energy efficient.

Heating

Frozen Pipe Prevention

As the days get longer and the evenings and mornings are lighter, it may feel as though spring is on the way. However, it is not unusual for a February/March frost to catch us unawares. If freezing temperatures are predicted in your area, it is a good idea to do what you can to prevent your pipes from freezing, especially if you are planning on going away during the half-term.

As the days get longer and the evenings and mornings are lighter, it may feel as though spring is on the way. However, it is not unusual for a February/March frost to catch us unawares. If freezing temperatures are predicted in your area, it is a good idea to do what you can to prevent your pipes from freezing, especially if you are planning on going away during the half-term.

Why do pipes burst?

When water freezes it expands. If you have ever put a bottle of drink in the freezer to chill and forgotten about it, you will know that the pressure build up of frozen water can be enough to pop most lids. The same can happen to your pipes, too. Preventing frozen pipes is essential to avoid potential damage and costly insurance claims. Simple precautions, such as insulating pipes, ensuring adequate heating, and sealing any openings where cold air can enter, can significantly reduce the risk of pipes freezing and bursting. Regular inspection and maintenance to address corrosion or weaknesses in pipes will further minimise the likelihood of failure. Investing time and effort in these preventative measures can ultimately save money and prevent inconvenience.

To reduce the chance of your pipes freezing, you can do the following:

Insulate: Use affordable pipe lagging and tank jackets from DIY shops or your local plumber to insulate your pipes and water tanks effectively. Cover all exterior pipework, including bends, valves, and fittings, as well as outdoor taps. Additionally, insulate pipes in colder areas within your home, such as unoccupied loft spaces, garages, and basements.

Get your boiler serviced: Ensure your heating system is functioning properly by making sure that you schedule your annual boiler service. You ideally want to do this in winter, but it is never too late; check out our list of reliable boiler servicing specialists and see who is available.

Get the warm air flowing: During cold spells, particularly if you are going away and keeping your heating on low, open the hatch to unheated loft spaces to allow warm air from lower levels to circulate, preventing freezing. If your pipes or tanks are located inside cupboards, keep these doors open to facilitate the circulation of warmer air from within your home.

Keep the heating on low: Set your thermostat to a minimum of 7°C, even when you're away, to prevent pipe freezing. Consider utilizing a thermostat equipped with Frost Protection functionality, automatically activating heating if temperatures dip below 7°C.

Keep the warm air in – and the cool air out: Seal windows tightly, address draughty areas, and use draught excluders on doors to prevent cold air infiltration, thus helping maintain suitable indoor temperatures and protecting pipes from freezing.

By implementing these steps you can significantly reduce the likelihood of frozen pipes and mitigate potential winter-related damage and inconvenience.

For more tips about keeping your home safe and warm, whatever the weather, follow Trust A Trader on Facebook or X.

Looking for more heating advice?

Find clear, practical answers to common heating questions, helping homeowners understand everyday issues, know what checks they can carry out safely, and when it is best to contact a qualified professional.

  • What is the difference between a combi boiler and a system boiler?

    A combi heats water straight from the mains on demand - no cylinder needed, which makes it compact and ideal for smaller homes or flats. A system boiler works with a hot water cylinder, storing a ready supply that can serve multiple taps or showers at once without the pressure dropping - better for larger homes with more bathrooms. There's also the conventional boiler, which needs both a cylinder and a cold water tank in the loft - common in older properties. A heating engineer can help you figure out which suits your home best.

  • Is an air source heat pump right for my home?

    Heat pumps pull warmth from the outside air (even when it's cold) and use it to heat your home and hot water. They work best in well-insulated homes, ideally with underfloor heating or larger radiators that work well at lower temperatures. In draughty or poorly insulated properties, the benefits are more limited. The Boiler Upgrade Scheme currently offers a grant of up to £7,500 towards installation, so it's worth getting a professional assessment to see whether your home is a good fit before committing.

  • How often should a boiler be serviced?

    Once a year, by a Gas Safe registered engineer. It keeps the boiler running safely, catches small issues before they become expensive, and is usually a condition of the manufacturer's warranty. Some home insurance policies require proof of regular servicing too. If you're not sure when yours was last done, book one before winter - better to find out before you're sitting in a cold house!

  • Why is my radiator cold at the top but warm at the bottom?

    This issue is almost always trapped air. Bleeding the radiator - using a radiator key to release the air - usually sorts it, and it's one of the few heating jobs you can safely do yourself. If bleeding it doesn't work, or if several radiators are having the same problem, it might be a pressure or pump issue. Worth getting a heating engineer in to have a look.

  • What are the signs my boiler needs replacing?

    Keep an eye out for: frequent breakdowns, energy bills going up without using more heat, unusual noises (banging, kettling, or whistling), a flame that's yellow or orange instead of blue, and any visible leaks or rust around the unit. If your boiler is over fifteen years old and ticking any of those boxes, replacing it is usually the more economical choice - modern boilers are significantly more efficient.

  • Is underfloor heating worth it and do I need a professional to install it?

    For a new build or a big renovation, underfloor heating is often a great investment - it heats rooms more evenly than radiators and can be more efficient, especially alongside a heat pump. Retrofitting in an existing home is more of a job, and how worthwhile it is depends on your floor types and how much disruption you're happy to deal with. Either way - wet or electric - it has to be installed by a qualified professional.

  • Why does my boiler keep losing pressure?

    Some pressure drop over time is normal, but if you're topping it up regularly there's usually a cause: a small leak in the system (which isn't always easy to spot), a pressure relief valve that's releasing water, or air in the system after bleeding radiators. Topping it up via the filling loop is fine as a short-term fix, but if you're doing it more than a couple of times a year, it's worth getting an engineer to look into why it keeps happening.

Have a question about TrustATrader?

If you have a question in relation to TrustATrader specifically, please check out the TrustATrader FAQs, with separate lists tailored to consumers and tradespeople. Alternatively, get in touch with our team. We're happy to help!