Boiler maintenance: top tips for a happy boiler.

We’re all about helping you look after your boiler so it runs smoothly and efficiently.

Got a fault?

There's lots of help below for things you may be able to solve yourself. But if you've got an existing fault with your boiler, heating, electrics or plumbing and you need a professional eye, Home Recover could help.

Had boiler cover with us for more than 30 days? Request a repair online

Don't want insurance but need your boiler fixed? Book a repair.

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See our boiler guides

There could be an easy fix you can do yourself before calling a professional.

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What to do if your boiler pressure is too low

If you’re out of hot water, it could be that your boiler pressure is too low. Get it fixed with help from our guide.

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How to defrost a frozen condensate pipe

Spotting and fixing problems, understanding the causes and prevention long-term.

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Boiler not working? Here's what to do

From faulty timers to flickering lights, we go through the most common things that can go wrong with your boiler and how to fix them.

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How to bleed a radiator

Radiators making some unusual noises? It might be time to bleed them. Our step-by-step guide will show you how to do it.

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What to know about your boiler – from your engineer

Keep your boiler working with guidance from our network of Gas Safe experts.

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More ways we can help

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More ways we can help

A customer greets a boiler engineer at the front door

Boiler cover from the enthusiasts


That’s us! We’re thrilled to tell you about boiler and home emergency cover.1 Our cover plans include an annual service to help keep your boiler in tip top condition.

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Boiler cover from the enthusiasts


That’s us! We’re thrilled to tell you about boiler and home emergency cover.1 Our cover plans include an annual service to help keep your boiler in tip top condition.

A boy enjoying a meal at a kitchen table

There are 3 levels to choose from

Each one includes this good stuff as standard...

Unlimited call outs

Our network of expert engineers is raring to go

An annual service

Every boiler needs some TLC to help keep it safe and efficient

24/7 emergency helpline

Our dedicated team is ready to help, day or night

Buying a new boiler


It can be a big expense and the options can be daunting. But if the time comes to buy new, our guides can help you make the best decision for your home.

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Buying a new boiler


It can be a big expense and the options can be daunting. But if the time comes to buy new, our guides can help you make the best decision for your home.

Two women holding mugs and laughing

Check out A-rated boilers

You can find a range of brilliant boilers with our partner CORGI HomeHeat. All of these boilers are A-rated – meaning they score top marks for efficiency. In fact, switching from an old G-rated boiler to a new A-rated condensing boiler (with a programmer, room thermostat, and thermostatic radiator controls) could save you up to £630 a year on your energy bills.2

The boilers come with a smart thermostat. This handy tech lets you adjust your home heating through an app, so you can keep on top of when your home is heated, and the temperature.

Greener ways to heat your home

Check out our guides to the different options out there for lower carbon home heating. From air source heat pumps to storage heaters – and more.

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Alternatives to gas boilers

To help you cut carbon at home, here are some greener alternatives worth exploring.

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A guide to low carbon heating solutions

There’s all sorts you can do in your home to reduce its carbon footprint. From nifty modern storage heaters to solar thermal panels, here are some options for you.

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All you need to know about air source heat pumps

To find out all about this low-carbon home heating option, read our handy guide.

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Heat pumps vs boilers: what's right for you?

From costs to installation, there’s a lot to think about before you switch your heating system. Here’s some handy info to help you decide.

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Air source heat pump grants for UK households

If you’re looking to switch to a heat pump, there might be financial help available to you. Our guide takes you through the options.

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Ways to make your home more energy efficient

Here are some ideas to help make your home more energy efficient – which can help lower your home’s carbon emissions, and save energy.

Using a smart thermostat

A tado° Smart Thermostat lets you adjust your heating from your phone. OVO customers get an exclusive OVO member price. Get a smart thermostat.

Getting a free smart meter

Smart meters show you how much energy you’re using – making it easier to spot ways to save. Book today.

Looking after your boiler

Keeping your boiler in good shape means it’ll work more efficiently. All our cover plans include an annual service. Get boiler cover.

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Why join OVO Energy?

Your energy essentials

Use our free app to track energy use in your home3

We've planted 5 million trees

across the UK for our customers4

You're in safe hands

We’re trusted by millions of UK homes

Sources and references

1 Terms, conditions, eligibility criteria, exclusions and cancellation charges apply.

2 According to the Energy Saving Trust (July 2023), a detached household moving from a G-rated boiler to a new A-rated condensing boiler with a programmer, room thermostat and thermostatic radiator controls (TRVs) could save up to £630 a year. Savings will vary depending on the size and thermal performance of your home. Here are their calculations.

3 OVO’s 2019 analysis of academic research into the effectiveness of feedback on energy consumption behaviours indicates that being able to monitor your energy usage by installing a smart meter and having access to energy insights information can lead to a reduction in energy use. The reduction in energy use results from the customer making changes to their habits by curtailing home energy use through actions such as optimising heating settings or switching lights off. The actual savings achieved will vary depending on individual energy use and the nature of changes made to a customer’s energy habits. OVO’s energy tracking is currently available for the majority of OVO customers and will be made available to all remaining customers soon.

4 Since 2015 we have planted 5 million uk-native trees in schools and communities across the UK on behalf of our customers.

OVO Energy Ltd is an appointed representative of CORGI HomePlan (for general insurance distribution), which is authorised and regulated by the Financial Conduct Authority under firm reference number 824122.

CORGI HomePlan Ltd and OVO Energy Ltd are part of the OVO Group Ltd.