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Last updated: 25 June 2024

Best Boilers & Boiler Brands in 2024

best boiler brands in the UK
  • Viessmann Vitodens 100-W is considered to be one of the best boilers in the UK.
  • Worcester Bosch makes the most reliable boilers in the UK.
  • The best boilers in the UK cost between £1,500 and £5,000 and provide warranties of up to 12 years.

Searching for the best boilers can be confusing, especially with all the fancy features and various brands out there. On top of that, deciding on which best boilers will suit your home can turn into a word puzzle with no clear solution.

But the answer to the question "What is the best boiler to buy?" depends only on your unique needs. Things like size, type, and hot water needs all play a role. 

In this guide, we'll explore some of the best boilers on the market and hopefully help you decide which boiler is the most reliable and affordable for you. A qualified boiler engineer can help you narrow down your search for the best new boilers. However, finding the right engineer can feel overwhelming with so many options and potentially take hours of research.

Thankfully, Household Quotes can do all the heavy lifting for you. Complete our short form to receive up to 3 free, no-obligation quotes from our network of trusted installers. Just click the button below—it only takes a minute. 

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How did we select the best boilers & best boiler brands?

buy the best boiler

When selecting the best boilers in the UK, we considered several key factors to ensure you choose a reliable, efficient, and cost-effective option for your home. So, here are the main criteria that guided our research:

1. Established history and reputation

Firstly, we looked for boiler manufacturers with a long-standing reputation for quality and reliability. Brands like Worcester Bosch, Vaillant, and Baxi are well-regarded in the UK market for their durability and efficiency.

We also considered the manufacturer's history of innovation and consistent quality, which provides insights into their commitment to producing dependable boilers.

2. Energy efficiency and sustainability

We also chose boilers with high efficiency ratings (A-rated). For example, the Worcester Bosch Greenstar 8000 Life and Viessmann Vitodens 100-W are considered to be the most efficient boilers on the UK market.

We opted for models that support sustainable energy sources, such as those compatible with biofuels or hydrogen blends. Eventually, this reduces your carbon footprint and energy bills.

3. Customer satisfaction

Another thing we did was analyse customer reviews and feedback on platforms like Trustpilot to gauge the reliability and performance of different boiler models. Undoubtedly, high customer satisfaction scores are a good indicator of quality. 

For example, such websites provide feedback from customers and heating engineers with experience with specific brands and models.

4. Competitive pricing

We compared the prices of different boiler models, including installation costs. For instance, depending on the brand and model, system boilers can cost about £580 and £3,500. Combi boilers cost around £500–£3,000, and you can pay anywhere between £600 and £3,500 for conventional boilers. 

We ensured that the boiler offers good value for its price, considering the new boiler cost and installation, as well as energy savings and maintenance expenses.

5. Warranty coverage

The best boilers have long warranty periods, typically 5 to 12 years. This provides peace of mind and reduces the risk of unforeseen repair costs.

Some manufacturers offer extended warranties if the boiler is installed by an approved installer or if additional features are included.

6. Customer service excellence

Manufacturers that provide the best boilers to buy also offer robust customer support, which is crucial for dealing with any issues or maintenance requirements. Responsive and helpful customer service can significantly enhance your overall experience.

7. Diverse model range

A broader selection of models allows manufacturers to cater to different needs, such as varying home sizes and heating requirements. Brands like Worcester Bosch and Viessmann offer a wide range of system boilers with different output sizes and fuel types.

Top 5 best boiler brands in the UK

best boilers in the uk

#1 Worcester Bosch

  • Worcester Bosch was established in 1962 by Cecil Duckworth as Worcester Engineering Co Ltd in Worcester, England.
  • The company offers one of the best gas boilers, as well as models fueled by heating oil, and LPG. 
  • The company runs schemes like Environment 2020 to promote energy efficiency. 

Worcester Bosch is shaping the future of heating with energy-efficient and sustainable solutions. For example, they've developed a hydrogen prototype boiler, winning the "Best Heating Innovation" award. Also, they focus on future-proof technologies like hybrid heating systems.

Worcester Bosch offers combi, system, and regular options to match your needs and home size perfectly. Plus, you can enjoy extended warranty options, with coverage lasting up to 12 years for peace of mind. 

#2 Baxi 

  • The company was founded in England by Richard Baxendale, and its headquarters are now in Warwick, England.
  • Baxi introduced the first high-efficiency combi boiler in 1983.
  • Baxi has several training centres to educate installers and engineers on its products. 

Founded in 1866, Baxi Heating offers a range of combi, system, and heat-only boilers for various home needs. 

Known for reliability (ranked 3rd by Which? with 5 stars) and customer satisfaction (4 stars on Trustpilot), Baxi also prioritises a sustainable future with its 2025 pledge for low-carbon compatible products. 

#3 Ideal

  • The company was established in Hull, England.
  • Ideal has received multiple product awards, including the Queen's Award for Enterprise. 
  • It is famous for its innovative heating solutions, including the Logic and Vogue boiler ranges.

A leader in heating since 1906, Ideal offers combi, regular, and system boilers known for their innovative features and long lifespans. 

Like the pioneering Logic range, their boilers prioritise efficiency (over 90%) and come with extended warranties (up to 12 years) for peace of mind.

#4 Viessmann

  • The company was founded in Hof, Germany in 1917.
  • Viessmann operates in 74 countries and has 22 production companies in 12 countries.
  • It is known for its innovative technologies, including the first condensing boiler in 1989.

Viessmann focuses on quiet, sustainable heating systems with condensing boilers and green technologies such as ESyCool. 

They also offer solar, heat pumps, and CHP (Combined Heat and Power) systems for ultimate efficiency. Moreover, the company integrates ventilation, air conditioning, and digital services for smart home management, focusing on customer satisfaction.

#5 Vaillant

  • It has a history of technological innovations, including the first closed-system gas-fired bathroom boiler in 1894.
  • In 2019, Vaillant was recognised as a Superbrand for its high reputation and quality.
  • The Easter hare logo, introduced in 1899, is one of Europe's most famous heating technology logos.

Founded in 1874, this German brand is a major European heating company known for innovation. It has won numerous awards for its eco-friendly products, including the iF DESIGN AWARD. Also, Vaillant prioritises quiet operation with several Quiet Mark-accredited models.

Feeling overwhelmed by the manufacturer options? Household Quotes can simplify your search. Fill out our quick questionnaire and receive up to 3 free quotes from pre-vetted installers, all within a minute. Click the button below to get started!

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Top 5 best boilers & most reliable boilers in the UK

So, what are the best boilers in the UK? Here are our top picks.

#1 Worcester Bosch Greenstar 4000

worcester bosch  greenstar 4000
  • Type: System, combi
  • Output range: 12-24kW
  • Efficiency: 93%-94%
  • Warranty: Up to 12 years
  • Price range: £975-£1,200

Which? considers this model one of the best boilers for home. It is known for its quiet operation, long-lasting reliability, and at least 90% efficiency. Also, it meets the UK's strict ErP standards for energy savings.

With condensing technology and an advanced heat exchanger, the Greenstar 4000 minimises environmental impact.

Another key point is that this boiler is easy to use. The "Quick Tap" function saves water, and it works with the Bosch EasyControl smart thermostat for precise room-by-room temperature control.

#2 Baxi 800 Combi

baxi 800
  • Type: Combi
  • Central heating output: 21.2kW–26.4kW
  • Hot water output: 25kW, 30kW, 36kW
  • Efficiency: 93%
  • Warranty: 10 years
  • Price range: £858-£1,205

Considered the best combi boiler choice in the UK, the Baxi 800 Combi is known for its adaptability and durability. Its wide range of output options makes it also the best combi boiler for a 3 bed house and larger properties.

Above all, Baxi boilers are known for their impressive efficiency, reaching up to 94%. Additionally, its lengthy warranty provides peace of mind.

The Baxi 800 Combi includes the Adey Micro2 Filter, a smart feature that helps maintain the boiler's efficiency by removing debris from the system and preventing breakdowns. This ensures reliable heating and hot water for your home.

It is also available in system and regular models.

#3 Ideal Logic range

ideal logic max regular
  • Type: Regular 
  • Output range: 15–30.3kW
  • Efficiency: 93%-94%
  • Warranty: 7–10 years
  • Price range: £732-£1,117

Ideal's Logic boilers are the most budget-friendly and best home boilers on the UK market. In addition to their affordable prices, they come with a long 10-year warranty for peace of mind.

Moreover, Ideal Logic boilers are user-friendly, with clear controls and built-in features like frost protection for added convenience. 

They're also a popular choice for new builds in the UK, potentially benefiting from lower manufacturing costs.

#4 Viessmann Vitodens 100-W range

vitodens 100-W
  • Type: Combi
  • Central heating output: 19-kW–32kW
  • Hot water output: 27.3kW–34.9kW
  • Efficiency: 94%
  • Warranty: Up to 12 years
  • Price range: £1,1255–£1,292

While not on the lower end of combi boiler prices, Vitodens 100-W Combi could be your perfect match if you seek efficiency and reliability. With an impressive 94% efficiency rating, this boiler helps you save money on heating bills even with fluctuating energy prices. 

This surprisingly compact and lightweight boiler delivers exceptional performance for larger homes while maintaining whisper-quiet operation at just 35 dB. 

Advanced technology, such as the modulating MatriX-Plus cylinder burner and Inox-Radial heat exchanger, contributes to its exceptional efficiency and lifespan.

#5 Vaillant ecoTEC Exclusive Green IQ 835

vaillant ecotec exclusive green iq 835
  • Type: Combi
  • Central heating output: 26.4kW
  • Hot water output: 35.3kW
  • Efficiency: 94%
  • Warranty: 10 years
  • Price range: £1,485–£2,068

This Vaillant boiler prioritises both efficiency and sustainability. Its Green iQ technology automatically optimises performance to reduce gas use. It also has a wide modulation range, adapting to your heating needs for maximum efficiency. There's even a dedicated Green iQ mode for even lower fuel consumption.

This boiler is also eco-friendly throughout its lifecycle. Not only is it highly efficient, but an impressive 85% of it can be recycled at the end of its lifespan.

For extended warranty coverage (up to 10 years), consider having a Vaillant Advance installer handle the installation.

These are just the top 5 best boilers to buy; undoubtedly, there are many more. A professional installer can help you find the most reliable boiler or recommend any available boiler grants. But how long would it take to find a reputable installer near you? The searches can drag on for weeks!

So why not speed things up with Household Quotes? Filling out our form takes only 30 seconds and brings up to 3 quotes from professional boiler installers in your area. Our services are free of charge and non-binding. Compare the quotes with no obligation to place any orders. Click the button below to get started!

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The best boiler suppliers in the UK

So there you have it: top boiler suppliers in the UK. They are Worcester Bosch, Vaillant, Baxi, Ideal, and Viessmann. These brands offer energy-efficient and reliable boilers which suit any household size and budget.

Purchasing a new boiler is an important investment, so finding the right supplier is crucial for ensuring a smooth and successful installation. An experienced installer can help you find the best option. 

Here's how to navigate the process and identify top-notch boiler installers in your area:

  1. Decide on the boiler type: Understanding your hot water and heating requirements is crucial. Firstly, select the type of boiler you need – combi, system, or regular – to ensure it meets your household's demands.
  2. Choose a boiler brand: Secondly, research popular boiler brands in the UK. Trustworthy review sites like Which? or Trustpilot can shed light on reliability, efficiency, and customer satisfaction ratings for different brands.
  3. Find suppliers: Thirdly, search for local installers who work with those brands. This will give you a good idea of pricing variations and allow you to compare service offerings.
  4. Ask about qualifications: Ensure the installer has Gas Safe registration and is accredited by a reputable boiler manufacturer.
  5. Request quotes: Lastly, get a detailed quote that outlines the boiler model, installation costs, warranty information, and any potential disposal fees for your old boiler.

Sounds like a lot of hassle? It definitely shouldn't be! Household Quotes can save you valuable free time by doing all the heavy lifting. 

We can help you find quotes by quickly connecting you with up to 3 qualified installers in your area. You can then compare their quotes and choose the best price. Complete our short form to get your free, non-binding quotes. Click below to get started.

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