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Vaillant Boilers: Prices, Reviews and Boiler Ranges

Designed with a focus on energy efficiency, Vaillant boilers feature low-emission combustion technology to achieve a 94% ErP rating and come with advanced controls that allow more flexibility for heating your home. With a price range between £720 and £2,800, Vaillant is competitively priced and represents good value for money.

It’s no more than you would expect. The mere mention of German engineering should make your ears prick up. And that’s precisely what Vaillant energy-efficient boilers bring you. The company has a reputation for producing reliable and durable boilers with a long operational life.

This is backed up by gas-safe engineers and Vaillant customers alike, many of whom say their Vaillant boilers survived double-digit years. Vaillant estimates its boilers are expected to last 15 years. Some customers have reported they got 17 years out of theirs. And even when they do malfunction, engineers say Vaillant are pretty easy to service — which means they are less expensive to repair! 

That all sounds like a win-win, but are Vaillant energy-efficient boilers the Tyson Fury of the UK boiler landscape? 

The customer review site TrustPilot suggests most customers are happy with their Vaillant boilers, although 6% of reviewers complain about the low standard of Vaillant’s customer service. Could be a red flag! 

Let’s get in the ring and find out!

Aim of the content of this article?

This content is intended for educational purposes only. Boiler Prices does not have any affiliation with Vaillant or any other boiler company. We aim to inform UK homeowners how to identify the best boiler for our home at the best price. 

With that in mind, we explain everything you need to consider to make the right choice and put you in touch with local suppliers and installers to ensure you get the best price for your boiler. 

The information in this article is cultivated from a thorough research of the UK boilers market. We have reviewed numerous sources across the industry including boiler installers, distributors, consumer review magazines and, of course, Vaillant customers. 

Ultimately, the information we provide on this page is designed to help you determine whether a Vaillant boiler is the right choice for your home.

By the time you finish reading this page, you will know:

  • The different types of energy-efficient boilers Vaillant manufactures so that you can decide which type of boiler serves your heating and hot water needs
  • How many kW do you need to comfortably heat your home and meet your real-time hot water demands
  • The cost, models and efficiency of Vaillant boilers 
  • The boiler specifications and dimensions that can be installed in your home (which type of boiler is best for you)
  • Boiler comparisons that fall into the same price point and star rating as Vaillant so you can broaden your search easily

Vaillant: A Trusted Name in Boilers

Vaillant has a rich history dating back to 1874 making it the oldest heating and ventilation company in Europe. In its long history, the brand has consistently strived for innovation in heating technology. In the early 20th century, it was the first manufacturer to introduce the “closed system” gas-fired bath boiler, a significant advancement in safety and efficiency.

In recent decades, Vaillant has placed a strong emphasis on sustainability and renewable energy. The company has developed products that integrate solar thermal technology and other environmentally friendly solutions.

Vaillant expanded its operations globally, becoming one of the leading heating technology manufacturers worldwide. The company operates in numerous countries, providing solutions for residential and commercial applications.

In 2001, the German giant made a strategic acquisition with the purchase of the British heating and hot water appliance manufacturer Glow-worm which strengthened its position in the market. 

Vaillant has received numerous awards for its innovative and energy-efficient heating products including the prestigious German Sustainability Award in 2023

Considerations when buying a Vaillant Boiler

When buying a boiler for your home, there are several considerations to keep in mind to ensure that you select the right model for your heating and hot water needs. The information below details what you can expect from Vaillant boilers. 

Energy-Efficiency

The energy efficiency of modern boilers is measured by the Energy-related Products (ErP) rating. A higher ErP rating indicates better energy efficiency. Vaillant boilers are A-rated meaning they have an ErP of at least 90% which is standard fayre. 

Dimensions

Most boilers on the UK market are compact and can easily fit into any home. Vaillant boilers come in various sizes, and the available space in your home may influence your choice. If space is limited, a compact boiler may be more suitable. Larger homes are best suited to system boilers or heat-only boilers because they perform better, but you need sufficient room to host a hot water tank/cylinder. A large airing cupboard or loft is the most suitable location. 

Performance Output in kW

Vaillant offers a wide range of boilers that are suitable for heating all types of homes across the UK. However, knowing which size is best for your home is determined by a number of factors including the number of users, frequency of hot water use, number of bathrooms, size of rooms, ventilation and location. We recommend consulting a qualified energy-efficient professional for advice. 

Take advantage of our ‘get a quote’ service to get in touch with local suppliers in your area who will be happy to help you choose the right boiler. 

The size of the boiler should be appropriate for the heating demands of your home. Consider factors such as the number of bathrooms, radiators, and overall space that needs to be heated. The output rating of the boiler is measured in kilowatts (kW), and it should match the heating requirements of your property. 

Ease and Cost of Installation

The accessibility of the installation site and complexities in fitting a particular boiler site can impact labour costs. According to gas-safe engineers, Vaillant is one of the easiest to fit and components are readily available in the UK. 

This all means that installation costs, servicing and maintenance tasks are less likely to be stacked up by labour charges. The cost of professional gas-safe installers should be factored into the cost of your new boilers — and bear in mind installation costs are never included in the price shown for the boiler. 

Although Boiler Prices is not able to provide specific rates for every boiler installation provider, we can say the average installation cost for a new energy-efficient boiler in the UK is between £1,100 – £1,800. It could easily be the case that Vaillant gas boiler prices could save you hundreds of pounds over boilers that are more difficult to install.

To find out exactly how much you should expect to pay to install a new Vaillant boiler in your home, take advantage of the Boiler Prices ‘get a quote’ feature. Our convenient features give you access to a wide range of suppliers and installers in your area that compete for prices. We give you the three best options and you can choose whichever quote you prefer — and there’s no obligation to buy. 

Therefore, there’s nothing to lose by generating a selection of the best quotes. 

Get your free quote now by clicking the link and filling out the question form.

Warranty

Vaillant reportedly offers competitive warranty periods to give you peace of mind. Longer warranties also demonstrate how much confidence a manufacturer has in their product. However, on closer inspection, the typical warranty between is 2 and 7 years which is standard, not competitive.

However, their latest ecoFit models come with a 10-year guarantee which pushes them ahead of the competition. To qualify for the full 10-year guarantee, all you have to do is register your boiler. You also receive £50 cashback. 

Vaillant warranties typically cover both parts and labour during the warranty period. This means that if any components fail or if there are issues with the boiler’s performance, Vaillant will provide replacement parts and cover the cost of labour for authorised repairs.

Vaillant Combi Boilers: Compact, Efficient, and Cost-Saving

Perfect for homes with limited space and/or smaller water requirements, Vaillant combination boilers heat water only when hot water is needed. Vaillant combi boilers are the most energy-efficient boilers in the Vaillant range because they connect directly to the mains supply and don’t require a cold water tank or hot water cylinder. 

The only disadvantage is that water pressure may not be as high as it would be with other types of boilers. If more than one tap is being used at the same time, combi boilers don’t maintain the pressure so you will lose heat, i.e. the shower goes cold when someone fills the kettle. 

Prices for Vaillant combi boilers range from £850 to £1,920 with varying dimensions, flow rates and outputs. Get a Quote through Boiler Prices to find the right boiler at the right price. 

Below, you can compare each combi boiler series currently available from Vaillant and find out which options are best suited to your home and needs. It should be noted that the prices listed below only represent the cost of the boiler and do not include the cost of installation.

Combi Gas BoilerSizesSize Of HomePrice
Vaillant ecoFIT Pure Combi25 – 35kWSmall, medium and large-sized homes with one bathroom£850 – £1,100
Vaillant ecoTEC Pro Combi24 – 30kWSmall, medium and large-sized homes with one bathroom£900 – £1,800
Vaillant ecoTEC Plus Combi25 – 38kWSmall, medium and large-sized homes with one bathroom£1,100 – £1,500
Vaillant ecoTEC Exclusive with Green iQ Combi35 – 43kWMedium to large homes with one or two bathrooms£1,400 – £1,920

Vaillant System Boilers: Easy installation, efficient heating, and customisable options

System boilers provide hot water via a sealed system tank which is usually housed in an airing cupboard. They do not require a cold water tank in the loft (unlike a regular heat-only boiler) which makes them more advantageous for medium-sized and larger homeowners that have the space to store a water cylinder that can hold from 50 up to 500 litres. 

They also have the edge on combi boilers in that they deliver a consistent flow of hot water regardless of how many taps you have running at the same time. Vaillant system boilers can also be used in conjunction with other renewable energy heating systems such as solar thermal. 

Entry prices for Vaillant system boilers range start from around £780 with the premium range ringing in at around £2,800 depending on heat outputs.

Designed for homes with higher than average heating and hot water requirements, the Vaillant system boiler range is ideal for medium and larger homes or smaller homes that have storage space for cylinders up to 200 litres. It should be noted that the prices listed below only represent the cost of the boiler and do not include the cost of installation.

System Gas Boiler SeriesSizesSizes Of HomePrice
Vaillant ecoTEC Plus System12 – 37kWSmall, medium and large-sized homes with multiple bathrooms£780 – £1,370
Vaillant ecoFIT Pure System12 – 30kWSmall, medium and large-sized homes with multiple bathrooms£840 – £1,160
Vaillant ecoTEC Exclusive with Green iQ System27kWMedium to large-sized homes with multiple bathrooms£1,300
Vaillant ecoTEC Plus 48kW & 64kW System48 – 64kWLarge homes with multiple bathrooms£2,200 – £2,600
Vaillant ecoTEC 46kW & 65kW System46 -65kWCommercial buildings and large homes with multiple bathrooms£2,200 – £2,800

Vaillant Heat Only Boilers: Versatility, Efficiency, and Reliability

Vaillant regular heat-only boilers (often referred to as open vent or conventional boilers) provide central heating and hot water via a boiler, a storage cylinder (which is usually housed in the airing cupboard), and a cold water tank (which is typically housed in the loft). 

The expansion, or “feeder” tank in the loft draws water from the mains supply and then feeds the hot water cylinder. The water is then heated by the boiler and can be distributed throughout the property. It might take time to reheat once the water runs out due to it being cylinder-driven but you can use taps, showers and baths in different rooms at the same time which is a necessity for larger families. 

Vaillant estimates, on average, that each person per household will use around 50 litres. They have cylinders that can hold up to 500 litres, but you should consult with a gas-safe engineer to make sure the hot water doesn’t run out.

The price for Vaillant regular heat-only boilers ranges from £796 to £1430 depending on the kW output. Ask a local supplier which kW output you need to comfortably heat your home and meet your water demands. 

The Vaillant regular boiler range has been developed with small, medium and large homes in mind. It should be noted that the prices listed below only represent the cost of the boiler and do not include the cost of installation.

Note: the prices listed below are the purchase prices for the boiler only. They do not include installation costs.

Regular Gas Boiler SeriesSizesSize Of HomePrice
Vaillant ecoFIT Pure Regular12 – 35kWSmall, medium and large-sized homes with more than one bathroom£730 – £1,440
Vaillant ecoTEC Plus Regular12 – 35kWSmall, medium and large-sized homes with more than one bathroom£720 – £1,520

Living with your Vaillant boiler

Vaillant Boiler Warranties

No matter which Vaillant boiler you have installed, it will come with a manufacturer-backed warranty that covers you for certain parts and labour charges in the event of a breakdown. Vaillant also offers a 10-year guarantee on some boilers if you register with the company. A guarantee means the warranty is valid for any type of fault with no exceptions. Repairs are guaranteed. 

The warranty is there to provide you with peace of mind should you need any repairs during the warranty validation period, and the length of the warranty can vary depending on the boiler model and who you choose to install the boiler. You also need to know that strict terms and conditions must be followed to keep the warranty valid. Take a look at our handy guide to the Vaillant Boiler Warranty to learn more about what is covered by the warranty, how to register it, and the terms and conditions you need to follow.

Vaillant Boiler Controls

Vaillant offers a wide range of optional boiler controls that are designed to reduce fuel costs, ensure your home remains comfortable and make sure your boiler runs in the most efficient way possible. There are lots of Vaillant boiler controls available, from traditional controls and simple heating timers to smartphone app-based thermostat controls. The most appropriate solutions will depend on which Vaillant boiler type and model you have, as well as your individual requirements. To help you make the right choice, we’ve put together a guide to Vaillant Boiler Controls and how they enable you to control your heating and hot water system.

Vaillant Boiler Cover and Breakdown Options

Keeping your new Vaillant boiler in the best working order is the perfect way to make it last longer. Vaillant offers their very own Care and Repair plan, provided by Domestic and General, that offers you access to the best engineers when you need them the most. The plan includes an annual service as well as call-out fees and repairs up to £1500, plus they will even replace your boiler if your current one cannot be fixed. Find out more about Vaillant boiler cover.

Vaillant has shared some customer reviews on its website, but nearly 20,000 more can be found on the world’s most powerful review platform, Trustpilot. The brand has an overall score of 4.5 out of 5 stars on Trustpilot, with 78% of customers leaving a 5-star review and rating Vaillant boilers as excellent.

Vaillant Boiler Surveys and Reviews

Vaillant scores fairly well on the customer review site TrustPilot and has received plenty of reviews that should encourage homeowners to look for a new energy-efficient boiler. The words ‘trusted’ and ‘reliable’ stand out.

The German boiler brand consistently receives a full 5-star rating, according to 78% of its customers, although this has dropped by one per cent since we last examined the data. 

Having said that, from almost 20,000 reviews left 6% of customers complained about poor customer service. Although this is a common complaint in the heating sector, some brands actively try harder attentive. Worcester-Bosch, Baxi and ironically Glow-worm who is part of the Vaillant group receive higher marks for customer service.

Which? Engineers Review

Vaillant scores top marks in almost every category in the Which? survey including build quality, customer satisfaction and engineer recommendations. Ringing in an 81% rating across all categories, Vaillant is only tipped off the top perch by Worcester Bosch which tops the charts with 82%. 

The latest ratings have seen Vaillant move up the table to second from fourth after receiving an overall score of 76% in 2018. Vaillant is the only brand to receive a full 5 from 5-star rating from gas-safe engineers which is based on build quality together with the ease and availability of repair and sourcing spare parts for repairs. Because Vaillant boilers are easy to fix, you might also be able to lower the costs of repairs and instalments.

Vaillant Overall Score

Reliability 4 Stars
Customer Score 5 Stars
Overall engineer score 5 Stars
Ease of Sourcing 5 Stars
Ease of Replacing 5 Stars
Build Quality 5 Stars
Manufacturer Support 4 Stars
Unbiased Recommendation 4 Stars

Based on responses from a September survey 2023 Which?

How do Vaillant boilers compare with other boiler brands?

Vaillant is recognised as one the leaders in the UK energy-efficient boiler market and, in the eyes of some, is unrivalled. The closest company that even comes close is Worcester-Bosch — although there are conflicting reports. Some review sites put the latter above, but suffice it to say, Vaillant and Worcester-Bosch are more or less like-for-like. Vaillant’s edge is arguably its slightly lower prices but still produces high-quality, long-lasting products. 

But according to Which? reviewers, Vaillant only earned 4-stars for reliability which is no match the 5-star reliability rating of Worcester-Bosch. The durability is reflected in the prices and the quality of parts that are used to build the products. 

Even still, you should expect to get a good 10-15 years from a Vaillant boiler. Worcester Bosch, on the other hand, is known to last as long as 25 years…so the extra investment gives you better value for money over the long term. 

Other boilers you may want to consider that fall into the same price point and reliability pocket as Vaillant are Ideal, Glow-worm, Baxi and Viessmann Vitodens 100-W

Boiler Prices Verdict on the Vaillant Boilers: 4/5

Regarded as a heavyweight champion of the boiler world, Vaillant boilers are the darlings of gas-safe engineers and customers alike — mainly because they are reliable and long-lasting without having to burst the bank. 

Vaillant’s high scores in the Which? the survey is more or less echoed by the popular customer review site TrustPilot. The German boiler brand consistently receives 4 and 5-star ratings, although the 6% of reviewers that complained about the low standard of Vaillant’s customer service is a red flag. We knocked 0.5 off the overall rating to reflect this. 

It would appear that a good percentage of UK homeowners, however, put their faith in Vaillant. According to the brand, 1 in every 3 boilers sold in the UK is manufactured by the Vaillant Group. Although the boilers boast German design and engineering, they are manufactured in award-winning facilities across the UK. 

After consistently being awarded a Best Buy status by Which? across their entire line of domestic boilers, Vaillant is regarded as the top-rated gas boiler brand in the UK. However, we feel the ErP of 90% could be better. The UK government has set an industry target of 92% as a minimum. 

Ordinarily, we would dock brands that fall short of the recommended target by another 0.5 points, but gas-safe engineers confirm that Vaillant outperforms many of its competitors. They overwhelmingly rate Vaillant above other boilers — but mostly because they are easier to repair. We docked it anyway.

Vaillant are top-performing boilers, we don’t dispute that. But we do feel as though engineers show some bias towards Vaillant over Worcester Bosch because they are easier to work with. From a customer point of view, that will mean a Vaillant boiler won’t take as long to service or repair – which means less labour costs. 

So, why buy a Vaillant boiler?

Vaillant boilers are highly recommended throughout Europe for their efficiency and environmentally friendly designs. You wouldn’t really expect anything less from the second-largest boiler manufacturer in Europe.

With 150 years of experience in producing high-quality products, Vaillant is noted for consistently producing energy-efficient boilers that are kinder to the environment without compromising on heating and hot water performance.

The Vaillant ecoTEC Pure range in particular has earned glowing praise for its build quality and reliability. Manufactured with the highest quality components and backed with guarantee* packages of between 2 and 7 years or 10 years if you register the boiler. 

* Note, a guarantee is superior to a warranty in that it promises to repair or replace your boiler no matter what. Warranties typically have terms and conditions attached to them.

All-in-all Vaillant represents excellent value for money. The company’s energy-efficient boilers are competitively priced and are proven to last around 15 years or more.

Show:
ModelTypeDimensionsMaximum Flow RateOutputEfficiency RatingTypical Price
ecoFIT Pure Regular 12RegularH - 600 mm
W - 375 mm
D - 295 mm
N/A12 kWA90% and above£730
ecoTEC Plus System 12SystemH - 720 mm
W - 440 mm
D - 338 mm
N/A12 kWA90% and above£730
ecoTEC Plus 415Heat OnlyH - 720 mm
W - 375 mm
D - 340 mm
N/A15 kWB86% - 90%£796.36
ecoTEC Plus 612SystemH - 720 mm
W - 440 mm
D - 335 mm
N/A12 kWB86% - 90%£826.12
ecofit pure system 12SystemH - 700 mm
W - 390 mm
D - 295 mm
N/A12 kWA90% and above£840
ecoFIT Pure Combi 25CombiH - 790 mm
W - 390 mm
D - 295 mm
14.1 l/min25 kWA90% and above£850
ecoFIT Pure Regular 15RegularH - 600 mm
W - 375 mm
D - 295 mm
N/A15 kWA90% and above£850
ecoTEC Plus System 15SystemH - 720 mm
W - 440 mm
D - 338 mm
N/A15 kWA90% and above£850
ecoTEC Plus 615SystemH - 720 mm
W - 440 mm
D - 335 mm
N/A15 kWB86% - 90%£863
ecoTEC Plus 418Heat OnlyH - 720 mm
W - 375 mm
D - 340 mm
N/A18 kWB86% - 90%£871.84
ecoTEC Pro 28CombiH - 720 mm
W - 440 mm
D - 335 mm
11.5 l/min28 kWB86% - 90%£875.88
ecoTEC Pro 24CombiH - 720 mm
W - 440 mm
D - 335 mm
9.4 l/min24 kWB86% - 90%£884.36
ecoTEC Pro Combi 24CombiH - 720 mm
W - 440 mm
D - 338 mm
12.3 l/min24 kWA90% and above£900
ecofit pure system 15SystemH - 700 mm
W - 390 mm
D - 295 mm
N/A15 kWA90% and above£950
ecoFIT Pure Regular 18RegularH - 600 mm
W - 375 mm
D - 295 mm
N/A18 kWA90% and above£950
ecoTEC Plus System 18SystemH - 729 mm
W - 440 mm
D - 338 mm
N/A18 kWA90% and above£950
ecoTEC Plus 618SystemH - 720 mm
W - 440 mm
D - 335 mm
N/A18 kWB86% - 90%£960.02
ecoTEC Plus 824CombiH - 720 mm
W - 440 mm
D - 335 mm
9.4 l/min24 kWB86% - 90%£964
ecoTEC Plus 428Heat OnlyH - 720 mm
W - 375 mm
D - 340 mm
N/A28 kWB86% - 90%£982.96
ecofit pure system 18SystemH - 700 mm
W - 390 mm
D - 295 mm
N/A18 kWA90% and above£1000
ecoFIT Pure Combi 30CombiH - 790 mm
W - 390 mm
D - 295 mm
14.1 l/min30 kWA90% and above£1000
ecofit pure system 25SystemH - 700 mm
W - 390 mm
D - 295 mm
N/A25 kWA90% and above£1050
ecoTEC Plus System 24SystemH - 720 mm
W - 440 mm
D - 338 mm
N/A24 kWA90% and above£1050
ecoTEC Plus 831CombiH - 720 mm
W - 440 mm
D - 335 mm
12.7 l/min31 kWB86% - 90%£1060.88
ecoTEC Plus 624SystemH - 720 mm
W - 440 mm
D - 335 mm
N/A24 kWB86% - 90%£1082.12
ecoFIT Pure Combi 35CombiH - 790 mm
W - 390 mm
D - 295 mm
14.1 l/min35 kWA90% and above£1100
ecoFIT Pure Regular 25RegularH - 600 mm
W - 375 mm
D - 295 mm
N/A25 kWA90% and above£1100
ecoTEC plus Combi 25CombiH - 440 mm
W - 720 mm
D - 338 mm
15.9 l/min25 kWA90% and above£1110
ecofit pure system 30SystemH - 700 mm
W - 390 mm
D - 295 mm
N/A30 kWA90% and above£1160
ecoTEC Plus 630SystemH - 720 mm
W - 440 mm
D - 335 mm
N/A30 kWB86% - 90%£1189.82
ecoTEC Plus System 30SystemH - 720 mm
W - 440 mm
D - 338 mm
N/A30 kWA90% and above£1200
ecoTEC Plus Storage 937SystemH - 720 mm
W - 440 mm
D - 597 mm
15.2 l/min37 kWB86% - 90%£1205.65
ecoTEC Exclusive 832CombiH - 800 mm
W - 480 mm
D - 450 mm
12.9 l/min32 kWB86% - 90%£1226.5
ecoFIT Pure Regular 30RegularH - 600 mm
W - 375 mm
D - 295 mm
N/A30 kWA90% and above£1250
ecoTEC plus Combi 32CombiH - 440 mm
W - 720 mm
D - 338 mm
15.9 l/min32 kWA90% and above£1250
ecoTEC plus Combi 32CombiH - 440 mm
W - 720 mm
D - 338 mm
15.9 l/min32 kWA90% and above£1250
ecoTEC Plus 637SystemH - 720 mm
W - 440 mm
D - 335 mm
N/A37 kWB86% - 90%£1257.41
ecoTEC Plus 837CombiH - 720 mm
W - 440 mm
D - 403 mm
15.2 l/min37 kWB86% - 90%£1273.92
ecoTEC Exclusive Green iQ System 27SystemH - 720 mm
W - 440 mm
D - 338 mm
N/A27 kWA90% and above£1300
ecoTEC Exclusive 838CombiH - 800 mm
W - 480 mm
D - 450 mm
15.2 l/min38 kWB86% - 90%£1305
ecoTEC Plus System 37SystemH - 720 mm
W - 440 mm
D - 338 mm
N/A37 kWA90% and above£1370
ecoTEC plus Combi 35CombiH - 440 mm
W - 720 mm
D - 338 mm
15.9 l/min35 kWA90% and above£1380
ecoTEC Pro Combi 28CombiH - 720 mm
W - 440 mm
D - 338 mm
12.3 l/min28 kWA90% and above£1400
ecoTEC Plus 438Heat OnlyH - 720 mm
W - 375 mm
D - 340 mm
N/A38 kWB86% - 90%£1430.27
ecoFIT Pure Regular 35RegularH - 600 mm
W - 375 mm
D - 295 mm
N/A35 kWA90% and above£1440
ecoTEC-plus-combi-38CombiH - 406 mm
W - 720 mm
D - 338 mm
15.9 l/min38 kWA90% and above£1500
ecoTEC Pro Combi 30CombiH - 720 mm
W - 440 mm
D - 338 mm
12.3 l/min30 kWA90% and above£1810
ecoTEC 46kW SystemSystemH - 800 mm
W - 480 mm
D - 450 mm
N/A46 kWA90% and above£2200
ecoTEC Plus 48kW SystemSystemH - 720 mm
W - 440 mm
D - 405 mm
N/A48 kWA90% and above£2200
ecoTEC Plus 64kW SystemSystemH - 720 mm
W - 440 mm
D - 473 mm
N/A64 kWA90% and above£2600
ecoTEC 65kW SystemSystemH - 800 mm
W - 480 mm
D - 472 mm
N/A65 kWA90% and above£2800
(average prices descending and including VAT)

Why You Can Trust Boilers Prices

Boiler Prices were established in 2013 to help UK consumers how to identify the best boiler for your home. We also give you access to local suppliers that can offer the most affordable quotes. And all this from a central location so that you don’t have to waste time shopping around. 

Moreover, the information we publish on our website is sourced from UK consumers, magazine writers and frontline industry professionals who work day-in-day-out with boilers. 

What’s more, Boiler Prices does not have any direct affiliation with Vaillant or any other boiler manufacturer. The information we present is 100% unbiased, impartial and given to the best of our knowledge. 

We appreciate that UK homeowners want to know if these new energy-efficient boilers are reliable, efficient and available for a good price. Boiler Prices not only step in to provide information you can trust, but we also save you hours having to research the extensive boiler market.

For the best and most cost-effective boiler prices, you will have to do some shopping around. We recommend getting a quote from a national installer and a local boiler installer to see which gives you the best price. When you use Boiler Prices as your platform to look for boiler prices this is what we provide you with as a matter of course.

Boiler Prices have been providing UK homeowners with trustworthy information and boiler price comparisons since 2013. Not only that but our founder, Duncan Cumming has over a decade of experience in the boiler industry working directly with consumers. He is fully aware that reliable information needs to be improved in the boiler market and knows the questions homeowners want answered. 

All these factors make Boiler Prices the most trusted source of information about energy-efficient boilers – because we provide up-to-date and accurate information together with honest appraisals that say it how it is. 

Get a Free Vaillant Boiler Quote

Sources:

https://www.which.co.uk/reviews/boilers/article/best-boiler-brands-for-2023/vaillant-boilers-review-amem85U0t5VJ

https://www.vaillant.co.uk/homeowners/products/gas-boiler-range/

16 reviews for Vaillant Boilers: Prices, Reviews and Boiler Ranges

What Customers Are Saying

Rated 5.0 out of 5
2 April 2020

No Title

I have had a Vaillant EcoTec pPlus 831 for nearly 14 years. Apart from breaking down once about 9 years ago it has been faultless , efficient and quiet. As I have thermostatic valves on all but one radiator I was advised to keep the heating temperature on maximum so that is what it is set at. I an thinking of getting it replaced soon before it starts giving me trouble with the same boiler.

John Morton
Rated 1.0 out of 5
1 November 2019

No Title

Don’t agree with Vailant being a good boiler, I have an ecotec 418 and the temperature control is crap, it sits at 55oC then does nothing, other times it’s only 5oC away from the target temperature and fires up so hard it trips on high temperature…….the temperature control on this boiler is archaic / abysmal…..I u derstamd process temperature control and this is brutal and ineffective, will NOT buy vailiant ever again…

Steve Jones
Rated 3.0 out of 5
12 January 2017

No Title

Valiant boiler bought new when we moved into new house 5 years ago simply the worst product I have ever bought repairs required every winter and now looking to cut my losses and replace with a bosch valiant total rubbish

Whitelaw
Rated 3.0 out of 5
4 January 2017

No Title

I would like to replace my 831 eco tec plus combi( about 12 years old) with a boiler that will fit on the same flow and pipe work

keith long
Rated 3.0 out of 5
31 October 2016

No Title

We need gas fired boiler

31 kW 4 mos

34 kw 2 nos

37 kw 4 nos

Fan coil units

47 nos units required 6 to 9 kw

All things required European brand

Asad