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Compare Vaillant Boilers Prices & Reviews

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Vaillant’s award-winning combi, system and open vent boilers are renowned for their reliability, performance and efficiency.

Each domestic Vaillant boiler has high quality parts and components, backed up by warranties for total peace of mind. The ecoTEC Plus and ecoTEC Exclusive ranges also provide five-year parts and labour warranty as standard.

Whatever your central heating and hot water needs, there’s a boiler to suit you and your budget.

Vaillant boiler types: CombiRegularSystem

The range of Vaillant boilers are available in the following fuel types: Gas


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Vaillant Combi Range & Prices

Vaillant ecoTEC exclusive 832 Combi Gas BoilerCombination boilers or ‘combi’ boilers are the most popular type of boiler in the UK.

These space saving boilers don’t require a hot water cylinder or a tank and offer various outputs across three ranges:

  • ecoTEC Plus combi boilers
  • ecoTEC Exclusive combi boilers
  • ecoTEC Pro combi boilers

Benefits of a Combi Boiler

  • No need for a hot water storage tank or lots of pipework
  • Straightforward to install and cost effective for repairs too
  • Provides your hot water on demand so you’re not limited by a tank size
  • An energy efficient choice as you only heat the water you actually need

Compare the Costs of Combi Boilers

Vaillant offer a range of combi boilers at various price points so you are sure to find the right boiler to fit your budget. Make sure it’s the right size and specification for your hot water and heating demands – and for the best deal, we suggest you get quotes from up to three trusted boiler installers.

Review the complete range of Vaillant Gas Combi boilers prices…

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Vaillant ecoTEC plus 825 Combi Gas Boiler 25kw 89.3% 5 years £1075
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Vaillant ecoTEC exclusive 832 Combi Gas Boiler 32kw 89.3% 3 years £1270
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Vaillant ecoTEC Pro 28 kW Combi Gas Boiler 28kw 89.3% 2 years £1000
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Vaillant ecoTec plus 937 Combi Gas Boiler 37kw 89.3.% 5 years £1400
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Vaillant EcoTEC Exclusive 32kW Combi Gas Boiler 32kw 89.8% 5 years £1270
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Vaillant EcoTEC Exclusive Green IQ 835 Combi Gas Boiler 35kw 94% 5 years £1485
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Vaillant ecoTEC Pro 30kW combi Gas boiler 30kw 89.3% 2 years £1050
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Vaillant EcoFIt sustain 825 Combi Gas Boiler 25kw 89.3% 5 years £875
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Vaillant EcoFIt sustain 830 Combi Gas Boiler 30kw 89.3% 5 years £986
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Vaillant EcoFIt sustain 835 Combi Gas Boiler 35kw 89.3% 5 years £1094
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Vaillant ecoTEC plus 832 Combi Gas Boiler 32kw 89.3% 5 years £1200
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Vaillant ecoTEC plus 835 Combi Gas Boiler 35kw 89.3% 5 years £1250
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Vaillant ecoTEC plus 838 Combi Gas Boiler 38kw 89.3% 5 years £1355
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Vaillant ecoTEC Pro 24 kW Combi Gas Boiler 24kw 89.3% 5 years £930
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Vaillant EcoTEC Exclusive Green IQ 843 Combi Gas Boiler 43kw 94% 5 years £1750
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Vaillant EcoFIT pure 825 Combi Gas Boiler 25kw 89% 5 years £875
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Vaillant EcoFIT pure 830 Combi Gas Boiler 30kw 89% 5 years £1050
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Vaillant EcoFIT pure 835 Combi Gas Boiler 35kw 89% 5 years £1279
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Vaillant EcoTEC plus 938 Combi Gas Boiler 38kw 89.3% 5 years £1510
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Vaillant Home 25kW Combi Gas Boiler 25kw 89.3% 2 years £875
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Vaillant Home 30kW Combi Gas Boiler 30kw 89.3% 2 years £1010
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Vaillant Home 35kW Combi Gas Boiler 35kw 89.3% 2 years £1234
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Vaillant EcoTEC Plus 48kW System Gas Boiler 48kw 94% 5 years £2520
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Vaillant Regular Range & Prices

Vaillant ecoTEC plus 438 Regular Gas BoilerChoosing a new boiler can be daunting, especially if the existing boiler has been in place for years.

Boilers have changed significantly in the last decade and are more energy efficient than ever before.

Vaillant offer the ideal solution for older properties with their Regular boiler range.

These are the perfect modern-day replacement for your older boiler and should be close to like-for-like in terms of design and pipework, but with the benefits of a new system.

Benefits of a Regular boiler

  • Older property? This is an ideal replacement as the pipework will be similar
  • It’s fine to use more than one tap at the same time
  • Works well with an electric immersion heater as a hot water back-up
  • Can be used with solar thermal panels to heat your water

Vaillant Regular boiler prices

Investing in a new boiler is a large expense, however the good news is that the latest models are more energy efficient so you’ll save on your energy bills in the long term.

The price of your new boiler will depend on the size of your property so check out the specification for each model.

Compare the complete range of Vaillant Gas Regular boilers prices…

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Vaillant ecoTEC plus 435 35kW Regular Gas Boiler 35kw 89.20% 5 years £1430
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Vaillant ecoTEC plus 415 15kW Regular Gas Boiler 15kw 88.70% 5 years £800
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Vaillant ecoTEC plus 430 Regular Gas Boiler 30kw 89.3% 5 years £1070
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Vaillant ecoTEC plus 424 24kW Regular Gas Boiler 24kw 89.3% 5 years £950
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Vaillant ecoTEC plus 412 Regular Gas Boiler 12kw 89.3% 5 years £800
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Vaillant ecoTEC plus 418 Regular Gas Boiler 18kw 89.3% 5 years £870
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Vaillant Home 12kW Regular Gas Boiler 12kw 89.4% 2 years £0
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Vaillant Home 15kW Regular Gas Boiler 15kw 89.4% 2 years £0
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Vaillant Home 18kW Regular Gas Boiler 18kw 89.4% 2 years £0
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Vaillant Home 25kW Regular Gas Boiler 25kw 89.4% 2 years £0
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Vaillant Home 30kW Regular Gas Boiler 30kw 89.4% 2 years £0
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Vaillant ecoFIT pure 12kW Regular Gas Boiler 12kw 89.3% 2 years £730
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Vaillant EcoFIT Pure 15kW Regular Gas Boiler 15kw 89.1% 2 years £765
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Vaillant EcoFIT Pure 18kW Regular Gas Boiler 18kw 89% 2 years £790
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Vaillant EcoFIT Pure 25kW Regular Gas Boiler 25kw 89% 2 years £850
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Vaillant EcoFIT Pure 30kW Regular Gas Boiler 30kw 89.3% 2 years £980
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Vaillant EcoFIT Pure 35kW Regular Gas Boiler 35kw 89.7% 2 years £1080
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Vaillant System Range & Prices

Vaillant ecoTec plus 612 System BoilerModern home owners love the Vaillant System range of boilers as they’re designed for the way we live today.

When space is at a premium, who wants to find room for a bulky cold water storage tank? And if you’re lucky enough to have a loft conversion, there’s no room for it up there either.

The Vaillant System range is the ideal solution for lots of reasons.

Benefits of a System boiler

  • Many heating components are built-in, so installation is easy
  • No need for a cold water feed tank means it’s ideal for smaller homes or those without loft space
  • Thinking of using solar to heat water? A system boiler is compatible
  • Serves multiple taps simultaneously without reducing water pressure or temperature

Vaillant System boiler prices

There are plenty of options in the Vaillant System range of boilers so you should be able to find something that ticks your boxes in terms of heating and water requirements but doesn’t blow the budget either. Click on the individual models to find out more about the specification for each boiler, and then request three quotes for the installed cost.

Review the complete range of Vaillant Gas System boilers prices…

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Vaillant ecoTec plus 612 System Gas Boiler 12kw 89.0% 5 years £850
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Vaillant ecoTec plus 615 System Gas Boiler 15kw 89% 5 years £900
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Vaillant ecoTec plus 618 System Gas Boiler 18kw 89.3% 5 years £985
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Vaillant ecoTec plus 624 System Gas Boiler 24kw 89.4% 5 years £1120
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Vaillant ecoTec plus 630 System Gas Boiler 30kw 89.4% 5 years £1180
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Vaillant ecoTec plus 637 System Gas Boiler 37kw 89.2% 5 years £1350
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Vaillant ecoFIT pure 612 system Gas boiler 12kw 89.3% 5 years £820
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Vaillant ecoFIT pure 615 system Gas boiler 15kw 89.1% 5 years £880
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Vaillant ecoFIT pure 618 system Gas boiler 18kw 89% 5 years £950
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Vaillant ecoFIT pure 625 system Gas boiler 25kw 89% 5 years £1175
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Vaillant ecoFIT pure 630 system Gas boiler 30kw 89.3% 5 years £1256
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Vaillant ecoTEC exclusive Green iQ 627 System Gas Boiler 27kw 94% 7 years £1370
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Vaillant EcoTEC 65kW System Gas Boiler 65kw 95.5% 2 years £3000
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Vaillant EcoTEC 46kW System Gas Boiler 46kw 95.8% 2 years £2400
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Vaillant EcoTEC Plus 64kW System Gas Boiler 64kw 94% 5 years £0
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Vaillant Home 12kW System Gas Boiler 12kw 89.4% 2 years £0
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Vaillant Home 15kW System Gas Boiler 15kw 89.4% 2 years £0
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Vaillant Home 18kW System Gas Boiler 18kw 89.4% 2 years £0
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Vaillant Home 25kW System Gas Boiler 25kw 89.4% 2 years £0
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Vaillant Commercial Boilers

Vaillant has been established for over 130 years and places a strong focus on innovation. As well as boilers and heating systems, the company manufactures air conditioning and ventilation systems.

Their commercial boilers include the ecoTEC wall hung, the ecoCRAFT floor standing and the atmoCRAFT atmospheric floor standing gas boiler range.

The ecoTEC range is available in outputs of:

  • 46kW and 65kW and all models are ERP (Energy Related Products) Band ‘A’ rated
  • the ecoCRAFT is available in 6 output options up to 280kW, and exceeds the Building Regulations Part L2A and L2B
  • atmoCRAFT atmospheric boilers, which come in 8 output options up to 165 kW, meet part L2 of the Building Regulations requirements

They are designed to keep emissions to a minimum and feature an easy to use, advanced diagnostic display.

Vaillant sets strict standards regarding environmental awareness, and ensures that the design of all its products takes into account the subsequent recycling or eventual safe scrapping of every component used.

The company also offers a good level of customer service, with separate phone lines dedicated to technical enquiries, sales enquiries and boiler service enquiries.

Vaillant Boiler Warranty

Every boiler manufacturer offers a standard warranty with their boilers which last between 1-10 years. The warranty is your insurance policy and means if a fault develops the manufacturer will resolve it within a specified time frame. Some warranties include both parts and labour while others may only cover parts. The most important thing to remember is to get your boiler serviced by a Gas Safe registered engineer every year as failing to do so is likely to invalidate your warranty. For more detail about this brand’s warranty (including the small print) take a look at Vaillant Boiler Warranty.

Vaillant Boiler Repairs

Even the highest quality boiler can develop faults and problems as they age. Some are minor issues you may be able to handle yourself but most will need a Gas Safe registered engineer to diagnose and repair the problem. To find out if there are any common problems associated with this manufacturer you can read our guide to Vaillant Boiler Repairs & Common Vaillant Boiler Problems.

Vaillant Error Codes

Error codes may appear on your boiler’s display; it’s your boiler’s way of telling you that something is wrong. Each manufacturer uses a different coding system to help an engineer to diagnose a fault. In some cases it may be a simple issue such as low pressure which you can adjust yourself but more technical faults will certainly need a professional. We’ve put together a list of error codes for all Vaillant Boilers to help you understand what’s wrong before you contact an engineer.

Vaillant Reviews

Hundreds of thousands of Vaillant boilers are installed each year in the UK and for good reasons, they make affordable, highly efficient and reliable boilers.

Boiler Guide customers and installers, in general rate them highly.

“I heat a 4 bedroom property with a Vaillant ecotec pro 28; it provides instant hot water too. Don’t know why the inf says it’s suitable for a small property; it does the job just fine. And my bills have dropped by £40 a month since it was installed.”

“As both an installer and customer,I like the Vaillant eco tec pro 28,it is good to install,it is a reliable boiler and I like working with them on the whole. Ok one or two things that I would like to see change for example the condensate and blow off pipe are a bit too close for my liking but other than that a good reliable piece of kit.I have one in my house so I would say that is pretty good recommendation.”

Vaillant in the Forum & Articles Section


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