Vaillant Boiler Prices and Reviews 2018

Vaillant is one of the UK’s leading boiler manufacturers. Its boilers are reliable, energy efficient and long-lasting.

Vaillant make combi, conventional and system gas boilers that cost between £670 and £3,000, depending on their size.

Vaillant has received excellent feedback from both its customers and boiler engineers, earning it a place on our list of the top 5 boiler brands.



Vaillant Boiler Prices

Vaillant manufacture upwards of 30 boilers in combination ('combi'), conventional and system models. Its boilers come in a range of sizes from 12kW up to a huge 65kW, designed to meet the heating and hot water demands of different sized homes. The price of Vaillant boilers typically range from around £800 up to £1,500, but can cost up to £3,000 for very large boiler models. As a rule of thumb, the bigger the Vaillant boiler you need, the more it will cost.

The table below shows you the size and price range of Vaillant combi, conventional and system boilers currently available:

Boiler Type
Size (kW)
Price Range
Combi
25 to 48
£850 to £2,520
Conventional
12 to 35
£670 to £1,400
System
12 to 65
£800 to £3,000


These prices are for the boiler only; they exclude installation costs. Installation typically costs between £500 and £1,500, depending on the complexity of the job. For example, changing from one type of boiler to another, changing the location of your boiler, or moving and adding pipes will all drive up the cost. To get more information about the cost of boiler installation, visit our new boiler cost page.

Read on to get more information about how much combi, conventional and system boilers cost from Vaillant.


What Size Vaillant Boiler Do You Need?

The boiler size that will be right for your home will depend on a number of factors, including how many bathrooms, taps and radiators your property has. As a rough guide, you’ll need:

  • For a home with 1 bathroom and up to 10 radiators: 24kW to 27kW boiler
  • For a home with 1 or 2 bathrooms and up to 15 radiators: 28kW to 34kW boiler
  • For a home with 2 or more bathrooms and up to 20 radiators: 35kW to 42kW boiler

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    Vaillant Combi Boiler Prices

    A combination, or ‘combi’, boiler heats water directly from the mains when you turn on a tap or switch on your central heating. This means that unlike a conventional or system boiler, you won’t need a separate hot water cylinder or a cold water tank stored in your loft or the upper levels of your home.

    Vaillant make a wide have a range of combi boilers that start from £850 and increase to £2,520. The company's combi boilers come in the the ecoFIT pure, the ecoTEC plus, the ecoTEC pro and the ecoTEC exclusive Green iQ models.

    The table below shows you the price of Vaillant’s most popular combi boilers, as well as their size, energy efficiency and warranty period:

    Model
    Size (kW)
    Efficiency
    Standard Warranty
    Price
    ecoFIT pure 825
    25
    89%
    2 years
    £1,100
    ecoFIT pure 830
    30
    89%
    2 years
    £1,100
    ecoTEC exclusive Green iQ 835
    35
    89.7%
    5 years
    £850
    ecoTEC plus 825
    25
    89.3%
    5 years
    £850
    ecoTEC plus 838
    38
    89.3%
    5 years
    £1,330
    ecoTEC pro 24kW
    24
    89.3%
    2 years
    £930
    ecoTEC pro 28kW
    28
    89.3%
    2 years
    £1,000


    Interested in Vaillant Combi Boilers?

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    Vaillant Conventional Boiler Prices

    A conventional boiler, also known as a heat-only or regular boiler, needs both a hot water cylinder and a cold water tank to feed hot water to your radiators and taps/shower. These will both need to be stored in your loft or the upper levels of your property.

    Vaillant make conventional boilers in the ecoFIT pure and the ecoTEC plus model, that range in size from 12kW up to 35kW. The cost of Vaillant conventional boilers starts from £670 and goes up to £1,400.

    The table below shows you the cost of popular Vaillant conventional boilers, and includes their size, efficiency and warranty period.

    Model
    Size (kW)
    Efficiency
    Standard Warranty
    Price
    ecoFIT pure 418
    18
    89%
    2 years
    £850
    ecoFIT pure 425
    25
    89%
    2 years
    £875
    ecoFIT pure 435
    35
    89.7%
    2 years
    £1,100
    ecoTEC plus 415
    15
    88.7%
    5 years
    £800
    ecoTEC plus 424
    24
    89.2%
    5 years
    £950
    ecoTEC plus 430
    30
    89.2%
    5 years
    £1,075
    ecoTEC plus 435
    35
    89.2%
    5 years
    £1,400


    Interested in Vaillant Conventional Boilers?

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    Vaillant System Boiler Prices

    A system boiler heats water directly from the mains when you turn on your central heating, warming your radiators. However, when you turn on your hot water tap or shower, the hot water from your boiler is first pumped through a hot water cylinder which must be stored in your loft or upper levels of your home.

    Vaillant manufacture a range of system boilers in the ecoFIT pure, the ecoTEC plus, and the ecoTEC exclusive Green iQ models. Vaillant system boiler prices start from £800 and increase to £3,000.

    The table below shows you the price of some of Vaillant’s most popular system boilers, including their size, efficiency and warranty period.

    Model
    Size (kW)
    Efficiency
    Standard Warranty
    Price
    ecoFIT pure 618
    18
    89%
    2 years
    £950
    ecoFIT pure 625
    25
    89%
    2 years
    £1,000
    ecoFIT pure 630
    30
    89.3%
    2 years
    £1,200
    ecoTEC exclusive Green iQ 627
    27
    89.6%
    5 years
    £850
    ecoTEC plus 618
    18
    89.3%
    5 years
    £990
    ecoTEC plus 624
    24
    89.4%
    5 years
    £1,050
    ecoTEC plus 630
    30
    89.4%
    5 years
    £1,150


    Interested in Vaillant System Boilers?

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    Vaillant Boiler Reviews

    Vaillant boilers have an excellent reputation among their customers and boiler engineers. At the time of writing, Vaillant has 8.7/10 rating on Trustpilot, based on over 4,000 reviews. Of the thousands of customers who left feedback, a huge 72% rated the company as ‘excellent’, while only 10% had a ‘poor’ to ‘bad’ experience with them. Many customers have praised the quality of Vaillant’s boilers and their helpful engineers and support team.

    “Fantastic boiler, great service and longer guarantee. What else can a customer ask for.”

    Review left by a Vaillant customer on Trustpilot, 30th August 2018

    In May 2017, Which? conducted a survey of more than 12,000 boiler owners and asked them about their boiler, how satisfied they are with it, and whether it has suffered any faults or breakdowns. The charity also asked 166 trusted boiler engineers what they thought of Vaillant and whether’ they’d recommend Vaillant boilers to customers. Based on feedback from customers and engineers, Which? awarded Vaillant with an impressive brand score of 78%.

    Because of Vaillant’s positive feedback, the company has made it onto our list of recommended boiler manufacturers, scoring 4 out of 5 overall. Visit our review of the best boiler brands to find out more.

    Review Source
    Score*
    Trustpilot
    8.7/10
    Which?
    78%
    The Eco Experts


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    Vaillant vs. Competitors

    While Vaillant is one of the best boiler manufacturers in the UK, there are a number of other brands that are worth considering. Worcester Bosch, Viessmann, Grant and Ideal also feature alongside Vaillant in our list of the top 5 boiler manufacturers. Below is a quick rundown of the scores these companies have received from Trustpilot, Which? and us.

    Brand
    Trustpilot Score*
    Which? Score*
    The Eco Experts Score*
    Grant
    9.5/10
    80%
    Ideal
    5.6/10
    58%
    Viessmann
    8.3/10
    84%
    Worcester Bosch
    9.1/10
    92%


    As you can see, these boiler brands have scored similarly to Vaillant across the board, with Worcester Bosch and Grant receiving slightly higher scores than Vaillant from TrustPilot and Which?, while Viessmann was scored better by Which?. Ultimately the brand you choose - whether it’s Vaillant or one of its competitors - will come down to who offers the best boiler for your home and budget.

    To get a quote for a new boiler from trusted boiler installers in your area, just fill in this short contact form to arrange a free home assessment.


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    How Do You Buy a Vaillant Boiler?

    Selecting the right boiler is an individual scenario and best assessed by a heating engineer to ensure you purchase the right type.

    Vaillant encourage potential customers to join their installer loyalty scheme, Advance. This way you are given access to their network of fully trained, independent installers who can offer you exclusive extended guarantees, as well as a free no obligation quote to assess which Vaillant boiler you need.

    You can begin this process by going to their website and filling out the relevant contact form.

    Get a Free Quote for a Vaillant Boiler

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