Eco Happy (Solar Expert)

Published February 8, 2024

Cost of Vaillant Boilers

Are you considering a new boiler for your home and looking for a brand that offers reliability, efficiency, and excellent customer service? Vaillant boilers are a popular choice in the UK, known for their high-quality components and energy efficiency.

In this expert post, we’ll explore the Vaillant boiler price and installation process to help you make an informed decision.

Vaillant Boiler Cost – Summary

  • Vaillant boilers range in price from £740 to £2,850 depending on the model and features.
  • Professional installation is essential for efficiency, safety, and durability, with costs varying by location and complexity.
  • Vaillant offers high-quality components, energy efficiency & vSMART technology, plus warranties of up to 10 years.

Vaillant Boiler Price Breakdown

Obviously, the price of a Vaillant boiler is one of the most important things to consider, as you don’t want to be paying a lot of money for a boiler that doesn’t suit your needs.

When it comes to Vaillant boilers, the prices vary depending on the model and type you choose. Ranging from £740 to £2,850 for the boiler alone, the cost depends on whether you opt for a combi boiler, system boiler, or regular boiler.

Each type has its advantages and is suitable for different homes and heating requirements.

It’s advisable to collect estimates from various boiler engineers to secure the most suitable deal for your finances.

Keep in mind that these prices are for the boiler unit only and do not include installation fees. For a complete cost, including installation and necessary parts, you can expect to pay around £2,200 for the base ecoTEC model.

Cost of Vaillant Combi Boilers

Vaillant combi boilers are highly popular in the UK due to their compact size, cost-effective installation, and efficient delivery of hot water and heating.

They boast over 90% efficiency and heat water directly from the mains, which means there is no need for a separate cold water tank. Their prices range from £850 to £1,855 for the boiler unit.

The Vaillant combi boiler range includes three main series: the EcoFIT Pure, EcoTEC Plus, and EcoTEC Pro. Each series offers unique features and advantages, catering to different homeowner needs and preferences. We will examine each series in detail to aid you in making a comprehensive comparison.

EcoFIT Pure Series

The EcoFIT Pure series offers compact and efficient combi boilers, with prices starting at £850. These boilers have an efficiency rating of 94% for optimal performance.

This series, designed for the heating industry, includes the ecoFIT Pure System, ecoTEC Plus System models, and heat pumps, providing suitable options for various household sizes and heating requirements.

EcoTEC Plus Combi Models

EcoTEC Plus combi models from Vaillant are versatile and suitable for various home sizes. They offer four combi models with heating outputs of 25, 32, 35, or 38kW. These flagship boilers boast higher specifications than other models, such as the EcoTEC Pro.

Some key features of the EcoTEC Plus combi models include:

  • High efficiency and performance
  • Automatic adjustment to different gas types and qualities for clean and efficient combustion
  • IoniDetect technology for safe operation
  • Compact design and dimensions
  • Easy installation and servicing
  • Reliable and durable construction

Prices for the EcoTEC Plus combi models range from £1,150 to £1,870.

The flexibility and versatility of the EcoTEC Plus Combi models make them suitable for various home sizes. They can provide hot water and heating for both small and large homes, including properties with 3-4 bedrooms.

The integrated hot water storage also guarantees a steady supply of hot water, proving to be an ideal solution for varying household sizes.

EcoTEC Pro Combi Options

EcoTEC Pro combi options provide simple and adjustable controls for homeowners, with prices starting at around £1,000. These boilers are designed for efficient heating and hot water delivery, with models available in the following outputs:

  • 25kW
  • 32kW
  • 35kW
  • 38kW

The adjustable controls and excellent performance make the EcoTEC Pro combi options a great choice for those seeking an easy-to-use and efficient boiler.

Vaillant System Boiler Price

Vaillant system boilers are more suitable for larger homes that require a higher demand for hot water. These boilers work with a separate hot water cylinder to store and deliver hot water, making them ideal for properties with multiple bathrooms or high hot water demands.

Vaillant system boilers range in price from £700 to £3,000, depending on the model and features.

The Vaillant system boiler range includes the ecoFIT pure, ecoTEC plus, and ecoTEC exclusive Green iQ models, with prices ranging from £800 to £3,000.

These boilers can accommodate various household sizes and heating requirements, ensuring that you find the perfect fit for your home.

Vaillant Regular Boiler Cost

Vaillant gas boilers, specifically their regular and system boilers, provide central heating and hot water for larger properties.

Regular boilers, also known as open vent or heat-only boilers, work with a separate hot water cylinder and a cold water storage tank, making them suitable for homes with higher hot water demands—prices for Vaillant regular boilers, not including installation, range from £740 to £1,550.

When comparing Vaillant regular boilers to other similar boiler brands, you’ll find that they are competitively priced.

The cost of a Vaillant regular boiler with complete installation by certified gas engineers can range from £2,100 to £3,000, depending on the model and features.

Vaillant Boiler Installation

Another important step is the Vaillant boiler installation, which requires a gas-safe certificate to be completed legally. Don’t worry, though, as all engineers from an installation company should have this certification, so you can have peace of mind about your boiler being fitted.

The cost of Vaillant boiler installation can vary depending on factors such as location, boiler type, and the complexity of the job. Prices start at around £1,500 for a fully installed boiler, but it’s advisable to collect estimates from various installers to secure the most suitable deal for your finances.

Installing a Vaillant boiler can take anywhere from a few hours to a few days, depending on the complexity of the job. Each installation is unique and requires careful consideration when determining the duration.

A straightforward combi replacement job can typically be completed within half a day. Remember, professional installation is paramount for the efficiency, safety, and durability of your new Vaillant boiler.

Why Choose a Vaillant Boiler?

Clearly, Vaillant isn’t the only boiler brand in the UK, so you are probably wondering, “Why should I choose Vaillant over other manufacturers?”.

Well, firstly, Vaillant boilers are a popular choice due to their high-quality components, energy efficiency, and excellent customer service.

With a 4.5 out of 5 rating on Trustpilot and 90% of ratings being Excellent or Great, Vaillant boilers have proven their reliability and customer satisfaction.

Moreover, Vaillant boilers have been recognised with the Which? ‘Best Buy’ designation and achieved top scores in nearly all categories of the Which? annual boiler survey. Handmade Vaillant boilers allow for closer inspection and higher quality control, which results in a more dependable and energy-efficient boiler.

Beyond their stellar reputation as a top boiler brand, modern Vaillant boilers present a series of innovative features, such as the vSMART technology, which allows homeowners to manage their new boiler remotely through a smartphone.

With a wide range of models available, there’s a Vaillant boiler to suit every home and heating requirement.

Vaillant Boiler Warranties

Making sure your boiler is constantly running and is as efficient as possible will be a priority, and a boiler warranty can help keep you covered if your boiler was to break down.

Vaillant boiler warranties range from 2 to 10 years, depending on the model and installation by an advanced installer. This offers peace of mind to homeowners, knowing that their investment in a new Vaillant boiler is protected.

The typical warranty period for Vaillant boilers is 2-5 years for both parts and labour. That’s a remarkable advantage! This warranty provides an added layer of assurance and protection for your new heating system.

However, be mindful that Vaillant warranty only covers issues deemed to be related to the boiler manufacturer, so any breakdowns connected to misuse of the boiler won’t be protected.

Vaillant Boilers – Our Verdict

We hope this guide has helped you learn more about Vaillant boilers and that Vaillant boilers are a reliable and efficient choice for homeowners seeking a high-quality heating solution. With a wide range of models, prices, and installation options available, there’s a Vaillant boiler to suit every home and budget.

By understanding the different types, features, and costs associated with Vaillant boilers, you can make an informed decision on the right boiler that meets your specific needs and brings comfort to your home for years to come.


How much does a Vaillant boiler cost?

Vaillant combi boilers start at around £850 for their ecoFIT Pure 25kW and go up to their powerful ecoTEC Plus 38kW, which costs around £1,500. Conventional boiler prices range from £740 (boiler only) up to £1,550, and prices including installation start from £2,100.

How much is a new boiler 2023 UK?

A new gas boiler in the UK will cost around £2,500 on average, including installation.

How long does a Vaillant boiler last?

A Vaillant boiler is designed to last between 10 to 15 years with annual servicing and regular maintenance. The actual lifespan depends on the manufacturer, service and maintenance.

What is the efficiency rating of Vaillant boilers?

Vaillant boilers have an efficiency rating of Grade A, with over 90% efficiency.

What is the warranty duration for Vaillant boilers?

Vaillant boiler warranties range from 2 to 10 years, depending on the model and installation.

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