Vaillant Boiler Prices 2025

Considering a Vaillant boiler for your home? If so, you’ve come to the right place. Vaillant boilers are some of the best heating systems on the market, offering powerful heating and high-quality hot water to many different properties.



Whether you’re looking for a Vaillant combi, regular or system boiler, you’re sure to find a suitable solution for your home and needs. Continue reading our comprehensive guide to find out all there is to know about Vaillant boiler prices.

Who is Vaillant?

Part of the wider Vaillant Group, Vaillant UK is one of the most popular domestic boiler brands in the industry. The organisation has been active for over 140 years, originally founded by Johann Vaillant in 1874. Recognised as the second-largest European manufacturer in its sector, the company has a presence in over 20 countries and a commendable reputation across 60 states. It even pioneered the production of the combi boiler back in the 1960s.

Vaillant is a family-run German company that has sites across the UK as well as, France, Italy, Spain, Turkey, Slovakia, Turkey and China. They’re also actively involved other industries such as ventilation and air-conditioning. Vaillant aims to provide customers with energy-efficient, innovative, high-quality heating systems that they can rely on for years to come. They manufacture a range of heating systems, including everything from gas boilers to heat pumps, hybrid systems and renewable technologies.



With over a century’s experience in the industry, Vaillant is a brand that you can trust. They’re dedicated to innovation and sustainability, so you can guarantee that any product you purchase from the brand will be able to meet and exceed your needs.

Vaillant Gas Boilers

To suit the needs of every home, Vaillant have diverse selection of gas boilers. This includes a range of high-quality and energy-efficient combi, regular and system boilers. All of the boiler systems manufactured by Vaillant are A-rated for energy efficiency and designed to offer excellent heating and hot water. Below we break down some of the different boiler types offered by Vaillant and the ranges within them.

The combi boilers that the brand offer include:

• ecoTec plus – The perfect all- rounder for every property
• ecoTEC exclusive – Premium and efficient, equipped with Green iQ
• ecoTEC plus combi store – Ideal for larger properties
• ecoTEC pro – A suitable solution for midsized homes
• ecoFIT pure – Compact and highly efficient

Vaillant also offer the following regular/open-vent boilers:

• ecoTEC plus regular – Compact and suitable for a variety of homes and needs
• ecoFIT pure regular – Designed to be efficient, high-quality and flexible

Vaillant’s system boilers feature:

• ecoTEC plus system – Smart home ready and hydrogen prepared
• ecoTEC exclusive system – Offering high performance, control and efficiency
• ecoTEC plus system – (discontinued) Offered flexibility and quality heating
• ecoTEC plus 48 and 64kW – Compact yet powerful, perfect for large properties
• ecoFIT pure system – An innovative and compact solution 

correct and accurate as of 11-01-2025

Vaillant Boiler Prices

A Vaillant Boiler with full installation will cost between £2,000 and £5,500.

When choosing a new boiler, you’ll want to consider the different costs of getting one installed to ensure that you don’t break your budget. Vaillant boiler prices can vary depending on the type of boiler you choose, the size and model, as well as the complexity of the installation process.

Want a personalised estimate for your new Vaillant boiler? Try our free boiler quote tool today to get a free fixed-price quote for your installation.

correct and accurate as of 11-01-2025

Vaillant Combi Boiler Prices

A Vaillant Combi boiler will cost between £2,000 and £5,000 including full installation.

Vaillant combi boilers are some of the best on the market. Designed to offer excellent heating and efficient hot water, these compact systems can meet all your needs in one single unit. There’s no need for any extra tanks or cylinders, helping you save space and make the most of your home. They even deliver hot water instantaneously.

When it comes to Vaillant combi boiler prices, the cost of getting one installed into your property will depend on the model and size you select. Any extra parts and labour like pipework modifications and scaffolding will also come at an extra cost. In general, the starting cost of a Vaillant combi boiler is around £835 for the system itself. The total installation cost start at around £2,335 – this is for a standard 25 kW ecoFIT pure combi.

If you’re in need of a larger system for higher heating and hot water demands, you could get an ecoTEC exclusive 43kW for approximately £1,699 (boiler only). The total installation is likely to cost around £3,199.

Want a bespoke estimate for Vaillant combi boiler prices? Try our free online boiler quote today.

correct and accurate as of 11-01-2025. Published boiler only prices with guide installation price of £1,500

Vaillant Regular / Conventional / Heat Only boiler prices

A Vaillant conventional boiler will cost between £2,000 and £5,500 including installation.

Another popular type of Vaillant gas boiler is the regular boiler. These systems feature an additional hot water cylinder and cold water tank to store your water and ensure it gets delivered to multiple taps at once. These systems are the traditional type of heating in the UK, and they are particularly common in medium to large homes.

Vaillant regular boiler prices can vary, and like combi systems the total costs is affected by the model and size you need. For example, an ecoFIT pure regular 12 kW can cost around £692 for the boiler itself. Meanwhile, its installation is likely to set you back approximately £2,192.

In need of a large Vaillant regular boiler? You could opt for and ecoTEC plus regular 35kW system, which costs around £1,539 on its own. The installation is estimated to cost around £3,039.

If you want to get a personalised estimate for your Vaillant regular boiler installation, try our free online boiler quote tool today. We’ll provide you with a bespoke quote for the best deals in a matter of minutes!

correct and accurate as of 11-01-2025. Published boiler only prices with guide installation price of £1,500

Vaillant System Boiler Prices

A Vaillant system boiler will cost from £2,000 to £5,500 including installation.

Do you live in a large home with high heating and hot water demands? If so, a Vaillant system boiler could be the perfect solution for you. Designed to provide effective heating and hot water using an additional hot water cylinder for storage, you can save space as these systems don’t require a cold water tank. Additionally, like regular systems, system boiler can deliver hot water to multiple taps at once – perfect for large groups and families.

Vaillant system boiler prices are reliant on the model and size of the system you choose. For example, an ecoTEC plus system 12kW cost approximately £912 for the boiler alone. The total cost of its installation ranges at around £2,412. If you’re in need of a larger system boiler, you could choose an ecoTEC plus 64kW which is perfect for large homes with high heating and hot water expectants.

This powerful system cost around £2,459 for the system alone, and approximately £3,959 for its installation.

Get a better idea of Vaillant system boiler prices by trying our free online boiler quote tool.

correct and accurate as of 11-01-2025. Published boiler only prices with guide installation price of £1,500

Vaillant Boiler Reviews

Vaillant has received a variety of reviews and ratings for their heating products and services. Let’s take a look to give you a better insight into type of service you’ll get if you choose a Vaillant boiler.

On the review site Trustpilot, Vaillant currently has a 4.5 out of 5 score, which is rated “Excellent.” This is based on over 19,000 reviews, and shows that the company is really dedicated to providing first-class products and services. 79% of their reviews are 5-stars, 11% are 4-stars, 3% are 3-stars, 2% are 2-stars and 5% are 1-star reviews.



Customers praise Vaillant for their “excellent service,” high-quality products and “polite, efficient and knowledgeable” advisors. 

correct and accurate as of 11-01-2025

Vaillant Which? Score

Vaillant has achieved excellent scores from customer champions Which? They received 5-stars for engineer recommendation, build quality, availability of parts and spares, ease of servicing, plus a 5-star customer score. They also received 4-stars for reliability.

All of these commendable marks have led them to be deemed a “Best Buy.”

The table below shows a breakdown of their Which? Scores:

Source: Which? May 2018 survey of Which? members about their boilers.

Should I choose a Vaillant Boiler?

If you’re looking for innovation, energy-efficiency and reliability, then a Vaillant boiler could be a suitable choice for you. Whether you live in a large, medium or small property, there’s a Vaillant boiler that could comfortably meet your needs. The brand has a range of combis, regular systems and system boilers for you to choose from, and their knowledgeable staff will be able to help you with any queries you might have before, during and after your new Vaillant boiler installation.

The first step to getting a new Vaillant boiler installed is to look at Vaillant boiler prices. These can vary, but when you shop through Improve My Home, you’ll get access to some of the best offers on the market. We can help you get the Vaillant boiler you need without breaking the budget.

To kickstart your new Vaillant boiler installation, get a free boiler quote to get a personalised estimate of costs.