Vaillant Boiler Prices & Installation Guide

Vaillant boilers range in price from  £1,050 to £2,730, depending on the model and features.

Additionally, professional installation is essential for efficiency, safety, and durability, with installation costs influenced by location and job complexity.

In this expert guide, we’ll explore the prices of Vaillant boilers in terms of the different models and types available to help you make an informed decision about your next boiler.

Vaillant Boiler Price Breakdown

Vaillant boiler prices can vary depending on:

• The boiler model
• The type of boiler (combi, system, or regular) 
• The efficiency rating 
• The kilowatt output 
• The fuel source (natural gas, LPG, or LPG adaptable)
• Any necessary sundries/parts (flue, filter, controller, etc.)

In 2024, prices generally range from around £1,050 to £2,730 for the boiler alone. 

Additionally, labour costs during the installation process can set you back a further £500 to £1,000.

Vaillant Boiler Models 

Boiler model	Boiler type available	Key features
ecoTEC plus	Combi, System, Regular	Sleek & modern design | Smart home ready | Compatible with myVAILLANT connect | User-friendly interface | IoniDetect technology for greater energy efficiency
ecoTEC pro	Combi	Simple and easy-to-operate display | Stainless-steel heat exchanger | Adaptable to your heating needs | Quiet Mark approved
ecoTEC exclusive	Combi, System	Green iQ marked for added efficiency | 85% recyclable | Low running costs | Quiet Mark approved
ecoFIT pure	Combi, System, Regular	Smart controls | Can easily fit in a cupboard | Hand-built in Derbyshire | Flexible design | Aluminium heat exchanger for top-performance
ecoTEC sustain	Combi	Easily serviced thanks to front access, resulting in greater savings on repairs | Lower emissions |  aroTHERMheat pump-compatible | vSMART-compatible

Vaillant Combi Boiler Prices

Vaillant combi boilers cost around £1,050 to £1,855 for the boiler unit and are highly popular in the UK due to their:

• Compact size
• Cost-effective installation
• Efficient delivery of hot water and heating

They boast over 89% efficiency and heat water directly from the mains, which means there is no need for a separate cold water tank. 

The Vaillant combi boiler range includes five main models:

1. ecoFIT pure

2. ecoTEC plus

3. ecoTEC pro

4. ecoTEC exclusive 
5. ecoTEC sustain 

To give you a better understanding of the differences between these boilers, we have compiled a cost table with each combi boiler currently provided by Vaillant, as of 2024: 

Model	Kilowatt (kW) output	Fuel source	Warranty	Efficiency rating	Prices (without installation)	Prices (with installation)
ecoTEC plus (826, 832, 836, 840, 940)	26 | 32 | 36 | 40	Natural gas (models 826, 832 & 836 can be adapted to be LPG compatible)	Up to 10 years	93-94%	£1,510 – £2,730	£2,010 – £3,730
ecoTEC plus (825, 832, 835, 838, 938)	25 | 32 | 35 | 38	Natural gas	Up to 10 years	94%	£1,700 – £2,250	£2,200 – £3,250
ecoTEC exclusive with Green iQ (825, 843)	35 | 43	Natural gas	2 years	89.1-89.3%	£1,510 – £1,770	£2,310 – £3,070
ecoFIT pure	25 | 30 | 35	Natural gas	Up to 10 years	94%	£1,190 – £1,660	£1,690 – £2,660
ecoTEC pro	24 | 28 | 28 | 30	Natural gas (24 & 28); LPG (28 & 30)	Up to 7 years	93-94%	£1,330 – £1,720	£1,830 – £2,720
ecoTEC sustain	24 | 25 | 28 | 30 | 34 | 35	Natural gas	2 years	92-93%	£1,050 – £1,460	£1,550 – £2,460

Vaillant System Boiler Prices

Vaillant system boilers generally cost between £1,180  and  £2,950 and are suitable for medium to larger homes. Since these boilers store hot water in a separate cylinder, they’re ideal for properties with multiple bathrooms or high hot water demands.

The Vaillant system boiler range includes the following models: 

• ecoFIT pure
• ecoTEC plus
• ecoTEC exclusive 

Let’s take a closer look at what you could expect to pay for one of these boilers in 2024: 

Model	Kilowatt (kW) output	Fuel source	Warranty	Efficiency rating	Prices (without installation)	Prices (with installation)
ecoTEC plus	10 | 15 | 20 | 25 | 30 | 35	Natural gas (can be adapted to be LPG compatible)	Up to 10 years	92-94%	£1,220 – £1,950	£1,720 –  £2,950
ecoTEC exclusive Green iQ	27	Natural gas	2 years	94%	£1,750	£2,250 –  £2,750
ecoFIT pure	12 | 15 | 18 | 25 | 30	Natural gas	Up to 10 years	95%	£1,180 –  £1,720	£1,680 –  £2,720

Vaillant Regular Boiler Prices

Vaillant regular boilers are priced between £1,180 and £1,950 and are best for large, busy properties.

Regular boilers, also known as open vent boilers, have a separate hot water cylinder and a cold water storage tank. This makes them suitable for homes with very high hot water and heating demands, or older properties that already have the infrastructure in place. 

Unlike Vaillant’s combi and system boiler offerings, there are fewer models available in this range, namely: 

• ecoTEC plus 
• ecoFIT pure

Here’s a snapshot of what you could pay for a regular boiler from Vaillant in 2024:

Model	Kilowatt (kW) output	Fuel source	Warranty	Efficiency rating	Prices (without installation)	Prices (with installation)
ecoTEC plus	12 | 15 | 18 | 24 | 30 | 35	Natural gas, LPG (24 kW)	Up to 10 years	92-94%	£1,220 – £1,950	£1,720 –  £2,950
ecoFIT pure	12 | 15 | 18 | 25 | 30	Natural gas	Up to 10 years	95%	£1,180 –  £1,720	£1,680 –  £2,720

Vaillant Boiler Installation Costs

The cost of installing a Vaillant boiler can differ based on: 

• Your location
• The boiler’s location in the building
• Whether it is a like-for-like boiler replacement 
• The boiler type 
• The overall complexity of the installation

On average, you can usually expect to pay around £500 to  £1,500 for your installation. 

The job can take anything from a few hours to a few days, depending on the amount of work needed. For example, a straightforward combi replacement job can typically be completed within half a day. Since each installation is unique, the time it takes to complete the process requires careful consideration.

Remember, professional installation is paramount for the efficiency, safety, and durability of your new Vaillant boiler.

Why Choose a Vaillant Boiler?

Vaillant boilers are a popular choice due to their: 

• High-quality components
• Energy efficiency
• The brand’s excellent customer service
• Innovative features, such as the vSMART technology

With a 4.4 out of 5 rating on Trustpilot and 89% of ratings being Excellent or Great, Vaillant boilers have proven their reliability and customer satisfaction. Overall, customers praise the brand’s competitive pricing, efficient service, and excellent boiler durability. Here’s what some happy customers had to say: 

• “Excellent service and brilliant boiler this is our second the first was over 15 years old and still in good condition just wanted to change to a combi highly recommend” – Mrs Jayne Mahon, June 2024
• “The installation of a new boiler was stress free for me. It was completed quite quickly and everything was left neat and tidy. I am particularly pleased with how quiet the boiler is when running compared to my old one. I hope this continues when the heating is running.” – Kate, June 2024
• “Very efficient service. I had problems with my old boiler and it was replaced within two days. Engineer was very courteous and explained everything clearly. New boiler is excellent.” – Joan Forster, June 2024

Additionally, according to a Which? 2024 Vaillant boiler review, 88% of customers who bought a Vaillant boiler in the last six years were satisfied with their purchase. 

Since a majority of these boilers are hand-built in the brand’s Derbyshire manufacturing site, it allows for closer inspection and higher quality control. As a result, customers are guaranteed a more dependable boiler with greater peace of mind.

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

Vaillant Boiler Warranties

Vaillant boiler warranties range from two to 10 years, depending on the model and installation by an advanced installer. Generally, these boilers come standard with a two- to five-year warranty that covers parts and labour. However, you may have the option to extend your warranty to seven or 10 years if a Vaillant Advance installer fits a Boiler Protection Kit. 

In order to ensure your warranty is valid, here are some key clauses in Vaillant’s policy: 

• The installation must be completed by a Gas Safe registered engineer within six months after the boiler has been dispatched from the manufacturer’s warehouse. 
• Your installer must complete the Benchmark log book upon installation. 
• Your warranty must be registered within 30 days after the installation is complete. 
• Your boiler must be serviced annually by a Gas Safe registered or Vaillant engineer. The service details also need to be recorded in the Benchmark log book. 
• The warranty only covers labour and material charges to replace or repair components affected by manufacturing defects from the date of the installation. 

Provided these and other conditions are met, a Vaillant boiler warranty offers homeowners greater peace of mind knowing that their investment is protected.

Valliant vs Their Competitors

To get a better idea of whether purchasing a Vaillant boiler is the right decision for your home, let’s take a look at how this brand stacks up against its competitors. 

Vaillant vs Ideal 

Both Vaillant and Ideal have been in the industry for over 100 years and have established themselves as trusted household boiler brands. These brands both offer a range of combi, system, and regular boilers. 

In terms of costs, Ideal boiler prices are generally lower compared to those of Vaillant’s, offering innovative technology without the high price tag. Additionally, they come with a warranty that can extend up to 12 years, which beats Vaillant’s maximum warranty length of 10 years. 

However, Vaillant comes out on top in terms of customer service, reliability, and ease of servicing and repairs. So, while these boilers may be more expensive compared to Ideal’s, you do get what you pay for in terms of quality. 

Vaillant vs Viessmann 

Viessmann and Vaillant are both top contenders in the boiler market in terms of producing high-quality, energy-efficient boilers. Both brands also have various combi, system, and regular boilers to choose from. 

However, if we take a closer look at energy efficiency, Viessmann’s range usually boasts slightly higher ratings. Additionally, Viessmann’s boiler costs are also generally more affordable compared to Vaillant’s, especially when you compare like-for-like heating outputs and boiler types. 

Additionally, like Ideal, Viessmann also offers warranties that can be extended up to 12 years. 

Boiler brand	Boiler type	Boiler model	Warranty	Energy efficiency rating	Price (including installation)
Vaillant	Gas combi boiler	ecoTec plus 835 – 35 kW	Up to 10 years	94%	£2,230 – £2,740
Ideal	Gas combi boiler	Logic+ Combi C35 – 35 kW	7 years (parts and labour); 10 years (heat exchanger)	94%	£1,750 – £2,250
Viessmann	Gas combi boiler	Vitodens 100-W Combi – 35 kW	Up to 12 years	98%	£2,300 – £2,800
Vaillant	Gas system boiler	ecoTEC plus 630 – 30 kW	Up to 10 years	94%	£2,160 – £2,670
Ideal	Gas system boiler	Logic MAX System 30 – 30 kW	10 years	93%	£2,200 – £2,700
Viessmann	Gas system boiler	Vitodens 200-W System – 30 kW	Up to 12 years	94%	£2,280 – £2,780

Get A New Boiler Quote Today

Are you ready to install your new Vaillant boiler or are you still deciding which is the best boiler brand for you? At Eco Happy, we have years of experience in the industry and can help guide you on the ideal boiler for your home’s heating and hot water needs. 

Our professional team will be with you every step of the way, from installation, right up until aftercare service and maintenance. All you need to do is fill out the form on our website or contact us and we’ll be in touch with a free, no-obligation boiler quote. 

FAQs

Are Vaillant boilers reliable?

Yes, Vaillant boilers are reliable, especially when compared to other brands, such as Ideal. Vaillant also offers competitive boiler warranties that can extend up to 10 years. 

How much does a Vaillant boiler cost?

Vaillant boilers usually cost around £1,050 to £2,730 for the unit alone, and around £1,550 to £3,730 with installation. The final price will vary depending on the type and model of boiler you choose. 

How long does a Vaillant boiler last?

A Vaillant boiler can last up to 15 years with annual servicing and regular maintenance. However, many customers have reported their Vaillant boiler lasting as long as 20 years, with only minor repairs needed. 

Final Thoughts

With a wide range of combi, system, and regular boilers to choose from, Vaillant has a boiler to suit your household hot water and heating needs. 

Vaillant is a stand-out name in the industry, known for its high-quality, energy-efficient boilers featuring innovative smart controls. The brand also excels at providing top-notch customer service. 

While it doesn’t offer the cheapest boilers available on the market, especially compared to Viessmann and Ideal, Vaillant is a name that homeowners can trust.