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Find Out About Vaillant Boilers Prices and Their Boiler Range

Vaillant makes combi, system and regular boilers that typically start at £715.22 and go up to £2,583.50, depending on model and size.

vaillant boiler prices

Vaillant is a leading UK boiler brand that continues to receive excellent reviews from both customers and engineers.

The company offers a wide selection of combi, system and regular boilers in a range of sizes from 12kW to 65kW to suit the requirements of different sized households. Better still, every model features low emissions and high energy efficiency ratings to help end-users reduce their carbon footprint and cut the cost of their fuel bills.

About Vaillant

As one of the world’s best-known boiler manufacturers, Vaillant has been setting the standards in the heating industry for more than 140 years and is dedicated to providing customers with energy-saving combi, system and regular boilers. Its products are built with renewable technologies and are highly sought-after for their quality, reliability and exceptional performance.

In addition to producing an impressive range of boilers, Vaillant provides superior levels of after-sales service and training support to engineers, which helps to improve the quality of its customer feedback. The brand is actually part of the Vaillant Group, which is an international family-owned company with a presence in over 20 countries.

Vaillant Combi Boiler Prices Range Between £858.00 and £1,916.88 and are Flexible and Efficient

Great for properties with limited space, combi boilers heat water directly from the mains so you won’t need a separate cold water tank or hot water cylinder with Vaillant’s combi models that range from 24kW to 40kW. They do, however, tend to struggle to cope with more than one tap running at the same time.

The brand’s combi boiler line includes the ecoFIT Pure Combi with high-spec heat exchanger, as well as the ecoTEC Exclusive Green iQ Combi with an impressive 1:10 modulation range and special Green iQ mode to reduce gas consumption. Other options include the ecoTEC Pro Combi and ecoTEC Plus Combi which, like all Vaillant combi models, are Quiet Mark approved for being extremely quiet in operation.

Prices range from around £858.00 to £1,916.88, and the amount you will need to spend will depend on your chosen model and size. The ecoTEC Pro and ecoFIT Pure come with a standard 2-year warranty, whereas the ecoTEC Plus and ecoTEC Exclusive Green iQ are covered for 5 years.

Vaillant Combi Boiler Prices

MODELTYPE DIMENSIONSMAX FLOW RATOUTPUTEFFICIENCY TYPICAL PRICE
Vaillant Eco Tec Plus 825CombiH - 720 mm
W - 440 mm
D - 338 mm
10.5 25.4 KW£ 1,102.07
Vaillant Eco Tec Plus 832CombiH - 720 mm
W - 440 mm
D - 338 mm
13 31.8 KW£ 1,185.65
Vaillant Eco Tec Plus 835CombiH - 720 mm
W - 440 mm
D - 338 mm
14.3 35 KW£ 1,263.53
Vaillant Eco Tec Plus 838CombiH - 720 mm
W - 440 mm
D - 406 mm
15.9 38.7 KW£ 1,395.00
Vaillant Eco Tec Plus 938CombiH - 720 mm
W - 440 mm
D - 600 mm
15.9 38.7 KW£ 1,491.32
Vaillant ecoTEC Exculsive 35CombiH - 720 mm
W - 440 mm
D - 474 mm
14.5 35 KW£ 1,425.60
Vaillant ecoTEC Exculsive 43CombiH - 720 mm
W - 440 mm
D - 474 mm
17.8 43 KW£ 1,916.88
Vaillant EcoTech Pro Combi 24CombiH - 720 mm
W - 440 mm
D - 338 mm
9.6 24 KW£ 938.44
Vaillant EcoTech Pro Combi 28CombiH - 720 mm
W - 440 mm
D - 338 mm
11.1 28 KW£ 925.00
Vaillant EcoTech Pro Combi 30CombiH - 720 mm
W - 440 mm
D - 338 mm
12.3 30 KW£ 1,086.00
Vaillant EcoFit Pure Combi 25CombiH - 700 mm
W - 390 mm
D - 295 mm
10.4 25 KW£ 858.00
Vaillant EcoFit Pure Combi 30CombiH - 700 mm
W - 390 mm
D - 295 mm
12.4 30 KW£ 980.32
Vaillant EcoFit Pure Combi 35CombiH - 700 mm
W - 390 mm
D - 295 mm
14.4 35 KW£ 1,090.46
Vaillant Ecotec Exclusive with Green IQ 835CombiH - 720 mm
W - 440 mm
D - 406 mm
14.5 35 KW£ 1,485.00
Vaillant Ecotec Exclusive with Green IQ 843CombiH - 720 mm
W - 440 mm
D - 474 mm
17.8 43 KW£ 1,750.00

Vaillant System Boiler Prices Range Between £778.80 and £2,799.15 and are Perfect for High Demand Homes

Whilst Vaillant’s system boilers suit homes with small or big heating and hot water needs, they are particularly ideal for properties with greater demands. This is because they must be installed together with a separate cylinder for storing hot water, enabling them to provide a constant supply of hot water to all of your taps at the same time.

The range features five different models including the ecoTEC High Output System in outputs of 46kW and 65kW and the ecoTEC Plus High Output System in outputs of 48kW and 64kW. There is also the ecoTEC Plus System with installation wizard, plus the ecoFIT Pure System in outputs from 12kW to 30kW and the ecoTEC Exclusive Green iQ System with a heating output of 27kW.

These system boilers by Vaillant typically cost between £778.80 and £2,799.15, all of which have a 5-year standard warranty apart from the ecoFIT Pure with a 2-year guarantee.

Vaillant System Boiler Prices

MODELTYPE DIMENSIONSMAX FLOW RATOUTPUTEFFICIENCY TYPICAL PRICE
Vaillant Eco Tech Plus 615 SystemH - 720 mm
W - 440 mm
D - 338 mm
N/A 15 KW£ 822.68
Vaillant Eco Tech Plus 618SystemH - 720 mm
W - 440 mm
D - 338 mm
N/A 18 KW£ 934.80
Vaillant Eco Tech Plus 624SystemH - 720 mm
W - 440 mm
D - 338 mm
N/A 24 KW£ 1,061.48
Vaillant Eco Tech Plus 630SystemH - 720 mm
W - 440 mm
D - 372 mm
N/A 30 KW£ 1,228.03
Vaillant Eco Tech Plus 637SystemH - 720 mm
W - 440 mm
D - 406 mm
N/A 37 KW£ 1,367.81
Vaillant ecoFIT Pure 612SystemH - 700 mm
W - 390 mm
D - 295 mm
N/A 12 KW£ 844.24
Vaillant ecoFIT Pure 615SystemH - 700 mm
W - 390 mm
D - 295 mm
N/A 15 KW£ 901.66
Vaillant ecoFIT Pure 618SystemH - 700 mm
W - 390 mm
D - 295 mm
N/A 18 KW£ 926.40
Vaillant ecoFIT Pure 625SystemH - 700 mm
W - 390 mm
D - 295 mm
N/A 25 KW£ 1,115.90
Vaillant ecoFIT Pure 630SystemH - 700 mm
W - 390 mm
D - 295 mm
N/A 30 KW£ 1,157.39
Vaillant Ecotec Exclusive with Green IQ 27KSystemH - 720 mm
W - 440 mm
D - 338 mm
N/A 27 KW£ 1,310.40
Vaillant EcoTec 46KSystemH - 800 mm
W - 480 mm
D - 450 mm
N/A 46 KW£ 2,177.78
Vaillant EcoTec 65KSystemH - 800 mm
W - 480 mm
D - 450 mm
N/A 65 KW£ 2,799.15
Vaillant EcoTec Plus 48SystemH - 720 mm
W - 440 mm
D - 405 mm
N/A 48 KW£ 2,187.35
Vaillant EcoTec Plus 64SystemH - 720 mm
W - 440 mm
D - 405 mm
N/A 64 KW£ 2,583.50

Vaillant Regular Boiler Prices Range Between £715.22 and £1,522.42 and have a High Performance Build

All regular boilers (also known as open vent boilers) require a tank in the loft and a cylinder in an airing or storage cupboard to provide central heating and hot water. Since they can supply a lot of hot water at once, regular boilers are practical solutions for homes with multiple bathrooms and households with large requirements.

Two models make up the Vaillant regular boiler range – the ecoFIT Pure Regular and the ecoTEC Plus Regular both available in outputs from 12kW to 35kW. Each model is user-friendly, has built-in frost protection and is compact enough to fit in a standard-sized kitchen cupboard. Furthermore, these boilers can be used with a wide range of optional energy-saving controls.

When it comes to price tags, you can expect to pay anything between £715.22 and £1,522.42. The ecoFIT Pure is backed by a 2-year parts and labour warranty, and the ecoTEC Plus has a more desirable 5-year warranty.

Vaillant Regular Boiler Prices

MODELTYPE DIMENSIONSMAX FLOW RATOUTPUTEFFICIENCY TYPICAL PRICE
Vaillant Eco Tec Plus 412RegularH - 600 mm
W - 375 mm
D - 320 mm
N/A12 KW£ 715.22
Vaillant Eco Tec Plus 415RegularH - 600 mm
W - 375 mm
D - 320 mm
N/A15 KW£ 816.19
Vaillant Eco Tec Plus 418RegularH - 600 mm
W - 375 mm
D - 320 mm
N/A 18 KW£ 903.55
Vaillant Eco Tec Plus 424RegularH - 600 mm
W - 375 mm
D - 320 mm
N/A 24 KW£ 958.46
Vaillant Eco Tec Plus 430RegularH - 600 mm
W - 375 mm
D - 320 mm
N/A 30 KW£ 1,014.39
Vaillant Eco Tec Plus 435RegularH - 600 mm
W - 375 mm
D - 320 mm
N/A 35 KW£1,522.42
Vaillant Ecofit Pure 412Regular Open Vent H - 600 mm
W - 375 mm
D - 295 mm
N/A 12 KW£ 730.39
Vaillant ecoFIT Pure 415Regular Open Vent H - 600 mm
W - 375 mm
D - 295 mm
N/A 15 KW£ 758.06
Vaillant ecoFIT Pure 418Regular Open Vent H - 600 mm
W - 375 mm
D - 295 mm
N/A 18 KW£ 796.79
Vaillant ecoFIT Pure 425Regular Open Vent H - 600 mm
W - 375 mm
D - 295 mm
N/A 25 KW£ 958.83
Vaillant ecoFIT Pure 430Regular Open Vent H - 600 mm
W - 375 mm
D - 295 mm
N/A 30 KW£ 695.88
Vaillant ecoFIT Pure 435Regular Open Vent H - 600 mm
W - 375 mm
D - 295 mm
N/A 35 KW£ 776.09
Vaillant EcoFit Pure Regular 12RegularH - 600 mm
W - 375 mm
D - 295 mm
N/A 12 KW£ 726.91
Vaillant EcoFit Pure Regular 15RegularH - 600 mm
W - 375 mm
D - 295 mm
N/A 15 KW£ 766.17
Vaillant EcoFit Pure Regular 18RegularH - 600 mm
W - 375 mm
D - 295 mm
N/A 18 KW£ 793.60
Vaillant EcoFit Pure Regular 25RegularH - 600 mm
W - 375 mm
D - 295 mm
N/A 25 KW£ 858.00
Vaillant EcoFit Pure Regular 30RegularH - 600 mm
W - 375 mm
D - 295 mm
N/A 30 KW£ 983.82
Vaillant EcoFit Pure Regular 35RegularH - 600 mm
W - 375 mm
D - 295 mm
N/A 35 KW£ 1,433.22

Vaillant Boiler Facts

Vaillant Boiler Warranty

When you choose a Vaillant boiler for your home, you’ll receive a free standard boiler warranty ranging from 2 to 5 years. The length of your warranty will depend entirely on which model you go for, so it’s well worth finding out which boilers have the longest warranty periods prior to making a final decision. Better still, you could be offered an extended Vaillant boiler warranty (up to 10 years) when you hire a Vaillant Advance installer to fit your boiler.

Vaillant Boiler Problems and Repairs

Although Vaillant is a respected brand that refuses to use anything other than high-quality components and materials to make products, there are some common Vaillant boiler problems and repairs that customers can encounter. On the plus side, Vaillant has been award a very decent 4 stars for reliability by Which? consumer magazine, so this should give you peace of mind that Vaillant boilers are up there with the best of them. We’ve written a guide to Vaillant boiler repairs, which you should find helpful if you’re having issues with your boiler.

Vaillant Boiler Fault Codes

As we just mentioned, Vaillant boilers can develop faults from time to time. It tends to be old boilers that are more prone to faults, but that isn’t to say that newer boilers are immune to problems. When your Vaillant boiler runs into trouble, it usually displays a fault code to help you determine what has gone wrong and to make it easy for your engineer to find the exact cause. If your Vaillant boiler is showing an error code, simply refer to our detailed guide to Vaillant boiler fault codes.

Vaillant Optional Boiler Controls

Vaillant not only manufactures a wide range of high-performance boilers but the brand also offers a range of optional boiler controls and thermostats to help Vaillant boilers meet Boiler Plus status. There are plenty of Vaillant boiler controls to choose between, from simple analogue heating timers and weather compensating thermostats to intelligent room controls with apps. For more information on how these controls can complement and improve the overall efficiency of your boiler, just read our Vaillant optional boiler controls guide.

Always Compare Vaillant Boiler Prices and Installation Costs

If you do decide to buy a Vaillant boiler, it’s always best to get a range of quotes on the boiler itself and the installation. By doing so, you can compare prices and, hopefully, find the best deal available. Don’t forget to ask for a fixed price on the boiler and fitting work to avoid any hidden charges further down the line. If you haven’t the time to do this, you can use our free online quotation service to obtain competitive quotes from reputable suppliers and Gas Safe installers.

Choose a Gas Safe Registered Engineer

To ensure the installation is carried out safely and legally, you must choose an engineer who is Gas Safe registered and has the relevant qualifications to fit your new gas boiler. You can ask to view an engineer’s Gas Safe ID card, which should clearly show their photo, 7 digit licence number and valid from and expiry dates on the front. Then, look at the back of the card to see what work they are qualified to do. If you prefer, you can simply use the search options at the Gas Safe Register website to check the qualifications and registration status of an engineer.

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