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How to buy a Vaillant boiler

Find the boiler that is perfect for you
installer and woman looking at the boiler

Reasons to replace your current gas boiler

Upgrading your boiler can be a costly investment but there are multiple benefits of modernising and replacing your existing boiler:

  • New boilers are often more energy efficient resulting in savings on household energy bills. Paired with a Vaillant heating control or thermostat, you can potentially make even greater savings on your bills without being wasteful. New boiler installations must comply with Boiler Plus Government legislation meaning they must have a temperature control fitted and the heating system must meet or exceed an ErP efficiency of 92% during operation.

  • If you have an old boiler that is non-condensing, it will probably be classed as a band G boiler, with an energy efficiency of less than 70%. All Vaillant boilers are ErP 'A rated', meaning they have an energy efficiency of 90%.

Need a replacement boiler?

It's as easy as 1,2,3

1
Find your perfect boiler
boiler standing on a wall in a kitchen
Find your perfect boiler

At Vaillant, we manufacture three different types of gas boilers; combination (combi) boilers, system boilers and regular (open vent) boilers. Our products suit a wide range of homes and living spaces. If you’re thinking of upgrading your boiler, you must consider the size of your home, budget and your heating and hot water demands. With guarantees of up to 10 years available through your Vaillant myREWARDS installer, you can be confident that our gas boilers offer the highest levels of quality, reliability and performance. See our full product range and choose a boiler that will suit your central heating and hot water demands.

2
Find your local installer
an installer shaking hands with a homeowner
Find your local installer

Once you've found your perfect boiler, you'll need to find a local accredited installer for a quote. Click here to find your nearest Vaillant installer.

3
Consultation
three people talking around a table
Consultation

After filing out the form and you've heard back from them all, your chosen installer will visit your property to scope out the type of installation. They will look at your current heating system, boiler placement and if any further work needs to be carried out. They may ask you some questions about your radiators, what type of heating control you want fitted and access to and from your property. The installer will also provide you with a quote for the work carried out and how long the installation will take to complete. This will also be the opportunity to ask your installer any questions about your new heating system, and you can arrange a fitting date to suit you directly with your installer.

1 / 3
1. Find your perfect boiler 2. Find your local installer 3. Consultation
boiler standing on a wall in a kitchen
an installer shaking hands with a homeowner
three people talking around a table
Find your perfect boiler

At Vaillant, we manufacture three different types of gas boilers; combination (combi) boilers, system boilers and regular (open vent) boilers. Our products suit a wide range of homes and living spaces. If you’re thinking of upgrading your boiler, you must consider the size of your home, budget and your heating and hot water demands. With guarantees of up to 10 years available through your Vaillant myREWARDS installer, you can be confident that our gas boilers offer the highest levels of quality, reliability and performance. See our full product range and choose a boiler that will suit your central heating and hot water demands.

Find your local installer

Once you've found your perfect boiler, you'll need to find a local accredited installer for a quote. Click here to find your nearest Vaillant installer.

Consultation

After filing out the form and you've heard back from them all, your chosen installer will visit your property to scope out the type of installation. They will look at your current heating system, boiler placement and if any further work needs to be carried out. They may ask you some questions about your radiators, what type of heating control you want fitted and access to and from your property. The installer will also provide you with a quote for the work carried out and how long the installation will take to complete. This will also be the opportunity to ask your installer any questions about your new heating system, and you can arrange a fitting date to suit you directly with your installer.

Register your boiler’s guarantee

Once you’ve had your new boiler installed, you can register your guarantee online through myVAILLANT Web online portal or your installer can do it on your behalf and offer an extended guarantee period.

Your Vaillant guarantee covers you for the repair of any defects related to the manufacturer of your Vaillant appliance. The repair will be called out by one of our service engineers and will cover both parts and labour.

Learn more about guarantees and the terms and conditions here.

Find your perfect heating system

Find an installer Find a Vaillant boiler

Read more

  1. MODERNISATION

    Is my home suitable for a heat pump?

    Read here
  2. CYLINDERS

    What is a hot water cylinder?

    Read more
  3. BOILER ADVICE

    What pressure should my boiler be?

    Read here