New Boiler Installation London

Vaillant boiler installations

Warm & Cool London working with the UK's most trusted boiler brands

Vaillant Boiler Installation London
Warm & Cool London

Warming London homes

London's Premium Boiler Installation Specialist

Vaillant Boiler Installation & Servicing, London

At Warm and Cool London, we put quality, reliability and eco-friendliness at the forefront of everything we do, which is why Warm and Cool London will only ever deal with the Vaillant brand.

If you’re in the market for an environmentally friendly and cost-effective boiler, you should look no further than the Vaillant range. Vaillant is dedicated to providing energy-efficient boilers with low emissions whilst always prioritising renewable technologies with a focus on anticipating future needs. Vaillant heating and hot water systems use sustainable energy sources, providing customers with simple and eco-friendly ways to save on energy.

Vaillant Boilers are known for their high performance, dependability, and exceptional quality, making them an excellent choice for any property and the reason why we choose Vaillant over all other manufacturers on the market.

Leading boiler brands
Extended guarantees
5 star customer service
Yes, we service boilers too!

Vaillant Boiler Packages for London Homeowners

eco fit pure

ecoFit Pure
Pure 25 – 30 – 35

If space is at a premium in your home, the cupboard-size ecoFIT pure boiler is the choice for you. 

It’s designed to be flexible, with a rear flue option available to give you more choice where you put it.

£POA – starting from

ecotec pro

ecoTec Pro
Pro 24 – 28 – 30

The ecoTEC pro combi boiler is the ideal solution for small-to-medium homes that need instant hot water without the need for a water tank. 

Using modulating technology the boiler can adapt itself to provide you with heating only when you need it.

£POA – starting from

ecotec plus2

ecoTec Plus 2
25 – 32 – 37 - 40

Extremely reliable and displaying all the in-built quality Vaillant is known for, the ecoTEC plus is clearly one of the best combi solutions available today. Available in a range of power outputs, the ecoTEC plus has been remastered to create a stylish, modern and extremely efficient boiler, perfect for any home.

£POA – starting from

WCL - Man pointing denim shirt

Meet Londons's Premium Heating & Cooling Specialists.
Check what other out what other Londoners say about our services.

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Read what other locals say about their Warm & Cool London journey
Vaillant Boiler in London
Warm & Cool London

Cooling London homes since 2007

London's Premium Boiler Installation Specialist

Understanding the different types of boilers

Choosing the right boiler isn’t just about brand, it’s about selecting a system that suits your home, your hot water demand, and your existing setup. Here’s a simple breakdown of the main types of boilers used across London homes.

Combi boilers are the most popular choice for modern homes, especially flats and smaller properties across London.

They provide heating and hot water directly from the boiler, without the need for a separate hot water cylinder or cold water tank.

Best for:

  • Flats and smaller homes
  • Properties with limited space
  • Households with lower to moderate hot water demand

Benefits:

  • Compact and space-saving
  • Hot water on demand
  • No tanks required

Things to consider:
If multiple taps or showers are used at the same time, water pressure can drop.

System boilers work alongside a hot water cylinder, storing hot water so it’s ready when you need it.

Unlike traditional systems, many of the key components are built into the boiler itself, making installation cleaner and more efficient.

Best for:

  • Medium to larger homes
  • Families with higher hot water demand
  • Homes with multiple bathrooms

Benefits:

  • Strong, consistent water pressure
  • Can run multiple outlets at once
  • More efficient than older systems

Things to consider:
You’ll need space for a hot water cylinder.

Regular boilers are the traditional setup, often found in older properties. They require both a hot water cylinder and a cold water storage tank, usually in the loft.

Best for:

  • Larger or older homes
  • Properties with existing traditional systems
  • Homes with very high water demand

Benefits:

  • Ideal for high demand households
  • Works well with older radiator systems
  • Reliable and familiar setup

Things to consider:
They take up more space and are less efficient than modern alternatives.

Vaillant Boiler Service London
Warm & Cool London

Warming London homes

London's Premium Boiler Service Specialist

Yes, we also service boilers in London

We don’t just install boilers, we also service them across London to keep everything running safely and efficiently.

Regular servicing is key to making sure your boiler is performing as it should. It helps prevent unexpected breakdowns, keeps your warranty valid, and ensures your system is operating as efficiently as possible, which can help keep energy bills under control.

At Warm & Cool London, our boiler servicing includes a full check of your system, from safety components and pressure levels to overall performance. Whether you’re in a flat in Islington or a townhouse in Clapham, we’ll make sure your boiler is ready to handle everyday use.

If your boiler hasn’t been serviced in the last 12 months, it’s a good time to get it booked in.

Our Case Studies

Our Recent London Boiler Installations

Boiler Installation
Central London
Vaillant Boiler Installation
Boiler Installation Project Central London
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Boiler Installation
Camden Town, London
Vaillant Boiler Installation
Boiler Installation Project Camden Town, London
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Boiler Installation
Notting Hill, London
Vaillant Boiler Installation
Boiler Installation Project Notting Hill, London
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Hey London! 
Here's everthing you need to know about getting a new boiler

At Warm and Cool London, we are committed to providing our customers with a seamless and stress-free experience from start to finish when purchasing any of our products.

Our 24/hr landline ensures that you always speak to a human when booking an appointment. Once booked, we will make sure to give you an accurate appointment time scheduled down to the minute, with a reminder sent to your phone prior to the appointment to make sure you remember. Following this, our live updates inform you of our arrival, allowing you to plan your day accordingly.

There is lots of info on this page, but if you are in a hurry you can use the drop-down menu to jump to the information you need quickly.

What's on this page

Vaillant Boiler Thermostat London
Controlling Your Vaillant Boiler

Controlling your heating

Choosing the proper heating controls for your boiler can often be confusing, but finding the right controls for your boiler, it allows you to take complete control of your heating system and never waste energy again.

As part of the Boiler Plus initiative, ‘smart’ Vaillant controls automate and optimise certain functions of your boiler, resulting in lower energy bills. At Warm and Cool, we recommend the Vaillant ‘Senso’ controls to ensure you always get the most out of your boiler at any time of the day without compromising on energy usage.

Vaillant boiler filter installed in London house
System & Boiler Protection

Protecting your heating

Don’t let clogged pipes and rising energy costs become a headache for you. Proper maintenance is the key to ensuring your heating system operates efficiently. Neglecting it can lead to reduced performance and higher energy bills due to restricted water flow caused by debris buildup.
But fret not! At Warm and Cool London, we ensure your Vaillant boiler protects against the dreaded sludge buildup by installing a magnetic filter.

There’s no need to compromise on the efficiency and longevity of your heating system. Let Warm and Cool London help you say goodbye to rising energy costs and hello to a hassle-free heating experience by ensuring the smooth operation of your boiler, and increasing its lifespan, with the Vaillant magnetic filter.

London's Premium Boiler Installation Specialist

Our boiler installation locations

Boiler Installation
Central London
Boilers in Central London
For "Boiler Installation in Central London," trust Warm & Cool London. Situated near Regent's Park, we've been keeping Central London residents warm with our energy-efficient heating systems since 2016. Your family's comfort and the penguin's well-being are our priorities.
Coming Soon
New Boilers
North London
Boilers in North London
Coming soon, our North London Blog showcases our recent New Boiler Installations & replacements alongside our Heat Pump installations in the North London areas. Conveniently located near Regent's Park, we've been installing eco-friendly heating systems in key North London neighbourhoods like Hampstead, Islington, Highgate, and Muswell Hill since 2016.
Coming Soon
Commercial Boiler Engineers
London
Commercial Engineers
Are you looking for an experienced commercial boiler team to keep your London business warm in winter and cool in the summer? Warm & Cool has been installing commercial heating equipment throughout London since 2016. Commercial properties often need bespoke solutions. You may need a new boiler, heat pump, AC unit or more than one technology. Check out the Warm and cool London Commercial options here.
Coming Soon

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Get in touch

Warm & Cool London

Let's Talk

Office Phone : 0203 633 2322 

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Head Office

Warm & Cool London
The Vineyards, 36 Gloucester Avenue, Primrose Hill, LONDON NW1 7BB

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Warm & Cool London's Knowledge Vault

At Warm & Cool London we understand that both heating and air-con installation can be confusing at the best of times – that’s why we’ve put everything you need to know in a handy section of our website called the Knowledge Vault. Put your mind at ease today with Warm & Cool London’s knowledge vault!

Everything you should know about your Vaillant Boiler system

Hit the link below to read more

Everything you should know about your Vaillant Heat Pump

Hit the link below to read more

Everything you should know about your Air Conditioning system

Hit the link below to read more

FAQ

Londoners frequently ask these boiler questions

Here are some boiler installation related things we’re most often asked by customers across London. If you’re still not sure about something, just give us a ring, we’re always happy to help.

Most boiler installations can be completed within one day, especially if you’re replacing like-for-like. More complex upgrades, such as changing boiler type or relocating the system, may take a little longer, but we always keep disruption to a minimum.

In most cases, no, boiler installations are considered a standard home improvement. However, if you live in a listed building or conservation area, it’s always best to double-check with your local authority.

In most cases, no. However, if you live in a listed building or conservation area, or in a flat with restrictions, you may need approval. We can guide you through this if needed.

That depends on your property and usage.

  • Combi boilers suit flats and smaller homes
  • System boilers are better for larger homes with higher demand
    We’ll assess your setup and recommend the right option for you.

Yes, boilers can be relocated, for example into a cupboard or loft space. However, it depends on pipework, flue position, and overall layout. We’ll advise on what’s possible and provide a clear quote.

Yes, most modern boilers come with a manufacturer’s warranty, typically ranging from 5 to 10 years, depending on the brand and installation.

Vaillant is one of the UK’s most trusted heating brands, known for reliability, efficiency, and quiet operation. Their boilers are designed to reduce energy usage while delivering consistent heating and hot water, ideal for modern London homes.

Yes, Vaillant boilers are designed with high efficiency in mind, helping to reduce energy bills and carbon emissions. Many models achieve A-rated efficiency, making them a great choice for homeowners looking to save on running costs.

That depends on your property size and hot water demand.

  • Combi boilers are ideal for flats and smaller homes
  • System boilers suit larger homes with multiple bathrooms
    We’ll assess your home and recommend the right model for you.

Yes, Vaillant boilers work seamlessly with smart controls like Vaillant sensoCOMFORT and vSMART, allowing you to control your heating from your phone and improve efficiency through smart scheduling.

Yes, Vaillant systems are designed with the future in mind. If you’re thinking about moving toward low-carbon heating later on, a Vaillant boiler can be part of a hybrid system, working alongside a heat pump to improve efficiency and reduce energy use over time.

Choosing between a modern Vaillant boiler and a heat pump isn’t always straightforward, especially in London, where every property is different. The right option depends on your home, your energy goals, and how you use heating day to day.