Combi Boiler Installation London

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  • Free “No Pressure” Combi Boiler Quote
  • Gas Safe Registered Engineers
  • Up To 10 Years Parts & Labour Warranties On Combi boilers

Gas Safe Registered

25 Years Experience

Competitive Prices

Picture of the insides of a Viessmann Vitodens combi boiler

Are You Looking For A New Combi Boiler in London?

If you’re looking for a qualified Gas Safe Registered boiler fitter, London Boiler Installers are based in London and ready to help. Give us a call on 0208 154 5338 for your free evaluation!

Our team excels at fitting every type of combi boiler from all the top manufacturers like Vaillant, Viessmann and Worcester Bosch. We guarantee all our work is of the highest quality, providing reliable and professional results.

Vaillant Ecofit Pure Front

How much is a new combi boiler in London?

Are you wondering how much a new combi boiler installation will cost in London? Prices can range from around £2500 to £5000 and even higher.

Two factors affect the price of a new combi boiler installation. Firstly, the output and make of the boiler you choose – a high output boiler from a top brand will be more expensive than a low output boiler from a budget brand. Secondly, the complexity of the installation job – if you’re merely replacing an existing combi boiler with a new one, in the same place, it will cost less as it’s less labour intensive. On the other hand, if you’re converting your heat only boiler to a combi boiler, then it will be more expensive due to the extra labour and materials required.

Our advice is to speak with an experienced heating engineer. Explain what you’d like and get them to inspect your home and offer some options. In this way, you can determine the most suitable boiler for your needs and budget. Here at London Boiler Installers, we’d love to do a free survey and provide an estimate – just get in touch on 0208 154 5338!

Combi Boiler FAQ

What Combi Boiler Is The Best?

When it comes to finding a new boiler that won’t let you down, UK householders can rely on these 3 top brands: Viessmann, Vaillant and Worcester Bosch. All of these are sure to make a great addition to your home – but don’t forget about Ideal, Baxi and Main too!

Can A Combi Boiler Run Two Showers?

If you’re looking to install a Combi boiler in your home, remember that these usually offer 8-12 litres of hot water per minute – ideal for one shower but not if you need to use two at the same time. The best option here would be to go for a Heat-Only or System boiler plus a hot water cylinder. Or why not invest in a storage Combi boiler? This type has its own integrated hot water tank which increases performance, and brands such as Vaillant and Viessmann offer models with flow rates exceeding 20 litres per minute – enough for two showers without any issues!

Where Can I Install A Combi Boiler?

You can fit a combi boiler virtually anywhere in your dwelling, providing that it meets all manufacture’s instructions, gas safety requirements and building regulations.

To give you an idea of where it can be installed, some of the common areas are:

  • Kitchen cupboard
  • Utility room
  • Airing cupboard
  • Loft
  • Garage
  • Bedroom

Does A Combi Boiler Need To Be On An Outside Wall?

Installing a Combi boiler on an outside wall is usually preferred, because the flue pipe (or chimney) that carries away fumes can go straight outdoors. However, other options exist if you need to install it somewhere else. An increasingly popular choice is a vertical flue, which allows the boiler’s flue to travel upwards and out of the roof. This is often seen in situations where the boiler must be installed in a loft or airing cupboard.

If you’re considering an alternative to an outside wall installation, it’s important to discuss your flue options with a Gas Safe Registered heating engineer or the boiler manufacturer. Different brands have different requirements and guidelines when it comes to flues, so what may be safe for one might not be suitable for another – better to check first.

Does A Combi Boiler Need A Hot Water Cylinder?

Combi boilers are not dependent on a water tank, as they access their water from the mains. If you have a Combi boiler and a water tank in your loft however, this suggests an incorrect installation.

What Makes Combi Boilers Break Down & Need Repair?

When you install a new combi boiler, it’s essential to flush out your heating system to get rid of any sludge. This sludge can block up sensitive parts of the boiler and cause damage. That’s why it’s important to fit a magnetic sludge filter – often known as a Maganclean – at the same time as your boiler. This device traps any sludge from the heating system before it reaches your boiler. And as part of your boiler’s annual service, it should be serviced once a year and the filter removed and cleaned off to get rid of any sludge that has built up in the past 12 months. These filters are very important and are usually necessary for your boiler manufacturer’s guarantee.

Vaillant Ecotec Plus Display

Vaillant Combi Boiler Installation in London

Vaillant are best known for their Combi boilers. They pretty much invented the Combi boiler and were the first to bring Combi boilers to the UK in the late 1970’s and early 80’s. Since then, they’ve had a reputation for being high quality reliable Combi boilers and have done a great deal to improve the image of Combi boilers in the last 20 years. They’re also a very well established company, dating back over a 140 years with their origins in Germany.

Vaillant’s best known Combi boiler in London is the EcoTec. Let’s look at this in a little more detail.

Vaillant Ecotec Plus Combi Boiler

The Ecotec plus has been around since the mid 2000’s. The latest versions of the Ecotec are still very similar to the original which shows how well the Ecotec’s design has stood the test of time. Vaillant were among the first manufactures to use a stainless steel radial heat exchanger. This was a revolution in efficiency and longevity in condensing boilers and set the standard for the next 20 years. Many manufactures have copied the Ecotec’s design, but none are as innovative as Vaillant in this area.

The Ecotec is still one of the best boilers you can buy. It will reliably produce heating and hot water in your London home for many years to come.

Photo of Ideal Logic Max combi boiler and Ideal filter

Ideal Combi Boiler Installation In London

If you’re looking for a top-notch yet wallet-friendly boiler to install in your London home, then the Ideal Combi range is definitely worth considering. They’ve been fitted in thousands of properties across the area over the past decade and are known to deliver on both quality and affordability – making them ideal for landlords and developers alike. The Ideal Logic model has been around since 2009 and is still going strong today – plus it comes with a great warranty too!

Worcester Bosch Combi Boiler Installation London

Families in London are familiar with the name Worcester Bosch when it comes to Combi boilers – and for good reason. They might not be as pioneering as Vaillant, however they certainly make excellent quality Combi boilers. This popular UK brand was established in 1996 when British company Worcester teamed up with German giant Bosch to create the Worcester Bosch organisation. Over time they’ve created a solid reputation for themselves, largely thanks to the lauded Worcester Bosch CDi.

Worcester Bosch CDi Combi Boiler (Now Called The Worcester Bosch 8000)

The initial version of the Worcester Cdi combi was released in the mid 1990’s and quickly became known for its sound construction and impressive design. In fact, there are still some originals working well in London today – over 25 years later! This is where Worcester Bosch first began to be recognised as producing hard-wearing boilers. Since then they have improved on this model further with every revision, culminating in their new 8000 range. It is built on similar foundations as the Cdi so you can be assured that it is reliable.

Photo of Baxi Boiler with a 10 year warrant badge

Baxi Combi Boiler Installation London

Baxi Boilers were created in the industrial revolution in Britain by Richard Baxendale (an iron founder), who founded the Baxendale Company, which was based in Preston, Lancashire, in 1866. As part of the Baxi Group, Baxi makes well-known Main and Potterton boiler brands. Baxi boilers are a great replacement for conventional boilers. They also make the Main boiler brand, which is affordable for those on a tight budget. Let’s look at some popular boilers from the Baxi range:

Baxi 800 Combi
Another choice of London homeowners is the Baxi 800; made in the UK with top-quality brass components. The boiler and heating system are protected by the Adey Micro2 magnet system filter. It can be placed inside a standard kitchen cabinet. The EasyFill makes it simple to top up central heating system pressure without calling an engineer. It can also be used with 20% hydrogen gas. You get a 10-year parts and labour warranty.

Viessmann Combi Boiler Installation In London

Viessmann has been around Europe for over 100 years now and is becoming increasingly sought after in the UK as well. Their boilers are renowned for their top-notch quality and reasonable prices, so it’s no shocker that they are so popular. The Viessmann Vitodens 050 Combi is the most basic and lowest cost boiler in their range, but don’t let this stop you from considering one – it still provides a great level of dependability and build quality that rivals even the priciest models from Vaillant and Worcester Bosch. It also comes with a 10 year guarantee which makes it an ideal choice for properties with one bathroom.

For those who want everything at once, take a look at the Viessmann Vitodens 111 Storage Combi – you won’t be disappointed! You don’t need any external hot water cylinders or tanks with this boiler, helping you save space, plus you get decent hot water performance close to that of an unvented hot water cylinder – so it can handle two showers running concurrently. This is all possible because of its built-in hot water tank which gives more power to the hot water.

Glow Worm Combi Boiler

Glow Worm Combi Boilers London

Homeowners in London love Glow Worm boilers as they provide great value without sacrificing quality or performance. A hardworking boiler that won’t cost too much but will still last you many years – perfect for those who want practicality instead of luxury features. Since they are now part of the Vaillant Group, all Glow Worm models come with the same high standards expected from all other products from this company. So which ones should be on your list?

Glow Worm Energy Combi

The Energy combi-boiler was made at their Belper facility – fitted with an aluminium heat exchanger for maximum durability whilst also ensuring low energy consumption costs. This model operates very quietly so you won’t have to worry about any disruptive noise, plus its small size and rear flue option make it easy to fit into restricted areas such as kitchen cabinets. It also comes with a Grundfos-modulating pump which saves on energy expenses by automatically adjusting itself according to your hot water and heating needs.

Get Your free Quote

If you would like a free quote for a new boiler installation, please give us a call on 0208 154 5338, or fill out the form on this page, and we’ll be in touch!

Locations We Serve

Looking for reliable and efficient boiler installation, servicing and repair services in London? Look no further than us.

We cover:

Islington, Westminster, Tower Hamlets, Hackney, Camden, Lambeth, Kensington and Chelsea, Greenwich, Haringey, Lewisham and many other areas!

If you’re not sure if we cover your area, please give us a ring to check: