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Boiler Replacement

UK Plumbing & Heating Specialists Let’s Heat are experts in Boiler Replacement.

Our expert and fully-qualified engineers are highly professional and carry out all of our plumbing & heating repair and maintenance services. This includes the Boiler Replacement Services that you need, to a very high standard.

How to ensure you get the best boiler replacement?

We provide an online Boiler replacement guide that includes what you should be looking for and asking for in a boiler replacement quote. Should you need to replace your boiler, this is provided to help you.

24/7 – 365 Days

Identifying the problem with your boiler!

If you are having issues with your boiler, you might be able to repair the boiler or it might need replacing.

This guide will give you all that you, and we, need to know in order to make sure that you select and buy the correct boiler for your needs or budget.

The four different types of boilers and heating system installs available!

The four main boiler options or heating systems that you can choose from are:

1. Heat only boiler / Heat only boiler Replacement

With a regular heat-only boiler, you will have both a hot water cylinder and a separate cold storage tank.

  1. The Common, Heat Only Boiler
  2. A System Boiler
  3. Combi Boiler
  4. The new Heat Pump!

Advice for older homes

When you have an older home, you might have to continue using this type of boiler. That’s because it is easier and more convenient. There’s also a lot less damage to your house.

These conventional Boilers do not work well with high water pressure, but they are good with the distribution.

This variety allows you to run hot water to one or more than one location for larger homes!

You can get a quote for a heat-only boiler online now via the link!

2. A System Boiler / System Boiler Replacement

Similar to the traditional type, the system model also needs a hot water cylinder. However, with the system boiler, you will find that most of the boiler critical parts and features are part of the system itself.

For this reason, they are often easier to install and need less space.

This can be perfect for small and new homes.

You can get a quote for a system boiler online now via the link!

3. Combi Boilers / Combi Boiler Replacement

The combi boiler, also known as a combination boiler, is now often the most popular choice for new Boilers. This is because it combines a central heating boiler with a high-efficiency water heater.

A combi boiler draws directly from the main lines, so there is no need for a separate storage tank for hot or cold water.

You can get a quote for a Combi boiler online now via the link.

4. A new Heating Pump Replacement

There are two different types of heat pumps: 

Ground Source Heat Pumps & Air Source Heat Pumps.

What’s the difference?

Air Source Heat Pumps

The most common type of heat pump is the air source heat pump. These transfer heat between your home and the outside air.

The heat pump uses heat from air outside your home in the same way a fridge extracts heat from its inside.

Can even heat in the cold weather:

Air source heat pumps become less efficient the cooler it is outside, but they can be capable of operating sufficiently in temperatures of -15 C, which is 99.99% of the year in the UK.

Ground Source Heat Pumps

A ground source, water source or geothermal heat pump works similarly. But the main way it functions is by taking the residual warmth from the soil or a water body outside of your home and moves it to the inside of the home.

These heat pumps achieve higher efficiencies by transferring heat between your house and the ground or nearby water source.

Lower operating costs:

Although they are more expensive to install, they generally have lower operating costs because they can rely on more constant source temperatures.

Energy Efficient and Lower Carbon Footprint:

These heat pumps also have fantastic energy efficiency ratings and although they do have some impact on the environment (as they require electricity to run), but they do not combust fuels directly.  

This means that in most cases they too, provide a fantastic way of lowering your carbon footprint.

What does a boiler replacement cost?

The cost is one of the most important factors, when customers want to buy and have a new boiler.

Please take a look at our Boiler Prices Page because it has a great selection of Boilers and their prices.

How to budget?

The budget and amount to pay for a new boiler is a critical part of the decision-making process. This means that the answer is going to be different for everyone who is looking for a new boiler.

For example, the cost of your boiler installation often depends on the brand of boiler that you choose (see boiler brands on our different types of boilers page or the boiler prices page) 

Different Brands:

Worcester Bosch boilers differ from Buderus boilers, and so on so the actual cost of the boiler can impact the cost of your boiler installation.

Boiler Installation:

Then the rest of your boiler installation cost is based on the hourly rate of the engineers or the installation team that would be installing your boiler.  

It can vary widely throughout the country but here at Let’s Heat we try our best to offer highly competitive rates in addition to the high quality and standard of work that we provide.

This is to make sure that we offer the best value for money offering available in the market place.

Extremely High Work Standards

We have an extremely high 4.9 out of 5 Trustpilot score, given independently by our previous clients.

Please see our 4.9 out of 5 Trustpilot scores for assessment of our working standards via the link below!

Different Boiler System Types:

The cost for your boiler installation will also be dependant on which of the four varieties of boiler installation or heating systems that you decide to go with.

Also what type of boiler that you want or need, can affect the overall boiler installation cost.

Gas boilers are usually the most common type of boilers but there are also oil-based boilers if that’s your fuel preference.

What else do you need to consider?

Other things that affect buying new boilers are things like:

Here at Let’s Heat, we offer you quality boiler installation at highly competitive prices. We  can even provide you with flexible monthly payment options, via our FCA regulated finance options, if you need them.


Comparing boiler replacement solutions and prices:

When it comes to new boilers and boiler replacement services, you should also compare units from the same boiler category.

Take a look at some of the additional factors that you will need to consider. This includes some additional features and benefits that may come up in your boiler replacement review.


Boiler Replacement – How long should it take?

Boiler replacements can take different amounts of time to complete due to such a varied amount of work that is needed for each particular home.  

What affects the install time?

What your home or business needs, in addition to the type of boiler system selected, and the brand will all affect the price and install time.

Type of install and timings:

Combi for Combi

If you have a combi boiler replaced and this is replacing an existing combi boiler, this should take 3-6 hours of installation time.

System for Combi

When you have a system boiler currently and would like to replace that system with a combi boiler, then this would take much longer, usually 1-2 days.  This is because this boiler installation needs much more work to convert the system over.

System for System

Replacing a system boiler with a new system boiler would take about 3-6 hours of installation time as it’s just a like for like swap.

Heat-Only for Combi

A heat-only boiler being replaced with a combi boiler or a system boiler would also take approx. 1-2 days of installation time.

Heat Pumps 

These can vary greatly so please provide us with more details so that we can advise you on a case by case basis.

Can I get a next-day boiler replacement?

Yes, you can get next-day boiler replacement services with Let’s Heat.

If you order your boiler before 12 pm during the colder months, and 2 pm in the warmer months.

This is next-day boiler fitting nationwide in England, Wales and Scotland, so you do not have to be without heating for long, even in the depths of winter.

Not many boiler companies can fit a boiler at such short notice nationwide so if you do require a boiler urgently – get a quote from us ASAP.

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Boiler Replacement energy regulations…

Over the last few years, the UK has passed several government guidelines for boiler installation and energy efficiency. These guidelines need to be followed. please remember:


Finance for your boiler replacement

Buying a new boiler and having a boiler installation is an investment but it can be expensive, especially paying for it all in one hit. You can get the job done on a finance package that is FCA-approved if you don’t have enough money on hand.

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FCA-Accredit Finance

We can also offer a number of split payment options for you to consider.

Boiler Replacement Payment Options

For new boiler installation, you can pay by card, pay zero deposit, and pay monthly over 2 to 10-years or take our a finance package.

So why Let’s Heat for your boiler replacement?

A. Let’s Heat Are Quality & Accredited Boiler Installers

Let’s Heat professional engineers and emergency plumbers provide a professional and reliable emergency plumbing and heating service that includes Boiler Installation, in Cardiff and the surrounding CF postcode area in South Wales.

The boiler installation & repair team are all fully qualified to the highest standards. We take pride in producing exemplary work standards which include completing all boiler installation requirements no matter what time or day this is required!

Our team of high-quality professional engineers has an extremely high 4.9 out of 5, Trustpilot score given by our previous happy customers and we are fully accredited by Gas Safe and Corgi registered, as well as FCA approved for all of our financial transactions.

All of our staff at Let’s Heat are experts in their field and have gathered many years of experience, working on a wide selection and variety of emergency plumbing and heating solutions and services throughout Cardiff, the rest of Wales & the UK.

B. Because we care…

Are you still a little confused about where to start or who to use?

Our easy-to-use online questionnaire will guide you through everything that you, and us, need to know in order to ensure that you have the correct solution for your needs. Additionally, we will ensure that you are completely satisfied with the solution offered prior to completing any works.

Why else?

Get a Quote

You can research your boiler replacement requirements and choose your new boiler and the boiler installation for replacing the boiler online without leaving the house…

If you need a new boiler and installation, don’t hesitate to reach out to our award-winning Boiler engineers team for more information.

We cover everythng you might need, including the full boiler replacement from Our Let’s Heat Team. We replace boilers nationwide and include next-day installation (on orders placed before 12/2 pm in Spring/Summer or Autumn/Winter.

Our staff is experienced and knowledgeable in all aspects of boiler installation services and boiler repair and maintenance, so if you have any further questions please feel free to take a look at our boiler replacement FAQS or contact us, should you have any other questions.

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The full range of heating & plumbing services provided by Let’s Heat are as follows:

Areas covered by our Boiler Replacement Services:

The Let’s Heat boiler engineers cover all of Wales & England


Let’s Heat provide Boiler Replacement throughout Wales, including areas like South East Wales, South Wales, South West Wales, Mid Wales, East Wales, West Wales, and North Wales.

This includes the cities of Cardiff, Newport, Swansea, and all other towns and cities in Wales


Let’s Heat provide Boiler Replacement throughout England, including areas like South West England, South East England, East Midlands, West Midlands, North West England, and North East England.

This includes the cities of London, Reading, Southampton, Portsmouth, Bristol, Exeter, Plymouth, Gloucester, Swindon, Oxford, Leicester, Nottingham, Derby, Birmingham, Worcester, Wolverhampton, Walsall, Liverpool, Manchester, Leeds, York, Sheffield, Newcastle, Sunderland as well as Middlesbrough, etc.

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Any more questions?

If you have any further questions, please see our FAQ Page because you might find the answers there or on our News Blog.  If you want to check out our Gas Safe Registration or want to see our near 5 star Trustpilot rating please click the relevant link!

⭐️⭐️⭐️⭐️⭐ Get a quote online now!