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New boiler cost factors

There are various factors that influence the cost of a brand new boiler. The size of your home, the type of system you need or which brand you’d prefer.

All have costs associated with them, and we want to help alleviate the confusion.

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How big is your house?

There’s a simple rule when it comes to boilers, “The bigger the house the more powerful the boiler”.

A bigger house will often have more than one bathroom and will usually have multiple radiators connected to a central heating system – these factors will always affect how much power your system will require to run efficiently. 

As an example, if you lived in a 2-bedroom house with 1 bathroom and up to 10 radiators, a 24-27Kw* unit will be more than enough power to heat your home efficiently. As another example, if you lived in a 5-bedroom house with 2 bathrooms and over 20 radiators, then you’d be looking at a powerful unit of 35-42kw*.

Power will seriously affect the price – just remember the more powerful, the more expensive the price.

*Boiler power is measured in Kilowatts (Kw) so the higher the Kw the more powerful it will be. 

Types of boiler combi regular system boilers

What type of boiler do you need?

We’re always asked what the best type of boiler is, but the answer isn’t quite as simple as you’d think. The best type is one that’s efficient for your home – so you’ll be using less energy to provide the best heating performance and save more money on your gas bills.

The best type for one home may be incredibly inefficient for another. 

Boiler on the Blink? 

Get a brand-new boiler from only £1,549!

There are a wide range of things to take into consideration when working out just how much a new boiler will set you back.

However, at Boiler Plan, we like to keep our prices competitive whatever the circumstances, with prices starting at just £1,549 and finance options available, enjoy the peace of mind that comes with a brand-new energy efficient boiler.

Just a few clicks and you could be getting:

  • Lower Energy Bills
  • Up to 10 years Manufacturer Warranty
  • A Free Smart Thermostat
  • Flue Kit worth £100 rrp
  • Magnetic Filter worth up to £100 rrp
Get a fixed price quote today

Boiler brand and model

There are a number of manufacturers in the UK such as Worcester Bosch, Vaillant, Ideal, Baxi, Potterton and even ourselves – all of which offer a similar range but often differ in price. Sometimes the price is in relation to having a perfect reputation – but you could pay a higher price just for a brand name.

As price is a big deal for most people, there’s always the option to purchase a budget system – but they will often offer shorter life spans, shorter warranties and reduced levels of customer support. Whilst they are cheaper to install, they tend to be more expensive to maintain and less efficient to run in the long term.

Below are a sample of companies we work with and would highly recommend. Many of which offer a 10-year warranty, so there’s no reason to pay for expensive cover, and you’ll have total peace of mind knowing your system will be guaranteed for the next decade.

Worcester Bosch is the UK’s most loved heating brand, and their range of Worcester Bosch Boilers has led them to receive the coveted 'Which? Best Buy' awards for nine years running. Worcester have also received a Royal Warrant for supplying their systems to Her Majesty The Queen’s Sandringham Estate.

As one of Europe’s leading heating technology manufacturers, Vaillant boilers have been setting heating standards for over 140 years. Vaillant products feature high energy efficiency ratings, low emissions, and have an excellent reputation for performance, quality and reliability.

We know boilers better than anyone – that’s why we manufacture our own, the Erik31HE. Using only the best materials and parts, to make it more reliable. But quality doesn’t just start with our product. It starts with our customer service and ends with our aftercare. If we can’t repair your Erik31HE within 48 hours of call out, we’ll replace it or offer you a full money-back guarantee. We’re so confident that we’re the ONLY company to offer this guarantee. If Erik31HE doesn’t make you smile, we’ll give you your money back.

Ideal boilers are reliable and competitively priced products. Ideal lead the industry in setting new standards and challenging technological boundaries. With over a century of central heating manufacturing experience, Ideal remains at the forefront of the domestic and commercial heating markets.

Baxi boilers are high-efficiency units that are straightforward to install, maintain and service – they’re also incredibly easy to use. Baxi’s ethos of pride, passion and positivity – combined with reliability, respect and innovation – has helped define their company.

All Potterton boilers use the latest heating technology to ensure they all meet the energy efficiency requirement and are environmentally friendly. Their units have a reputation for being extremely dependable and easy to use – demonstrated by their seven million customers across the UK.

Ways to Pay for a New Boiler

We understand that having to unexpectedly replace your boiler isn’t the most enjoyable way to spend your hard-earned cash. However, by taking up a payment plan with Boiler Plan, you can make the whole thing a lot more painless.

By making small monthly payments instead of one upfront sum, you could help take the sting out of replacing your boiler.

Choose from:

You can still pay in full if you'd like, as we accept all major Credit/debit cards. Deposit required.

Get a fixed price quote today


The cost of a new boiler really does depend on a range of factors. 

We understand how precious the pennies are for many people, and a new boiler is often associated with a huge lump sum at a very inconvenient time. By offering monthly payment plans we can open the market to those who in the past couldn’t afford an A-rated energy efficient system; those who instead would have bought an inefficient budget unit as a cheaper option but would have been stung with a pricey gas bill. 

When it comes to either constantly repairing your old system or buying a new one, then it’s always best to replace every decade to make sure your heating is energy efficient. 

The price of a new boiler plus installation will range anywhere from £1,549 – £3,200; depending on how much work is required. We’d recommended you book a free home survey to get a Gas Safe engineer to come to your home and inspect how much work is required. When they’ve completed surveying your home, they’ll offer a no obligations quote that’s valid for 28 days, so you have time to research what’s best for you.

We hope that’s cleared up some confusion, and whatever your heating needs are, just know we're here to help on your journey to a warmer home.