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How Much is a New Boiler?

How much is a new boiler?

How much is a new boiler?

A new boiler costs between £1,500-£4,500 on average which includes installation from a Gas Safe registered engineer.

How much is a new boiler and how do we know? We’ve researched the current prices of the most popular boilers on the market and balanced it with our 10 years of working with a network of over 5,000 registered installers.

Here’s what we found out.

How Much is a New Boiler

Brand Price of Combi Boiler (typical) Price of Regular / System Boiler (typical)
Worcester Bosch £875 – £2,600 £700 – £2,400
Vaillant £850 – £1,500 £800 – £1,300
Alpha £700 – £2,000 £800 – £1,400
Viessmann £900 – £1,400 £900 – £3,500
Vokera £800 – £1,100 £500 – £3,500
Main £500 – £650 £600 – £650
Average Price Range £780 – £1,540 £716 – £2,140

On average, a new boiler could cost between £750 – £2,140, but it is possible to find them for as little as £550. Find out which is the best cheap boiler.

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Installation and Additional Costs

What’s involved? Approximate Labour Cost Additional Costs to Consider Total Cost
Replace condensing boiler with new condensing boiler, same location Chemical / mechanical flush of pipework £500 – £650 Powerflush = £250 – £500 £750 – £1,150
Replace non-condensing boiler with condensing model, same location Chemical / mechanical flush of pipework

Checking gas supply, changing position of flue

£650 – £760 Powerflush = £250 – £500

Pipework = £200 – £300

£1,100 – £1,560
Install a new condensing boiler in new location with heating system upgrades Chemical / mechanical flush of pipework

New pipework

Adding a condensate drain, routing the flue

£1,100 – £1,500 Powerflush = £200 – £500

Pipework = £200 – £300

£1,500 – £2,300
Replacing a heat-only boiler with Combi Chemical / mechanical flush of pipework

Converting from an open-vented to sealed system

Removing old cylinder / water tank

New pipework / adding condensate drain

£1,400 – £2,000 Powerflush = £200 – £500

Pipework = £200 – £300

£1,800 – £2,800

Installation could cost you between £750 – £2,800 depending on the complexity of the work involved.

Boiler Cost Conclusion: To purchase a new boiler and have it installed you are looking at an overall cost of between £1,500 – £4,500.

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Get tailored quotes for your replacement boiler by completing our simple enquiry form today. We will be in touch in a matter of hours to confirm your details and boiler requirements before putting you in touch with up to 3 reputable installers in your area.

Additional Costs to Consider

Often it is not as simple as installing a new boiler, hitting the on button and forgetting about it. Depending on the existing system you have in place and how old it is, a competent installer may well recommend extra work to ensure your new heating system works to its full capacity.

This may include some of the following services:

  • Moving the location of the boiler
  • Removing old equipment, e.g. storage cylinders or water tanks
  • Adding or replacing radiators
  • Mechanical / chemical flushing of pipework (recommended)
  • Installing thermostatic radiator valves (TRVs)
  • New thermostats and smart programmers
  • Ongoing annual aftercare / servicing plan

Make sure you ask for an itemised quote from your installer as prices for these services can vary considerably between installers. You can then ensure you are comparing like for like and make sure you’re getting both a quality service and a competitive deal.

Boiler Guide can provide you with up to 3 quotes from Gas Safe registered and reputable installers. All you need to do is complete our quick and simple enquiry form and we’ll be in touch in a matter of hours to help you get the most competitive price for your new boiler.

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If it’s time to replace your current boiler, use our free service to get quotes now


How Much Could a New Boiler Save You?

When faced with a substantial upfront cost like a new boiler it’s important to consider the long term benefits. The main benefits in this case being improved energy efficiency which will deliver both lower energy bills and reduced carbon emissions. The efficiency of a boiler represents the money you are wasting on lost energy. For example, if your boiler is only 70% efficient, you are losing 30p of every £1 you spend on your energy bills to wasted energy.

By installing a new A-rated, gas condensing boiler with a programmer, thermostat and TRVs in place of an older boiler with a programmer and thermostat, you should be able to achieve efficiency of 90% or higher. To illustrate what this means in the long term, you could make the following annual savings on your energy bills:

Old boiler efficiency rating Flat (mid-floor) Mid-terrace house Semi-detached house Detached house
78-82% D £55 £100 £110 £170
74-78% E £60 £105 £125 £190
70-74% F £70 £125 £145 £220
<70% G £100 £180 £210 £320
Average annual saving £71.25 £127.50 £147.50 £225
These figures have been taken from the latest research by the Energy Saving Trust using fuel prices in April 2017. Savings will vary depending on the size and thermal performance of your home.

Yearly Savings Conclusion: Installing a new A grade boiler could save you, on average, between £71.25 and £225 on your annual heating bill but savings could be as high as £320.

Finance Options

For many people the prospect of paying for a boiler installation in one lump sum is not affordable, but there is hope!

There are a variety of finance options available to help you spread the cost over a period that suits you through affordable payment plans. If you think boiler finance could be the best choice for you, visit our Boiler Finance page for more information.

You can learn more in our guide to new boiler replacement & installation costs

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If it’s time to replace your current boiler, use our free service to get quotes now


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