New Boiler Installation vs Boiler Repair


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Are you still dealing with an old, tired boiler repair? Did you know sometimes fixing and maintaining your boiler is pricier than getting a new one? So instead of waiting for it to give out, think about the benefits of getting a new model. In fact, a new, energy-efficient boiler will cut your monthly bills. Moreover,  you won’t be stressed about sudden boiler breakdown or leakage. 

In this blog, we’ll explain the costs of getting and installing a new boiler. This will help you make smart decisions to keep the average cost down.

Is boiler repair with investing?

Without a doubt, a broken boiler can be a real hassle for you. The big question is whether to repair an old boiler or get a whole new model. This is often confusing. Some people keep patching up their old boiler. However, they don’t know this can get expensive over time. Newer boilers are better in many ways. 

They last longer, work more efficiently, and are better for the environment. So if you’re constantly calling for repairs, it might be time to consider replacing your boiler altogether. Moreover,  there’s good news! With eco4 scheme, you may get a brand-new boiler for free.

Reasons to replace your boiler?

Well, instead of boiler repair, its replacing offers several advantages. New boilers can significantly lower your heating costs. Plus, they’ll save you money in the long run. Even if your old boiler seems functional now, it could completely break down all of a sudden. What’s more, modern boilers are more energy-efficient than older models. 

They also help the environment. Plus, they come with warranties. Consequently, you gain peace of mind. On top of that, if you don’t replace your unit,  finding parts for very old boilers can be difficult. But new models don’t have such issues. Finally, some warning signs like slow heating, strange noises, leaks, or low pressure indicate it might be time to consider replacing your boiler.

What to do before boiler replacements

Before replacing your boiler, consider a few DIY fixes that might resolve several problems.

  • Firstly, check if your boiler is under warranty. Contact the manufacturer to see if it’s covered to save on boiler repair.
  • Secondly, a common issue is a frozen condensate pipe. Use warm water to defrost it yourself.
  • Next, ensure your thermostat is set correctly, especially for smart thermostats.
  • Now, bleed your radiators to remove trapped air. This might improve heating. Also, look for leaks in the system as well.

But, if these DIY solutions don’t work, call a registered engineer for assistance. Expect a call-out fee plus additional boiler repair cost.

Pros of repairing a boiler

If your radiator is whistling, it might be because the drain valve is open. In some cases, they may be utilized to create a whistling sound when left slightly open. Before you proceed, turn the valves counterclockwise to ensure they are all closed. This ought to put an end to the whistling if it is coming from the valve.

You likely have another problem if the whistling continues. Inside the system, there is air that is trapped. Another potential reason for your radiator whistling might be air that has been trapped within the system.

Cons of boiler repair

Repairing a boiler isn’t always the best idea. Especially if your boiler is old, it might break down more often and need more repairs. Consequently, it can cost you more in the long run. Also, you should know when boilers cross their lifespan, they lose their efficiency.  As a result, you could end up with higher energy bills. So if your boiler is way past its best days, switching to a newer, more efficient model could be smarter a decision.  It will save you money overall.

Pros of boiler replacement

Firstly, a new boiler is much better at saving energy than an old one. It can cut your heating costs by up to 30%. Also, it comes with a warranty, so no costly repairs for years. It makes your home warmer and cosier. Moreover, new boilers are safer than old ones. They have features that stop gas leaks and other dangers. So with a new boiler, your home is secure.

Cons of boiler replacement

The main downside is the cost of replacing a boiler. It’s a big expense, so consider your budget. But remember, a new boiler saves money in the long run, and you might get financing or rebates to help.

New boiler costs in the UK

Type of boiler

Cost excl. installation

Cost inc. installation

Average inc. installation


£450 – £3,500

£1,600 – £4,600



£600 – £3,600

£1,600 – £5,000



£550 – £3,600

£1,700 – £48,00



£600 – £2,600

£1,600 – £35,00



£5,000 – £13,000

£7,000 – £22,000


The cost of the boiler itself (excluding installation) can range from £500 to £12,000, depending on the type of boiler. Combi boilers are generally the cheapest, while biomass boilers are the most expensive. Installation costs typically range from £1,000 to £1,500 on top of the boiler cost. The average total cost of a new boiler, including installation, can range from £2,795 for an electric boiler to £13,500 for a biomass boiler.

Additional Factors to Consider

  • The size of your home: You’ll need a boiler that’s powerful enough to heat your home efficiently.
  • Your energy usage: If you’re looking to save money on your energy bills, you’ll want to choose a boiler with a high energy efficiency rating.
  • Your budget: Boilers can be a significant investment, so it’s important to factor in the total cost of ownership when making your decision.

Boiler replacement grant for low-income households


Are you in a low-income household? You might be eligible for a free grant to replace your old, inefficient boiler with a new one. This government program will end your worry about your old boiler repair. It aims to cut down on pollution, make homes more efficient, and reduce energy bills.

No matter if you’re retired or receiving government support, you can apply for this grant. Now, are you wondering how to qualify? Just give us your postcode. If you’re approved, we’ll handle everything, from checking your home to installing the new boiler, all for free. It’s that easy.

How do free boiler grants work?

Getting a free boiler grant usually starts with a homeowner applying through a specific channel. If they meet the criteria, they might receive a grant or voucher. This can help pay for buying and installing a new boiler.

Eligibility criteria for free boiler grant scheme

The UK’s ECO4 Scheme aims to cut fuel poverty and lower carbon emissions. To qualify, homes need an Energy Performance Certificate (EPC) rating below D. Low-income households and pensioners can apply without paying upfront.

Applying for the ECO4 Scheme is simple. Whether it’s for central heating, an air source heat pump, or a free boiler, it’s just a few clicks away. Swap your old stuff with this government-funded grant. To be eligible, look at the following:

  • Own your home.
  • Prove your income below a certain level.
  • You’ve got a non-condensing boiler.
  • Your boiler is older than 2005.
  • Your Energy Performance Certificate (EPC) is lower than D.

New Boiler Grants in 2024

The UK government fully funds the New Boiler Grant 2024. It aims to give free energy-efficient boilers to low-income households, replacing their old ones. Furthermore, it can cover costs up to £10,000 for households getting Child Tax Credit, Working Tax Credit, Income Support, and more.

Grant For New Boiler UK

This grant helps low-income households switch to energy-efficient boilers. Moreover, these boilers save energy, cut carbon footprint, and reduce energy bills. Check your eligibility and start saving on your heating costs.

Boiler Replacement Scheme British Gas

This is another wonderful scheme to get a new, eco-friendly boiler. It covers up to £10,000, making winters cosy without financial strain.

Government Grants For New Boilers

Under the ECO4 Scheme, government grants provide free new boilers to UK households in need. So if you get government benefits, check your eligibility by giving your postcode. Once qualified, we’ll will handle everything else.

Back Boiler Replacement Grants

Now, you can replace old back boilers with energy-efficient ones using Back Boiler Replacement Grants. Consequently, you could receive up to £10,000 to upgrade your boiler.

British Gas Boiler Replacement Grant

Inefficient gas boilers can harm the environment and your budget. So apply for the British Gas Boiler Replacement Grant to get a new boiler for free, saving up to £9,000.

Old Boiler Replacement Grants

Replace your old boiler with a new, efficient one using Old Boiler Replacement Grants. This grant covers the cost, making it accessible to low-income households.

Special Grants For New Boilers For Pensioners

Pensioners over 60 can apply for special grants to get a new boiler. So if you’re the one, you can enjoy a warm and cosy home in retirement with a grant covering up to £10,000. But, you must apply before March 2026 to take advantage of this opportunity.

Bottom line

In conclusion, choosing between a boiler repair and a new boiler requires careful consideration. While repairing may seem cheaper upfront, investing in a new boiler offers long-term savings. Moreover, newer boilers come with warranties and safety features, providing peace of mind. Ultimately, the decision depends on factors like the boiler’s age, condition, budget, and energy efficiency goals. On top of that, you may also qualify for free boiler grants.

Get Your ECO4 Grant

Simply enter your postal code and answer a few questions, we’ll handle the rest!

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