Best New Boiler Deals on the Market in 2023 [And What to Avoid]

Looking for a replacement boiler and feeling overwhelmed by all the promotions? You’re in the right place — in our guide, we’ll demystify the process and help you find the top new boiler deals in 2024.

Here, you’ll learn how to choose the best boiler deal for your situation, whether to get financing, and which companies to pick for boiler installation.

What Your New Boiler Offers Should Include 

Before we jump into the types of boiler replacement deals on offer, it’s important to understand what such offers should include.

Itemised Quote

When browsing through new boiler offers, you may come across a deal that looks reasonable — but without an itemised quote, you’ll have no idea what exactly the installer has quoted and what they may have left out. Always request an itemised quote so you can perform an accurate assessment of what each installer is offering you in the boiler installation package. You’ll want to consider the following:

• Boiler filters should be included in the installation
• The quality of the brand being used
• The warranty period of the specific boiler (don’t settle for anything less than 5 years)
• Boiler kW output, and therefore, cost and carbon footprint
• Whether or not the company offering the price quote is an accredited installer

You can get an anonymous, fixed price boiler quote online without sharing any personal details on Heatable. They fit Worcester Bosch and Viessmann boilers, cheap as chips.

Boiler Protection

Good new boiler deals should include boiler protection. Not all installers will include preventive measures to safeguard your boiler from blockages. Limescale (more important in hard water areas) and heating sludge are big problems. As a minimum, a quality installer should include the following in all their new boiler offers:

• Hot flush your system to remove loose heating sludge
• Dose the system with inhibitor
• Fit a magnetic system filter
• Limescale filter fitted (essential in hard water areas)

Always check to see if the boiler deals you’re being offered include these elements, especially the filters. Both these filters protect expensive boiler components, such as the heat exchanger and pump. A blockage can easily form if your boiler isn’t protected from heating sludge and limescale. And, boiler repairs are never cheap.

For instance, a new pump could cost £250, where as a heat exchanger replacement could set you back as much as £500! Make sure these preventative measures are put in place to protect your boiler.

Brand & Warranty

Try to get your new boiler installation quotes from leading brands only. There are plenty of inferior boiler brands out there, and opting for one might allow you to save £100-300 on boiler prices, or around 10% on the full boiler replacement cost.

But, there’s a good reason you’re paying less: Cheap brands are usually unreliable and come with pitifully short warranties.  The small premium a reputable boiler brand commands, along with a long warranty, are worth it in the long run — it’s always wiser to pay £100-300 upfront instead of forking over £2,000 on a replacement boiler 3 years down the road.

We’d always recommend a minimum of a 5-year warranty from leading gas boiler brands, such as:

• Ideal Boilers
• Baxi
• Vaillant
• Worcester Bosch
• Potterton

Another thing to note, is that not all warranties are clear cut; you can find bonuses if you know where to look. For instance, Ideal Boilers (Logic & Logic+) come with a long warranty. But, as an added bonus, the heat exchanger comes with a 10-year warranty. That’s piece of mind, considering a replacement heat exchanger could cost up to £500.

Alternatively, Heatable offer excellent boiler deals complete with a 10-year warranty. Their prices on Worcester Bosch appliances are among the most competitive. You can use this form to get an on-screen boiler price in less than 2 minutes.

kW Output

As you comb through the boiler cost estimates, pay attention to the boilers’ heat output in kW. For instance, some smaller properties could use a 24kW, but a 30kW might offer a much-needed boost when there’s high hot water demand.

For gas boilers, the price difference between a 24kW and a 30kW model could be £100-150. So, if you’ve got two quotes that are the same price, but one’s offering a higher kW model, that’s better value for money.

Note that this is why most people don’t buy boiler package deals online. Instead, they leave the boiler purchase to the engineer. The heating engineer offering your boiler installation deals will be able to spec your property correctly to ensure that the boiler is powerful enough.

To summarise — make sure your new boiler is spec’d correctly. Heatable’s 90-second boiler survey ensures you get the right boiler, at a low price.

Final Note

Don’t be afraid to get more than one price quote when looking for a new boiler. You’ve got a tonne of options, including:

• Paying on completion
• Boiler finance
• Boiler grants

The more itemised quotes you get, the easier it will be to determine which one offers the most value overall, not just based on price.

Types of New Boiler Deals for Your Home

Should You Consider “Pay-on-Completion” Deals for  Boiler Replacement?

Where possible, you’ll get the best new boiler deals by paying on completion.

Even if you’re trying to buy a new boiler and you don’t have the cash, borrowing a small loan amount is a better option than getting finance (even when the finance deal is 0% APR, ironically).

Large National Companies

There’s a good chance you’ve seen multiple national firms, the likes of British Gas, offering new combi boiler deals, scrappage discounts, and cheap boilers fitted. Typically, we’d expect the cost of a new boiler from a national installer to be roughly £600-1,200 higher than from a specialist local company.

Why? It’s like any large brand. National companies like British Gas have huge marketing budgets that include TV ads, have hundreds or more employees, and therefore, a lot more overheads to cover on top of the typical labour costs.

So, regardless of the timely deal they’re offering (£300 off when you scrap your old boiler etc), this is still likely to be one of the most costly ways to get a new boiler fitted.

Local Boiler Installers 

That’s not to say you SHOULDN’T explore finance options, or consider new boiler offers from national companies. In fact, it’s always wise to get as many quotes as possible and do as much research as you can.

The more quotes you get, the better you’ll be able to understand each line in the itemised quote. This way, you’ll be able to weed out deals that don’t include certain essentials — like the crucial preventative measures we discussed above.

For instance, 2 installers might be offering a a new combi boiler for £2,000, including boiler installation cost and VAT.

But, do they both include upgraded heating controls, and a magnetic system filter to protect your boiler?

We’d always recommend getting multiple quotes from qualified installers (you can do that here). But if you’re heading straight for a Worcester Bosch, the best fixed price you’ll find on combi boiler installations is likely from Heatable.

What are the Benefits of Buying Boilers on Finance?

There’s been an influx of installation companies acting as a credit broker and offering finance deals on new boilers. And, if you’ve not got the cash, it’s not always the worst idea.

Firstly, because if you’ve got an old boiler, you could be saving up to £840 on energy bills (according to the Energy Savings Trust), not the mention prohibitive repair costs. Essentially, a new boiler could actually pay for itself.

Boiler finance deals can range from 0%, to just above 20%. But, it’s not all as simple as it might seem.

Interest-Free Credit Boiler Finance Deals

It’s not just the APR percentage that you need to focus your attention on. You REALLY need multiple itemised replacement quotes, both from companies that offer finance and those that don’t.

For example, a company charging £3,000 for an install that typically costs £2,000 won’t have problems offering you 0% finance.

But, the better option here would be to go with the more competitive installer and get a short term loan with lower boiler installation costs.

And, don’t be put off by companies offering a deal with a higher APR. Rather than the APR, look at the “total cost payable”, including the replacement AND the interest.

£20-30 Per Month Boiler Replacement Deals

Most boiler deals that incorporate finance will sit in the £20-30 range. That seems like a good buy, given that most people’s mobile phone bill is almost twice the price.

But, like with 0% boiler finance deals, you’ll want to get multiple quotes and keep an eye on the TOTAL final price. For instance, you might be able to get a better APR deal and a lower monthly repayment by putting down a small deposit.

Should You Get Boiler Finance?

If you’re able to pass the credit checks, you should always get at least 2 quotes for boiler finance deals.

Also, consider other payment options, such as getting a quote that doesn’t require finance via a boiler company. Approach companies that offer payment on completion, and consider getting a loan — it usually works out much cheaper this way. We’ve written a full guide to getting new boilers on finance here.

Did You Know There’s a Free Boiler Replacement Scheme for Pensioners?

If you own your own property, it’s unlikely that you’ll be eligible for a free boiler. However, there are some Government-run schemes that make free replacements possible for homeowners; particularly for pensioners.

ECO (Energy Company Obligation)

This is the Government scheme in England, Scotland, and Wales.

To qualify for a free boiler, you’ll have to be receiving the Pension Guarantee Credit, and be over 60. Your property will need to use gas, oil, or LPG.

Northern Ireland Boiler Replacement Scheme

For those in Northern Ireland, there’s the Boiler Replacement Scheme.

You’ll be able to receive a Grant of up to £1,000 to get a new combi boiler if you have a household income of £40,000 or less, had a boiler installed over 15 years ago.

Getting Free Boilers

If you’re looking for more details, we’ve already created a detailed guide on getting free boilers for pensioners here.

Which Boiler Deal Should You Choose For Your Home?

If you qualify for a free boiler with no strings attached, that’s where you should be heading.

If you can pay for your boiler replacement on completion of the install, that’s usually the way to the get the cheapest new boiler deals.

Whatever you choose, make sure you get multiple quotes for boiler replacement prices. You could compare finance quotes with a local installer that requires payment on completion, and even national firms like Heatable. You’ll be surprised how much you can save by simply shopping around.

Vetting Your Boiler Installer

As a final note, you’ll want to do a quick background check on your installer before accepting their new boiler offers.

For those looking for gas combi boilers, the first check is the Gas Safe Register. You can check that your engineer is qualified to fit your boiler on the register here.

And if you’re like me, it’s always wise to check out any online reviews for the company you plan on using. That means searching on the likes of Google, Yell, FaceBook, Yelp, and even Trust Pilot.

FAQs on New Boiler Deals

Before we wrap up, let’s go through some of the questions we often get about new boiler deals.

What is the average cost of installing a new boiler?

The average new boiler cost, including installation, hovers around the £2,200 mark. But buying a new boiler comes with plenty of variables, such as the brand, model, size (in kW), whether or not you need to move the boiler from its existing spot, and plenty of other factors.

Another thing to take into account is who you hire to fit the boiler. Your local Gas Safe heating experts will charge less than expert engineers from a large, national company. An online installation company like Heatable will also typically be cheaper.

Are back boilers now illegal?

It’s now illegal to install a non-condensing back boiler. However, if you’re using an old back boiler for your central heating system and hot water, there’s no law on the books that would compel you to replace it.

That said, there are plenty of reasons why you may want to replace an old back boiler with a new combi or system boiler. Most back boilers (apart from the Baxi Bermuda BBU HE Boiler) are non-condensing and inefficient; replacing one of these units could help you save on your energy bills over time.

Keep in mind that leaving an obsolete back boiler installed behind your fireplace is dangerous, as the trapped moisture inside the old boiler’s water jacket can expand and cause an explosion when you operate the fireplace.

Is my boiler covered by my house insurance?

A typical home insurance policy does not cover the cost of repairing or replacing a boiler. The best way to ensure that you don’t have to pay out of pocket for repairs is to get a boiler with a long warranty period (5 years minimum) and look into getting a boiler care plan.

What’s Next?

Thanks for reading our guide to new boiler deals — hopefully it will help you upgrade your central heating and hot water systems with an affordable, quality new boiler.

Also, note that we regularly update our blog with useful buyers’ guides. We’ve got guides on everything from the best boilers to install, through to boiler fault finding guides – so, bookmark this page and pop back soon.

And if you’ve got any questions regarding the boiler deals you’re being offered, drop us a comment below and we’ll get back to you as soon as possible.