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Gas Boiler Replacement

If you’re looking for a gas boiler replacement, this quick guide is going to cover everything you need to know. We’ll be explaining:

  • Gas boiler replacement costs
  • Potential savings on offer by installing an energy efficient appliance
  • The best boiler brands on the market

Gas Boiler Replacement Costs

Having a new boiler installed isn’t cheap. The cost of a replacement is going to be determined by a few things including:

  • The size of the boiler you need (in KW)
  • Whether or not your gas main needs upgraded
  • The type of boiler you need (combi, regular or system)
  • Whether the boiler needs to be moved to a new location
  • If you need a system upgrade (converting your boiler from a system or regular, to a combi)

At the lower end, a small and cheap combi boiler that’s a straight swap, could be under £2,000. However, when we start talking about larger combis, moving them to a new location, or even system upgrades, the cost can be higher. That begs the question. Who has that kind of spare cash lying around?

Interest Free Boiler Finance

Here at Prime Time Boilers, we know that a gas boiler replacement isn’t something that’s planned. When a boiler breaks, it does so unexpectedly. But it needs to be replaced as soon as possible. And that’s why we’ve developed a range of interest free plans for gas boiler replacements.

Our finance packages can be tailored to suit your financial situation, including:

  • Plans from £9.99 per month
  • 0% deposit
  • Payment holidays – get your boiler installed now, and have a delayed initial monthly repayment

Sound good? Fill out our gas boiler replacement quote form, and we’ll book in a free home survey.

British Gas Boiler Replacement Finance

How does that compare with other companies offering boiler finance? A typical example would be British Gas’s boiler replacement finance package. At time of writing, they’re offering a 14.9% APR (variable) on their installs, over a term of 5 years. With the exact same monthly payment, our interest free package would be just under 4 years, 3 months. That’s right. Due to the additional 14.9% interest, you’d be paying off your boiler for nearly another 9 months with British Gas!

Savings From A Gas Boiler Replacement

What most people don’t realise, is just how energy inefficient old boilers are. A modern A-Rated boiler could offer up to £320 per year in energy savings, when compared to an old G-Rated boiler. If you’ve noticed in our interest free finance plans above, the savings you’re seeing on electricity and gas, could pay for your boiler.


Savings of up to £320 per year, work out to £26.66 per month. And our payment plans start from as little as £9.99 per month, with no deposit!

The Best Brands For Gas Boiler Replacement

So, which is the best boiler for your property? Now, this is subjective. One boiler may be a perfect fit for one property, but not for another.

When spec’ing a boiler for a property, we need to consider:

  • The size of the property
  • The number and size of towel rails/ radiators
  • The hot water demand from the people inside the property

One thing we can say, is we only fit boilers from leading brands that offer:

  • Proven reliability
  • A long warranty
  • Excellent technical support

So, which brands do we choose to install?

  • Ideal Boilers
  • Vaillant
  • Worcester


Before checking out the three best boiler brands on the market, consider this. Most budget boiler brands offer a maximum of 2-years warranty on most of their products. In terms of boiler warranties, this is incredibly low. When investing this kind of cash, you want to be aiming for a warranty length of 5 years or more. Why? Not only does this guarantee you’ll have no expensive repair bills for a much longer period, it confirms the quality of the product you’re buying.

Manufacturers always try to offer the biggest warranty possible, as it’s a huge selling point. A boiler with a small 2-year warranty attached, confirms that the product is inferior compared to what’s on the market (i.e. 5 years and above). It may save you £100-200 now, but when your boiler fails years before a premium brand would, you’ll be looking at a lot more than that if something does go wrong. Investing a small amount extra now, could end up saving you thousands over the coming years.

Worcester Bosch

Finally, we have the most well-known boiler brand in the UK; Worcester Bosch. In a recent survey by Which?, they scored a 92% approval rating from existing customers. And, that managed to secure them the top spot in the survey of best boiler brands, for the 7th year in a row. Worcester Bosch come highly recommended from us, and 100s of boiler installation engineers throughout the UK.

The lowest warranty on offer is 7-years. But, by combining other Worcester branded products (such as heating controls and filters), as well as using an accredited engineer, this warranty can be up to 12-years. All of our Worcester Bosch boilers come complete with a 12 year warranty as we are Worcester Bosch Gold Approved Installers.

Ideal Boilers

Ideal Boilers are a British manufacturer, and are fast growing in popularity. They sell over 10,000 units per year. Their range now includes something to suit every budget and every property, but their two top products are:

  • Ideal Logic Max, complete with a 10-year warranty
  • Vogue MAX, complete with a 12-year warranty

All their boilers are A-Rated, with the majority offering over 89% efficiency. Compare that with an old G-Rated boiler with energy efficiency of less than 70%. That equals some big cash savings for you.


Vaillant are a highly underrated boiler brand, overshadowed on many occasions by Worcester Bosch. This is partly due to people outside of the heating industry not knowing how reliable they are. In the Vaillant range, the EcoTec is one of their most popular products. You’ll be able to grab a standard warranty of 5-years, extended to 7 and 10-years when using accredited installers like us.

Get Your Gas Boiler Replacement Quote

Ready to get your gas replacement quote? Fill out the quote form on this page, and we’ll have a Gas Safe engineer offer a free home survey, and suggest the most suitable boiler for your property.

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10.9% APR Representative Example: Cash Price £1,800. Deposit Payable £1,056.00. Total Amount of Credit £744.00. Total Interest £455.24. Total Amount Repayable £2,255.24. Repayable by 120 monthly instalments of £9.99. Representative 10.9% APR (fixed). Rate of Interest 10.9% a year (fixed). Duration of Agreement 120 months.
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What's Included With Your A-Rated Boiler

Up-To 12 Year Manufacturer Warranty

24 Month Workmanship Warranty

Magnetic Filter

Limescale Filter

Chemical Flush

Free Hive Thermostat (Worth £300)

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