Broken boiler. Never have two words struck more fear into the careful, conscientious homeowner than these. Nightmare stories about spiralling costs, lengthy repair jobs and cold showers in the depths of winter linger long in the memory, and as such, any unusual sounds or activity from your boiler rings immediate alarm bells.

Indeed, with the average cost of installing a new boiler between £3,000 and £5,000, there’s no denying that buying a new boiler is expensive – that’s how it is and there really is no way around it. There are, however, a few precautionary measures to take and questions to ask to make the purchase more prudent. These are those; our 5 IDEAL things to consider before you get a new boiler installed.


The more reliable your new boiler is in the first place, the less likely it is that you’ll have to fork out on repairs. Now that’s an incentive to pick a reliable brand if ever there was one. Indeed, the importance of a dependable investment can’t be overstated. According to a study by Which magazine, if you choose a reliable boiler brand, a whopping 63% are likely to still be fault free after six and a half years. So, whether you’re considering Corgi HomeHeat Boilers or another brand with a similar reputation, do your research thoroughly prior to purchase.


Yes, there are decisions to be made way beyond which brand of boiler you prefer. There are also myriad types of boiler on the market, each appropriate for different types of home and lifestyle. A combination boiler is perhaps the most popular variety out there and great for space saving as you don’t need an additional cold water tank or hot water cylinder. It’s also pretty economical as the combi only heats water as and when you need it. However, as with anything, there are drawbacks; if you use more than one tap at a time, it could reduce the flow of hot water, which is a pain (literally, sometimes, as a surprise surge of boiling water can take you by surprise in the shower). Also, your water may take a few more seconds to heat up than other varieties. Other boilers to consider include the conventional boiler and a system boiler, each with their own merits and pitfalls.


The hidden costs of replacing your boiler can be much higher than you expect. As such, if you’re looking to have a new boiler installed, it’s vital to take these into account to keep your budgeting honest, on point and precise. Some things to bear in mind include:

  • PIPEWORK INSTALLATION: Any new system needs to be plumbed in, and there’s the chance that your existing pipework might not be suitable for the new system. Plumbing might need to be upgraded which is a substantial job and accounts for a large percentage of the overall cost.
  • RADIATORS: You might find your existing radiators need to be either bigger or more effective to make the most of the new heating setup. Costs for these will, of course, be influenced by the number and size of rooms.
  • WATER TANK INSTALLATION: It may seem obvious now, but if you’re not having a combi-boiler installed, you’re going to need a water tank installed somewhere suitable. The container will also need to be plumbed into the system. Though this isn’t a tremendous job, it will add a considerable amount to your boiler installation cost
  • POWER FLUSHING THE SYSTEM: All systems should be flushed before having a new boiler installed. However, you may need a power flush which is a different, more complicated process. It involves cleaning the system at high-pressure with water and chemicals, to clear any build-up and grime in the pipes and remove any cold-spots in the system.


An older, less efficient boiler can add upwards of £300 more per year to your energy bills than a newer model. While this sounds like it is hitting your wallet the hardest, it’s actually having a major impact on your environmental footprint, too.

The reason you’re spending so much extra on bills is because your boiler is ineffective in what it does. The old and worn parts mean it’s struggling to generate the requisite heat quickly. In doing so, the appliance wastes more energy, which burns more fuel, which increases CO² output. In truth and in general, boilers last about 10 years. After that, their efficiency starts to drop and output versus fuel consumption diminishes. It’s wise then, financially as much as anything else, to get rid of your old appliance and install a boiler that is eco and purse friendly.


The final word and the most important, too; outdated boilers aren’t safe. In short, new ones offer better performance and are far more reliable while older models require frequent servicing and are prone to more breakdowns. Moreover, most of the older versions have been removed from the production line. So, if you want any spare parts to be replaced in your old model, then it would be quite challenging to find them which will subsequently increase repair costs. A no brainer, then.