How Much Does a New Boiler Cost??

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How Much Does a New Boiler Costs: Factors That Influence Pricing

When it comes to investing in a new boiler, understanding the various factors that can affect its cost is essential. Whether you’re considering a boiler swap, system conversion, or a full system installation, several key considerations will impact the overall price. In this article, we will explore the factors that influence boiler costs, including the type of installation, the make of the boiler and warranty, required controls, additional components like filters, shock arrestors, and limefighters, pipework upgrades, flushing options and the choice between a larger company or a sole trader for installation.

Type of Installation:
The type of installation you require plays a significant role in determining the cost of your boiler project. A boiler swap, where a new boiler is installed in place of an existing one, generally incurs lower costs (£1700-£3000) compared to a system conversion (£3000-£4500) or a full system installation (£5000-£6500). System conversions involve changing the system from heat only boilers to combi boilers, while full system installations involve fitting a new boilers and components, such as radiators and pipework.

Make of Boiler and Warranty:
The choice of boiler brand and the warranty it offers will affect the cost. Well-known brands with excellent reputations often come at a higher price point due to their reliability and performance. However, they may also provide longer warranty periods, which can offer peace of mind and potentially save on future repair costs. Consider the balance between upfront cost and long-term benefits when selecting a make and warranty that aligns with your budget and needs. The price difference between a well known boiler with 10-14 year warranty and a mid range boiler with a 5 year warranty can be as big as £800

Required Controls:
Boilers can be enhanced with a range of control options, including basic thermostats, programmable timers, smart thermostats, and zoned heating controls. The level of control you desire can impact the overall cost of your boiler project. More advanced control systems tend to be pricier but offer greater energy efficiency and comfort customization. the price difference between a basic wireless programmable thermostat and a smart stat you can control from a mobile phone could be up to £200

Additional Components:
In addition to the boiler itself, certain components can improve system performance and protect against common issues. Filters(£90-150), shock arrestors (£40), and lime fighters (£30) are examples of such components. These additional features help prevent damage caused by debris, reduce water pressure fluctuations, and combat limescale build-up. While they add to the initial cost, they can save you money in the long run by extending the lifespan of your boiler and reducing maintenance needs.

Pipework Upgrades
During a boiler installation, it may be necessary to upgrade the pipework, particularly for condensate drainage and gas supply. Condensing boilers require a condensate pipe to remove waste water, and ensuring proper drainage is essential for optimal functionality. Additionally, gas supply pipes must meet safety standards and may need upgrading to accommodate the new boiler. These pipework upgrades can contribute to the overall cost of the installation. Depending on length and difficulty of the route the price for these can vary.

System Flushing
One of the biggest factors towards a quality installation is how well the system is flushed. Over time sludge builds up inside of heating systems that can have a detrimental effect on your boiler. Flushing this out correctly on install will severely prolong the lifespan of the boiler and prevent breakdowns. Power flushing is the most effective method of cleaning systems but this does come at extra cost.

Company Choice – Larger Company vs. Sole Trader:
The choice between a larger company and a sole trader can also impact the cost of your boiler installation. Larger companies often have higher overhead costs, which may be reflected in their prices. On the other hand, sole traders may offer more competitive rates but could have limited availability and resources. Consider your preferences for service, reputation, and customer support when choosing between the two.

When assessing the cost of a boiler installation, it’s crucial to consider various factors that influence the overall price. From the type of installation to the make of the boiler, warranty, required controls, additional components, pipework upgrades, and the choice of company, each factor plays a role in determining the final cost. By understanding these considerations and working with reputable professionals, you can make an informed decision that aligns with your budget and ensures a reliable and efficient heating system for years to come.


Here are some handy links to provide you with more information:

Boiler Controls And Thermostats – Which?

Water Treatment – Greenhome Heating

Magnetic Filters – Greenhome Heating

Heating Controls – Greenhome Heating

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