Fitting a new boiler can typically cost anywhere from £1,500 to £5,000, including the boiler unit itself and professional installation. The final price largely depends on the type of boiler you choose and the complexity of the installation process.
New Boiler Installation Costs
The cost to fit a new boiler varies based on the boiler type. Here's a breakdown of average costs including installation:
| Type of Boiler | Cost Including Installation |
|---|---|
| Combi Boiler | £1,500 – £4,500 |
| System Boiler | £1,580 – £5,000 |
| Conventional Boiler | £1,600 – £5,000 |
| Electric Boiler | £1,590 – £4,000 |
(Figures are approximate and can vary based on market conditions and specific requirements.)
Factors Influencing the Cost of Boiler Installation
Several key factors contribute to the overall price of fitting a new boiler:
1. Boiler Type and Brand
Different types of boilers (combi, system, conventional, electric) have varying price points for the unit itself. Premium brands or models with advanced features like smart home integration or higher efficiency ratings will naturally be more expensive.
2. Boiler Size (kW Output)
The power output of the boiler, measured in kilowatts (kW), must match the heating demands of your home. Larger homes with more radiators and hot water outlets require boilers with a higher kW output, which typically cost more.
3. Complexity of Installation
This is one of the most significant cost drivers:
- Like-for-like replacement: Replacing an old boiler with a new one of the same type in the same location is usually the most straightforward and least expensive option.
- Boiler relocation: Moving the boiler to a different part of your home (e.g., from the kitchen to the utility room) involves significant extra work, including re-routing pipework, gas lines, and the flue, which increases labor and material costs.
- System conversion: Changing from one boiler type to another, such as converting a conventional system (with hot water tank and cold water tank in the loft) to a combi boiler, requires extensive modifications. This includes removing old tanks, altering pipework, and potentially upgrading the gas supply.
- Flue system: The flue is essential for expelling waste gases. If the existing flue needs to be replaced, upgraded, or rerouted, this will add to the cost.
4. Labor Costs
The cost of hiring a Gas Safe registered engineer (or an OFTEC registered engineer for oil boilers) varies depending on their experience, location, and the duration of the job. More complex installations require more labor hours.
5. Additional Work and Upgrades
Often, a boiler replacement presents an opportunity for other beneficial upgrades:
- Powerflushing: Cleaning your existing heating system to remove sludge and debris can improve efficiency and extend the life of your new boiler.
- Thermostat upgrades: Installing a new programmable or smart thermostat can enhance control over your heating and potentially save energy.
- New radiators or pipework: If your existing radiators or pipework are old or inefficient, upgrading them alongside the boiler installation can be a wise investment.
- Disposal of old boiler: Most installers will include the removal and ethical disposal of your old boiler, but it's worth confirming.
Practical Tips for Getting a New Boiler Fitted
- Get multiple quotes: Always obtain at least three quotes from different Gas Safe registered engineers to compare prices and services.
- Check engineer credentials: Ensure your installer is Gas Safe registered (for gas boilers) or OFTEC registered (for oil boilers) to guarantee safety and compliance.
- Consider energy efficiency: Look for boilers with high energy efficiency ratings (e.g., A-rated) to reduce your long-term energy bills.
- Understand the warranty: Familiarize yourself with the boiler's warranty period and what it covers. Some brands offer extended warranties.
By considering these factors and planning carefully, you can manage the costs effectively when fitting a new boiler. For more detailed information, you can explore resources like Boiler Guide.
