How Much Does a New Boiler Really Cost in Grimsby?
- Mayne Gas Heating Ltd
- Jul 9
- 2 min read
Updated: Jul 15

If you are considering a new boiler, knowing the true cost is essential. For homeowners in Grimsby and Lincolnshire, the average cost of a new boiler is typically between £2,500 and £3,000, including installation. But this figure can vary based on several key factors.
1. Boiler Type
There are three main types of boilers:
Combi boilers are compact and efficient, ideal for smaller homes
System boilers are suited for homes with higher hot water demand
Conventional boilers work with a separate hot water cylinder and cold-water tank
Combi boilers are the most common across the UK due to their convenience and space-saving design.
2. Size of Your Property
Larger homes require more powerful boilers. That increases the cost of both the unit and the installation. A smaller home can often be heated by a more affordable, compact system.
3. Installation Complexity
A straight replacement is typically quicker and cheaper than a full conversion. For example, upgrading from a traditional system to a combi boiler may involve extra pipework or electrical work, increasing the overall cost.
Boiler replacement: from £2,500
Boiler conversion: from £2,500 to £3,500
An on-site survey is the best way to determine the scope and final cost of your installation.
Other Factors That Affect the Cost
Fuel Type
Gas boilers remain the most popular and widely available
Oil boilers are common in rural areas without mains gas
Electric boilers are generally smaller but may come with higher running costs
Gas boilers typically offer the best balance between cost and efficiency for Grimsby homeowners.
Energy Efficiency
Investing in a higher-efficiency boiler may cost more upfront but can lead to lower fuel bills over time. Efficiency ratings should always be compared before buying.
Age of Your Current Boiler
Older boilers are often less efficient. Replacing a 10-year-old system could save hundreds of pounds per year on gas bills.
Location and Property Access
The location of your boiler and accessibility of the installation area can also affect the labour cost. Homes in colder climates may require higher-spec systems to perform effectively.
Local and Reliable Boiler Installation in Grimsby
At Mayne Gas Heating Ltd, we are Vaillant Approved Installers and Gas Safe Registered (208527). We install all boiler types and provide free, no-obligation quotations.
📍 Address: 2 King Edward Street, Grimsby, DN31 3JD
📞 Phone: 01472 241211
Get in touch with our friendly team to discuss the best boiler option for your home and budget.

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