Gas Boiler Replacement

Upgrade Your Home Heating System With A New Natural Gas Boiler

Our team of Gas Safe Registered Engineers can install your brand new gas boiler in just one day.




Why Replace Your Gas Boiler With Refresh NI?

Swipe to find out what makes us a trusted and recommended gas boiler installer across Belfast and beyond...

One Day Installation

Our team will install your new gas boiler in just one day. Additionally, we can organise the removal of your oil boiler so you don’t have to.

Online Survey

Survey online for a replacement gas boiler with our online survey form. With this quick and easy online option there is no need to arrange a face to face survey call out.

From £1,900

At Refresh NI we offer gas boiler replacement starting from just £1,900 including VAT for standard installations.

Customer Approved

We are proud to be highly recommended by our customers. We are rated 4.8 / 5 on Google and 4.7 / 5 on Trustpilot. Read more of our customer testimonials here.

Finance Available

At Refresh NI we offer flexible finance options on gas boiler replacement. Easily spread the cost over two to ten years for manageable monthly payments. See full finance details here.

Gas Safe Registered

Our team of Gas Engineers are Gas Safe Registered, ensuring that all work is carried out to the highest safety and quality standards. Learn more about Gas Safe here

Worcester Accredited

We are an accredited installer for Worchester Bosch boilers, offering high-quality installation services that come with a ten-year guarantee.

Gas Boiler Replacement Process

Home Survey


Submit your boiler replacement survey online, here or arrange a free face-to-face no-obligation survey to generate a quotation based on the work needed.

Boiler Replacement Installation


Our install team will install your replacement gas boiler in just one day. Plus we can arrange the removal of your old oil boiler so you don’t have to.



After install your Engineer will explain how to use the new system controls. You will have a new boiler, instant heat, and hot water all on the same day.

Gas Boiler Replacement FAQ’s

How do I know if my gas boiler needs replaced?

If you take good care of it, a typical boiler can last up to 15 years. However, it’s important to be aware of signs that your home heating system may not be functioning properly.

Warning signs to be aware of include:

1. Radiators are taking longer than usual to heat up.
2. There appears to be a leak in the boiler.
3. The boiler is emitting new, continuous, and unfamiliar sounds.
4. A foul odor is coming from the boiler.
5. Energy bills are steadily increasing.

It’s important to note that as your boiler ages, it becomes less efficient and uses more energy, resulting in higher energy bills.

Are gas boilers safe?

Yes. However, it is vitally important to have your boiler replaced and serviced by a Gas Safe Registered Engineer. All Refresh NI gas engineers are Gas Safe Registered.

If left unchecked gas boilers can result in carbon monoxide poisoning, fires, and even explosions. Therefore, it is important to service your boiler on an annual basis. 

Click here to discover the warning signs of Carbon Monoxide Poisoning and what to do if you suspect you may have CO2 Poisoning.

How long does it take to install a gas boiler?

Refresh NI can replace your old, inefficient heating system in just ONE DAY.

Our highly efficient boiler installation team works collaboratively and effectively to get the installation completed in a timely manner. Each member of the boiler replacement team has their own dedicated role, meaning each part of the installation will be completed to the highest standards.

Our team install new gas boilers throughout Northern Ireland and will arrive at your property and leave the same evening with the job done. Providing you with a new Grade A energy-efficient boiler and a continuous supply of heat and hot water.

How much does a new gas boiler cost?

At Refresh NI, we offer cost-effective and efficient boiler replacement services throughout Northern Ireland. We provide zero deposit finance options, helping you to spread the cost of your new boiler.

Visit our Finance Options page to learn more about our flexible 24 or 36-month finance plans.

Boiler Financing Options

Spread the cost of your new boiler with Refresh NI.

At Refresh NI we offer flexible finance on new natural gas boilers. Replace your boiler from just £1,900*, with zero deposit and spread the cost over 2 – 10 years. For more information and full T’s & C’s see Finance Options.

*Price is based on standard installation.