What to Expect During Your New Boiler Installation

by | Jan 12, 2024 | Uncategorized

At CJT Services, specialising in gas boiler installation in Belfast, we understand that domestic boilers are long-term investments, often lasting over a decade. However, there may come a time when your existing boiler needs replacement, whether due to malfunctioning or simply the desire for an upgraded model. Installing a new domestic boiler is a process that demands careful planning and preparation.

Our skilled team of heating engineers is committed to ensuring a smooth and efficient installation experience for you. Despite our experts guiding you through every step, it’s beneficial to have an understanding of what the installation process involves and how you can prepare for it. This knowledge ensures a seamless transition to your new domestic boiler. Trust CJT Services for reliable and professional gas boiler installation in Belfast.

Preparing for Installation

Prior to the actual installation of your new boiler, a certified Gas Safe engineer from our team at CJT Services will visit your premises for a comprehensive evaluation. This initial inspection is crucial to tailor the boiler setup ideally suited to your specific needs. Our engineer will conduct an in-depth heating survey of your space, considering various factors like the number of rooms, bathrooms, existing radiators, and the typical occupancy.

Furthermore, the engineer will explore potential sites for the new boiler, assessing the feasibility of connecting it to a power source and determining whether additional pipework is necessary. During this visit, you’ll also have the opportunity to discuss your preferences. Our engineer will discuss the heating survey’s findings with you and present various options, ensuring you have all the information you need to make an informed decision.

By the end of this consultation, you will have a clear understanding of the most suitable domestic boiler for your residence, encompassing everything from the specific model and its location within your building to the installation costs. Finally, you’ll be able to schedule a convenient date and time for the installation, after which our engineers will return to carry out the work.

The Installation Process

As a leading provider of gas boiler installation in Belfast, CJT Services ensures a streamlined and professional process. We require your presence at the start of the installation to grant access to our engineer and to provide you with a brief overview of the installation plan. However, it’s not necessary for you to remain on the premises for the entire duration; you’re welcome to return once the installation is complete and your new boiler is operational.

The time required for installation varies depending on the complexity of your setup. For straightforward tasks like replacing an old combi boiler with a new model of the same type, the process may take just a few hours to less than a day. More complex installations, involving significant pipework alterations or drilling, could extend from two to five days. Your engineer will provide a clear timeline for the completion of the work.

To ensure a clean installation environment, our engineer will use carpet protectors and dust sheets to cover nearby surfaces. If an old boiler is being replaced, it will be disconnected from the gas and water supply and then removed. Prior to installing the new boiler, our engineer will thoroughly clean your central heating system to remove debris, employing either a chemical flush or a more comprehensive power flush if needed. Adjustments or reconfigurations to the pipework may also be made to optimise the efficiency of your new boiler.

The installation will take place at the agreed location, usually the boiler room. We will connect the new boiler to water outlets, the mains supply, and radiators. For regular boilers, we’ll also install storage tanks. To boost the boiler’s performance, we may include additional components like a system filter or filling loops.


After your gas boiler installation in Belfast, our engineer at CJT Services will perform a series of essential system checks to ensure everything is functioning correctly. These checks include searching for any potential leaks and verifying that the gas pressure is within the appropriate range. After thoroughly testing the boiler and ensuring its optimal performance, our engineer will proceed to clean and tidy up the installation area.

Now, it’s time for you to get involved. Our engineer will invite you to test the boiler yourself, ensuring it meets your requirements and operates as expected. This hands-on experience is a valuable opportunity for you to familiarise yourself with the new system. Following this, our engineer will provide a comprehensive briefing on how to operate the boiler, including important safety guidelines.

You’ll also receive the boiler’s manual for future reference. While our team is always available for post-installation support, this moment is an ideal time to address any questions or concerns you might have. Our engineer will be on hand to answer your queries and demonstrate the functionalities of your new boiler, ensuring you feel confident and informed about its operation.

Registration and Maintenance

Following the completion of your gas boiler installation in Belfast, our engineer at CJT Services will promptly take care of the necessary legal and regulatory procedures. This includes registering your new boiler with Gas Safe, which is a mandatory step to ensure compliance with Building Regulations.

While you can now enjoy the comfort and efficiency of your new boiler in your space, it is important to remember that regular maintenance is key to its longevity and optimal performance.

We recommend scheduling at least annual servicing to ensure your boiler remains in prime condition. With diligent installation and consistent upkeep, your boiler will be a reliable and efficient part of your business for many years to come.