If your old gas boiler is no longer working efficiently, or if it’s broken beyond repair, replacing it is often the best option. While it may seem like a big job, understanding what to expect can help you feel more comfortable and prepared. In this article, we will guide you through the entire process of a gas boiler replacement, from the first step to the final installation. We’ll also explain the timeline so you know how long it will take. At Dublin Plumber 24Hrs, we are a trusted RGI registered installer offering professional gas boiler replacement and installation services in Dublin.
1. Gas Boiler Replacement : Initial Contact and Gas Boiler Assessment
The first step in the gas boiler replacement process is to contact a professional plumber or gas engineer. When you reach out to Dublin Plumber 24Hrs, our friendly team will arrange for a qualified engineer to visit your home. You’ll explain the issues with your current boiler, and our expert engineer will set up an appointment to assess the situation.
During this initial visit, the engineer will inspect your current system. They will ask questions to understand your heating needs and examine the location of the boiler, pipes, and vents. This is also when they will check whether your old system can be replaced with a new one.
At this stage, they might offer suggestions on what type of new boiler would suit your home. For example, you may need a combi boiler, a system boiler, or a conventional boiler. The engineer will provide options based on the size of your home, the number of people living there, and your heating and hot water needs.
2. Choosing the Right Gas Boiler for Your Home
Once the assessment is done, it’s time to choose a new gas boiler. You’ll be given a few options to consider. The engineer may recommend a boiler based on factors like your budget, the size of your home, and the energy efficiency you need. It’s important to choose a boiler that matches your home’s needs to ensure it works efficiently and doesn’t waste energy.
The engineer will explain the features of each boiler, including:
| Feature | Combi Boiler | System Boiler | Conventional Boiler |
| Energy Efficiency | High energy efficiency | Good energy efficiency | Moderate energy efficiency |
| Size & Capacity | Ideal for small homes | Suitable for larger homes | Best for large homes with multiple bathrooms |
| Hot Water Supply | Instant hot water | Stored hot water | Stored hot water |
| Installation Space | Compact, saves space | Requires storage tank | Requires separate hot water tank and cold water tank |
| Best For | Flats or small homes | Homes with high demand for hot water | Larger homes, multiple bathrooms |
After choosing the right boiler, you will be given a cost estimate. This estimate will include the price of the boiler, installation costs, and any additional parts needed. At Dublin Plumber 24Hrs, we ensure transparent pricing, so you will know exactly what to expect.
3. Preparing for Your Gas Boiler Installation Day
Once you’ve agreed to the quote, the next step is preparing for the gas boiler installation day. The installation usually takes place within a few days to a week after the initial assessment, depending on the availability of the boiler you’ve chosen.
Before the installation team arrives, make sure that the area where the boiler will be installed is clear. This helps the engineers work faster and safely. You may need to move furniture or any other obstacles in the area. The engineer will also confirm the exact time and date for the installation.
You may also want to make sure that your home is ready for a day of work. The engineers will need access to your gas supply, water pipes, and electrical systems, so they can safely install the new boiler.
4. The Gas Boiler Installation Process
On installation day, the engineers from Dublin Plumber 24Hrs, a professional and RGI registered installer, will arrive at your home at the agreed time. First, they will shut off the gas supply and make sure the water and electricity are turned off in your home. Safety is always the top priority when working with gas and electricity.
The gas boiler installation or Gas boiler replacement process itself typically takes anywhere from 4 to 8 hours, depending on the complexity of the job. Here is a simple overview of what happens during the installation:
| Step | Description |
| Removal of Old Boiler | The engineers will carefully remove your old boiler. |
| Fitting the New Boiler | The new boiler will be installed and connected to gas, water, and flue systems. |
| Setting Up Controls | The engineers will set up your thermostat, timer, and any smart controls. |
| System Testing | Engineers will check for leaks and ensure the system is heating water properly. |
| Cleaning Up | After testing, the engineers will clean up the area and dispose of your old boiler. |
5. Final Check and Handover After Gas Boiler Replacement
After the gas boiler replacement is complete, the engineer will explain how to use your new boiler. This is a good time to ask any questions you may have about operating the system, setting the thermostat, or adjusting the temperature.
The engineer will also make sure that you have all the necessary documents, including:
- The Boiler Manual: This will include instructions on how to operate and maintain your new boiler.
- Warranty Information: Your new boiler will likely come with a warranty. Make sure you have details of this warranty, as it will cover any issues with the boiler within a certain period.
- Certificate of Installation: In some cases, you may need a certificate to prove the boiler was installed by a qualified engineer, especially if you’re a landlord or if you plan to sell your home in the future.
6. Testing and Final Checks of Your New Gas Boiler
Before leaving your home, the engineers will do one final check of the system. They will run the heating and hot water to ensure everything works perfectly. If they find any issues, they will fix them right away.
They will also check for any potential safety issues, such as leaks or faulty connections. Once everything is confirmed to be safe and working well, they will sign off on the installation.
7. After Installation: Ongoing Gas Boiler Maintenance
Once your new gas boiler is installed, it’s important to keep it maintained. A good maintenance schedule will help your boiler run efficiently for many years. It is recommended that you book an annual service with a qualified gas engineer. Regular servicing will ensure that your boiler remains in good condition, and it can also help prevent small problems from becoming bigger, more expensive issues.
Dublin Plumber 24Hrs offers ongoing gas boiler maintenance services to keep your boiler working at its best. As an RGI registered installer, we ensure that all maintenance and servicing is carried out safely and to the highest standards.
How Long Does a Gas Boiler Replacement Take?
On average, the entire process of replacing a gas boiler—from the initial assessment to installation—can take anywhere from 1 to 2 days. The majority of the work happens during installation day, which can take between 4 to 8 hours depending on your system and the complexity of the installation.
If the engineers need to install additional parts or if there are complications, the process may take longer. However, most jobs are completed in a day.
Conclusion: Choose Dublin Plumber 24Hrs for Your Gas Boiler Replacement
Gas Boiler Replacement may seem like a big job, but it is a straightforward process when you know what to expect. From the initial assessment to the final installation and testing, the professionals at Dublin Plumber 24Hrs, an RGI registered installer, will ensure that everything runs smoothly. With the right planning, you can enjoy a new, more efficient boiler that will keep your home warm and comfortable for years to come.
Always choose a qualified, experienced engineer for the job to make sure the installation is safe and completed to the highest standard. If you have any questions or concerns about your gas boiler replacement, don’t hesitate to contact Dublin Plumber 24Hrs for expert advice and service.