How Long Does It Take to Install a New Boiler? | Freeman Plumbing Services
- David Freeman
- Jun 11
- 3 min read

Thinking About Replacing Your Boiler in Kildare or Dublin?
If you're planning a boiler replacement or installing a new energy-efficient boiler, you’re probably wondering:“How long does it take to install a new boiler?”
At Freeman Plumbing Services, we make the process fast, efficient, and hassle-free. In most cases, we can complete a boiler installation in just one day, depending on the system type and your home’s requirements.
Average Time to Install a Boiler
For most standard combi boiler installations, the job takes around 6–8 hours. However, more complex setups may take up to 2 days. Here’s a typical breakdown of our installation timeline:
Day 1: Removal and Preparation
Disconnect and safely remove your old boiler
Dispose of the old unit responsibly
Inspect and prepare the space for your new boiler
Ensure all pipework and connections are ready
Day 1–2: New Boiler Installation
Position and install the new boiler
Connect to gas, water, and heating systems
Run necessary wiring and controls
Perform system checks and full functionality testing
Complete safety inspections
Final Steps:
Provide a Gas Safety Certificate
Demonstrate how to use your new boiler
Schedule a follow-up visit for added peace of mind
🔧 Our team always ensures your system is installed to RGII standards, giving you a safe, efficient heating system that’s built to last.
What Can Affect Boiler Installation Time?
Several factors can influence how long it takes to install a new boiler in your home:
1. Type of Boiler
Combi boilers are typically faster to install as they don’t require tanks or cylinders
System and regular boilers may require more time for tanks, pipework, and ventilation
2. Condition of Existing Pipework
Old or corroded pipes may need replacing
Additional plumbing work can add to the overall time
3. Power Flushing
If your heating system requires a power flush (to clean out debris or sludge), it will add about one extra day
4. Location and Accessibility
Difficult-to-reach installations (e.g., lofts or tight cupboards) may increase the time needed
Relocating the boiler can also extend installation duration
How to Prepare for a Smooth Boiler Installation
You can help ensure a quick, smooth installation by preparing your home ahead of time:
✅ Choose the Right Boiler Location
Combi boilers can be installed in kitchens, airing cupboards, or even lofts, while other boilers may need special ventilation or space for water tanks.
✅ Insulate Your Pipes
Pipe insulation improves heating efficiency and prevents winter pipe bursts. It’s a smart upgrade before installation.
✅ Clear the Area
Make sure the space around your boiler is clean and accessible so our engineers can get straight to work.
✅ Plan for Ventilation
Ensure there’s proper airflow, especially for sealed system and regular boilers, which require specific ventilation standards.
Need help choosing the right boiler? Check out our boiler installation guide or contact us for a personalised quote.
Boiler Installation in Kildare & Dublin – Done Right
We provide expert boiler installation across:
County Kildare:
Naas, Sallins, Kill, Johnstown, Caragh, Ballymore Eustace, Kildare, Newbridge, Maynooth, Athy & more
Dublin City & Suburbs:
Dublin 1–24, Lucan, Rathmines, Tallaght, Clondalkin, etc.
✅ Fully RGII-registered installers
✅ All major boiler brands (Worcester Bosch, Ideal, Vaillant, etc.)
✅ Fast, clean, and reliable installation
✅ Transparent pricing – no hidden costs
Final Thoughts: How Long Will Your Boiler Installation Take?
While most boiler installations in Kildare and Dublin are completed in just one day, every home is unique. Factors like boiler type, system age, and plumbing condition can influence the timeline.
Want to ensure a stress-free experience? Book your boiler consultation with Freeman Plumbing Services — your trusted local heating experts.
📞 Call today or book online at freemanplumbingservices.com
📧 Free Quotes | Same-Day Service | Trusted Locally Across Dublin & Kildare
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