Upgrade Your Gas Boiler. Reliable Heat, Lower Bills
Modern, energy-efficient boiler replacements installed by qualified engineers.
Old Boilers Cost More Than You Think
Your boiler might still be working, but that doesn’t mean it’s working well.
Rising energy bills from poor efficiency
Frequent breakdowns and repair costs
Slow heating and inconsistent hot water
Outdated systems that don’t meet modern standards
Most older boilers operate far below the efficiency of modern condensing models, costing you more every day.
Expert Boiler Replacements You Can Trust
At Helios Gas, we specialise in professional gas-to-gas boiler replacements across Northern Ireland.
Fully qualified and Gas Safe registered engineers
Experienced with all major boiler brands and system types
Installations carried out to current UK regulations
Focus on efficiency, reliability, and long-term performance
We don’t just swap boilers, we ensure your whole system is set up properly for maximum efficiency and comfort.
How We Upgrade Your Heating
1
Assess Your System
We review your current boiler, heating demand, and system condition.
2
Recommend the Right Boiler
We size and specify the correct high-efficiency condensing boiler for your home.
3
Install and Optimise
We install the new system, test performance, and ensure everything is running safely and efficiently.
Better Heating, Lower Running Costs
A Boiler Upgrade Delivers:
Improved energy efficiency (modern boilers up to 90%+ efficient)
Lower monthly energy bills
Reliable heating and hot water
Quieter, more consistent performance
Reduced risk of breakdowns
Your home stays warm, without the constant worry or rising costs from old systems.
What's Included
Complete Boiler Replacement & Upgrade Package
New energy-efficient boiler
New time clock / smart controls
Full system
flush
Magnetic filter for system protection
Chemical inhibitor treatment
Carbon monoxide alarm
Caleffi deaerator for system protection
Smart & weather-compensated controls
10 year
warranty
Delaying Replacement Increases Costs
Waiting too long can lead to:
Older boilers become more expensive to run
Breakdowns become more frequent and costly
Parts become harder to source
Efficiency losses continue to drive up energy bills
Upgrading now gives you immediate savings and long-term reliability.
Book Your Boiler Replacement Today
Upgrade to a modern, efficient heating system.
The Helios Difference
Installed Properly. Designed to Last.
Gas Safe registered engineers
Installed to UK building regulations and safety standards
Designed for efficiency, reliability, and long-term performance
Trusted by homeowners across Northern Ireland
