Gas and Oil Heating Services for Homeowners and Landlords Across Northern Ireland

Let’s Talk Heating

Heating Done Right

Helios Gas provides reliable domestic gas and oil heating services for homeowners and landlords across Northern Ireland.

We specialise in boiler replacement, servicing and repairs, helping you keep your home warm, safe and energy efficient all year round.

Whether you need a new boiler, an annual service or a fast repair, our team of qualified engineers is here to help.

Boiler Replacements & Upgrades

Upgrade your boiler to a modern, energy-efficient system.

  • Gas and oil boiler replacement

  • Advice on the best system for your home

  • Improved efficiency and lower energy bills

  • Full installation and certification

Boiler Servicing

Keep your boiler running safely and efficiently.

  • Annual gas and oil boiler servicing

  • Safety checks and inspections

  • Improved performance and efficiency

  • Early fault detection

Boiler Repairs

Fast diagnosis and repair of heating issues.

No heating or hot

water

Fault codes and

breakdowns

Leaks, pressure issues

and noise

Quick and reliable

repairs

Landlord Gas Safety Certificates

Reliable and compliant gas safety checks for landlords.

CP12 gas safety certificates

Appliance inspections

Certification and reminders

Planned Boiler Maintenance

Keep your boiler running safely and efficiently.

  • Annual gas and oil boiler servicing

  • Safety checks and inspections

  • Improved performance and efficiency

  • Early fault detection

Oil to Gas Conversion

Keep your boiler running safely and efficiently.

  • Total control of your heating system with state-of-the-art remote controls

  • Instant hot water at the press of a button

  • Remove your oil tanker, boiler, hot press and roof tank, for more storage space and a bigger garden

Comprehensive Boiler & Gas Services

Trusted gas solutions across Belfast

  • Boiler Upgrade

  • Boiler Installation

  • Boiler Repairs

  • Emergency 24-Hour Service

  • Gas leak detection and repairs

  • Gas Line Repairs

  • Gas Tests & Certificates

  • CP12 Landlord Gas Safety Checks

  • Immersion Heaters

  • Radiator Bleeding

  • Radiator Installation

  • Oil-to-gas- boiler conversion

  • Thermostats

  • Power Flushes

  • Planned Boiler Maintenance

Book your System Check

Find out what your heating system should feel like.