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Heating & Plumbing
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Heating and plumbing systems are essential to the safe operation, efficiency and comfort of residential and commercial buildings across Ireland. At TJ O’Mahony, our Heating & Plumbing category provides a comprehensive range of materials and components required for the installation, upgrade and maintenance of modern heating and water systems. These products are widely used by plumbers, heating installers and contractors working on new builds, refurbishments and system upgrades. Our range includes boilers (oil and gas) designed for domestic and light commercial heating systems, along with hot water cylinders and tanks used to store and distribute hot water efficiently throughout buildings. To deliver effective heat distribution, we supply a wide selection of radiators and accessories, including single and double radiators, designer radiators, towel warmers and radiator valves.
Efficient heating performance also depends on accurate system control. Our range of heating controls includes thermostats, time clocks and smart heating controls that help regulate temperature, improve energy efficiency and optimise heating system performance in modern buildings. To support water circulation and system pressure, we supply pumps used across plumbing and heating installations, including shower pumps, booster pumps and circulating pumps. For water distribution and pipework installation, TJ O’Mahony also provides a comprehensive range of plumbing fittings such as compression fittings, press fittings, crimp systems and specialist plumbing connectors used in professional installations.
Our plumbing materials range also includes pipes and tubes such as copper pipes, PEX tubing and multi-layer pipe systems commonly used in heating and plumbing networks. These materials are supported by white waste systems and fittings used in bathrooms, kitchens and sanitary installations for effective drainage and wastewater management. Additional systems including underfloor heating, ventilation components and renewable heating products help improve building performance and energy efficiency in modern construction. Installation tools and specialist plumbing equipment complete the range, supporting efficient on-site work for professional installers.
Supported by PH Ross, the Group’s specialist heating and plumbing division, ensuring that product selection reflects real installation requirements, system compatibility and regulatory compliance. All materials are sourced from trusted manufacturers and designed to meet Irish building standards, supporting reliable installations and long-term serviceability across residential and commercial projects.
Heating Systems in Modern Buildings
Modern heating systems are designed to provide consistent indoor comfort while improving energy efficiency across residential and commercial buildings. Core components such as boilers, radiators, heating controls and circulation pumps work together to distribute heat effectively throughout a property. Oil and gas boilers generate the heat, while radiators and pipework systems transfer that heat through the building to maintain stable internal temperatures. Radiators remain one of the most widely used heat distribution methods in Irish homes and commercial buildings. Modern radiator systems include single and double panel radiators, vertical radiators and towel warmers, allowing installers to design efficient heating layouts that balance performance with space requirements.
Plumbing Pipework and Water Distribution
Reliable plumbing systems depend on durable pipework and fittings that allow water to be transported safely throughout the building. Copper pipes, PEX tubing and multi-layer pipes are commonly used in modern plumbing installations due to their strength, flexibility and compatibility with professional installation methods. These pipe systems are connected using compression fittings, press fittings and crimp systems designed for secure and leak-resistant performance. White waste systems and plumbing fittings are also essential for drainage and wastewater removal in kitchens, bathrooms and sanitary installations. Together, these components ensure efficient water distribution and long-term reliability in domestic and commercial plumbing systems.
Underfloor Heating and Energy Efficiency
Underfloor heating systems are increasingly used in modern construction to provide even heat distribution and improved energy efficiency. Instead of relying on wall-mounted radiators, underfloor heating circulates warm water through pipes installed beneath the floor surface, allowing heat to rise evenly across the room. This system is particularly effective in energy-efficient homes and buildings where low-temperature heating systems are preferred. When combined with smart heating controls, circulation pumps and modern boiler systems, underfloor heating helps optimise energy consumption while maintaining comfortable indoor temperatures. These systems are commonly specified in new builds, extensions and renovation projects across Ireland.