Greentec Ecological Homes Ltd

Greentec Ecological Homes Limited is a specialist builder dedicated to creating passive-house and low-energy homes across Ireland. Since its founding in 2002, the company has combined a deep understanding of a variety of construction methods with a strong commitment to sustainability, delivering fully certified, high-performance dwellings and SEAI Deep Energy Retrofits in partnership with one-stop-shop providers.

The firm's core services include the design-led construction of new passive-house homes, comprehensive deep-retrofit programmes for existing properties, and end-to-end project management for self-builds and larger housing developments. Greentec's team works closely with architects and design consultants to ensure every internal and external finish meets the highest standards, offering flexible packages that support projects from concept through to completion. Their expertise is underpinned by full accreditation from CIRI and certification as Passive House Tradesmen.

Greentec's portfolio showcases a range of award-winning projects-from the Menlough Retrofit and Salthill Deep Retrofit to the Ballymana Passive House and the RIAI House of the Year (Munster 2017). These examples demonstrate the company's ability to blend cutting-edge energy performance with quality craftsmanship, providing homeowners and developers with environmentally responsible, future-proof homes.