Mannion Passive House Builders, founded by Galway native, Cyril Mannion, provides building contractor services from Dublin to Galway and throughout the West of Ireland.


We have earned the reputation for being the forefront of constructing A Rated, Low Energy and Passive buildings, achieving high-performance energy efficiency at cost effective prices.

Mannion Passive House Builder

Why Choose Us?


We are passionate about bringing Architectural drawings to life, managing every project to deliver the highest quality of work on schedule and within budget.

  • Experienced team with 35 years plus in the industry
  • Range of tailored services and building systems
  • Reputation for being at the forefront of low energy building
  • Project management to delivery highest quality finish
  • Quality Constructor

Contact us today to discuss your project

Our Services


We offer full Building Contractor services with a range of building system and building finish options for construction to a number of low energy building standards to guarantee satisfaction for our clients.


We offer Building Contractor services with the expertise to retrofit appropriate key components of an energy efficient build, also to suit any project striving to achieve certification to EnerPhit standard.


We also provide contracting services for commercial projects, please see our sister company Mannion Build Expertise for further information.

Bringing Architectural drawings
to life since 2007

Working with Architects and their clients to deliver superior levels of comfort and low running costs
through our expertise and passion for building to the highest standards.