Balconies Built the MMC Way: Extreme Balconies' Reinvents the Irish Balcony
Extreme Balconies has perfected the process of fabricating modular units off-site and installing them on a range of high-profile residential developments.


One of the great complexities of any construction project is installing balconies. In traditional builds, balconies are manufactured to match different parts of the structure. That could mean any number of different product dimensions, cladding types, drainage solutions, and more.
Damien Donegan, Managing Director at Extreme Balconies, says there can be from 30-100+ different designs on any project. Differing needs make inefficiency inevitable.
Extreme Balconies eliminates this complexity with its fast and repeatable off-site production system that increases output while also reducing error.
The company’s modular balcony units are fabricated off-site in a controlled factory setting using robotic welding systems, CNC machinery, and automated precision tooling. This increases production output, reduces human error, and offers developers repeatable, cost-efficient solutions at scale.
Balconies are delivered onsite and craned into position and the team bolts each unit to pre-installed structural slab stub connectors. This reduces site labour and ensures efficient installation – critical for developers under pressure to meet project targets.

Dominic Francois, Business Support Manager at Extreme Balconies, says this process is part of a natural (and necessary) evolution in the construction sector to MMC.
As the built environment shifts toward an off-site delivery model, balcony systems must evolve too. Our mission is to remove complexity, reduce onsite risk, and radically improve delivery certainty.
Business Support Manager at Extreme Balconies
Another core element of this off-site way of building is integrating digital models with the developer to streamline prefabrication workflows. This ensures compliance with building regulations and certification. And it means no costly late-stage redesigns!

Working with Ireland’s most ambitious developers, including Glenveagh, Cairn and Walls, Extreme Balconies have:
- Reduced installation times on key projects by up to 70%.
- Eliminated the need for costly scaffolding installation, in many cases.
- Enhanced onsite safety and mitigated the risks of defects.
The height of this efficiency? Working on the Seven Mills project in Clonburris, the Extreme Balconies team managed to install 52 modular units in one day.
The future of balcony development is modular. Without the efficiencies brought about by off-site fabrication and other Modern Methods of Construction, it is simply impossible meet the high demand for high-quality housing Ireland needs.