As the leading Passivhaus consultants in Ireland, we’ve spent decades refining our expertise. We consult on diverse projects worldwide and advise governments on Zero Energy Building (ZEB) policy, delivering innovative solutions that simplify construction, reduce costs and create healthier buildings.

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Tools of the Trade

As sustainable building consultants, we provide expert guidance and cutting-edge tools to optimise building performance. Our advanced analysis and proprietary modeling tools help make energy engineering, thermal bridge assessment and performance prediction faster and more precise.

2004

First Certified Passivhaus.
In the English-speaking world

Up to 20%

Heat Loss from Thermal Bridges. Minimising potential loss through expert analysis

0.01 W/mK

Thermal Bridge-Free Design.
Achieving these ultra-low values to ensure high thermal comfort

70% faster

At achieving airtightness.
Reducing heat loss through superior airtightness levels

How We Can Help

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Consulting

Passivhaus Certification

We are global leaders in Passivhaus Certification (also known as Passive House Certification) having worked on a wide range of buildings in different regions and climates. With six certified Passivhaus Certifiers on our team, we offer the highest level of certification expertise available anywhere in the world. Certification is based on testing across the full Passive House construction process from design and planning to completion.

Consulting

Passivhaus Design

Since designing the first certified Passivhaus in the English-speaking world in 2004, we have led the way in high-performance building design. As experts in Passive House design, we’ll support you from the early design stage, using a “fabric first” approach and our proven expertise in building physics to help you create sustainable, cost-effective buildings that meet the highest standards.

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Consulting

Thermal Bridge Analysis

Our thermal bridge modelling maximises energy efficiency by identifying and eliminating weak spots in the building’s insulation. These thermal bridges can account for up to 20% of total energy loss, making their removal essential for better performance. With advanced analysis using proprietary tools, we provide precise design guidance, making construction easier, more efficient and error free.

Consulting

Hygrothermal Risk
Assessment

This allows us to evaluate how heat and moisture move through a building’s structure. It helps identify risks like condensation, mould and dampness, which can damage the building and affect indoor air quality. This assessment is especially important for energy-efficient buildings, retrofits and new construction methods so that they meet Passivhaus or Passive House standards and ensure durability and comfort.

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FAQs

Some of the most common things people ask us.

Passivhaus consultancy involves expert guidance on designing and delivering buildings that meet the world’s leading standard for energy efficiency, comfort and performance with minimal environmental impact.

As experienced Passivhaus consultants, we work closely with clients, architects, and contractors to ensure every aspect of a project aligns with Passivhaus and Passive House principles. Whether in Ireland or the UK, our consultancy supports everything from early-stage design to certification. We also act as sustainable building consultants, offering insight into low-energy strategies and materials. Our services often overlap with low energy building consulting and environmental building consulting, helping clients achieve outstanding results.

The timeline for achieving Passivhaus certification (also known as Passive House Certification) can vary depending on the complexity and scale of the project, but typically it takes several months from design through to final assessment. Working with experienced Passivhaus architects and Passivhaus consultants in Ireland or the UK can help streamline the process by ensuring that the building meets all required Passivhaus/Passive House standards from the outset.