Challenging the Built Environment to a cleaner future


Truly Sustainable is here to help organisations achieve their sustainability and energy goals. We deliver independent and unbiased advice. We challenge and encourage engineers to keep sustainability and energy efficiency at the forefront of their designs.

Who we are

We are passionate about sustainability and energy efficient design. We are here to add sustainable value to all projects by supporting change and innovation.  It is vital to our business that we form lasting, sustainable relationships that will allow us to concentrate on making a difference. We pride ourselves on customer service and exceptional results.

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Gorgeous evening on a solar array installation in Delran, New Jersey. Original public domain image from Flickr

Energy Auditing and Benchmarking

We can complete and energy Audit on your business and provide advice on measures to save Energy and Carbon emissions. Give us a call to see where we can add value to your business. Below are some of the services we offer;

  • Energy Audits to SI 426
  • ASHRAE Level 1, 2 and 3 Audits 
  • Small Business Energy Audits
  • Non-Domestic BER Certificates
  • Support Scheme for Energy Audits (SSEA)
An engineering workspace with a laptop

EXEED Expert

We can undertake the role of EXEED Expert on your projects. EXEED is a systematic approach to the design, construction and commissioning of new investments and upgrades. Further information on eligibility and funding (up to €1,000,000 per year per project). is available on the SEAI website. 

If grant funding is not available, following IS 399:2001 ‘Energy Efficient Design’ is still good practice which can lead to significant savings in Energy use. We are here to guide you through the process.


Electric car (EVs) battery being charged

Feasibility Studies

Have a new technology or concept you want to review? Let your engineers concentrate on designing and we will investigate it for you. We have experience with the following studies;

  • Electric Vehicle charging infrastructure
  • Car Share schemes for residential developments
  • Mechanical heat recovery ventilation
  • Photovoltaics (PV)
  • All Electric sites and decarbonisation
Multi-ethnic people holding energy graph.


We are here to give advice and help you when purchasing or building a house or apartment. We are strong advocates for a ‘fabric first’ approach to building and will help you cut through the multitude of options available to you. Some of the services we offer include;

  • BER Certificates
  • Part L compliance
  • Upgrades and Grant advice
  • Heat Pump suitability reviews
  • Mechanical ventilation
  • Energy and Carbon reduction
  • SEAI Grants
Why Choose Us

What Sets Us Apart


With Truly Sustainable, you will always be dealing with a senior consultant, no matter how big or small your project is. We pride ourselves on customer service.

Design Background

We have 15 years' experience in the building services engineering industry. This background in engineering design provides invaluable insights into mechanical and electrical systems which play a crucial part in energy use in the Built Environment.

Pragmatic Approach

We have experience on both sides of the table and understand that each stakeholder can have different priorities. We are here to bring everyone together to achieve what is most important for each individual project.


T: +353 85 253 0046