BERWOW provides the Irish homeowner with innovative online tools to explore, plan and implement energy upgrades of their homes.

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Your retrofit journey starts here
Introducing BERWOW-Home (aka BERWOW) – the most advanced domestic retrofit app in the world.
Based on three years R&D, and leveraging the niche expertise in Building Energy certification and cloud hosted technology and AI of its founders, BERWOW was launched in Ireland in August 2020. The product first went live on the SSE Airtricity and An Post websites, guiding homeowners through the home retrofit options available.

BERWOW is a cloud-based technology platform developed to provide retrofit dashboards and calculators to homeowners. It uses BER/ EPC certificate data to produce a list of energy upgrades options for houses and apartments. If the homeowner has a BER cert, and enters their certificate number or MPRN, BERWOW will retrieve their BER data file from the national BER database. It then checks all current conditions, (e.g. levels of roof insulation, wall insulation etc.) and then recommends best practice upgrade measures. The User can select and deselect measures or choose from the options provided to plan their own retrofit project. BERWOW provides typical industry average cost of works. If homeowners do not have a BER certificate, they can select from 50 building typologies where they should generally find a dwelling type similar to theirs.
The homeowner, now well informed, can book a home-survey to start on the road to retrofitting their home. BERWOW also calculates the grants available, energy partner incentives, a financial dashboard, a CO2 storyboard and mapped locational BER indicators.

Currently BERWOW is available under a licence arrangement to energy partners and retrofit companies active in the energy retrofit market in Ireland. BERWOW can be embedded and branded on the Energy Partner’s website and integrated with the Partner’s CRM system.
Other Products
Following on from our success with BERWOW-Home, the company is currently developing the next BERWOW tool and continuing our goal to reduce global climate change through making retrofit projects more accessible.
About Us
BERWOW Ltd. was formed in Dublin, Ireland in 2017 with a mission to disrupt the building energy rating process through the use of smart technology and AI. The company’s first product is BERWOW-Home, an online tool to guide homeowners through the options, costs and benefits from different retrofit home improvement decisions.

Michael Hanratty

Michael is CEO of BERWOW and also MD of IHER Energy Services limited. Worked for 20 years as an electrical engineer with ESB and was joint founder of IHER Energy Services in 2007.

He has been working as a BER assessor and part-time trainer since 2007 and has worked on related EU research programmes since 2005 including TABULA, EPISCOPE, NZEB Open Doors and ENERFUND. He has an extensive knowledge of the building energy performance of the Irish Housing stock and the BER calculation process. He is also currently Chairman of the Heat Pump Association of Ireland.

Feargal O'Neill

Feargal O’Neill is a tech entrepreneur with special interests in the application of location intelligence to business problems and the application of geoscience to addressing the challenges of climate change. With over 25 years experience in GIS, IT and AI applications, growing several successful IT companies, Feargal is an established global thought-leader, innovator and disrupter in the spatial sciences.

Peter Finch

Peter Finch is the CTO of Gamma Location Intelligence and has in depth experience in software engineering, cloud technologies, product design and software systems architecture.

With a special interest in location intelligence, Peter has worked to deliver many cloud based solutions in this field. Peter has been involved in a number of energy projects including an EU research program, ENERFUND and has worked on the challenges of climate change, particularly in the insurance industry.

Fintan Smyth

Fintan is director of BERWOW, and Building Physics Manager of Saint-Gobain Construction Products, Ireland since 2011. After more than 15 years in architectural practice, established Finergy in 2009 as a community-based Passive House Designer and Sustainability consultant. He was seconded to the Department of Energy in 2012 to develop the national residential renovation strategy as Technical Manager for Better Energy Financing and completed his MSc Architecture focusing on the calculation and communication of residential renovations.
Contact Us
If you would like to know more about how you can benefit from BERWOW-Home or our new products, use the contact details below

Unit 25
Docklands Innovation Park
East Wall Road
Dublin 3
D03 P2K2