JOT ENERGY CONSULTANCY LIMITED

JOT Energy Consultancy Limited is the South East’s leading building‑energy consultancy, founded in 2010 by Jeff O’Toole to provide independent, specialist advice on energy performance and compliance. The firm assists owners, developers and landlords with every stage of a building’s lifecycle – from new‑build certification to deep‑retrofit optimisation – ensuring that properties meet the stringent requirements of Irish building regulations while remaining comfortable and cost‑effective to run.

Their core services include Building Energy Rating (BER) certification for residential and commercial premises, airtightness testing, thermal imaging, ventilation design and verification, acoustic (sound) testing, and comprehensive deep‑retrofit assessments. JOT Energy also offers expertise in Part L, Part F and Part E compliance, overheating calculations and daylight analysis, and can guide clients through SEAI grant applications and other funding routes. By combining practical on‑site testing with detailed reporting, they help clients identify the most effective improvements – such as roof and wall insulation – to boost energy efficiency and lower running costs.