Welcome to the Emerald House Group Emerald House Green Engineering Limited is an award-winning London based TfL & Network Rail building services and fabric contractor working within the rail industry as a problem solver for over twenty years. We offer fast track air-conditioning, mechanical, ventilation and electrical and cabled services design, installation and maintenance using our own directly employed high calibre engineering staff trusted and well known in the field. Also under the Emerald House Group, Emerald House Green Environments offers bespoke HVAC solutions to the residential sector including full design and build and maintenance solutions and is a specialist for commercial electric vehicle charging (EVC) installation and maintenance nationally. Integrity is our standard which gives our customers a guarantee of quality and is backed by multiple industry accreditations, certifications and testimonials. As well as our much-loved Powrmatic “CoolSleep” brand for residential air-conditioning systems, we are proud of our reputation for delivering a full range of building services projects in highly secure, complex and private residential environments. To compliment this, for over twenty years we have also specialised in electrical testing, remediation and HVAC & Public Health maintenance and are very proud to engage in 2020 and beyond as a partner with ENGIE.