Welcome to EHGE - An Award Winning HVAC Contractor specialising in a collaborative approach developed over 25 years to give our customers the best possible value for money.


EHGE is a long-standing family-owned specialist HVAC contractor based in London, undertaking bespoke solutions within the South-East of England and beyond. Cool-Sleep (www.cool-sleep.co.uk) is our branded name for residential air-conditioning within Emerald House Group Limited, being accredited with relevant trade qualifications such NICEIC for Electrical installations and RefCom Elite (F-Gas) for air-conditioning. As well as also being an award-winning HVAC & Electrical Contractor, we are as a preferred contractor for Powrmatic Limited a specialist in the supply and installation of bespoke "no outside condenser " vented and water-cooled heat-pump air-conditioning solutions to all types of domestic residences and other environments requiring unusual solutions. Through our long established relationship with premium air-conditioning brands such as Powrmatic and Mitsubishi, we can always find solutions to even the most difficult locations and at the heart of our success lies on our customer service being open and honest at all times. Please contact us directly for a no-obligation survey and quotation.