Crystal Sigma is a leading specialist in refrigeration, ventilation, heating and electrical services, air conditioning Essex, London, for the home and the business place. Our highly qualified engineers guarantee a professional and reliable service, and we specialise in being flexible and responsive to your needs. When your home or business needs a professional and reliable air conditioning company, approach Crystal Sigma to provide the services that London is benefiting from. With offices based in, Oxford, Essex and Cambridge, and covering all of Greater London, Oxfordshire, Cambridgeshire, Hertfordshire and Buckinghamshire – our customers find us approachable and accessible. Our coverage of such a vast regional area means we appreciate local knowledge and local needs. Therefore, we have a better idea about what properties in rural environments need and how it differs from the needs of a high density urban office block; enabling us to provide customised and practical solutions.
