Crystal Sigma Ltd
Air conditioning and building services from London offices
About Crystal Sigma Ltd
Crystal Sigma Ltd designs, supplies, installs, services and repairs air-conditioning systems for homes and businesses. It also works on ventilation, refrigeration, air-source heat pumps, heating, plumbing, electrical systems and mechanical and electrical maintenance.
The company has over 20 years of experience and offices in London, Oxford, Essex and Cambridge. Its engineers handle individual domestic units as well as large commercial and industrial installations, with completed work including hotels, restaurants, universities, gyms and private homes.
Customers can request a free site survey at home or at work. The team can take an installation from initial design through fitting and commissioning, supports systems from major manufacturers, and says all its work is guaranteed and insurance backed.
Accreditations
- NICEIC Approved Contractor
Areas covered
- Barnes
- Battersea
- Bayswater
- Belgravia
- Bexleyheath
- Brent
- Camden
- Chelsea
- Chiswick
- Clapham
- Covent Garden
- Crouch End
Services
Air conditioning
- Home air conditioning
- Business air conditioning
- Commercial air conditioning
- Industrial air conditioning
- Air conditioning servicing and repairs
Mechanical services
- Ventilation
- Refrigeration
- Air source heat pumps
- Plumbing and heating
- Commercial boilers
- Water treatment
- Kitchen extraction
Electrical and maintenance
- Electrical services
- M&E maintenance services
- Lighting
- Building management systems
What their website says about each service
- Air Source Heat Pumps
“At Crystal Sigma we supply and install the latest high efficiency air source Heat Pumps.”
- Central Heating
“specialist in air conditioning, refrigeration, ventilation, heating and electrical services for residential and business customers”
- Electricians
“Crystal Sigma is a leading specialist in air conditioning, refrigeration, ventilation, heating and electrical services”
- Gas Boiler Installation
“Our team of engineers can install new commercial boiler systems matched to your requirements”
- Plumbers
“This includes boilers, heating, air conditioning systems, Home Ventilation Systems, Smoke Ventilation System, electrical circuitry, lighting, plumbing, drainage”