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Membership of ACE is limited to twenty-four UK based companies which have substantial interest in energy conservation equipment and services. Current members include controls manufacturers, energy service companies and manufacturers and distributors of insulation materials, listed below.

Ciga Logo color dow honeywell instagroup
Insulation guarantors Manufacturers of extruded polystyrene insulation products Suppliers of domestic heating and combustion controls Insulation manufacturers

CIGA is an independent agency with its own secretariat that provides independent 25 year Guarantee covering cavity wall insulation. It is governed by a council of “System Designers” (who supply the insulation material) and registered installers, with support from trade associations and Government bodies.


Dow is a diversified chemical company that harnesses the power of science and technology to improve living daily. The Company offers a broad range of innovative products and services to customers in more than 175 countries, helping them to provide everything from pharmaceuticals to paints, packaging and personal care products.


Honeywell are the leading suppliers of domestic heating and combustion controls in the UK with products that include time, temperature, gas and water controls, designed to provide the homeowner with the best in comfort, energy and health solutions.


InstaGroup was founded in 1980 in response to an increasing public awareness of the need to conserve heat and energy, both to protect the environment and reduce consumption of the world’s resources.


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Insulation manufacturers Manufacturers of mineral wool insulation products Suppliers of plumbing and heating products Manufacturers of mineral wool insulation products

Kingspan Insulation specialise in the solution of insulation problems and offer the widest range of insulants available from any UK or Irish manufacturer. Kingspan Insulation is a member company of the Kingspan Group plc, one of Europe’s fastest growing building product groups.


Knauf Insulation is UK’s leading insulation company. It represents one of the most respected and progressive names in European building products. Knauf Insulation is the only UK manufacturer of glass mineral wool, rock mineral wool and extruded polystyrene insulation products, giving an unrivalled range for building, H&V, process and appliance insulation, as well as fabrication applications.


With over 490 branches nationwide, Plumb Center is one of the UK’s leading suppliers of plumbing and heating products including central heating systems, bathrooms, showers, drainage and renewable technologies. It has developed training centres in Leamington Spa and Sevenoaks where around 13 renewable products courses are on offer, and has 38 commercial Centers of Excellence located in carefully selected branches across the UK.


Rockwool Ltd, based near Bridgend, South Wales is the UK’s leading manufacturer of mineral wool insulation for thermal, fire and acoustic protection. Only Rockwool is authentic and wholly natural, recreated from natural processes that exist only in nature.


SIG Insulation

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Distributors of insulation, roofing and commercial interior products Manufacturers of mineral wool thermal and acoustic insulation for domestic and industrial buildings Energy-saving solutions for heating, cooling and hot water Manufacturers of heating and hot water systems 

Sheffield Insulations has 50 years experience in insulation distribution. As part of the SIG plc Group, we supply materials for thermal and acoustic, dry lining, fire protection and house building.We offer more than 50,000 brand name products from leading manufacturers with rapid responses to customers enquiries via our 20+ branch network.


Superglass Insulation Ltd., which has 211 employees, began operations at its Stirling site in 1987 and quickly established itself as one of the UK’s leading manufacturers of insulation products. Superglass offer a comprehensive range of products, which are certified for use throughout Europe. They are manufactured from glass fibre mineral wool and are designed to provide high quality thermal and acoustic insulation.


The Vaillant Group is established and active with production and research and development sites in over 20 countries worldwide. As the UK’s number 1 heating manufacturing group, Vaillant Group’s UK operations include the market leading brands Vaillant, Glow-worm and Heatline. The Vaillant Group is an international family-owned company with more than 135 years experience in the heating and hot water technologies industry. As one of the world’s market and technology leaders, the company develops and produces tailor-made products, systems and services for heating, cooling and hot water, and is the one of the largest European manufacturers within the sector.


Bosch Thermotechnology Ltd. is the UK operation of the Bosch group’s heating and hot water division, manufacturing condensing boilers as well as solar water heaters and ground source heat pumps. Part of the Bosch Group, our products are designed, manufactured, sold and distributed with the quality and reliability that is synonymous with the Bosch name.



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