Frost Drainage Systems manufacture a range of specialist drainage products to include floor drains, rodding eyes, roof drains and grease separators.

Icopal is a UK manufacturer of world class waterproofing and acoustic products. Our range of products cover all areas, from the roof to the basement. Our leading UK divisions are Anderson Monarflex Limited, manufacturers of construction and roofing membranes including built-up flat roofing, pitched roofing, rooflights and roof windows. Enviromentally friendly green roofs and solar energy roofing membranes. Anderson Monarflex supply structural damp proofing and waterproofing membranes, vapour control membranes, tanking membranes and protection sheeting. Monarfloor Acoustic Systems are manufacturers of a market leading range of acoustic flooring systems for either wood, steel, or concrete flooring. Monarflex Geomembranes manufacture and install a range of ground membranes from gas and radon control membranes to root barrier and containment linings.

Alumasc Exterior Building Products are a major UK supplier of premium construction products and brands. Alumasc Rainwater Systems are a leading manufacturer of BBA certified architectural aluminium rainwater goods. A complete range of aluminium gutters, downpipes and integrated fascia soffits. Alumasc Rainwater also supply cast iron rainwater pipes and gutters for historic and restoration sites, with bespoke designs available to match or replace existing installations. Alumasc are suppliers of Harmer drainage systems that include roof outlets and below ground drainage. For internal drainage, Harmer provide cast iron soil and waste systems, floor drains, shower drains and wetrooms. Alumasc also provide world class BBA certified waterproofing and green roofing systems. Included in the range are Derbigum flat roofing membranes, Hydrotech structural waterproofing and ZinCo green roofs. Also BBA Certified is Alumasc's specialist thermally efficient, insulated render systems which utilise a wide range of silicone, mineral and polymer-modified decorative render finishes.

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