Marlin PVC-U and aluminium outward opening casement window systems can achieve a Window Energy Rating of Band A. Through continuous evaluation and improvements in design and quality testing, we have devised a suite of products that maximises the retention of solar heat gain within the property, whilst minimising any thermal and air loss. And because our systems are designed to provide high levels of energy efficiency, you'll benefit from reducing your carbon emissions and the ability to lower your heating bills.

The PVC-U used in Marlin systems is thermoplastic, which means it can be repeatedly melted and reformed. As a result it can be recycled easily and cost effectively. Marlin recycle all its own waste and from that generate new profiles, which are used throughout the ancillary range of products. So throughout the whole manufacturing and supply process you are guaranteed a quality product of the highest standards.

• Our windows and doors provide an outstanding barrier against heat loss- even in the most extreme weather conditions.
• Windows and doors made from PVC-U and aluminium negates the use of timber and therefore has a lower impact on the environment.
• By recycling waste our profile manufacturers can generate new products whilst still retaining the highest standards in quality of material.
• Our windows and doors do not require painting and therefore do not consume additional harmful materials or generate associated waste.
• The entire manufacturing process - from production to installation - is confined to the UK and Ireland thereby minimising transportation and fuel consumption from wider exportation.

The BFRC window energy rating (WER) certificate numbers for PVC-U outward opening casement windows are 682 (band C), 681(band B) and 1544(band A).

For A-rated aluminium outward opening casement windows the BFRC WER certificate numbers for these high performance products are 1464, 1465 and 1466.

Installing Energy Saving Recommended double glazing can cut heat loss through windows by half.