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GRP / Fibreglass

As officially approved contractors for Topseal, we are among some of the finest, fully-trained and approved installers of Glass Reinforced Plastic (GRP) in the UK, and have the most skilled workforce in Guernsey. We have been using GRP (also known as fibreglass) for over 15 years, specifically Topseal’s GRP as it is the leading brand and therefore well-trusted in the industry. GRP can be used for both warm and cold roof applications.


Felt Roofs

Our experience fitting felt roofs spans projects of all sizes, ranging from small residential porches to many of Guernsey’s schools and even the flat roofs at Beau Sejour Leisure Centre. We are repeatedly chosen and trusted for these projects. Our official approval includes using the flagship Goldseal product – a cost-effective roofing solution with extraordinary mechanical strength, efficiency and stability. All of our felt roofers have been formally trained in the UK, qualifying them in the highest standard of workmanship and detailing.


Single Ply Systems

We are Guernsey’s only accredited IKO Contractors, proving our quality of workmanship and professional integrity. The IKO is the only manufacturer in the UK that makes single ply membranes for high-performance flat roof solutions. Given that IKO is well-regarded as the UK market leader, being approved by this esteemed company means you can confidently trust our highly skilled Apex team to efficiently complete contracts of any size to the highest standard.

You can choose from our wide range of single ply systems that are easy to use and require no heat when being installed. Our product range includes the IKO polymeric single ply system, known for its durability, minimal maintenance, and environmentally sound materials.