Product Accreditations

Product Accreditations

GAP has one of the widest product ranges in the PVC- U Building industry, stocking everything from uPVC Roofline, Tapco Slates, Soudal Silicones & Sealants, FloPlast Guttering & Underground Drainage and of course the composite door that has been protecting Britain’s homes for over 20 years, Rockdoor.

To ensure our customers know that we only stock the best products on the market, we strive to ensure that all our products have the latest accreditations – more details of these can be found below.

Homeline Roofline & Cladding

Manufactured by Homeline our range of roofline products include uPVC Cladding, Fascias and Soffits, all of which carry a comprehensive guarantee and are BSI approved meaning they are specifically designed to meet new building regulations, giving both the installer and homeowner complete peace of mind.  Our range of Homeline Roofline also carries the ISO 9001 & 14001 standards ensuring all of our products are manufactured to the highest quality every time.

Along with our range of standard roofline we also stock Homeline’s recycled roofline, the only recycled roofline on the market.  Manufactured from a virgin PVC-U outer skin with a recycled PVC-U core there is no difference in appearance, but you can rest assured that you are doing your bit for the environment!


Rockdoor remains at the forefront of the market thanks to constantly achieving and exceeding industry standards. Most recently renewing the Kitemark BSI PAS24:2014 accreditation.

BFRC (British Fenestration Rating Council) and Build Check independently check that a Rockdoor is the most thermally efficient composite door on the market with the largest range of A rated doors available.

Rockdoors are also available with Secured by Design accreditation, a Police backed security initiative.

To stay up to date with the latest Rockdoor news visit

FloPlast Guttering

All FloPlast Guttering and associated downpipes and accessories that are stocked by GAP carry the BSI Kitemark (KM501316) ensuring the products meet the latest building regulations. As with all of the products we stock FloPlast products also come with comprehensive guarantees giving the installer and homeowner total peace of mind.

Firestone Rubber Cover

Firestone Rubber Cover is becoming increasingly popular, likely down to its superior durability and low cost. BBA approved, Firestone Rubber Cover has not just been quality assessed but a full product and process control has been conducted to ensure that products are constantly manufactured to the expected high standard.


Our wide range of Soudal products carry a broad range of accreditations to ensure the installer and homeowner are getting the best quality products. Amongst the many accreditations Soudal has achieved ISO 9002, a certification for quality assurance in production – ensuring all Soudal products are manufactured to a high standard, every time. 

Tapco Slate

Manufactured to look like real slate, Tapco Slate is becoming the roofing material of choice for many thanks to its light-weightness and pre-marked fixing points. Carrying a host of certifications and accreditations including BBA and BSI Tapco Slate has gone through vigorous testing to ensure it exceeds the benefits of traditional slate.

For more information about certifications and accreditations, please contact us via our contact form or your account manager. Specific product certifications are available upon request.


Product Accreditations |