Tel: 01248 421955
Fax: 01248 421052

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AAC Waterproofing has been established since the 1970s and was one of the first UK companies to adopt and operate extensively with single-ply EPDM membranes.Since then we have developed a wide range of high quality waterproofing systems which offer our clients the very best solution.Our experienced in-house team can design, specify, quote and manage a range of projects from public sector, commercial and private buildings, cutting-edge architectural structures, cladding, tanking, lakes and ponds, to waterproofing for extreme environment situations.Our manufacturer approved workforce allows us to obtain fully backed warranties giving our clients complete piece of mind.

AAC Waterproofing Ltd provides a wide range of building solutions from full envelopes to smaller individual roofing projects.Our in house team can design, install, manage and provide future maintenance for all types of projects. Add this to our extensive list of suppliers and you are safe in the knowledge that we have a solution to meet your needs.



AAC Waterproofing specialise in roofing products handpicked for the commercial and industrial roofing sector. Our range of products enables us to provide our clients with the perfect building envelope solution.


Ponds & Lakes

AAC Waterproofing specialise in bespoke made to measure pond and lake liners for domestic and commercial use. Our in house 3D design and manufacturing facilities allow us to construct ponds of all shapes, sizes and depths including working around penetrations for water features.


Green Roofing

AAC Waterproofing work with some of the industry’s leading specialists to provide the ideal green roof solution.

Whether you are looking to aid planning, add storm water management or just want an area of green, our in house specialists can provide advice on the system best suited to your requirements. Systems we work with are Sedum, Biodiverse, Wildflower, Modular and bespoke.



AAC Waterproofing provide tanking and waterproofing solutions for foundations and building structures.

AAC Waterproofing has a range of envelope systems for the commercial and industrial sector. Our range of products enables us to provide our clients with the perfect building envelope solution.


Technical & Customer Support

Our aim is to provide excellent support and technical data to our clients and specifiers. Working as part of the whole project team, AAC specialists are available to discuss all aspects of projects, from design through to the installation and project completion.

A range of technical specification sheets, giving essential data on Prelasti material, its use and performance, are available on request. Our in-house specifier will also prepare bespoke individual specifications on receipt of a J42. This will provide you with the assurance that each element of the project complies with building regulations and client requirements.








AAC reuses waterproof roof membrane in house built out of recycled materials

January 2017

AAC reuses waterproof roof membrane in house built out of recycled materials (June 2014)

AAC Waterproofing has recycled its roof first used in the construction of a groundbreaking UK home to waterproof a new house made almost completely from used materials.

The Waste House has been built using nearly 20,000 toothbrushes, old video and music tapes, denim jeans and floppy discs among other items and materials destined for landfill.

AAC Waterproofing reused the rubber roofing membrane it originally supplied for Channel 4’s Grand Designs programme, ‘The House That Kevin Built’, in which one of the UK’s first A+ energy-rated houses was built in just six days.

The company, which employs 30, creates environmentally friendly ‘made-to-measure’ waterproof roof membranes from Prelasti EPDM at its Gaerwen factory, making it faster to install.

AAC Waterproofing Managing Director Ian Parry said: "Just like the original Grand Designs house build in London, this was a great project to be part of. It was amazing to see how so many different waste materials could be put to great use. I never thought I’d see toothbrushes used for insulation!

"The same architects from the Grand Designs programme worked on the Waste House, so they knew our product was green and durable enough to be reused. All we had to do was reinstall our material at the new site."

Prelasti EPDM has high environmental rating, a guarantee of 20 years and a life expectancy exceeding 50 years. Thanks to the material’s durability it has been used by AAC Waterproofing to roof TV adventurer Bear Grylls’ lighthouse off the North Wales coast and Snowdon’s summit café.

AAC Waterproofing was not the only North Wales company involved in the Waste House project. Holywell-based Kingspan also donated damaged panels that have insulated the home, together with the toothbrushes, VHS and old music tapes.

Despite the Waste House’s negative carbon footprint and 85% use of recycled materials, it is one of the few homes in the UK to gain an A-rated Energy Performance Certificate.

Students, apprentices, local builders and school children have all been involved with the project, with the ambition to train young people around emerging green industries.

Similar in size to a detached house, the Waste House will now function as Brighton University’s sustainability learning centre and will be one of the venues for the forthcoming Brighton Festival.

Double Certification - Super Cheryl leads Anglesey roofing business to new heights

January 2017

Double Certification - Super Cheryl leads Anglesey roofing business to new heights

CHERYL Thomas modestly describes herself as Office Administrator for Gaerwen-based roofing specialists AAC Waterproofing.

But few admin staff can claim to have helped their company halve costs and win coveted industry certifications and accreditations while handling admin and managing reception.

Cheryl Thomas (left) with Laura Hibbert Financial Director AACThese are the achievements Cheryl and her proud employers are celebrating this week. AAC, which manufactures and installs waterproof rubber roofing for major construction projects around the UK, has been awarded ISO 9001 and ISO 14001 certifications for its management and environmental practices.

Few roofing companies of AAC’s size hold these certificates, making Cheryl’s work all the more remarkable.

It took her 12 months to compile all the forms and procedures needed to make the company more efficient and more sustainable.

Thanks to her hard work and eagle eye, the company has drastically reduced its fuel and tool hire costs, and now has a 100% recycling rate.

She said: “The night before the final assessment, I couldn’t sleep. I was in before six to make sure everything was right.

When the assessor told me we’d passed, I was over the moon. It’s been really hard work but already everyone can see the benefits of it and I’m just so pleased for the company.”

Cheryl has worked for AAC Waterproofing for six years and lives in Llangefni. Next in her sights is reduced energy consumption.

AAC Waterproofing Managing Director Ian Parry said: “I know how capable Cheryl is, but to get both ISO certifications in one go is absolutely brilliant."

“We hold a lot of industry awards, including Investors in People, but this tops the lot. I’m so proud of what Cheryl’s achieved. Thanks to her, AAC is a fitter and stronger business.”

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