AAC Waterproofing

ISO 9001 and ISO 14001 certification


“As a company, we tender for a significant number of contracts in the public sector and with large commercial clients. Having both these certifications has certainly reduced both time and complexity in completing PQQs, and they are viewed by our customers as a ‘stamp of approval’, demonstrating that we are a well-organised company with proper policies and procedures in place.

“I was a little daunted at first, knowing nothing about the ISO system but working alongside consultant Dave Maxwell, I got to grips with it quite quickly as ISO in a Box™ is straightforward and very logical. The fact that Dave has a construction background was a real bonus as he understood our business very quickly. It’s my job to keep the system updated, and life is now a lot easier.”

Cheryl Thomas, Office Administrator at AAC Waterproofing


The company

Established in the 1970s, AAC was one of the first UK companies to adopt and operate with single-ply EPDM membranes. It has a purpose-built facility providing accurate and efficient prefabrication of high-quality waterproofing solutions.

It holds the only UK licence for the installation of ‘Prelasti’, a rubber membrane that is lightweight and environmentally friendly with a proven durability of more than 50 years.

Its workforce of 20+ included a team of highly experienced in-house installation technicians. The company offers an extensive range of BREEAM-rated products and projects covering the public sector, commercial and private buildings, leading-edge architectural structures, cladding, tanking, lining for lakes and ponds through to waterproofing for extreme environments.

The challenge

Although successfully tendering for, and winning, work it recognized that the big construction companies and utilities were increasingly demanding ISO 9001 and 14001 certification and that it would help the company increase its conversion rate. Achieving these ISO standards would provide the leverage to reach preferred supplier status with key customers.

The methodology

Given his previous career, Ascentor consultant Dave Maxwell was already aware of the contracting process AAC needed to go through. He spent time with Cheryl, familiarizing himself with how they worked and conducting an audit to identify any gaps in their procedures. A lot was already in place, but not necessarily in the right place, so a lot of the initial work was to pull disparate existing information and documents together to integrate it into the new system and make it easily and speedily accessible.

New formalised procedures were introduced – such as management review meetings already going on in the background – but there was no documented evidence, and the Standards required us to set agendas for these meetings. New logs were created to flag up any problems and improvements that should be visible in the system. Vehicle checks, along with waste records and site diaries were introduced for each project the company was working on.

In less than a year, AAC Waterproofing obtained both ISO 9001 and ISO 14001 certifications – and Dave continues to keep in contact with the company to ensure the system is running smoothly and offer any advice needed.

The benefits

Few roofing companies hold this certification, and accordingly, AAC has escalated its probability of winning new customers whilst enhancing its likelihood of retaining existing customers. The company has dramatically reduced its fuel and tool hire costs and now has a 100% recycling rate. According to its MD, the company is now a much fitter and stronger business and, given the ease of implementation and use offered by ISO in a Box™, is now looking at working towards ISO 18001 certification.

Green Bird - White top right

Contact Us

Your cyber security challenges and our pragmatic approach – we could be the perfect fit.
Contact the team at Ascentor for an informal chat.

Get in Touch