Pioneering Sustainability in the Built Environment

From BREEAM and CarbonLite to Net Zero strategies, we lead the way in sustainable consultancy, with projects that achieve and exceed environmental targets.

Experts in Compliance & Certification

Navigating sustainability regulations can be complex. Our accredited professionals ensure your project meets the latest industry standards with ease.

Smart Strategies for a Greener Future

We deliver commercially viable sustainability solutions that drive real impact – helping you cut carbon, improve efficiency and future-proof your developments.

Trusted by Leading Developers & Architects

With a track record of success across the UK, we provide sustainability expertise for projects of all scopes and sizes.

Expert Sustainability Consultants

RedSix is a nationally renowned sustainability consultancy, delivering exceptional services to the construction industry. Our expertise spans across projects with global companies and influential developers, showcasing our deep knowledge of the built environment and commitment to excellence.

We are specialists in BREEAM assessments and Net Zero Carbon strategies, leveraging our expertise and accreditations to guide our clients towards achieving ambitious sustainability goals. From planning to operational stages, we offer pragmatic and commercially sound advice tailored to each project’s unique needs.

At RedSix, we’re more than just a consultancy, we’re your trusted partners in sustainability. Our team of experienced professionals combines technical expertise with a personable, proactive approach. We deliver integrated solutions that address sustainability measures throughout every phase of your project, ensuring seamless execution and measurable outcomes.

Industry Leaders in Sustainability

At RedSix, we are at the forefront of sustainability in Wales and across the UK, delivering expert consultancy backed by the latest certifications and industry standards. As one of the only certified Carbon Lite assessors in Wales and a trusted provider of BREEAM, CEEQUAL, and WELL Building consultancy, we help clients achieve the highest levels of environmental performance.

Our team brings decades of experience, ensuring compliance with evolving sustainability benchmarks. With a proven track record of delivering high-impact, data-driven strategies, we are the trusted partner for developers, architects and contractors looking to build a greener future.

36

Projects certified to BREEAM Excellent standard or higher.

Over 40

Years of combined industry experience within the team.

6,111,283

Total sq ft. of BREEAM certified buildings

About

Our expert accredited team, with over 40 years of industry experience, ensures your project achieves its sustainability objectives while remaining cost-effective and efficient.

Services

Whether you need full sustainability assessments, project coordination, or compliance guidance, we provide tailored solutions that drive measurable impact.

Projects

Our projects showcase extensive experience across a vast array of sectors, we help clients navigate the complexities of sustainability with honest, practical, and commercially sound advice.