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Pioneering Sustainable Development

UK Sustainability Consultancy for Whole Life Carbon, BREEAM & Net Zero

Mainer Associates is a UK sustainability consultancy supporting developers, architects, contractors and asset owners across the built environment. We specialise in BREEAM, Life Cycle Assessment (LCA), Whole Life Carbon Assessment (WLCA), ESG, Fitwel, planning statements and digital carbon management through CarbonCentric.

Why Clients Trust Mainer

  • 150+ projects delivered

  • 50+ years combined experience

  • 60+ BREEAM assessments

  • Carbon reductions up to 323 kgCO₂e/m²

  • 90% repeat business rate

What We Do

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  • We deliver BREEAM assessments across all major building types, from commercial and education buildings to residential schemes and large mixed‑use developments. Our team has extensive experience achieving BREEAM Outstanding and Excellent ratings, leveraging early‑stage feasibility work, pre‑assessments and strategic design input to secure cost‑effective, regulatory‑aligned outcomes.

  • We assess the environmental impact of buildings, products, and processes from cradle to grave. Our Life Cycle Assessment work forms the backbone of Environmental Product Declarations (EPDs), supporting both manufacturers and project teams with clean, defensible numbers for low‑carbon specification. We provide full LCA modelling, supply‑chain data capture, and alignment with EN 15804, ISO 14025, and ISO 21930 standards.

  • CarbonCentric is our proprietary carbon‑management platform designed to deliver real‑time embodied‑carbon insight across construction supply chains. Used on live projects, CarbonCentric has achieved:

    • 323 kg CO₂e/m² average carbon saved across completed projects

    • Real‑time dashboarding, interactive A4 emissions maps, subcontractor logins and transparent data capture

    This allows smarter, earlier carbon reductions and stronger project compliance.

  • We help organisations embed environmental and social governance into their operations and development strategies. Our ESG support aligns businesses with modern sustainability expectations - strengthening resilience, stakeholder confidence and long‑term value creation.

  • Mainer assesses and guides developments towards Fitwel certification - enhancing occupant health, wellbeing and social value through evidence‑based design and operational strategies. Our expertise supports clients aiming to build healthier, future‑ready environments.

  • We assess potential environmental impacts of development proposals and support clients through the planning process. Our EIA work ensures developments minimise environmental harm and meet regulatory expectations for responsible, sustainable delivery.

  • We prepare robust planning statements that communicate a development’s sustainability credentials - supporting approval, compliance and stakeholder engagement. Our team ensures sustainability is integrated meaningfully into planning submissions and supported with the required evidence.

View Services
Meet the Experts

Shaping Industry Standards

Our expertise doesn't just help projects achieve sustainability targets - we help shape the frameworks that define them.

  • Contributed to the development of BREEAM Guidance Note 55

  • Helped transform how Design Stage Assessments are evidenced

  • Embedded sustainability requirements into procurement and contractual processes

  • Over 50 years of combined sustainability expertise

Read How Mainer Helped Influence BREEAM

Sectors We Support

Commercial

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Education

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Government

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Light Industrial

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Residential

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Science & Technology

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Sports & Leisure

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Projects

Partners

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A logo with a dark blue circular background and text that reads 'Wates Innovation Partner' in white font with a small illustration of a plant growing from the earth and hands holding the globe at the bottom.

CarbonCentric now live on the Wates WIN Portal!

We’re pleased to share that CarbonCentric is now live on the Wates WIN Portal as a Wates Innovation Partner!

Built by Mainer Associates, CarbonCentric helps construction teams manage carbon in real time—bringing supply-chain data, material choices, transport and site emissions into one clear platform.

The partnership will help more project teams turn carbon targets into practical action during delivery.

Find out more about CarbonCentric by visiting our new website: www.carboncentric.io.

Latest News

Featured
3 Ways Whole Life Carbon Assessments Reduce Project Risk
3 Ways Whole Life Carbon Assessments Reduce Project Risk

When people think about project risk, carbon is rarely the first thing that comes to mind. Programme delays. Cost pressures. Planning challenges. Design changes. Stakeholder expectations.

These are the risks most project teams actively manage. Yet increasingly, carbon sits at the centre of all of them.

That's where Whole Life Carbon Assessments (WLCA) can play a critical role.

Read more →
How Whole Life Carbon Assessments Support ESG and Net Zero Reporting
How Whole Life Carbon Assessments Support ESG and Net Zero Reporting

Discover how Whole Life Carbon Assessments strengthen ESG and net zero reporting by measuring embodied and Scope 3 emissions, improving transparency and supporting better project, investment and procurement decisions.

Read more →
Retrofit vs Rebuild: What is the Carbon Cost of This Decision?
Retrofit vs Rebuild: What is the Carbon Cost of This Decision?

When a building reaches the end of its useful life, the question is usually:

Retrofit or rebuild?

But are we asking the right question?

The real challenge isn't just cost, programme or performance—it's carbon.

Read more →
Read More

Frequently Asked Questions

  • Mainer Associates is a UK sustainability consultancy specialising in BREEAM, LCA, whole life carbon, ESG, Fitwel, planning sustainability and carbon management for the built environment.

  • We work with developers, architects, contractors, asset owners and public-sector organisations across UK building and infrastructure projects.

  • CarbonCentric is Mainer’s digital carbon management platform, helping project teams track, manage and reduce construction carbon using live project and supply-chain data. Explore further by visiting www.carboncentric.io.

  • Yes. Mainer provides sustainability statements, whole life carbon assessments, circular economy statements, energy statements and related planning-stage sustainability reports.