What does Mainer Associates do?

Mainer Associates is a UK sustainability consultancy specialising in BREEAM, Life Cycle Assessment, Whole Life Carbon Assessment, ESG, Fitwel, planning sustainability and carbon management for the built environment.

Who does Mainer work with?

Mainer works with developers, architects, contractors, asset owners and public-sector organisations across UK building and infrastructure projects.

What is CarbonCentric?

CarbonCentric is Mainer's digital carbon management platform, helping project teams track, manage and reduce construction carbon using live project and supply-chain data.

Can Mainer support planning applications?

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

Aerial cityscape view of a downtown area with a tall glass building on the right and a railway running through the center, with a mix of residential and commercial buildings, parking lots, and green spaces under a partly cloudy sky.

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

An aerial view of a multi-story building with a rooftop garden, including trees, shrubs, pathways, benches, and small structures.

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.