About Us | TM59 Overheating Specialists UK | Elmhurst Certified Assessors
TM59 Overheating Assessment Specialists UK - Elmhurst Certified Part O Compliance Consultants Team
About TM59 Overheating Expert

UK's Leading TM59 & Part O Overheating Specialists

Trusted by architects, developers & planning consultants across the UK. Elmhurst-certified assessors delivering expert TM59 overheating assessments, Part O compliance reports, and dynamic thermal modelling for residential developments.

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TM59 Overheating Consultants Team Meeting - Dynamic Thermal Modelling Experts UK

Our Mission: Expert TM59 & Part O Compliance

We believe that comfortable, overheating-free homes shouldn't come at the cost of architectural vision. As Part O building regulations evolve and CIBSE TM59 requirements tighten, we stand as the trusted bridge between creative design and technical compliance for UK residential developments.

Energy Expertise

Founded by Environmental Economics, a collective of senior energy consultants with over 4,000 completed TM59 assessments.

Technical Innovation

Pioneering the use of dynamic thermal modelling to solve complex overheating risks in new build and conversion projects.

Industry Trust

Elmhurst Certified assessors working to CIBSE TM59 methodology and the highest industry standards.

Why Developers Choose Our TM59 Specialists

More than software operators—we deliver expert Part O compliance solutions and overheating mitigation strategies.

Fast TM59 Turnaround

Construction waits for no one. Our streamlined TM59 assessment process delivers accurate overheating reports within 5 working days, without compromising on precision.

Design-Led Compliance

We think like architects. Our overheating mitigation strategies preserve your facade, layout, and aesthetic intent while achieving Part O compliance.

Cost-Effective Solutions

Over-engineering leads to expensive glazing and cooling systems. We find the optimal balance between TM59 compliance and cost-effective building design.

Elmhurst Certified TM59 Assessor Credentials

Quality and competence are paramount for overheating risk assessments. Here's why UK developers and architects trust our CIBSE TM59 specialists.

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Elmhurst Overheating Competency Scheme

All our TM59 assessors are certified under the Elmhurst Overheating Competency Scheme, the industry-recognised accreditation for overheating risk assessments and Part O compliance in the UK. This ensures every assessment meets CIBSE TM59 methodology standards.

Learn About Elmhurst Scheme →
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Verified TM59 Competence

Specialist training in dynamic thermal modelling, CIBSE TM59 methodology, and overheating risk assessment techniques

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CIBSE Professional Standards

All Part O compliance work conducted to CIBSE and industry best practice guidelines for residential thermal comfort

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NHBC Quality Assurance

Professional TM59 report templates developed in partnership with NHBC for consistent, auditable assessments

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Building Control Ready

Overheating assessment reports prepared to meet Part O regulatory submission requirements first time

Lead Consultants

The experts behind your compliance.

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Lead Overheating Consultant

Architect-trained consultant blending technical thermal modelling with design judgement for UK housing.

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Principal Consultant

Specialist delivering robust TM59 assessments with clear compliance advice for residential developments.

Trusted by UK Architects & Developers

What industry professionals say about our TM59 overheating assessments and Part O compliance services.

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"The TM59 Expert team helped us navigate a tricky Part O application on a high-rise scheme. Their expert overheating assessment advice on glazing specifications saved us thousands in unnecessary costs."
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"Incredibly fast TM59 assessment turnaround. We had a planning deadline looming and they delivered a comprehensive overheating report within 3 working days. Absolute life savers."
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"Finally, Part O consultants who explain dynamic thermal modelling in plain English. The TM59 report was clear, concise and passed Building Control immediately. Highly recommended."

Ready for Expert TM59 & Part O Compliance?

Send us your development drawings today for a free overheating risk review and competitive quote. No obligation, just expert TM59 advice from Elmhurst certified assessors.

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