UK's First Overheating Consultancy

Keeping people comfortable
in the homes they deserve

Accredited energy and overheating compliance consultants for architects, developers and self-builders across England, Wales and Scotland.

CIBSE TM59 Accredited Approved Document O Same-week turnaround UK-wide coverage

The UK's first consultancy dedicated to overheating strategy

Overheating occurs when indoor temperatures exceed those acceptable for human comfort. Prolonged exposure to high temperatures has serious health consequences — particularly for the vulnerable, elderly and young.

We provide a single, cohesive strategy developed according to each site's environmental constraints — reducing heat gains and providing practical solutions that remove excess heat.

"We believe people should be able to live in comfort in properties all year round."

3
Nations covered — England, Wales & Scotland
9+
Core compliance services under one roof
500+
Assessments completed across the UK
100%
Dedicated to overheating compliance
✓ CIBSE TM59 Accredited ✓ Approved Document O ✓ Standard 3.28 Scotland ✓ SAP Accredited

Meet the directors behind UK Overheating

Jonathan Howell
Jonathan Howell
Director

Jonathan is a founding partner of UK Overheating, specialising in the field of building acoustics and energy consultancy in the residential sector. He has previously founded and managed several successful companies, developing experience in SAP and Energy assessment, Air tightness & Acoustic consultancy, while previously being a qualified Code for Sustainable Homes Assessor.

B.Sc. Acoustics MIOA
James Healey
James Healey
Director

James is a founding partner of UK Overheating and is an expert in acoustics and overheating. He is a principal author of the Acoustics, Ventilation and Overheating: Residential Design Guide and of the Guide to Demonstrating Compliance with the Noise Requirements of Approved Document O. He is also a contributor to the Future Homes Hub document Part O 2021 (England) Technical Guidance. James further advances his contribution to industry as Chairman of the Institute of Acoustics specialist Building Acoustics Group.

B.Sc. Acoustics MIOA APM PMQ CIBSE Affiliate Member
Peninsula Acoustics
Strategic Partnership

Proud partnering business with Peninsular Acoustics

Working alongside Peninsular Acoustics, we offer clients a joined-up approach to building compliance - combining overheating strategy with expert acoustic consultancy under one coordinated service. Fewer consultants to manage, more cohesive solutions for your project.

Learn more

Certified to the highest industry standards

🏛️
CIBSE
Chartered Institution of Building Services Engineers
📋
TM59 Accredited
Overheating assessment methodology for dwellings
🏗️
Approved Doc O
England & Wales Building Regulations compliant
🏴󠁧󠁢󠁳󠁣󠁴󠁿
Standard 3.28
Scottish Building Standards accredited assessor
SAP Accredited
Standard Assessment Procedure energy rating

Everything you need for full compliance

A complete range of accredited services, coordinated by one team — covering all assessments architects, developers and self-builders need to achieve sign-off.

"Working with James is a pleasure and an education. His enthusiasm and expertise in the field of acoustics and overheating mitigation is infectious. A pragmatic approach, driven by a desire to arrive at cost-effective solutions, shines through."

Churchill Retirement Living
Development Consultant
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0330 133 5776