Efficient, Accurate, and Trusted Energy Assessments since 2007

With nearly two decades of experience in energy assessments, we have successfully completed thousands of energy assessment projects, from small house extensions to large-scale developments including hospitals and airport terminals. Trusted by hundreds of satisfied clients, we provide reliable energy efficiency solutions that help reduce costs and meet regulatory requirements. Whether you’re a homeowner, architect, or developer, you can count on professional service and in-depth knowledge to guide your project to success.

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Our Services

Part L Building Regulations Compliance

SAP and SBEM calculations to ensure Part L compliance for all types of buildings. Our assessments help you meet energy efficiency regulations, optimize performance, and secure building approval.

Energy and Sustainability Statements for Planning Applications

Clear and accurate energy and sustainability statements will get your planning application approved faster, supporting your submission and meeting local authority energy efficiency and environmental requirements.

Overheating Assessments

Stay ahead of regulations with expert overheating assessments. Using dynamic thermal modelling, we ensure your design meets Building Regulations Part O, CIBSE TM52 and TM59—balancing comfort, compliance, and performance from the start.

Dynamic Thermal Simulations

DTS can provide detailed insights into your building’s performance—optimising heating and cooling system sizing, predicting energy consumption, assessing solar PV output, and ensuring thermal comfort throughout the year.

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og@ogenergy.co.uk

+442080995978