Doherty Energy


DOHERTY ENERGY are a progressive consultancy based in Cambridgeshire. We specialise in energy calculations, sustainability and renewable energy solutions. We can get involved at all stages of a project, from initial feasibility right through to the issuing the energy performance certificate on completion.

Our areas of expertise include:


Feasibility Studies


Energy Statements


On Construction Domestic Energy Assessors (OCDEA)


SAP Assessments, Design Stage, Predicted Energy Assessment, As Built and the

On Construction Energy Performance Certificate (OCEPC)


Area Weighted U Value Calculations to demonstrate compliance with Approved Document L1B


Code for Sustainable Homes Assessments


BREEAM Domestic Refurbishment Assessments


Renewable Energy Studies


Water Efficiency Calculations


Energy Performance Certificates (EPC)




We can also provide the following services:


SBEM Calculations


Air Pressure Testing


Sound Testing


Ventilation Flow Testing



Our client base includes homeowners, self-build developers, private and public sector investors and small to larger residential developers.


We have a small team, offering a variety of skills and experience in the construction industry. The company was formed in 2005 primarily on the planning and architectural side, with the building services and energy consultancy becoming more of a priority in the past few years with the increased emphasis on this discipline by central government and local authorities alike.


Jason is a degree qualified Building Services Engineer with a keen interest in Energy Efficiency and Renewable Energy.  He is also an authorised SAP, a Code for Sustainable Homes Assessor and a BREEAM Domestic Refurbishment Assessor.  Jason’s knowledge and enthusiasm for this area of the business has proved invaluable with the ever increasing demand by Government, Local Authorities and the consumer.


This team pride themselves on offering a varied, yet personal service to all their clients and feel that communication and a personal service is the key to a successful business.

© 2020  Doherty Energy Limited