Display Energy Certificates (DEC) Across the UK

Fast, compliant DEC surveys for public buildings – schools, councils, NHS, leisure and more.

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Display Energy Certificates (DEC)

Who Needs a Display Energy Certificate (DEC)?
Energy ratings for public buildings are different from commercial property, in that an operational rating based on actual energy bills is used to illustrate how the building performs.

Any local authority property or building which received state funding of any kind and that is visited by the public must have a Display Energy Certificate available for view.

This includes: -

  • Schools
  • Colleges
  • NHS
  • Councils
  • Leisure Centres
  • Libraries

Understanding Display Energy Certificates (DEC) in the UK

Compliance Guidelines, Floor Area Thresholds, and Public Display Requirements

In the United Kingdom, Display Energy Certificates (DECs) are a legal requirement for buildings occupied by public authorities or institutions providing public services that are frequently visited by the public. Since July 2015, the regulations state that any such building with a total useful floor area exceeding 250 square metres must prominently display a valid DEC.
 
The validity period of the certificate depends on the size of the building: for those between 250m² and 1,000m², the DEC and its accompanying Advisory Report are valid for 10 years. For larger buildings over 1,000m², the DEC must be updated annually, while the Advisory Report remains valid for seven years.
 
These certificates must be displayed in a conspicuous place clearly visible to the public, such as a main lobby or reception area, to provide transparency regarding the building's actual energy consumption and environmental impact.
 
 

Providing certificates since 2010

About Our DEC Services

We provide a complete Display Energy Certificate service for public buildings across the UK.

  • UK-wide coverage – A network of fully qualified DEC assessors covering all regions.
  • Fast turnaround – Typical completion is within 5 working days from site visit (urgent bookings often available on request).
  • What’s included:
    • On-site assessment and data collection
    • Energy use calculation and DEC production
    • Lodgement on the national register
    • Advisory report with recommendations for improving energy efficiency

You’ll receive everything needed to comply with DEC legislation and clearly display your building’s operational energy performance.

How it works

Step 1 – Send building details
Share basic information (address, floor plan, 12 months energy copy bills/meter readings/consumption reports).

Step 2 – Site visit scheduled
We agree a convenient date and time. Our qualified assessor attends site to collect the necessary data to provide the supporting Advisory Report.

Step 3 – Assessment & certificate issued
We process the information, produce your DEC and advisory report, and lodge it on the official register. PDF copies are emailed to you, ready to print and display.

Step 4 – Renewal reminders
We track expiry dates and send reminders ahead of renewal so you stay continuously compliant. Renewals require fresh consumption data but no visit.

Pricing guidance

We offer transparent, building-based pricing with discounts for portfolios and academy trusts.

From £199 per building

  • Volume discounts for multiple sites – Reduced rates available for portfolios, frameworks, and multi-year agreements.
  • Fixed quotes provided in advance so you know exactly what to budget.

Sectors we Serve

We provide DEC assessments for a wide range of public buildings, including: Schools, Local Authorities, NHS and healthcare facilities, leisure and community buildings. Whether you manage a single site or a large, mixed portfolio, we tailor our service to your operational needs and compliance obligations.

Previous experience

We have delivered thousands of DECs over the last 16 years. We serve schools, academy trusts, local authorities, NHS Trusts and independent medical practices. Ask us for testimonials from our previous clients.

 
Enquire about our DEC services

What our customers say

I cannot recommend the services of Tudor Edward enough. I have been working with Nick for 12 years to produce my annual DEC certificate and he is always efficient, timely and a great support with energy-saving tips. Just sending our energy bills to him for the year enable him to produce our statutory DEC certificate for display in school. Janet Skelton, School Business Manager, Kirkstall St Stephen's C of E Primary School, Leeds

I just wanted to email and express our appreciation for the service you provide each year to us. You make what would be a complicated job so much easier and no question is ever a daft one! We are so glad you were recommended to us all those years ago and we made that leap of faith. Dawn Oliver, School Business Manager, All Saints C of E Primary School, Leeds

PHP have a large portfolio of public healthcare sites across the UK and Ireland and therefore require a high level of support to meet our mandatory energy assessment obligations. We have worked with Tudor Edward for a number of years and they have always delivered consistently high quality and pro-active service at a reasonable cost to ensure PHP continue to be fully compliant with legislative requirements.-Edward Chute, Facilities Manager, PHP

Tudor Edward are experts in creating clarity and understanding around energy efficiency. Our medical centre has huge energy bills and we did not know where to turn on how to reduce them. We were so relieved to find a company who could speak plainly but provide advice that made a difference. They are worth their weight in gold.

Nick has been a reliable and consistent help in ensuring our school’s ongoing legal compliance. While constantly under cost pressures, Nick has produced sensible and practical changes we can make to help reduce our substantial energy consumption.