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Commercial EPC

Commercial EPC Assessors

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Commercial EPC Assessors

Since the 1st of October 2008, a Commercial EPC has been a legal requirement for anyone selling or leasing a non-domestic property. It is the responsibility of the landlord, property owner, or agent to obtain a valid Energy Performance Certificate before the transaction takes place.

A Commercial EPC outlines the energy efficiency of a building and provides suggestions for improvement. With years of industry experience, we provide reliable and competitively priced EPC assessments tailored to meet compliance and energy standards.

Our approach is detailed and strategic, we not only assess your building’s energy performance but also offer expert advice on how to improve it, helping you aim for a higher EPC grade. Our satisfied clients trust our service for being both accurate and actionable.

commercial EPC survey using professional energy assessment equipment

Who needs Commercial EPC?

You need a Commercial EPC if you are selling or leasing out any non-residential property. This applies to landlords, agents, developers, and even tenants in some cases. However, there are a few exemptions:

  • Worship places.
  • A structure that is temporary and expected to last less than two years.
  • Properties with a floor area of less than 50 square metres are stand-alone.
  • A property for which a demolition order has been issued and is due for demolition.
  • Low energy demand properties like livestock shelters.

What Does a Commercial EPC Involve?

The process includes a full inspection of the property by an accredited commercial energy assessor. Here’s what’s typically assessed:

  • Building construction & materials

  • Heating and cooling systems

  • Ventilation & insulation

  • Lighting and power use

  • Size and usage of the premises

After collecting data, the assessor uses specialised software to calculate your building’s EPC rating, which will be scored between A (most efficient) and G (least efficient). The final certificate will include:

  • Your EPC rating

  • Recommendations for improvement

  • Validity for 10 years

  • Legal compliance for marketing or letting the property

Benefits of a Commercial EPC

A Commercial EPC offers more than just legal compliance. It provides:

  • Insight into energy inefficiencies and problem areas

  • Professional advice to reduce operating costs

  • Boosted environmental credentials for your business

  • Potential eligibility for energy-related grants and incentives

  • Support for lease negotiations, sales, and company CSR goals

Who can do a commercial EPC?

Only a qualified Non-Domestic Energy Assessor (NDEA) can conduct a Commercial EPC. They must be certified to the required level for the building type and registered with an approved accreditation body.

Hiring an experienced and properly accredited firm ensures your EPC is compliant with current government standards and accepted by relevant authorities.

how are commercial EPCs calculated?

EPC ratings are calculated using government-approved software. The assessor collects details such as:

  • Thermal efficiency

  • Heating, cooling, and ventilation performance

  • Air leakage levels

  • Insulation and glazing

  • Presence of renewables (solar, wind, etc.)

These inputs are processed to generate an energy efficiency score from A to G, allowing property owners to see exactly where improvements can be made.

how to improve commercial EPC rating?

Improving your EPC score starts with acting on the recommendations in your certificate. This might include:

  • Upgrading insulation

  • Switching to energy-efficient lighting or HVAC systems

  • Adding renewable energy sources

  • Fixing building envelope issues (e.g., draughts, glazing)

Implementing these measures helps reduce energy bills and boost your building’s rating, something especially valuable when preparing to sell or let.

Accreditation

Logo of the Residential Property building surveyors Association in blue text on a black background, featuring a stylized roof above the letters "RPSA."
Logo showing a green checkmark within a leaf, labeled "Elmhurst Energy Approved Energy Assessor" in gray and green text, symbolizing certification. building surveyors
Logo of Sterling Accreditation on a green background, featuring a stylized orange lion profile and the motto "setting the standard" in white text.

Frequently Asked Questions

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  • FAQs

Everything You Need to Know

A commercial EPC is legally required when selling or leasing a non-domestic property in the UK. Landlords, sellers, and agents are responsible for obtaining it before any transaction.

It includes a survey of your building’s energy efficiency, covering heating, ventilation, lighting, insulation, and more. The property is graded from A (most efficient) to G (least efficient).

A Commercial EPC is valid for 10 years, provided no significant renovations or changes to the building's structure or energy systems have occurred.

Improving insulation, switching to energy-efficient lighting, upgrading HVAC systems, and sealing air leaks are common methods to improve your property’s EPC rating.

Yes. Exemptions include places of worship, temporary structures (less than 2 years), stand-alone buildings under 50m², and buildings set for demolition.

Typically within 24–72 hours after the survey is completed, depending on property size and complexity.