Firenergy

Commercial EPC in Bath & the South West

Accredited Non-Domestic Energy Performance Certificates for commercial landlords, business owners, and property agents across Bath, Keynsham, Radstock, Frome, Bradford on Avon, Trowbridge, and the wider Somerset and Wiltshire region.

What Is a Commercial EPC?

A Non-Domestic Energy Performance Certificate (EPC) is a legally required document showing the energy efficiency of a commercial building, rated on a scale of A (most efficient) to G. It assesses the building’s fabric and services — including heating, ventilation, lighting, and insulation — rather than how a specific occupant uses the space.


In England, a valid commercial EPC must be in place before a non-domestic building can be sold or let. The certificate must be made available to prospective buyers or tenants at the earliest opportunity. Failure to comply can result in financial penalties enforced by local authorities.


Commercial EPCs are valid for 10 years and, unlike domestic EPCs, can only be produced by a qualified and accredited Non-Domestic Energy Assessor (NDEA). Our director holds NDEA accreditation through the Quidos scheme, giving Bath and South West commercial clients access to a fully accredited, insured, and experienced assessor.

Which Commercial Properties Need an EPC?

The vast majority of non-domestic buildings sold or let in England require a commercial EPC. This includes:

Certain building types are exempt — including religious buildings, temporary structures, and some industrial buildings with low energy demand — but exemptions are specific and must be verified. If you’re unsure whether your Bath or Somerset premises requires a commercial EPC, get in touch and we’ll confirm.

Minimum Energy Efficiency Standards for Commercial Properties

Commercial landlords in England must also be aware of the Minimum Energy Efficiency Standards (MEES). It is already unlawful to let a commercial property rated below EPC E. The government has signalled an intention to tighten these standards further in the coming years, with proposals requiring commercial properties to reach EPC B by 2030.

For Bath’s commercial property owners — many of whom manage older, less energy-efficient buildings in the city centre or across nearby market towns — understanding your current rating and the likely cost of improvement is increasingly important for long-term asset planning.

Why Choose Firenergy?

Accredited Non-Domestic Energy Assessor

Commercial EPCs must be produced by a qualified NDEA, not a domestic assessor. Our director holds NDEA accreditation through the Quidos scheme, ensuring your certificate is compliant, properly lodged, and will withstand scrutiny from solicitors, agents, or local authority inspectors.

MEES-Aware Advice

We understand the Minimum Energy Efficiency Standards and what they mean for Bath commercial landlords. We don't just hand over a certificate; we make sure you understand your current rating, your obligations, and what improvements could move the dial if you're approaching the legal threshold.

Experience Across a Range of Commercial Property Types

From city centre retail units and offices to industrial premises and mixed-use buildings across Somerset and Wiltshire, our assessor has experience across the commercial stock typical of the Bath and South West market.

Combined Services Available

If your commercial premises also requires a fire risk assessment, Firenergy can provide both through a single point of contact. Less admin, fewer contractors to coordinate, and a clearer picture of your overall compliance position.

Areas We Service

At Firenergy, we cover up to an hour away from Bath. Check out some of the other towns and cities we cover:

Frequently Asked Questions

Commercial EPCs assess the building itself — its fabric, services, and design — rather than how it is used by a particular occupant. The methodology (SBEM) is different from the residential process (RdSAP), and the assessment must be carried out by a qualified Non-Domestic Energy Assessor rather than a domestic energy assessor.

This depends on the size and complexity of the building. A straightforward office or retail unit may take one to two hours. Larger or more complex premises will take longer. Our assessor will confirm the likely duration when you make an enquiry.

In many cases, yes — particularly where a building is being converted and then sold or let. If you’re converting a property in Bath or the surrounding area and are unsure of your obligations, we can advise based on the specifics of your project.

Yes, if it is still within its 10-year validity period and the building has not changed significantly. If significant works have been carried out — such as heating upgrades, new glazing, or insulation — a new assessment is likely to produce a better rating and may be worth commissioning.