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How to find a qualified EPC assessor in the UK

Energy assessor measuring building exterior

To find a qualified EPC assessor, use the Gov for England, Wales, and Northern Ireland, or the Scottish EPC Register assessor search if your property is in Scotland. Both tools let you search by postcode and confirm that an assessor holds current accreditation. Before you pay anyone, ask for their accreditation scheme name and membership number, then cross-check it on the central register. Completeepc is one accredited supplier available for domestic and commercial EPC assessments in London.

  • Search the central register by postcode (England, Wales, Northern Ireland)
  • Use the Scottish EPC Register for properties in Scotland
  • Ask every assessor for their accreditation scheme name and membership number before booking
  • Verify that number directly on the register or with the scheme

Pro Tip: Save the assessor’s membership number before the visit. If the EPC is not lodged on the national register after the assessment, you will need it to raise a complaint with the scheme.

Key takeaways

Finding a qualified EPC assessor means using the official central register, verifying the assessor’s accreditation scheme membership number, and confirming in writing that the certificate will be lodged on the national register before you pay.

Point Details
Use the official register Search GOV.UK for England, Wales, and Northern Ireland; use the Scottish EPC Register for Scotland.
Verify the membership number Ask for the accreditation scheme name and number, then cross-check on the central register.
Match assessor to property type Domestic properties need a DEA; commercial buildings require an accredited non-domestic assessor.
Confirm lodging in writing An EPC is not legally valid until lodged on the national register; get this commitment before paying.
Completeepc for London Completeepc delivers accredited domestic and commercial EPCs across London, with every certificate lodged as standard.

Table of Contents

Where can you find an accredited EPC assessor near you?

The central register, accessible via GOV.UK, is the official starting point for England, Wales, and Northern Ireland. Enter your postcode, select domestic or commercial, and the tool returns a list of accredited assessors in your area. You can also search by an existing certificate number or property address to retrieve a previous EPC.

Scotland operates separately. The Scottish EPC Register assessor search is the correct tool for Scottish properties, and the approval process for assessors there differs from the rest of the UK. Treating the central register as universal is a common mistake that can send you to an assessor who is not approved to work in Scotland.

Practical search checklist:

  • Your postcode
  • Property type: domestic (house, flat) or non-domestic (commercial, industrial)
  • Preferred maximum travel distance
  • Whether you need a domestic energy assessor (DEA) or a non-domestic accredited assessor

When to contact MHCLG or a scheme directly:

  1. If the register returns no results for your area, GOV.UK lists support contact details for further assistance.
  2. If you suspect an assessor’s membership has lapsed, contact the named accreditation scheme directly using the details on the certificate or the scheme’s own website.
  3. If you need guidance on which assessor type applies to a mixed-use building, the scheme helplines can advise before you book.

Who is legally permitted to produce an EPC?

Only accredited energy assessors who are members of a government-approved accreditation scheme may produce an EPC in the UK. Property owners and landlords cannot self-certify, and a certificate produced by anyone outside an approved scheme has no legal standing.

The domestic and non-domestic routes are distinct. A domestic energy assessor (DEA) is qualified to assess houses, flats, and similar residential buildings. Non-domestic EPCs require a separately accredited non-domestic assessor, and the certificate must include the assessor’s details alongside an advisory report with cost-effective improvement recommendations. Using a domestic assessor for a commercial property produces an invalid certificate.

Key statutory points:

  • EPCs are required under the Energy Performance of Buildings Regulations
  • The certificate must be lodged on the national register to be legally valid
  • The EPC must be made available to buyers or tenants at the point of marketing

Accreditation matters beyond the certificate itself. Schemes require members to hold professional indemnity insurance (PII), complete continuing professional development, and submit to quality assurance audits. A membership number is not just an identifier; it confirms the assessor operates within a monitored framework.

How do you verify an assessor’s credentials before booking?

Verification takes five minutes and protects you from paying for a certificate that turns out to be invalid. Work through these steps before you commit to any assessor.

  1. Ask for the accreditation scheme name and membership number. Any legitimate assessor will provide both without hesitation.
  2. Cross-check the membership number on the central register or directly with the scheme. Confirm the membership is current, not lapsed.
  3. Confirm the assessor is qualified for your property type. A DEA qualification covers domestic properties; non-domestic buildings need a separately accredited assessor.
  4. Request evidence of professional indemnity insurance. Schemes require PII as a condition of membership, but asking for confirmation is reasonable.
  5. Confirm the EPC will be lodged on the national register. An EPC is not valid until it is lodged; get this commitment in writing before you pay.

You can also verify surveyor credentials using independent UK guides that walk through the same checks for related property professionals.

Questions to include in your quote request:

  • How many assessments of this property type have you completed in the past year?
  • What is your typical turnaround from site visit to certificate delivery?
  • Will you confirm in writing that the EPC will be lodged on the national register?
  • What is your accreditation scheme membership number?

Pro Tip: Request a written quote that states the assessor’s membership number and confirms the certificate will be lodged. If an assessor refuses to put either in writing, treat that as a reason to look elsewhere.

What happens during an EPC assessment?

An assessor visits the property and inspects the building fabric, heating system, hot water provision, ventilation, and fixed lighting. No invasive works are required; the assessor works from visual inspection and measurements. They then apply standardised calculation methods (SAP for domestic properties, or approved software for non-domestic) to produce the energy rating.

On-site inspection is mandatory for a valid EPC. Desktop-only assessments, where no site visit takes place, are not a substitute and should be treated as a red flag.

What you receive:

  • A digital EPC lodged on the national register, rated A–G
  • An advisory report listing cost-effective improvement recommendations
  • The assessor’s details on the certificate, enabling direct verification

Typical timing and cost factors:

  • A domestic assessment usually takes 45–60 minutes on site
  • Certificate delivery typically follows within one to two working days
  • Fees vary by property size, complexity, and location; costs differ across assessors, so comparing two or three quotes is sensible
  • Unusually low quotes can indicate missing credentials or a failure to lodge the certificate

What should you do if you’re unhappy with your EPC?

The complaints route is straightforward. Start with the assessor, then escalate if needed.

  1. Contact the assessor directly and set out your concern in writing.
  2. If unresolved, contact the assessor’s accreditation scheme. The scheme’s contact details appear on the EPC itself.
  3. If you need further support, GOV.UK lists contact details for MHCLG and the central register team.

Accreditation schemes do more than list members. They conduct competence checks, run quality assurance audits, require PII, and enforce continuing professional development. When you complain to a scheme, you are engaging a body with real authority to investigate and act.

Documents to have ready when raising a complaint:

  • A copy of the EPC (the certificate reference number is on the document)
  • The assessor’s name, employer or trading name, and membership number
  • Any written correspondence with the assessor
  • Your original quote or booking confirmation

How do you choose between assessors and spot red flags?

Price is not the only variable. An assessor who is cheaper but unaccredited will cost you far more when the certificate turns out to be invalid.

Decision criteria:

  • Current accreditation scheme membership (verifiable on the register)
  • Relevant experience with your property type
  • Clear written quote confirming lodging and membership number
  • Realistic turnaround time stated upfront
  • Willingness to answer verification questions without hesitation

Red flags to watch for:

  1. No membership number provided, or refusal to share it
  2. Unusually low quote with no explanation
  3. Offer of a desktop-only assessment where a site visit is required
  4. Request for cash payment with no receipt or written confirmation
  5. No mention of lodging the certificate on the national register

Checking EPC certificate requirements before you request quotes gives you a clearer picture of what a legitimate assessment should include, making it easier to spot gaps in what an assessor is offering.

What clients often miss when choosing an EPC assessor

The single most common oversight is skipping the membership number check. Most property owners assume that if an assessor has a website and answers the phone, they must be accredited. That assumption is wrong often enough to matter.

A second issue is accepting a desktop-only quote without questioning it. For most property types, a site visit is not optional; it is a legal requirement for a valid certificate. An assessor who offers to produce an EPC from floor plans alone is either misinformed or cutting corners.

Accreditation schemes exist precisely because these gaps occur. They enforce PII, monitor quality, and give you a formal complaints route if something goes wrong. Checking a membership number before you book takes less time than disputing an invalid certificate afterwards.

Completeepc: accredited EPC assessments for London properties

Completeepc provides accredited domestic and commercial EPC assessments across London, with experienced assessors qualified for both residential and business properties. Every certificate is lodged on the national register as standard, so you receive a legally valid EPC without needing to chase confirmation. Pricing is competitive, with quotes provided upfront and no hidden charges. Whether you are a landlord preparing a rental property, an agent managing a sale, or a business owner meeting compliance requirements, Completeepc offers a straightforward, accredited service. Get a quote today at Completeepc.

Sources

The following official registers and guidance pages are the authoritative sources for verifying assessor credentials and certificates in the UK.

FAQ

Who is allowed to issue an EPC in the UK?

Only an accredited energy assessor who is a member of a government-approved accreditation scheme may legally produce an EPC. Property owners cannot self-certify.

How long does an EPC last?

An EPC is valid for ten years from the date of issue, unless a new assessment is carried out before that date.

How much does an EPC assessment cost?

Fees vary by property size, complexity, and location. Comparing two or three written quotes from accredited assessors is the most reliable way to judge whether a price is reasonable.

What should I do if my EPC was never lodged on the register?

Contact the assessor first. If unresolved, raise a complaint with the assessor’s accreditation scheme, whose contact details appear on the EPC or can be found via GOV.UK.

Do I need a different assessor for a commercial property?

Yes. Non-domestic buildings require an accredited non-domestic energy assessor. A domestic energy assessor (DEA) qualification does not cover commercial or non-residential properties.

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