National Building Compliance
Menu
Row of colourful Victorian terraced houses in London

Energy and Calculations

EPC Certificate

An Energy Performance Certificate (EPC) rates how energy efficient a building is, from A to G. You need one to sell, let or complete a new building. We arrange an accredited energy assessor for homes, commercial premises and new builds.

What is it? An EPC shows a property's energy efficiency rating, with information about its energy use and recommended improvements. Do you need one? Yes, if you are selling, renting out or building a property. You can check for a valid certificate first on the GOV.UK Find an energy certificate service.

If there is no valid EPC, or it has expired, tell us the address and type of property and we will arrange the right assessor.

There are three routes. For a home that is being sold or let, a domestic energy assessor visits. For shops, offices and other business premises, a non-domestic assessor visits, and the type of assessor depends on the building's complexity. For a new building, the EPC comes from the as-built energy calculation.

Coordinating project evidence for EPC certificate

Prepare evidence before the appointment rather than relying on a verbal account of past improvements. An invoice, installation record or dated specification may help establish what was fitted, but the assessor needs to decide whether the information is suitable for the assessment. Make sure documents identify the property and the work clearly. For flats, ask the managing agent about communal heating and access to shared areas. For commercial units, identify the person who can explain plant operation. These preparations help distinguish a genuine information gap from a part of the building that simply could not be accessed.

Energy assessor measuring a 1930s semi-detached house for an EPC

Records supplied with EPC certificate

You receive the EPC, lodged on the government register, with the energy rating and recommendations. Estate agents and letting agents use it in the listing. For a new building, Building Control needs evidence that the EPC has been given before completion.(Source: GOV.UK: Find an energy certificate; Approved Document L, Volume 1: Dwellings (GOV.UK))

The certificate can be downloaded at any time from the GOV.UK register, so you can send buyers, tenants or agents a link rather than a copy.

When EPC certificate is needed

For homes, GOV.UK says you must have an EPC when selling, renting out or building a property, and you must order it for potential buyers and tenants before you market the property. A domestic EPC is valid for 10 years.(Source: GOV.UK: Energy Performance Certificates when selling or renting a home; GOV.UK: Find an energy certificate)

For business premises, GOV.UK says you must have an EPC if you rent out or sell the premises, when a building under construction is finished, or when certain changes are made to the number of parts used for separate occupation. You can be fined if you do not make an EPC available to a prospective buyer or tenant. All EPCs are valid for 10 years. GOV.UK also lists exemptions, such as some listed buildings, temporary buildings and places of worship.(Source: GOV.UK: Energy Performance Certificates for your business premises)

The seller, landlord or person carrying out the building work is responsible for getting the certificate.

GOV.UK says that commercial buildings over 500 square metres that are frequently visited by the public must display an EPC where one has already been produced for the building's sale, rental or construction.

Information to prepare for EPC certificate

  • The full property address, unit reference and intended sale, letting or new-build purpose.
  • Plans showing the extent of the dwelling or commercial premises to be assessed.
  • Arranged access to occupied rooms, roof spaces and heating or plant areas where safely accessible.
  • Documentary evidence for insulation, glazing, heating and renewable installations.
  • Existing certificate details and any as-built SAP or SBEM records for a newly completed building.

EPC route and expiry checker

How this tool decides

Property category

  • Existing home
  • Existing business premises
  • New dwelling
  • New non-domestic building

Reason for checking

  • Sale
  • Letting
  • Building completion
  • No sale, letting or building completion

Possible exemption needing confirmation?

  • Yes
  • No

Existing certificate to check?

  • Yes
  • No

Certificate issue date

Enter your project date.

GOV.UK states ten-year EPC validity; this date does not replace the certificate status on the government register. GOV.UK: EPCs for homes and business premises

Yes

Confirm the possible exemption before deciding whether an EPC is required.

GOV.UK lists exemptions; a listed building or other category does not automatically establish an exemption for this project. GOV.UK: EPCs for business premises

Price on request: no survey scope has been selected for this answer.

Next step: Send details of the possible exemption and check the government register.

Deadline: Agree the project submission date before booking.

No sale, letting or building completion

Check the register and confirm the circumstances before commissioning a certificate.

GOV.UK ties EPC duties to sale, letting, new construction and specified changes; this answer does not settle other duties. GOV.UK: EPCs for homes and business premises

Price on request: no survey scope has been selected for this answer.

Next step: Send the project information for a scoped quote.

Deadline: Agree the project submission date before booking.

New dwelling

Obtain the new dwelling EPC from the as-built SAP assessment.

A new dwelling EPC is produced from the as-built SAP calculation; do not add an existing-home visit fee. Approved Document L Volume 1, 2021 incorporating 2023 amendments: regulations 26–27

Price on request: no survey scope has been selected for this answer.

Next step: Send the project information for a scoped quote.

Deadline: Agree the project submission date before booking.

New non-domestic building

Obtain the new non-domestic EPC from the as-built energy assessment.

The as-built SBEM or other approved model produces the new building EPC; confirm the package rather than adding an existing-building visit. Approved Document L, Volume 2: approved calculation software and BRUKL

Price on request: no survey scope has been selected for this answer.

Next step: Send the project information for a scoped quote.

Deadline: Agree the project submission date before booking.

Existing business premises

Arrange a non-domestic EPC for the stated sale, letting or completion purpose.

GOV.UK states the business-premises EPC duties and ten-year validity; check the register for a newer certificate. GOV.UK: EPCs for business premises

Domestic: £60 to £120 per certificate.

Indicative only. This is a typical UK market range based on prices published by other providers, checked November 2026. It is not a quote. Prices exclude VAT unless stated. Contact us for an accurate price for your project.

Commercial: £150 to £500 per certificate.

Indicative only. This is a typical UK market range based on prices published by other providers, checked November 2026. It is not a quote. Prices exclude VAT unless stated. Contact us for an accurate price for your project.

Checked November 2026.

Next step: Send the project information for a scoped quote.

Deadline: Order the certificate for prospective buyers or tenants before marketing.

Otherwise / result rule

Arrange a domestic EPC for the stated sale, letting or completion purpose.

GOV.UK states the home EPC duties and ten-year validity; check the register for a newer certificate. GOV.UK: EPCs for homes and business premises

Domestic: £60 to £120 per certificate.

Indicative only. This is a typical UK market range based on prices published by other providers, checked November 2026. It is not a quote. Prices exclude VAT unless stated. Contact us for an accurate price for your project.

Commercial: £150 to £500 per certificate.

Indicative only. This is a typical UK market range based on prices published by other providers, checked November 2026. It is not a quote. Prices exclude VAT unless stated. Contact us for an accurate price for your project.

Checked November 2026.

Next step: Send the project information for a scoped quote.

Deadline: Order the certificate for prospective buyers or tenants before marketing.

What to have ready

  • The full property address, unit reference and intended sale, letting or new-build purpose.
  • Plans showing the extent of the dwelling or commercial premises to be assessed.
  • Arranged access to occupied rooms, roof spaces and heating or plant areas where safely accessible.
  • Documentary evidence for insulation, glazing, heating and renewable installations.
  • Existing certificate details and any as-built SAP or SBEM records for a newly completed building.
How we work this out

The figures shown are indicative. They are ranges taken from prices that UK providers of this service have published, and they are here to help you budget. They are not a quote, an offer or a price guarantee from National Building Compliance.

Your actual price depends on details this tool cannot see, including the size and layout of the building, how many units there are, access, location, how complete your drawings are, and how quickly you need the work. It may be lower or higher than the range shown.

Unless a figure says otherwise, prices exclude VAT. The date each range was last checked is shown beside it.

For an accurate, fixed price, send us your project details. We will confirm the scope and quote before any work is booked.

Indicative market costs

Indicative only. This is a typical UK market range based on prices published by other providers, checked November 2026. It is not a quote. Prices exclude VAT unless stated. Contact us for an accurate price for your project. Checked November 2026.
CaseUnitIndicative range
Domesticper certificate£60 to £120

Indicative only. This is a typical UK market range based on prices published by other providers, checked November 2026. It is not a quote. Prices exclude VAT unless stated. Contact us for an accurate price for your project.

Commercialper certificate£150 to £500

Indicative only. This is a typical UK market range based on prices published by other providers, checked November 2026. It is not a quote. Prices exclude VAT unless stated. Contact us for an accurate price for your project.

Checked November 2026.

EPC for domestic in England typically costs £60 to £120 per certificate before VAT, based on prices published by UK providers and checked in November 2026. This is indicative and not a quote.

Indicative only. This is a typical UK market range based on prices published by other providers, checked November 2026. It is not a quote. Prices exclude VAT unless stated. Contact us for an accurate price for your project.

EPC for commercial in England typically costs £150 to £500 per certificate before VAT, based on prices published by UK providers and checked in November 2026. This is indicative and not a quote.

Indicative only. This is a typical UK market range based on prices published by other providers, checked November 2026. It is not a quote. Prices exclude VAT unless stated. Contact us for an accurate price for your project.

Get an accurate price for this project

Comparing project inputs for EPC certificate

Project inputPractical check
Existing dwellingArrange access and gather improvement records.
Business premisesIdentify assessed areas and shared services.
New buildingCoordinate the certificate with the as-built model.

(Source: GOV.UK: Energy Performance Certificates when selling or renting a home)

What affects the cost of EPC certificate

EPC pricing depends on whether the property is domestic or non-domestic, its size, layout and the evidence available. Commercial premises with several systems require more assessment work. Appointment timing depends on access arrangements, especially where tenants, managing agents or plant-room keyholders need to attend.

Price
[[TO SUPPLY: EPC price from]]
Turnaround
[[TO SUPPLY: EPC turnaround time]]

Which projects need EPC certificate?

  • Existing home being marketed

    Identify the dwelling correctly, including converted flats and annexes. Check what evidence is available for hidden insulation before the assessment visit.

  • Commercial unit changing occupier

    Define the unit boundary and any shared plant. A shop beneath flats needs a clear description of the premises being assessed.

  • Recently completed building

    Speak to the assessor responsible for the construction energy model before arranging an unrelated survey. This avoids commissioning overlapping work for the same address.

How the EPC certificate service works

  1. Check GOV.UK for an existing valid certificate.
  2. Send us the address, property type and floor area, and whether it is for sale, letting or a new build.
  3. We arrange a domestic or non-domestic assessor, depending on the building.
  4. For existing buildings, the assessor visits and records construction, heating, glazing and lighting.
  5. For new buildings, the EPC is produced from the as-built SAP or SBEM calculation.
  6. The certificate is lodged on the government register and sent to you.
Three routes to an Energy Performance Certificate. Labels on the diagram: Existing home; Domestic; energy assessor; Business premises; Non-domestic; energy assessor; New build home; On-construction; energy assessor; EPC lodged; on the register; A; B; C; D; E; F; G; Rating from A to G.
The type of building decides which assessor produces the certificate.

Questions about EPC certificate

What is an EPC?

A certificate that rates a property's energy efficiency from A, the most efficient, to G, with recommendations for improvement.

How do I get an EPC?

Check GOV.UK for a valid one first. If there is none, an accredited assessor must produce one. Send us the address and we will arrange it.

How long is an EPC valid?

GOV.UK states that EPCs are valid for 10 years.

How much does an EPC cost?

It depends on the property and whether it is domestic or commercial. Published prices: [[TO SUPPLY: price from]]. Turnaround: [[TO SUPPLY: turnaround time]].

Does a new build need a separate EPC visit?

No. A new build EPC comes from the as-built SAP or SBEM calculation.

Is a Display Energy Certificate the same?

No. A DEC shows actual energy use in certain public buildings. An EPC shows the building's potential performance.

Request a quote

Tell us about the project once. We will confirm which services apply and send a quote.

All fields marked * are required.