Reading an EPC before making an offer: a buyer’s question sheet
Before making an offer, find the full Energy Performance Certificate (EPC), match it to the property and turn its improvement suggestions into questions. Use it to understand energy efficiency alongside separate enquiries about condition, costs and any work you might want to undertake.
This guide is for people buying a home to live in in England and Wales, including buyers searching around Manchester. It offers general preparation information, not legal advice or a property-specific assessment.
1. Find the certificate for the right home
Start with the official find an energy certificate service. It allows searches by postcode, street name and town, or certificate number. The service covers England, Wales and Northern Ireland; Scotland has a separate service.
Check the full address carefully, particularly for flats, converted buildings or homes with similar names. Save the certificate and record its date so you can refer to the same document when asking questions.
GOV.UK’s EPC guidance says certificates are valid for ten years and can be downloaded free through the official service. If you cannot find a matching certificate, ask the agent to supply it or explain the position. Do not infer an exemption from a missing search result; ask for the explanation and supporting information.
2. Read beyond the headline letter
An EPC describes energy efficiency using a scale from A, the best rating, to G, the worst. It also contains information about energy use, typical energy costs and steps to improve efficiency.
Read those parts together. Write down the current rating, the improvements suggested and anything in the description that you do not understand. Ask an energy assessor to explain unclear technical wording rather than guessing what it means for the home.
When preparing your budget, label the certificate’s figures as typical costs. Ask the assessor what those figures describe before using them in your own plans. Avoid treating them as a promise of your future bills, or turning suggested improvements into an assumed saving or a ready-made renovation budget.
3. Ask what has changed since the assessment
Use the certificate’s date as a prompt for a conversation about subsequent work. Ask the seller, through the agent, whether heating, windows, insulation or other relevant features have changed since the assessment, and what supporting records are available.
Keep the answer and its evidence separate. A seller’s explanation gives you something to follow up; record which documents have actually been supplied and which are still outstanding.
For example, if a seller says insulation was added after the EPC was produced, ask for the work’s date, description and available paperwork. Ask an energy assessor how that information relates to the certificate. Do not calculate a replacement rating yourself.
4. Separate improvement ideas from condition questions
The government’s How to buy a home guide identifies energy assessors as a contact for EPC queries and surveyors as professionals who assess physical condition.
The guide also explains that an EPC is not a home survey: it does not indicate whether the elements assessed are in good or bad condition and assumes they are working correctly. Do not use the EPC to settle concerns about visible damage or the condition of the heating system. Give those concerns to your surveyor and ask what inspection or specialist follow-up is appropriate.
Before relying on an improvement suggestion in your plans, ask a suitable professional about its suitability, scope and cost for this particular property. Ask your conveyancer which permissions, restrictions or supporting records need checking. Keep unresolved costs visible in your decision notes instead of assuming the work will be straightforward.
5. Copy this question sheet before your offer
Send the agent the property address and certificate date, then use these questions to organise the replies. This is a preparation tool; adapt it to the home and your proposed improvements.
| Question | Who to ask initially | What to record |
| Is this the correct EPC for the home being sold? | Agent | Matching address and certificate supplied |
| What relevant work has happened since the assessment? | Seller through agent | Work described, dates and documents available |
| What does this description or recommendation mean? | Energy assessor | Explanation and any remaining uncertainty |
| What condition checks should I arrange? | Surveyor | Proposed inspection and its limitations |
| What would a proposed improvement involve? | Suitable specialist | Scope, property suitability and written estimate |
| Could permissions or restrictions affect my plans? | Conveyancer | Evidence needed and enquiries outstanding |
Mark each reply as answered, awaiting evidence or needing professional advice. Add the person responsible for the next enquiry and a follow-up date. Identify which unresolved points could change your willingness to proceed before deciding your next step.
Use the second-viewing checklist to organise wider property questions. If you need to identify a local office, browse the Manchester agent directory and confirm directly which agent handles the property.