Survey costs
The energy certificate band is high and the survey lists roof repairs. Why can both be true?
Because they answer different questions. An energy certificate band is a modelled rating built from standard assumptions about the dwelling. A home survey lists defects the surveyor saw, including roof repairs, from a look at the building. A high band can sit beside slipped coverings, tired flashings or a valley that needs work, because the certificate is not a roof inspection and the survey is not an energy model. Neither paper cancels the other. The survey has not recalculated the band. The certificate has not denied the defects.
Last reviewed 24 October 2026. Written for buyers in England and Wales unless this answer says otherwise. No named surveyor has signed this page. It is general guidance, not a report on your house, and not legal advice.
What is the fuller explanation?
Energy certificates use inputs such as heating type, insulation and assumed condition. They do not walk the loft or lift a slate. A house can model well and still have a local roof defect that lets water in. The survey's job is that physical condition. Reading the band as a promise that the covering is sound mixes two products. Reading the roof repairs as proof the band must be poor makes the opposite mistake. Both documents can be right about the same house on the same day.
Give your solicitor and any lender each document for what it is. Do not ask the surveyor to move the energy band to match the roof section. Do not ask an energy assessor to delete a repair the survey recorded. How a later roof repair might affect a future certificate is a fresh assessment, not a figure this inspection has produced. Deal with the roof items the survey names. Keep the band as a model, not as a clean bill for the covering.
What should you ask your surveyor?
- Which roof repairs does the survey list, quite apart from the energy band?
- Does the certificate assume roof insulation the loft inspection could not confirm?
- Are you at risk of quoting the band as though it were a condition report?
What are the typical next steps?
- Read the energy band and the roof repairs as answers to different questions.
- Do not tell a lender the high band clears the roof defects.
- Deal with the roof items from the survey, not from the certificate.
Costs vary with the building and with who you instruct. Where this page does not cite a published figure, ask the surveyor, a relevant specialist, or your solicitor for a written quote. Do not treat a forum average as the price.
Also asked about this
If the roof is repaired, must the energy band change?
Not automatically. A weathering repair may not change the inputs an energy model uses. The survey has not predicted a new band and has not said the certificate is wrong. After substantial energy works, a new certificate is a separate instruction. Do not expect this band to move because a slate was refixed.
Can a poor band appear later even if every roof repair is done?
Yes. The band depends on the whole model, including heating, walls and windows, and on how the assessment is made. Finishing the survey's roof list does not reset those other inputs. The survey has not promised an energy result. Treat the repairs as condition work, and any new certificate as its own assessment.