Electrics and gas
The gas meter is in a cellar that has no vent the surveyor could see. Why is that a gas-safety question for a registered engineer rather than a damp rating?
Because an unvented cellar can hold gas if the meter leaks, and that is a gas-safety question for a Gas Safe registered engineer, not a damp rating. The surveyor could see no vent. That observation is about ventilation of a gas fitting. It is not a damp reading, and it is not a test of the meter, the joints or the pipework. The home survey has not certified the installation. It has recorded a meter in a cellar with no vent in view.
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?
Damp ratings describe moisture in fabric. A missing vent on a gas meter describes a space where gas could accumulate. Mixing the two sends the wrong person. The surveyor is not carrying out a gas tightness test by noticing a wall with no air brick. HSE expects gas work to be done by a Gas Safe registered engineer. This visit did not do that work, and it should not be rewritten as a score for damp on the cellar wall.
Tell your solicitor that the meter sits in a cellar with no vent seen, and ask a Gas Safe registered engineer to inspect that arrangement before you treat it as acceptable. Do not commission a damp treatment because the gas note sounds like a cellar problem. The two findings are different. The survey has not measured gas and has not rated the wall for moisture under this heading.
What should you ask your surveyor?
- Did you see any vent, air brick or opening serving the cellar, or none at all?
- Was the comment limited to the meter location, rather than a damp score?
- Did you test the gas installation, or only record what was visible?
What are the typical next steps?
- Ask a Gas Safe registered engineer to inspect the meter in that cellar.
- Do not file the missing vent as a damp rating.
- Tell the solicitor the gas fitting was seen with no vent.
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 cellar smells dry, can the vent note be dropped?
No. A dry smell is not a vent and it is not a gas test. The surveyor still saw no opening that would ventilate the meter space. The question stays with a Gas Safe registered engineer. Damp-free air does not ventilate the gas meter.
Should the cellar wall be injected because the meter is there?
No. Injection treats a damp mechanism in masonry. It does not ventilate a gas meter and it was not what the survey found. The note is the lack of a vent, not a prescription for damp works. The finding stays a missing vent, not a damp treatment.