Electrics and gas
Can a surveyor call a gas fire safe because the chimney looked clear?
No. A clear-looking chimney pot is not a test of the fire, the flue or the ventilation. The surveyor is not certifying the appliance. A Gas Safe engineer is the person who can inspect a gas fire.
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?
Open-flued gas fires depend on the flue and on air to the room. A blocked gather, a closed vent or a damaged fire can be invisible from the hearth rug. The survey may say the fire was present and whether it was lit. That is all. Approved Document J is the building-regulations document for combustion appliances. It is not a certificate for this fire.
If the fire stays, get it checked. If it goes, the chimney questions remain: rain, pots, ventilation of an unused flue. Tell the engineer and the chimney contractor which future you intend. Do not light the fire on moving day to celebrate a survey that never tested it.
What should you ask your surveyor?
- Was the fire lit, and did you see a vent?
- Are you describing the stack, the appliance, or both?
- What would a Gas Safe engineer see that you did not?
What are the typical next steps?
- Separate the chimney quote from the gas-fire check.
- Do not cap the chimney and leave the gas fire connected.
- Ask the seller for any recent gas record and then decide whether you still want your own.
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
Is an electric fire in a fireplace a gas question?
No. It is an electrical fitting in a former flue. The flue may still need ventilation and a cap. The plug is not a Gas Safe matter.
Can you remove a gas fire yourself before completion?
No. It is not your house, and gas disconnection is for a registered engineer. After you own it, the same registration rule applies.