Asbestos in pre-2000 homes
A white rope seal shows in an old flue opening and it was not disturbed. What should you not do with that rope before it is identified?
You should not pull, cut or take out that white rope before it is identified. It shows in an old flue opening and it was not disturbed, so the survey has a visual note of a seal, not a sample. Buildings built or refurbished before 2000 can contain asbestos, and a rope in an old flue is a known place to leave alone until someone competent identifies it. The home survey has not named the fibre. It has not cleared it either.
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?
Old flue openings were sometimes sealed with rope that needs identifying rather than tugging. The survey can say a white rope is visible and that it was left in place. It cannot tell the fibre by colour. White is not an identification, and neither is age alone. A home survey does not sample by looking, and it does not invite the rope to be removed so the hole looks tidy. Until it is identified, the right record is that it stays put.
Tell the solicitor the rope is unsampled and undisturbed. If the opening is to be reused or stripped, ask an asbestos surveyor to identify the seal first. Do not ask a builder to whip it out on the back of this report. The home survey has not produced an identification and has not said the flue is clear to alter.
What should you ask your surveyor?
- Where is the white rope visible, and was it left undisturbed?
- Did you identify the fibre, or only record a seal that was not sampled?
- What did you state should not be done with the rope before identification?
What are the typical next steps?
- Leave the rope in place until it is identified.
- Do not pull it out on the back of this visual note.
- Ask an asbestos surveyor if the flue opening is to be altered.
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 rope is frayed, should it be tidied before you move in?
No. Fraying is a reason to leave it, not to tidy it. The survey did not disturb the rope and did not identify it. Pulling loose ends would disturb an unsampled seal. Buildings built or refurbished before 2000 can contain asbestos. An asbestos surveyor should identify it before anyone alters the opening.
Does a blocked-up fireplace elsewhere clear this rope?
No. Another opening is a different detail. This white rope was seen in this flue and was not sampled. The survey has not identified it and has not said other fireplaces answer for it. Each seal stands on its own look, and this one remains unidentified. Do not treat a boarded fireplace in another room as a sample.