Posting a message to the forum will remove the above advertisement
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Checkout our Plumbers Insurance area - heavily discounted Public Liability Insurance and Van Insurance specifically designed for plumbers.

Discuss Old hot air heating flue in the Fittings & Pipes area at

Thread Status:
Not open for further replies.
  1. scov44UK

    scov44UK New Member

    Hi I was wondering if you could provide me with help/your advice regarding an issue I have with a redundant flue from a old hot air heating system (was removed years a go).

    I was in the loft and noticed the flue collapsed from the wall to the vent in the lofts roof. It looks like it snapped near the end connecting to the wall.

    As the flue is cement type material and from the early 70's, I'm guessing it could contain asbestos. So I plan to double bag the flue up and dispose of it at specialist asbestos site (wearing mask/gloves etc). Also throwing away any loft insulation that may have dust on (it's minimal).

    The flue from the loft wall runs in the wall down to under the stairs where the old hot air system used to be. The issue I have is can I cover up the flue exit from the loft wall and the section going into the vent in the loft roof? I thought about using expanding foam or cap it off or box the areas.

    Concerns I have is that damp could appear in the wall near the stairs where the flue is if I cap it off or fill it with expandable foam.

    Please can I have your thoughts?

    I've just been made redundant :-( so ideally I would like to rectify this issue myself, if possible.
  2. scov44UK

    scov44UK New Member

    please see pics



  3. SimonG

    SimonG Trusted Plumber

    Get it tested and don't mess about with it if it's asbestos. Get a company in.
  4. scov44UK

    scov44UK New Member

    Testing the flue that's fallen off? Can't I just dispose of if I take the recommended measures? There's a facility down the road.
  5. king of pipes

    king of pipes Trusted Plumber GSR

    Looks very much like asbestos to me my advice if your in doubt treat it as asbestos removal and disposal should be by a licenced contractor . Kop
    • Like Like x 1
  6. scov44UK

    scov44UK New Member

    Thanks. My council actually accepts small amounts of asbestos products like that.

    The flue that's in the wall looks unbroken. So do you think I should fill it with expanding foam? or just leave it? Removing it would be a massive job as it runs all the way down the wall near the stairs.

  7. Riley

    Riley S. Mod Trusted Plumber GSR Top Contributor!!

    Protect yourself get someone in
    • Like Like x 1
  8. scov44UK

    scov44UK New Member

    For asbestos cement you don't need a licensed individual -

    Where can you find asbestos? Asbestos cement

    I might get it tested to make sure but I'll just do it myself rather than pay £1000's to take a pipe to the tip! Maybe I'm being naive but if I take the recommended steps then it should be fine.
  9. Riley

    Riley S. Mod Trusted Plumber GSR Top Contributor!!

    No one on here is going to say it’s ok as you’re clearly inexperienced. Also how do you know it costs thousands?? Get a quote
  10. scov44UK

    scov44UK New Member

    I'll get a quote, the estimate is from a similar scenario I've found on the net.

    HSE guidelines are there for reason and based on risk.
  11. SimonG

    SimonG Trusted Plumber

    Correct. Don't need a licensed company for asbestos cement.

    However, you do need to be trained (says in the link you posted) and photos show that it has broken up.

    Can't understand how anybody would want to risk not just their own safety but also the safety of others.
  12. Riley

    Riley S. Mod Trusted Plumber GSR Top Contributor!!

    Usually for those that are competent and trained you are neither
    • Like Like x 1
  13. scov44UK

    scov44UK New Member

    ok thanks. I'll make some enquiries.

    I'll probably just cap the flues that are left in the wall / roof, unless told otherwise.
  14. Riley

    Riley S. Mod Trusted Plumber GSR Top Contributor!!

    Good choice buddy. We’re not nagging we all genuinely care about customer safety that’s all
  15. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    • Like Like x 1
Similar Threads - heating flue Forum Date
New Member: Underfloor Heating New Member Introductions Monday at 11:24 AM
Advice needed! Heat to radiators even with heating off Central Heating Forum Apr 16, 2019
Thread Status:
Not open for further replies.