DIY Doctor

Filling old flue opening

Postby verve » Thu May 01, 2008 9:03 am


I have had an old boiler removed and re-positioned. The old flue opening through a double skin external wall has been left (approx. 125mm diameter) and is open to the outside.

Can anyone tell me please what the best way is to fill the opening?

Many thanks
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Gorilla Glue heavy duty grab adhesive

Postby rosebery » Thu May 01, 2008 12:55 pm

Bricks, sand and cement. Internally plaster it over afterwards.

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Postby mdpmspitfire » Fri Nov 28, 2008 8:50 pm

brick up and plaster internally. either cut out ext brickwork and replace with new complete bricks or brick up slightly below surface, render over and mark into square with straight edge so looks tidy
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Postby TheDoctor5 » Mon Jan 26, 2009 9:40 am

Last year 64% of the questions asked in our forum were answered within our DIY project pages at The project pages are now separated alphabetically and your answers are accompanied by diagrams and the ability to see, and buy, the tools and/or required to complete your project. Use our search box to look for your answer and save a great deal of time and money!
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