Removing a dryer vent

[TJMA]

I am removing a dryer vent that is not used anymore. (moved vent to another

spot). Removing the vent leaves a 4 inch diameter hole in the poured concrete

wall. What would be the correct way to fill this hole in? Thankyou for your help.

 

[The Cobbler]

back up the hole with a pc of plywood or something, fill with mortar mix. probably need a few fills to get it full and not sag

 

[Kaizen]

Hydraulic cement will not shrink and should be able to be packed in against the backer


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[ghnl]

Is there any chance someone in the future may want the dryer vent there?

 

[Kaizen]

Is there any chance someone in the future may want the dryer vent there?

Good point. Maybe foam in the middle and cement outside and in so it can be knocked out easier


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[harley jim]

Cut a styrofoam circle and tap it into the hole about 1/2" below flush, use hydraulic cement to fill it flush as stated it wont shrink and if mixed stiff it will not sag but the stuff dries fast(like five minutes). If you use a sponge and a brick jointer you can make the patch match the block if you need it to look good.
I fixed an old chimney hole in my block basement and after paint you could not see where the patch was.

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[nadogail]

A metal plate with spring legs will plug into the hole. It can be backed up with foam to enable someone else to reuse the hole in the future.

 

[Tduby]