Rather than hire a professional a diy cleaning job saves money.
Clean dryer duct in wall.
The first thing you have to do is locate where the duct begins and ends.
If you can detach the length of duct where it meets the wall do so.
If your dryer used a soft foil style vent to link to the wall duct get rid of it.
Remove and vacuum the hose.
The tools and supplies you need to clean a dryer vent duct include a vacuum with a long hose attachment dryer vent brush kit screwdrivers and ul listed metal foil duct tape.
Reattach the hose and clean the exterior vent.
These hoses are a known fire risk.
Now you are going to pull your dryer away from the wall enough to get in there behind it.
Brush kits come with a long bristle brush to clean the lint filter area as well as a round bristled brush that can clean out a 4 inch round rigid dryer duct the kind you should have for all concealed portions of your duct run.
I personally replaced the original semi rigid venting with a pair of 90 degree.
In the photo above the back of the dryer is on the right and the wall bent on the left.
Use the hose attachment of a vacuum cleaner or shop vac to clean in and around the hole at the back of the dryer.
Detach the dryer vent hose from the wall.
Your goal is to attach one straight side of the tee to the wall or floor vent and one to the dryer outlet.
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