Replacing dryer vent that runs in wall, up through attic, and out the roof...

Just moved into our new house and realized that the dryer vent was clogged after getting a new washer and dryer. Had it professionally cleaned today and they said that the vent that is inside the wall is made out of a white vinyl material and not up to code. I'd like to replace it myself or have it replaced, but am wondering how hard of a job it would be. The vent begins directly behind the dryer and enters the wall, from there it runs straight up into the attic and out the top of the roof. It's a one story house so isn't a tremendously large length of tubing. Unfortunately, other than when it's in the attic, it's inside the wall the entire time. Would replacing it require me to tear out all the drywall? Any insight would be greatly appreciated.

 

That sounds like a lot of vertical run - any way you can route it somewhere else?

Might be able to put pieces of solid vent together and work them downward from the attic, otherwise I think you'd have to remove the drywall

 

The wall to the left of the dryer is shared with the garage. I could start a new vent through that wall, then run along the garage wall to an exterior wall and put it through there and cap it off. My concern there is cutting all those new holes, seems way out of my league. I'd also have the old vent to take care of at that point. If I wanted to have something like this done, how would I go about finding someone qualified to do it. I've never heard of a dryer vent installation company.

 

We can "qualify" you to do the job. After all it is a diy forum. To install the vent (solid, not flexible) you may have to purchase a 4 1/4" hole drill attachment for your drill. This will allow you to cut smooth holes where you want them. The piping comes in different lengths, but you can cut them with shears rather easily. Seal and tape the joints and you're done. Let us know if we can help as you go along.
I would prefer your method as opposed to having a hole in an otherwise perfectly non-leaking roof. Makes no sense to me, mainly for the problem you have already encountered.