Clogged Downspout: Common Problems and Solutions

clogged downspout

There are a few common downspout problems you should be aware of to protect your roof. Your downspouts are necessary if you want to make sure that rainwater drains off your roof and does not cause damage. 

Rainwater can start settling around your house’s perimeter and near the home’s foundation. This can result in severe damage to your home.

Here’s a guide to the most common downspout gutter problems and some solutions.


When there’s a problem with your downspouts, you are likely to see water overflowing from your gutter. 

If you have had a thunderstorm where you live, then it’s not uncommon for your gutter to overflow because of excessive, heavy rainfall. Check your gutters to see if they are clean and free up dirt and debris. If they are then there is no need to worry.

However, if they are clean and they’re still overflowing when there is a normal amount of rainfall, then there could be something wrong with your downspouts.

Leak in the Seams

If your downspouts become clogged, then they may cause pressure on the seams. This can cause the seams to start releasing water. 

The sealant in your downspouts can be dislodged by running water. When this happens, you can expect massive leakage to happen.

Low Runoff

Any water that leaks off the roof will go to your gutter systems before it drains out of the downspouts. You should be able to see when water is draining out. 

If you do not see any water coming through the downspout, it means the downspout is clogged. If there is just a small amount of water coming through the downspout, then there is a clog somewhere that needs to be dealt with.

How to Unclog

Sometimes unclogging a downspout is very easy. All you have to do is knock the side at the top of the downspout. Then, start tapping down the downspout. You might be able to loosen the clog this way.

Another method you can try is to seal off the top of the downspout with some towels. Flush out the inside of the downspout using a hose to see if the clog will loosen.

You can also use a handheld auger to see if you can force whatever is clogging the downspout out. If all of these methods fail, it is best to call in a professional to help you.

Keep Your Downspouts Working

When your downspouts become clogged, it can be very worrisome. Your downspouts are a very important part of the drainage system for your home. Water that comes from the roof can be very damaging. You want to make sure that it is channeled in the right direction. 

When your downspouts are not working, you run the risk of water settling around the perimeter of your home and seeping into the foundation. Broken downspouts can cause a lot of damage that may result in costly repairs. Checking your downspouts regularly and getting them inspected by a professional is one way to make sure that they are always in good shape. 

If you’re in the Greater Northwest, we’d love to serve you! Our professional roof repair and replacement specialists serve all of NW Oregon & SW Washington.

You can call and get in touch with Western Pacific Roofing today at (503) 659-7663 for all your downspout needs.



Contact Us