Depends on the type of feeder if it is a bottle type or screw on with sizable flat base it should never leak if it does and you can get your money do it , get another or another kind. The cheap 97cent ones you get from walmart are known to drip a little. On those [and I have one] fill it full to running over , screw on cap and it will drip at first and then quit later on. You need to fill it full to form a vacuum on those small ones.

well, this one is a cheap one, but I bought it at the Family Dollar Store instead of Walmart LOL. It's small, shaped like a strawberry and it is a screw on with a flat base. Only has 2 flowers. I love this feeder...it is just the right size to attach to my living room picture window. It isn't filled to full capacity yet. Will wait until hopefully I have many more hummers. Thanks hummersteve:)

donnas--- I have the same feeder on my pc window , strawberry with a green base . doesnt leak. Its one of the first ones I ever had and the hummer are used to it. I used to have two feeders on this window but recently the other one broke , the plastic broke not the bottle part.

yep, same feeder:) Do you always fill yours full?

Donna S

If its leaking at the seams try some teflon tape (plumper tape) That will fix the problem or as others said, return it for another.