Can I repair a basement window myself?

I think so, of course. It all depends on what condition your basement is in. Sometimes it's much easier not to be smart, but to invite repair and waterproofing experts to make everything work out in the best possible way. I suggest you take a look at exterior waterproofing services . This is exactly the case when it is better to trust the specialists once than to perform some complex and not entirely clear work for you yourself. This is my personal opinion.