My basement is seeping rain water... help!

The research I did, said the water proofing does best if applied to the exterior of the walls. Not a lot of help with existing basement. I don’t know how well drylock paint does. I do know that prevention measures can be taken. It’s a lot of little things...if you have gutters and down spouts....put extenders on the down spouts so the water is directed 10 feet or so from the foundation. Now, the foundation ..bank earth around it. Have the dirt sloped to a 45 degree angle. Most of the time, that’s all that needs done. The next step would be to dig a big mud puddle to collect water before it gets to the basement.

I would talk to a basement specialist because rain water can be hard to stop. People use products like Dryloc to hold back water.

I don't think rubberized paint works that well when painted on the inside of the walls. I think you have to check the grading around your foundation where the water is coming in. Also, make sure the drainpipes coming from the gutters are aimed away from the foundation. They can also be extended with attachments inexpensively. If there is no crack in the foundation, the soil needs grading so the soil angles downhill as it goes away from the foundation. If it is graded properly you will have to consult a landscaping contractor or a specialist in waterproofing homes. Nowadays, new foundations are coated with a waterproofer before soil is spread up to the foundation. Sometimes drainage gravel is put under the top soil and sometimes drainage pipes are placed strategically to get any rainwater directed in the correct direction. It is a big project. I think if your problem just started, you either have altered the level of the soil near the foundation if planting there or the gutter drain pipe needs to be extended further away from the house. Those are simple and inexpensive fixes. A crack in the foundation can be fixed. Some companies waranty the repairs for a lifetime. Good luck.