How do I waterproof my basement?

A Step-By-Step Guide to Basement Waterproofing Check for Cracks. With the excavation completed, clean the wall and check for any cracks or areas causing the water to seep in. Apply Sealant. Apply a coat of cement based sealant to all exterior walls. Apply a Membrane. Install a waterproofing membrane. Install Drainage Mat. Complete the French Drain. What to Avoid Doing. Click to see full answer. Regarding this, can you waterproof basement from inside?If the foil has condensation on the inside surface (next to the wall), it may be the soil around your house is naturally damp from a high water table or poor soil drainage. In that case, waterproofing your basement walls can be useful. You can waterproof just your interior walls, which may solve the problem.Also, how can I waterproof my basement myself? The Dos and Don’ts of Waterproofing Basement Walls DO determine the source of the water. DON’T make wall repairs with standing water in the basement. DO fill cracks with hydraulic cement. DON’T forget to address window well leaks. DO apply a masonry waterproofing product to bare interior basement walls. Similarly, you may ask, how much does it cost to waterproof your basement? The average cost to waterproof a basement is $1,920 to $6,320, or between $3 and $9 per square foot for materials and labor. Interior basement repairs that don’t require excavation cost around $500 to $1,500, whereas large extensive repairs with drainage and foundation issues run $10,000 or more.What is the best basement waterproofing system?The most effective basement waterproofing method is called interior water drainage. A drainage system can help avoid water buildup in your basement, moving the water from the footers of the house foundation and out below the basement floor.