Exterior waterproofing is one of the most comprehensive ways to protect your home’s foundation. Unlike interior drainage systems, which manage water after it enters, exterior waterproofing keeps water from ever collecting around your foundation. This helps prevent erosion and reduce hydrostatic pressure that can cause walls to crack or bow over time.

As an Oklahoma homeowner, you might have already have seen the signs of water intrusion or water-induced foundation stress. These include:
It is easy to spot the need for waterproofing when your basement is flooded. Other more subtle signs can exist, though. Have you noticed cracking or discoloration at the bottom of any drywall basement walls? Are you noticing a musty odor? Are you seeing floor discoloration where water might have seeped in before evaporating? Any of these can be signs of water problems.
Pierman offers quality exterior waterproofing systems for homes and businesses in Oklahoma. At the heart of any waterproofing system is drainage. You need to move water from where it shouldn't be to somewhere it won't cause any damage.
Usually that takes the form of a French drain system. With a French drain, we dig a trench and lay drain pipe graded to carry the water away from your foundation. The pipe is then covered with a material like gravel to facilitate water draining into the pipe.
Properly installed French drains reduce soil saturation and relieve pressure against your foundation walls—key steps in keeping your basement or crawl space dry.
A full exterior waterproofing system might not be right for every homeowner (which is why we also install interior drainage systems). It can, however, offer solutions for problems that interior waterproofing systems can't. These include:
In short, exterior waterproofing keeps the soil and structure stable—protecting your home from future damage, not just today’s water problems.
Pierman Foundation Repair Services has the experience and uses the best products for exterior waterproofing. Keep your investment safe from water damage. Call Pierman Foundation Repair Services today for a free exterior waterproofing quote. We serve much of Oklahoma, ranging from Muskogee to Oklahoma City and beyond.