From cracked foundation walls to chronic dampness, we stop water before it damages your home. Local, licensed, and dedicated to giving you a dry, usable basement — for good.
Homeowners across St. Louis trust Mayim
Whether it's a one-time repair or a full waterproofing system, we design solutions that keep your basement dry year after year.
Sub-slab perimeter channels collect groundwater and route it to a sump pump — silently, efficiently, and out of your living space.
Heavy-duty pumps with battery backup keep water moving even during power outages — because storms don't wait for generators.
Cracked walls, bowing, or settling? We stabilize and repair foundation issues so water can't sneak through new gaps.
French drains, exterior membrane, and proper grading — we redirect water at the source before it ever touches your foundation.
Vapor barriers, dehumidifiers, and sealed vents transform a musty crawl space into a clean, dry buffer under your home.
Not sure if you have a problem? We'll inspect your basement, explain exactly what we find, and give you an honest assessment — no pressure.
15+
Years Serving
St. Louis
Mayim Basement Waterproofing was founded on a simple idea: homeowners in St. Louis deserve a straightforward answer when water shows up in their basement. Too many companies upsell or patch symptoms. We fix the cause.
Based right here in St. Louis at 4019 Papin St, we've spent over a decade helping homeowners across the metro turn damp, unusable basements into dry, functional space. Every project gets our full attention — no subcontractor roulette, no vague timelines.
No surprises, no hidden fees. Just a clear process from first call to final walkthrough.
Reach out by phone or fill out our contact form. We'll schedule a time that works for you.
We assess the water issue, explain what's causing it, and show you exactly what we'd do — in plain language.
You get a clear, written estimate. No pressure, no upsell. When you're ready, we schedule the work.
We complete the work, walk you through the results, and stand behind it with a solid warranty.
"We had water seeping through our foundation every spring. Mayim diagnosed the problem fast and installed an interior drainage system that's worked flawlessly ever since. Professional from start to finish."
Homeowner
St. Louis, MO
"I was getting quotes from three companies and Mayim was the only one who explained exactly what was happening with my crawl space and why. No scare tactics, just facts. Best experience I've had with a contractor."
Homeowner
St. Louis, MO
"After the sump pump installation, our basement stayed completely dry through the heaviest rains this year. The team was clean, on time, and respectful of our home. Highly recommend Mayim to anyone in the area."
Homeowner
St. Louis, MO
A dry basement isn't a luxury — it's the foundation your whole home deserves. Let's make it happen.
Whether you've got active water or just want peace of mind, we're here. Fill out the form or reach out directly — we respond fast.
