Stop water at the source.
Exterior Foundation Waterproofing in Des Moines
The most effective way to protect your foundation is from the outside. We stop water before it can reach your foundation walls.
What homeowners say
Foundations That Stay Dry From the Outside In
Why this matters
Outside Water Finds Every Weakness in Your Wall
When water reaches your foundation walls from the outside, it can cause cracks, leaks, mold, and structural issues. Interior fixes alone often don't address the source. Exterior waterproofing stops water before it gets in.
What we do
Exterior Waterproofing That Outlasts Iowa Seasons
We carefully excavate around your foundation, clean and prepare the walls, apply high-quality waterproofing membranes and sealants, and install drainage systems to redirect water away. Exterior waterproofing provides superior protection by stopping water at the source, protecting walls from water pressure, and extending the life of your foundation.
The wall has to stand, not just shed water
Carbon Fiber Braces for What We Find Below Grade
Exterior excavation reveals what membranes hide. If the wall is bowing or cracking faster than a membrane alone can protect, we add carbon fiber bracing on the interior to work with the new exterior seal - so drainage outside and reinforcement inside stay on the same plan. Details on foundation repair.
When carbon is not enough
Steel Braces When the Wall Needs Rigid Support
Heavy clay, tall walls, or stair-step cracks sometimes need adjustable steel braces that can be snugged as the wall responds. We sequence exterior waterproofing and interior steel so neither crew undoes the other’s work.
If the wall is too far gone
Replacement When the Section Is Too Far Gone
Once we have a wall exposed, we do not bury a problem. If foundation replacement is the honest recommendation, we price it with the excavation already in view so you are not paying twice for mobilization. Read more on foundation repair and replacement.
Simple process, clear results
Three Steps to an Exterior Fix You Can Trust
From inspection to finished job, we keep things straightforward.
We inspect and recommend
We assess your foundation and site to determine if exterior waterproofing is the right solution. We explain the process and what to expect.
You get a clear plan and price
We give you a written estimate and a straightforward plan. No hidden fees. You decide when, or if, you want to move forward.
Protected foundation and peace of mind
We excavate, prepare walls, apply waterproofing materials, install drainage, and backfill. Our work is backed by a warranty.
Serving central Iowa
Areas We Serve in Greater Des Moines
Dry Duck Basements is located in Des Moines. We service exterior foundation waterproofing throughout Iowa, within about 60 miles of Des Moines. If you're in one of these areas, we can help:
Risks of waiting or cutting corners
Exposed Walls Get Worse Every Freeze Cycle
Skipping waterproofing or hiring someone who cuts corners can lead to:
- Recurring leaks and water damage that get worse over time
- Mold and mildew that affect your family's health and air quality
- Foundation cracks and structural issues that cost far more to fix later
- Wasted money on band-aid fixes or contractors who don't stand behind their work
Related services
Exterior Work Often Pairs With Interior Fixes
Whether you need interior waterproofing, basement sealing, or leak repair, we have a clear plan and a fair price. Not sure which service fits your situation? Get a free inspection and we'll recommend the right approach.
Foundation Repair
Brace or replace walls we expose when exterior work uncovers structural issues.
Learn more →
Basement Waterproofing
Complete solutions so water stays out and your basement stays dry.
Learn more →
Common questions
What to Know Before We Start Excavating
What is exterior foundation waterproofing?
How long does exterior waterproofing take?
Price Your Exterior Waterproofing Up Front
Get a free estimate for exterior foundation waterproofing.
Get Your Free Estimate