Serving the Kansas City metro · Licensed & insured · Financing available 913-424-6328
Stop it outside

Exterior Foundation Waterproofing in Kansas City

The most permanent way to protect a foundation is to stop the water on the outside, before it ever touches the wall. We excavate, seal, and drain the exterior the right way.

Water against a foundation is the most expensive problem a home can have. Kansas City clay soils swell when wet and shrink when dry, and that constant pressure works water through cracks, cove joints, and porous block.

There is only one truly permanent fix, and it is done from the outside. We excavate down to the footing, prep and seal the foundation wall, add a drainage layer, and install a footing drain, so water is intercepted and carried away before it can ever reach the wall. This is exterior, positive-side waterproofing, the gold standard.

To be clear on scope: we specialize in waterproofing and drainage, not structural foundation repair. If your walls are bowing, cracking, or settling, that is a job for a structural engineer, and we will tell you straight and point you in the right direction.

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Exterior drainage routing water away from a home foundation in Kansas City
Done right

Our exterior waterproofing process

1. Excavate to the footing

We carefully dig down along the foundation to expose the wall all the way to the footing, right where the water is getting in.

2. Prep and repair the wall

We clean the wall and parge over cracks and imperfections so the membrane bonds to a sound, smooth surface.

3. Apply the waterproof membrane

A spray-applied waterproofing membrane seals the wall into a continuous, watertight barrier against the soil.

4. Install drainage board

A dimpled drainage board goes over the membrane, protecting it and giving water a clear path straight down to the drain.

5. Footing drain and gravel

A perforated footing drain set in clean gravel collects water at the base of the wall and carries it away from the house for good.

6. Backfill and re-grade

We backfill, re-grade so the ground sheds water away from the wall, and leave the site clean and restored.

Do you have this problem?

Signs you need exterior waterproofing

  • Water or dampness in the basement after heavy rain
  • A musty smell, efflorescence, or white chalky residue on the walls
  • Cracks in the foundation wall that weep or leak
  • Water pooling against the foundation outside
  • Downspouts dumping right at the house
  • You are finishing a basement and want to protect it first
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Exterior Foundation Waterproofing project in Kansas City
Where we work

Serving the Kansas City metro.

Drainage and waterproofing for the communities that expect it done right.

Good questions

Frequently asked.

Do you waterproof from the inside or the outside?
We do exterior, positive-side waterproofing, the most permanent method. We stop the water on the outside of the wall before it ever gets in, rather than managing it after it is already inside.
Is exterior waterproofing better than an interior system?
For a permanent fix, yes. Interior systems only manage water that has already entered; exterior waterproofing stops it at the source. It is more work up front, and worth it for a foundation you never have to think about again.
Do you do structural foundation repair?
No. We specialize in waterproofing and drainage. If your walls are bowing, cracking, or settling, that is structural work for an engineer, and we will tell you honestly and point you the right way.
Will you have to dig up my yard?
Exterior waterproofing does require excavating along the affected wall. We work as cleanly as possible, protect your property, and backfill, re-grade, and restore the area when we are done.
Get started

Ready to solve it for good?

Get a free, no-pressure assessment and a clear quote for your exterior foundation waterproofing project.

Call today913-424-6328
Licensed & insured · Free assessments · Financing available

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