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Harrison County, Indiana
Basement waterproofing and crawl space services in Corydon, IN
Indiana's first state capital, with stone and brick homes from the early 1800s on cellars, Indian Creek through the middle of town, and cave country under everything. Corydon foundations are old, and the ground under them is karst.


Homes in Corydon
Two-century-old cellars, a creek that floods, and limestone full of caves
Corydon's historic district around the old capitol is full of limestone and brick buildings from the 1810s onward, sitting on cellars that have seeped for two hundred years. Indian Creek runs through town. Harrison County is cave country, and the ground here is karst: limestone full of sinkholes, caves and underground channels. Water moves through it fast and unpredictably, so a house can be dry for years and then get water when a channel underneath shifts or a downspout is rerouted.
Around Corydon we line and drain old stone cellars, repair cracks in later block and poured foundations that have become the way in, and encapsulate crawl spaces under the mid-century and newer homes along Highway 62 and 135. Sumps are sized for what karst ground can deliver, with a battery backup for the storms that take the power out.
Services in Corydon
Services for Corydon homes

Basement Waterproofing
Interior drainage, sealed walls and a sump that carry the water out after heavy rain.
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Foundation Crack Repair
Seal the crack from the inside or the outside, and fix the water that caused it.
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Sump Pump Installation and Replacement
Sealed basins, quality pumps, battery backup: the last line of defense, done right.
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Crawl Space Encapsulation
Seal the crawl space off from ground moisture for good: liner, sealed vents, dehumidifier.
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How we work
The same job, the same way, on every street in Corydon
A technician inspects the crawl space or basement with you, photographs what he finds and explains the cause. You get a written scope and price. Our own crew does the work, and it carries a lifetime transferable warranty that goes to the next owner. Rated 5.0 from 331 Google reviews.
- Photos and a plain explanation before you decide anything
- Written price, no surprises on the invoice
- IICRC certified, Google Verified, insured
- We beat any reputable company’s price on the same scope
Finished work
What the finished jobs look like
Finished Watertight jobs, from the crew’s own photos. Nothing staged, nothing stock.








3 months agoGreat company to work with! From the very beginning, their communication was excellent. They took the time to explain the different repair options, answered all of my questions, and helped me understand the best solution before I made a decision. I never…
a month agoThese guys are great. We just had a total encapsulation of our crawlspace. We had standing water underneath our house and it was causing problems. WaterTight Waterproofing came in and encapsulated everything. They put in a drain field and installed a…
3 months agoWatertight are the best. I searched around and had a few companies come give me quotes but Zach the owner made the decision easy. They are a great group of guys that just want to do a good job and make their customers happy. The delivered on both. They…
Questions
What Corydon homeowners ask
Still have a question? Call the office, Monday to Saturday, 9:00 AM to 5:00 PM.
Further reading
Do you come out to Corydon?
Yes. Corydon and the Harrison County area are inside our service area, with free estimates.
Can an 1800s stone cellar be made dry?
Dry enough to use, yes. We manage the water with a wall membrane and an interior drain to a sealed sump rather than trying to seal stone that was never sealed.
Water comes up through the floor after big rains. Is that a crack problem or a drainage problem?
Drainage. On karst ground water rises from below under pressure, and sealing a crack just sends it to the next one. A perimeter drain under the floor edge to a sump relieves the pressure.
Nearby
Counties we cover
Corydon is in Harrison County, Indiana. Our area pages cover towns in these eleven counties:
Kentucky
- Jefferson
- Oldham
- Bullitt
- Shelby
- Spencer
- Nelson
- Hardin
- Meade
Indiana
- Clark
- Floyd
- Harrison
Free estimate
Book a free inspection in Corydon
Tell us what you are seeing. A technician calls back during business hours, Monday to Saturday. Typical prices are in the cost guide.
- Photos and a plain explanation of the cause
- Written scope and price
- Lifetime transferable warranty on our work
- Our own crew, not a subcontractor


