Crawl space waterproofing
Crawl space waterproofing in Louisville, KY
Standing water under the house is the problem that makes every other problem worse. We install drainage and a sump under the crawl space so water leaves the way it should, then seal the space.
Signs you need it
Water under the house
Puddles or mud after rain
Louisville sits on clay over limestone. Water that cannot soak in collects in the lowest place, which is your crawl space.
Water at the foundation wall
Roof water and surface water pushed against the footing finds its way inside.
Humidity that a dehumidifier cannot keep up with
If there is a pond under the liner, no dehumidifier wins.
Mold, rot and rust on ductwork
Long-term standing water rots wood, feeds mold and corrodes metal.
What we do
Drain it first. Then seal it.
A crawl space drainage system works like a basement system without the concrete. We trench the perimeter, lay perforated drain tile in washed gravel, and route it to a sealed sump basin at the low point. A quality pump pushes the water outside and well away from the foundation. If the space floods from a specific wall, we add a channel there. Then the space is lined or encapsulated on top of dry ground.
Outside, we look at the grading, the downspouts and the yard drainage, because a lot of crawl space water started as roof water dropped next to the house.
- Perimeter drain tile and washed gravel, trenched by hand
- Sealed sump basin, quality pump, discharge run away from the house
- Downspout and yard drainage corrected at the same time
- Vapor barrier or full encapsulation over the dry space
See the work
A crawl space floor, dug out along the walls
Footage from a Watertight job. Short and silent, so it plays anywhere.
How the job goes
One to three days plus the liner
Find the water
Where it enters, where it sits, where the low point is. Photos and measurements.
Trench and drain
The perimeter is trenched, drain tile and gravel go in, everything slopes to the sump.
Sump and discharge
Sealed basin, pump, check valve and a discharge line run well away from the foundation.
Seal the space
With the ground dry, the liner or encapsulation goes down and the dehumidifier goes in.
Before and after
A crawl space drain trench, dug then graveled
Before and after from the same job.
On the job
From the crew's own photos
Real Watertight jobs. Nothing staged, nothing stock.
What it costs
Price your crawl space waterproofing in a minute
A few questions give a planning range from the same calculator as the cost guide. See every line, or book a free inspection with your numbers attached.
Why Watertight
The step that gets skipped
Sealing a liner over standing water creates a pond with a lid, and mold loves it. When there is water, we drain it first, and the drainage goes in as part of the same job, by the same crew.
- Hand-trenched drainage by our own crew
- Sump pumps with battery backup available
- Downspouts and grading corrected outside
4 weeks agoThis company Water Tight did a great job, they removed all of my insulation that was moisture soaked. Installed a new crawl space dehumidifier and treated for any existing mold problems. They added some steel shims to floor supports. They were very…
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 agoZach’s crew of “good old country boys,” as he described them, waterproofed our basement December 1st and 3rd because we had a big-for-Kentucky snow, and the guys couldn’t make it to Shelbyville on the 2nd. From the website, we could tell they mainly…
Questions
Crawl space waterproofing: what people ask
Still have a question? Call the office, Monday to Saturday, 9:00 AM to 5:00 PM.
How is crawl space waterproofing different from encapsulation?
Waterproofing moves liquid water out: drainage and a sump. Encapsulation controls moisture and air: liner and dehumidifier. A wet crawl space needs both, in that order.
Where does the water go?
Into a sealed sump basin and out through a discharge line to a point well away from the foundation, often into a buried drain line with a pop-up emitter in the yard.
Can I just add a dehumidifier?
Not if there is standing water. A dehumidifier handles humidity, not puddles. Drain first.
What does it cost?
Crawl space drainage is priced by the perimeter and the access, and the written price covers the whole job including the liner. Every job is priced in writing after a free inspection, and the cost guide has typical Louisville ranges and a calculator for planning.
Projects
Related jobs, before and after
Each pair is one Watertight job, photographed before and after. Nothing staged, nothing stock.
Torn plastic replaced with a sealed liner
Torn, bunched plastic over bare dirt, replaced with one continuous liner turned up the wall.
Read the story
A cluttered crawl space, cleared and lined
A flexible duct lying on old sheeting and debris, then lifted clear over a clean liner across the floor.
Read the story
Crawl space encapsulation, start to finish
Bare dirt and rubble under the joists, now covered by a white liner from the floor up the block wall.
Read the storyWhere we do this work
Crawl space waterproofing across Louisville and Kentuckiana
Every area has its own page on the houses and ground in that part of town.
Free estimate
Crawl space waterproofing: get a written price
Tell us what you are seeing. A technician calls back during business hours and books a time to look. No cost, no obligation.
- Photos and a plain explanation of the cause
- Written scope and price
- Our own crew, not a subcontractor
- We beat any reputable company's price on the same scope
