Crawl Space Repair in Indianapolis, IN
Crawl space repair. Restore stability. Remove moisture.
No payment until you're satisfied.
A neglected crawl space can lead to sagging floors, mold, and serious structural damage. Our custom crawl space repair solutions target the root causes, like moisture, wood rot, and air leaks, so your home stays safe and solid from the ground up. From encapsulation to structural supports, we build long-term solutions backed by a satisfaction-first promise.
Typical price$3,000 – $8,000+most encapsulations · free inspection, written priceCrawl space repair isn't just throwing in a dehumidifier
It's a complete strategy to restore your home's foundation, air quality, and energy efficiency. At Michaelis Foundation Solutions, we combine encapsulation, vapor barriers, structural supports, and drainage improvements to fix the problem at its source.
A damaged crawl space can lead to buckling floors, musty smells, sky-high energy bills, and dangerous mold. Left untreated, it affects your home's safety and your family's health.
We handle everything from wet crawl spaces to wood rot and sagging floors. Our experts create custom solutions using proven systems, so your crawl space becomes a sealed, dry, and stable foundation for your entire home.
Our 3-step crawl space inspection
Every crawl space repair starts with a free, detailed inspection so you can understand exactly what's wrong and how we'll fix it, no guesswork, no pressure.
Initial conversation
We discuss your concerns, like sagging floors, odors, or standing water, and gather your home's history.
Free crawl space inspection
We perform a full visual inspection using moisture meters, lasers, and lights, documenting structural damage, humidity levels, and potential mold.
Custom repair plan
We walk you through every finding with photos and diagrams, then build a repair plan tailored to your space, needs, and budget.
French Drain System
Where a crawl space takes on standing water, sealing comes second and drainage comes first. We cut in perforated drain tile below grade, bed it in washed stone, and run it to a sealed sump so groundwater has somewhere to go. Encapsulating over active water traps the problem inside, so we move the water out before anything gets sealed.
- Interior drainage where water collects
- Sealed sump basin and pump, discharged away from the house
- Grading and downspout issues flagged in the report
Can you waterproof a crawl space?
Absolutely. We offer complete crawl space waterproofing, including drainage systems, vapor barriers, and sump pump solutions.
See the basement versionEncapsulation
Encapsulation means sealing the crawl space from outside moisture using vapor barriers across floors and walls. It helps control humidity, prevents mold, and stabilizes the environment. In practice that means clearing the space, correcting drainage, replacing failed supports, sealing the floor and walls with a heavy liner, closing the vents and penetrations, and setting a properly sized dehumidifier.
Done fully, the musty smell goes away, the floors firm up, HVAC works less, and the space becomes usable again.
Vapor Barrier
Bare dirt under a house evaporates moisture into the framing above it every single day. A vapor barrier stops that transfer at the ground. The difference between a barrier that works and one that doesn't is thickness, overlap and termination: a heavy reinforced liner, seams sealed, run up the walls and around the piers, mechanically fastened to hold firm against the dirt.
A vapor barrier alone helps, and it's also part of radon mitigation, but in a space with active water or high humidity it works best as one piece of a full encapsulation.
Heavy reinforced liner
Puncture-resistant material rated for crawl space service, heavier than construction-grade poly.
Sealed seams and terminations
Overlapped and taped, run up the walls and sealed around every pier and penetration.
Works with radon mitigation
The sealed soil surface is what lets a sub-membrane radon system actually pull.
Uneven Floor
Why is my floor sagging above the crawl space? This usually points to wood rot, humidity damage, or weakened joists and supports caused by moisture. Our inspection will identify exactly where the problem lies. We shoot elevations with a laser, check every support, and map where the floor has dropped and by how much.
The repair restores real support at the source: failed posts and piers replaced, adjustable steel jacks and supplemental beams set on proper footings, damaged joists sistered or replaced, then a controlled lift back toward level. Yes, uneven floors can be fixed. We stabilize the structure and level the flooring.
Dehumidifier
Should I install a dehumidifier in my crawl space? In most cases, yes. Dehumidifiers are essential for maintaining healthy humidity levels, especially in encapsulated crawl spaces. Sealing removes most of the moisture load, but Indiana summers still push humidity up, and a properly sized unit is what holds the space in range through August and after heavy rain.
We size the unit to the volume of your space, hard-plumb the condensate line so there's no bucket to empty, and set a humidistat so it runs on measured humidity levels. It appears as its own line item on your quote, so it is always clear up front.
What controlled humidity gets you
- Mold can't establish or spread
- Wood stops absorbing moisture and rotting
- Musty odor stops migrating upstairs
- HVAC stops fighting humid air under the floor
Wood Rot
Moisture can rot floor joists, shift supports, and damage your foundation. Proper repair stops damage at the source. Rot doesn't reverse (the wood has lost strength permanently), so the work is replacement and reinforcement: rim joists, band boards, joist ends, sill plates and posts, whatever the moisture reached.
Then we cut off the water and humidity that caused it. Repairing rot in a space that stays wet just resets the clock, which is why rot repair and encapsulation almost always appear on the same quote.
Is mold in a crawl space dangerous?
Yes, crawl space mold can circulate through your home's HVAC system and impact your family's health. Removing it safely and fixing the moisture source is key.
Mold remediationWhy choose crawl space repair
Protect your home's structure
Moisture can rot floor joists, shift supports, and damage your foundation. Proper repair stops damage at the source.
Improve indoor air quality
Sealing off mold, dust, and allergens below your home means cleaner air inside it.
Prevent pest infestation
Dry, sealed crawl spaces deter rodents, insects, and termites.
Lower energy bills
Crawl spaces affect HVAC efficiency. Repairing and insulating them can reduce heat loss and improve system performance.
Create usable, healthy space
No more musty smells or wasted space. Your crawl space becomes clean, dry, and usable again.
Crawl Space Repair near you
Bartholomew County
Brown County
Greene County
Henry County
Howard County
Jackson County
Jennings County
Lawrence County
Montgomery County
Morgan County
Orange County
Shelby County
Tippecanoe County
Tipton County
Vermillion County
Vigo County
Wayne County
Common questions
How much does crawl space encapsulation cost in Indianapolis?
Most of our crawl space encapsulations around Indianapolis run $3,000 to $8,000, and more for a large space or one that needs drainage or repairs first. National cost guides put the work at about $3 to $10 a square foot, so the size of the space, the liner, how many vents and openings need sealing, and whether a drain and sump go in set the price. The dehumidifier is its own line on the quote.
How much does it cost to fix sagging floors over a crawl space?
Most of our floor stabilization jobs run $3,000 to $10,000, and more when joists, sill plates or a main beam have rotted and need replacing. The number of new supports, how much framing is damaged and how much room there is to work set the price; a few steel supports under one room is a very different job from rebuilding a rotted beam line.
Should crawl space vents be open or closed?
In an encapsulated crawl space, closed. Vents were meant to dry the space, but in an Indiana summer they let in warm, humid air that condenses on the cooler ground, ducts and framing, which is how crawl spaces get damp and musty. Once the floor and walls are sealed with a liner, the vents are closed and a dehumidifier keeps the air dry.
How long does crawl space encapsulation take?
Most take a few days, longer when drainage, a sump or structural repairs have to come first. The space is cleared, the water problem is handled, then the liner goes down and up the walls, the seams are sealed, the vents are closed, and the dehumidifier is set and plumbed to drain on its own.
What humidity should a crawl space stay at?
Below 60 percent relative humidity, and ideally between 30 and 50 percent, which is the range the EPA recommends to keep mold from growing. A properly sized dehumidifier with a humidistat holds an encapsulated space there through an Indiana summer, and an inexpensive humidity meter from a hardware store will tell you where yours is now.
Does crawl space encapsulation help with radon?
It helps, and it sets up the fix. A sealed liner over the soil is what lets a sub-membrane radon system pull gas from under it and vent it above the roof. Encapsulation on its own isn’t a radon system, so test before and after.
Why is my floor sagging above the crawl space?
This usually points to wood rot, humidity damage, or weakened joists and supports caused by moisture. Our inspection will identify exactly where the problem lies.
What is crawl space encapsulation?
Encapsulation means sealing the crawl space from outside moisture using vapor barriers across floors and walls. It helps control humidity, prevents mold, and stabilizes the environment.
Is mold in a crawl space dangerous?
Yes, crawl space mold can circulate through your home's HVAC system and impact your family's health. Removing it safely and fixing the moisture source is key.
Should I install a dehumidifier in my crawl space?
In most cases, yes. Dehumidifiers are essential for maintaining healthy humidity levels, especially in encapsulated crawl spaces.
Can you waterproof a crawl space?
Absolutely. We offer complete crawl space waterproofing, including drainage systems, vapor barriers, and sump pump solutions.
Typical prices for every service are in the Indianapolis cost guide, and general questions are on the FAQ page.