Crushed Stone Crawl Space Encapsulation

Protect the structure and improve indoor air quality by controlling moisture under the building. We install a stone base where needed and seal the crawl space with a polyethylene system that blocks vapor and supports long-term performance.

Moisture Control
Mold Reduction
Energy Savings

Do not let hidden moisture damage your building

Standing moisture in a crawl space leads to mold, wood decay, odors, pest pressure, and increased energy costs. Left alone, these issues can turn into structural repairs, indoor air complaints, and budget surprises. 

A patchwork fix rarely holds. Thin plastic, missed seams, or uneven floors let vapor bypass the barrier and collect again. You need a solution that levels the base, creates a continuous seal on floors and walls, and manages humidity so problems do not return.

Why more owners choose professional encapsulation

Lower risk

A sealed system reduces conditions that allow mold and pests to thrive.

Better efficiency

Proper vapor control and dehumidification support lower utility costs.

Long-term value

Protection that helps preserve structure and livability over time.

What exactly is crawl space encapsulation

Crawl space encapsulation is the installation of a continuous polyethylene vapor barrier on the floor and walls of the crawl space, with seams carefully overlapped and sealed around vents, pipes, and piers. Where conditions require it, we place a crushed stone base to level depressions before sealing. A dehumidifier keeps relative humidity in the safe range.

We understand the demands of occupied buildings and tight spaces

We work in crawl spaces of all sizes for commercial owners, homeowners, and developers. Our crews bring the right materials and equipment for confined access, including long, pliable blower hoses that help us place a stone base evenly where the floor is irregular. The goal is a neat, complete seal with minimal disruption to people using the building.

DIY sealing vs partnering with Superior

Encapsulation that looks complete can still fail if the base is uneven, seams are not sealed, or humidity is not controlled. That leads to mold concerns, callbacks, and expensive corrections. Professional work includes surface prep, correct materials, complete sealing, and humidity management so the outcome lasts. The short-term savings of a do-it-yourself approach do not outweigh the risk of doing it twice.

"Encapsulation supports many property types"

Commercial buildings. Reduce moisture risk, maintain operations, and protect finishes and equipment.
Residential homes. Improve indoor air quality and protect the structure for families living above.
New construction. Deliver a marketable, protected crawl space that sets future owners up for success.

What are the steps to encapsulate a crawl space

1. Clean and repair
Remove debris and address any structural or water issues so the surface is safe and ready.
2. Measure the area
Calculate floor and wall coverage so materials fully cover the space without gaps.
3. Apply a stone base
Where the floor is uneven, we place crushed stone to create a smooth, stable base for the barrier and to aid drainage. Our Express Blower hoses help in tight spaces.
4. Seal the space
Overlap and seal polyethylene sheets on floors and walls, wrapping around vents, pipes, and piers for a continuous barrier.
5. Regulate humidity
Install a dehumidifier and set it to maintain safe levels so moisture does not return.

A simple 3-step path to a dry, healthy crawl space

Request an Estimate

Share site conditions, size, access, and goals. We review moisture history and any prior work to price accurately.

Get a Customized Plan

We confirm scope, material specs, need for a stone base, and dehumidification. You receive clear pricing and a schedule that fits your project.

Seal and Protect

Our crew levels where needed, installs the barrier, and sets humidity control. You get documentation and simple care guidance to keep conditions stable.

What Our Clients Saying about our Service?

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Mel Wells
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Very Professional job these guys did laying down the new mulch in two different areas. Id hire them back in a heart beat
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Dustin Flaska
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I've been installing landscapes and hydroseeding my entire adult life. We hired this company for a very large and complicated project to blow compost. We had such a great experience we used them to hydromulch the site when we finished native seeding. They moved their schedule twice to meet conditions and were happy to do so. They were very professional, the crew was very polite, they went way above and beyond to make sure it was easy for us and our client. I cant say enough good about the people, the company, and the work. I look forward to getting to use them on another project in the future.
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Jon Geskus
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This company is amazing. They came out on Monday and did and amazing job. They prepared the lawn, removing a lot of rocks. They did an amazing job for erosion control. They were professional and communicated from the beginning. Tuesday, Buckets of rain. All the prep work, hydroseed washed away. Were the erosion mats were laid did exactly what it was supposed to do but no company can prepare for the amount of water that God released. Wednesday, I called and talked to Bill. Whom I had been in contact with from the beginning. Bill stopped by house, told me he had a truck in the area. A crew was out there fixing the yard and re-hydroseeded my yard without extra cost. I could not have been happier of their professionalism and customer service. I would highly recommend Superior if your in need of hydroseeding.
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Immanuel Singh profile picture
Immanuel Singh
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We have had a great experience with hiring Superior Groundcover to complete our hydroseeding for our home. From the moment we spoke with Bill, we knew we could trust the work to be done the right way. Bill educated us on the process and was always available to answer any questions we had. Also, his team was quick, efficient and professional. We would highly recommend working with this company for your hydroseeding project.
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Trevor
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Can't recommend these guys enough. Called Terry on a short notice to try to get mulch in on a project that meant a lot to me. Even in their busiest time of year he managed to make it happen for me within the timeline I needed it. His guys were knowledgeable and very polite. They knew exactly how much mulch I was going to need to finish the project and got it done. They also blew the area spotless and even managed to clean up some of my mess in the process. All around 10/10 company and I wouldn't want to work with anyone else!
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Zach Kammeraad
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We are so thankful that we worked with Super Groundcover and their team. They did an excellent job with hydroseeding our yard. Seriously can’t recommend them enough, you won’t be disappointed.
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Sarah
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Superior Groundcover came out and blew sand lakeside for us today and did an excellent job! They were prompt on time, efficient, worked great as a team, friendly and did a great clean up! I would highly recommend them to anyone! Their service was the best and much appreciated!
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Tim Allard
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Quality workmanship. The guys were good listeners, applied 17 yards of bark mulch today just as I specified, and did an amazing job at cleanup. Very impressive and much appreciated!

Crawl space encapsulation in Michigan

We provide residential and commercial crawl space encapsulation across Michigan, including Detroit, Grand Haven, and Grand Rapids. Ask about other cities and statewide availability.

More About Crushed Stone Crawl Space Encapsulation

Crawl Space Encapsulation FAQs

No. Encapsulation controls vapor and humidity. Proper drainage is still required to handle liquid water before the area is sealed.

A basic vapor barrier leaves vents open and does not manage humidity. Encapsulation wraps floors and walls and is paired with a dehumidifier for more complete protection.

Yes. The sealed system restricts access and protects structural elements from insects and critters.

Yes. It helps protect the structure and indoor air quality, which buyers and tenants appreciate. Lower energy bills are a common benefit.

Condition and size of the crawl space are the main drivers. If repairs or extensive leveling are required before sealing, cost increases.

Yes. Our equipment and long, flexible hoses allow careful placement and sealing in confined areas.

When needed, yes. We place crushed stone to create an even, stable surface before installing the barrier.

Yes. We encapsulate crawl spaces for commercial buildings, homes, and new construction.

Drier crawl spaces, healthier buildings, fewer surprises

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