Crawl Space Encapsulation in Columbus, Ohio

Seal out moisture, soil gases, and radon. Protect your home, your air, and your family from what is hiding beneath the floor.

The air inside your home is directly connected to the space beneath it. Professionally installed crawl space encapsulation creates a protective barrier that helps keep moisture, radon, and contaminants out of the air you breathe.

Our state-licensed Columbus team has helped hundreds of Ohio homeowners create healthier homes, backed by the environmental expertise of Protect Environmental.

Overview

Crawl space encapsulation is the process of fully sealing a home’s crawl space with a heavy-duty vapor barrier to block moisture, soil gases, and radon from entering the living space above. A properly installed system improves indoor air quality, reduces humidity, and helps protect the home’s structure and energy efficiency.

Why Crawl Spaces Are a
Hidden Risk

In many Central Ohio homes, the crawl space is the most overlooked part of the house. Open vents, exposed soil, and unsealed seams allow moisture and soil gases to move freely into the air above.

Because air from the crawl space can rise into the living areas, these conditions directly affect the air your family breathes every day.

Encapsulation creates a sealed, controlled environment beneath your home, blocking the pathways that let radon, moisture, and other contaminants enter.

Signs Your Crawl Space May Need Encapsulation

If any of these sound familiar, your crawl space may be affecting your home’s air, comfort, and structure.

Musty odors inside the home
Damp or humid crawl space conditions
Standing water or visible moisture
Mold or mildew growth
Cold floors during winter months
Pest or insect activity
Elevated radon levels detected during testing
Insulation that appears wet, sagging, or damaged

Benefits of Crawl Space Encapsulation

A sealed crawl space delivers measurable improvements throughout the home.

01

Improved indoor air quality

Sealing the crawl space blocks soil gases, including radon, from entering the air your family breathes.

02

Moisture and humidity control

Encapsulation reduces excess moisture that contributes to mold growth and structural damage.

03

Greater home comfort

A sealed crawl space helps stabilize temperatures, reducing cold floors and drafts throughout the home.

04

Better energy efficiency

Encapsulated crawl spaces reduce energy loss and help heating and cooling systems run more efficiently.

Crawl Space Encapsulation and Radon Control

In many homes, radon and other soil gases enter through the crawl space and rise into the living areas above. Encapsulation creates an essential barrier that helps limit these entry pathways.

When needed, crawl space encapsulation can be integrated with a professional radon mitigation system to deliver a more comprehensive solution.

Our team provides both services and is backed by the national environmental specialists at Protect Environmental, ensuring your home receives a solution designed to reduce radon exposure and improve indoor air quality.

What Our Customers Say

Team did a great job on my house. Radon levels are very low now. The technicians were kind and experienced.
Response from the owner:Thank you for the 5 Stars! We truly appreciate your business and positive feedback!
Very professional, willing to work with and will definitely recommend 10/10
Response from the owner:Thank you for the positive review and 5 stars! We're glad you're pleased with our team and services!
Like many people, I was reminded of radon as an issue by a recent series in the Columbus Dispatch. Our 100 year old home has a finished basement. Protect Environmental set up monitoring equipment and determined that we had levels of around 10 pCi/L, something confirmed by a consumer grade monitor I purchased independently. Shad Evans of Protect Environmental helped determine where to install a mitigation system and exhaust pipe, something complicated by our house’s window, dormer and exterior utilities placement. Lead technician Larry and his colleague explained what they were doing, were extremely neat, and installed the system in a few hours time. The exhaust pipe placement in particular was thoughtfully done. The result… within 24 hours, the radon level was below 1.0 pCi/L and has remained there since installation. Excellent company.
Response from the owner:Mr. Wheeler - Thank you for taking the time to leave the 5 stars and positive feedback. We're happy you're pleased with our team and services. We're passionate about radon mitigation and are glad we could help create a healthier home for you & your family. And we truly appreciate your business! ~The PE Team / Radon Be Gone
The company did an excellent job of installing and explaining the radon mitigation system. They were able to get the radon levels from a starting point of 27 to under 1 after the system was installed. I have already recommended them to a neighbor.
Response from the owner:Thank you for taking the time to leave the positive feedback about our team and services. We're so glad you're pleased and that the radon system is creating a healthier home for you & your family!! And thank you for telling your neighbor about us - we'll take good care of them as well! =)
Great communication, expert knowledge, easy explanation, easy to schedule, professional, very satisfied with update to my 14 year old system.
Response from the owner:Thank you for the positive feedback and 5 stars! We truly appreciate it and are glad you're pleased with our services and team!
Great service. Got me the model of my old fan from a previous business's records.
Response from the owner:Thanks for the 5-Stars! Let us know if you ever need anything else! PE
Setting up the appointment was easy and able to be done fairly quickly. The technicians for the pre-install, full installation, and follow-up visits were very knowledgeable, friendly, and very thorough in their work and in answering our questions. Their explanations of the system and how it works and what to watch for were very clear. They were also very careful working in our home, and cleaned up the work areas well. We recommend them highly for RADON Mitigation work!
Response from the owner:Thank you so much for the positive feedback and 5-star review! We'll pass it along to our team. We really appreciate your business!
If I could, I'd give them a 10! From start to finish with a radon mitigation system installation, they were all very professional, friendly, welcoming of questions without impatience, and very communicative by email and texts. They instilled confidence that they know their stuff. Four days after they installed our mitigation system, our radon level dropped from a scary 53 pCi/L to 0.9 pCi/L. This company is great!
Response from the owner:Thank you so much for the positive feedback & 5-Star review! We're so glad you're pleased with our services & team. We truly appreciate your business and are happy you & your family can breathe easier with the radon system in place! 🙂 ~The PE Team
I have a slightly more complex setup with a crawl, newer perimeter French drain, finished basement, and egress window and Protect Environmental got my levels down from 11 to 1.5! Portia in the office is super friendly and responsive, and Brad and his team are extremely knowledgeable and hard working. They beat three other quotes I received, too. Couldn't be happier and would HIGHLY recommend!
Response from the owner:Thank you so much for the positive feedback & 5 Stars! We're thrilled you're happy with our team & services. We're passionate about reducing radon levels to help create healthier environments for our clients...and we truly appreciate your business! The PE Team
Response from the owner:Thank you so much for the 5 stars! We're glad you're pleased with our team and services! PE
Fine for installation but subsequent service is not the best. No idea when they will show up and communication is not the best.
Response from the owner:David - sorry to see your review. I have discussed the situation with our office staff and I know that we narrowed down the arrival window to 12 - 2 based off the number of appointments that our estimator had for the day, unfortunately we do not know how long each appointment will take and today the estimator was running ahead of schedule and was not able to meet you. We did however talk with and provide feedback to Michael in regards to our findings and recommendations for next steps. I would be happy to set a time to come out and discuss these findings in person, just let us know some time slots and I will make one of these work. Shad Evans - Columbus Branch Manager
Response from the owner:Thank you for the 5 Stars - we truly appreciate it!
noah and Ethan were very professional and friendly. I am 100% sure that the job that they have done will surpass anyone in the business. before they started they made sure all the details in the original estimate is what they are going to do. they informed me of the process and the time involved. they asked if I had any questions as they explained everything. once they finished they explained the operation of the system and checking of the sensor for me to observe regularly. they protected all the work areas with coverings. we're very satisfied and will recommend the company to others. thanks again. Michael Smerdell Delaware Ohio
Response from the owner:Thank you for sharing your experience and the 5 Stars! We’re happy to know our team provided excellent service and took great care throughout your project - we'll definitely pass the feedback along to Noah & Ethan. Your recommendation means a lot to us, and we truly appreciate your trust. ~The PE Team
From start to finish, Protect Environmental - Dyllon & Chris did a solid install job. Very courteous and professional.
Response from the owner:So glad you're pleased with Dyllon & Chris and their work! Thanks for taking the time to leave a 5-Star review...we really appreciate it! ~The PE Team
I was referred to Protect Environmental and the results was amazing. From the first call getting scheduled for a quote to installation. Everyone was professional, punctual, and friendly. I was told it would be 7-10 day turnaround from signing a contract to install but due to a project being completed sooner they were able to fit me in the schedule earlier than expected. The day of the installation went rather well was able to watch and ask questions the tech was friendly and made sure I understood everything before leaving. I will be referring people to this company going forward.
Response from the owner:Thank you for the positive feedback and 5-Star Review! We're so glad you're pleased with our team and system. We truly appreciate your business and referrals! ~PE
Great job! Explained the whole process before they started and went over everything when they finished. Cleaned everything up nicely. Noah and Ethan both very professional and knowledgeable.
Response from the owner:We're glad you're pleased with our team & services - thank you so much for the 5 stars and taking the time to leave a review. We'll definitely pass the positive feedback along! Sincerely, PE
Had Noah come in to work on internal installation with Ryan and Ethan working on external for a new radon mitigation system. We got three crawl spaces and a pump, and they did a great job working throughout the day to seal things up and explain the system to us. It'll be another day to come in and lay the plastic cover to finish sealing, but all the other work was done and it looks great so far. Noah did well explaining how we can check the system to ensure it works, where all the pipes are running, where the exits are, and they labeled well on the box where the switch is for the system so we can be aware. They let us know that if we run into issues we can call them and for the pump they put in a window held by three screws and sealed with a gasket so we can see whats going on in there without having to remove the seal. Great company to work with so far and we look forward to the finished system and getting to see it work. The fan is already running and it is quite pleasantly quiet so we're happy about that as well. I expected it to be louder than it is, so it was a nice surprise. We have wildlife in the area and they meshed the top to ensure no birds, bats, or squirrels get in there.
Response from the owner:Thank you for the positive feedback & 5 Star Review! We'll be sure to pass it to your team!! PE
The service was excellent! Noah and Chris were very professional, thorough, and responsible! They worked hard and did an amazing job getting rid of the radon in my house!
Response from the owner:Thank you for the positive feedback - we'll definitely pass it along to your team! We're glad you're pleased with their work and the results of the radon system. We truly appreciate your business!
We had Protect Environmental install a Radon mitigation system and sump pump. They were on time and did a good job in resolving my Radon issue.
Response from the owner:Thank you so much for the review and 5 stars! We truly appreciate your business. ~The PE Team
Protect Environmental did an excellent job throughout the entire process of mitigating the radon level in my house. Brad was thorough, knowledgeable and professional. He explained the process and options when he came to my house to inspect it and give me an estimate. Noah and Ethan arrived early and were professional and knowledgeable. They explained the process and did an exceptional job installing the mitigation system and sealing cracks in the garage floor. Additionally they were polite and congenial, answering my questions. The job was completed within 2-3 hours and the clean up was immaculate. I highly recommend Protect Environmental.
Response from the owner:Thank you for the great feedback and 5 Stars! We're glad you're pleased and will definitely pass the feedback to Brad, Noah and Ethan. We truly appreciate your business!! PE We appreciate you taking the time to share such thoughtful feedback! We’re so glad to hear Brad, Noah, and Ethan provided a professional and thorough experience from start to finish. Your recommendation means a lot to us! Thank you for trusting Protect Environmental to help make your home a safer place to breathe. – The Columbus Protect Environmental Team
Can't say enough wonderful things about Protect Environmental. They were thorough and thoughtful, effectively lowering our radon levels after another company gave up on us. I'm so grateful for their expertise.
Response from the owner:Thank you for the positive feedback...we're so glad we were able to lower your radon level with diagnostics & additional mitigation. Sincerely, The PE Team
Protect Environmental has been a pleasure to work with. They made everything so easy. The communication is the best service. I had quite a few questions, changes, etc. and the service was always pleasant. The technicians that installed the system were so delightful and worked quickly and with great care. I appreciate all of the help in radon mitigation 🙂
Response from the owner:Thank you for the positive feedback & 5-Star review...we truly appreciate it!
Response from the owner:Thank you for the 5-Star review!!!
Posted a review earlier but neglected to mention Brad who came to the house to evaluate the basement before the actual mitigation took place. He was professional, knowledgeable and friendly just like everyone else was. Thank you Portia, Alicia, Dylan, Ryan & Brad. I would highly recommend this company.
Response from the owner:Thank you for the awesome review and 5-Stars...we all truly appreciate your recognition! ~The PE Team

Crawl Space Encapsulation FAQs

Does crawl space encapsulation reduce radon?

Encapsulation can help limit radon entry by sealing the crawl space from soil gases. In some homes, encapsulation is combined with a radon mitigation system to achieve the best results.

Most encapsulation projects can be completed in one to three days, depending on the size of the crawl space and site conditions.

High-quality encapsulation systems installed with durable materials can last many years when properly maintained.

Encapsulation helps address moisture, improve indoor air quality, support energy efficiency, and protect the home’s structure. Many homeowners find it provides long-term benefits for both health and home performance.

Yes. By sealing the crawl space, encapsulation helps stabilize temperatures throughout the home and can significantly reduce cold floors and drafts during the winter months.

Cost depends on the size and condition of the crawl space, materials used, and whether radon mitigation integration is included. Contact our team for a custom quote.

Get a FREE Crawl Space
Encapsulation Quote Today!

Protect your home from moisture and harmful soil gases with our expert crawl space encapsulation serivces! Our tea, of professionals are ready to help you by providing free custom pricing today.

Professional Radon Testing

Knowing your radon risk starts with a radon test. If your levels are elevated, our expert radon mitigation services can reduce your levels and make your home a safe place to breathe.

Expert Radon Mitigation

Activated radon mitigation systems combined with the power of professional crawl space encapsulation can protect your home from harmful contaminants, like radon gas.