Delaware Crawl Space Encapsulation Solutions

Properly seal and waterproof your crawl space to avoid damage to your home.

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Crawl Space Encapsulation Before & After


Ready to have a clean & dry crawl space? Schedule a free estimate



Benefits of Encapsulating Your Crawl Space

Your crawl space may be out of sight, but it plays a crucial role in the health of your home. Excess moisture in the crawl space can lead to issues like mold growth, wood rot, poor indoor air quality, and structural damage. Encapsulating your crawl space creates a barrier to prevent moisture, effectively controlling humidity levels and helping prevent mold growth. This creates a dry, clean, and more energy-efficient space to protect the health of your home.

Prevents mold growth


Keeps allergens from spreading to the first floor to improve indoor air quality


freezing pipes


Protects equipment from rust and water damage


Improves your home's energy efficiency


Reduces pest problems

pest-control 1

storage space



Moisture & Mold Control for Your Crawl Space

Never crawl into a dirty, dark, and damp crawl space again! Seaside Crawl Space offers high quality crawl space encapsulation systems to keep your crawl space healthy, dry, and comfortable.


Crawl Space Encapsulation

Protect your home's structural integrity against moisture and mold issues and improve indoor air quality with our comprehensive crawl space encapsulation system.


Dehumidifier Installation

Control humidity levels and prevent unwanted mold growth in your crawl space. Seaside also offers CraWl-Fi Monitoring™, a Wi-Fi thermostat app that allows you to control your dehumidifier and get real time humidity readings on your mobile device.


Crawl Space Mold Remediation

Keep your family safe & let our mold experts safely remediate mold lingering in the dark, damp spaces of your crawl space.


Seaside Advantage™ Maintenance Programs

We’re here for you for the life of your encapsulated crawl space with our crawl space maintenance programs. You can rest assured that your crawl space will remain healthy, dry and comfortable for years to come.


Crawl Space Repairs

Let our experts address issues such as sagging floors, old or missing vapor barrier, damaged insulation, and more!


Drain System

Say goodbye to water issues in your crawl space. Our drain systems ensure effective ground water management so your crawl space stays dry & comfortable.


Real Estate Inspections

Are you looking to purchase a home? Identify potential issues early with crawl space inspections performed by our team of experts for your real estate investment!

Aprilaire Healthy Air Partner


Certified Mold Remediation Contractor


BPI Certified Building


Member of the National Building Performance Association, Founding Member of the Delaware Chapter

Building Performance Association

Energize Delaware Participating Contractor

Energize Delaware

We have a strong track record of customer satisfaction.

Jeffrey Williamson
Jeffrey Williamson
We interviewed several encapsulation contractors for my mother-in-law's home at the beach and selected Seaside Environmental over the others. We were very impressed with Nick from our first meeting. Nick performed a very thorough inspection not only of the crawlspace but also made numerous recommendations regarding improvements under the living spaces that would improve the energy efficiency and indoor air quality of the home. None of the other contractors addressed these issues and were concerned only with correction of moisture issues. In addition, Nick informed us of the Energize Delaware program that could provide rebates based on energy efficiency improvements via a whole-house audit before and after the project. From the start, Nick's team was timely, communicated extremely well and coordinated all activities with the Energize Delaware program so that the project moved along without pause. We couldn't be happier with the end result. The crawlspace is clean and dry and the overall energy efficiency of the home has improved approximately 30%. Additionally, the indoor air quality has improved to the point where my mother-in-law rarely needs an allergy medication while at home; we believe this is entirely due to elimination of the penetrations and leaky ductwork under the home which were allowing mold spores, etc. to enter the interior of the home. We highly recommend Seaside Environmental for crawlspace encapsulation work. It is a family owned and operated business that is very friendly and is totally focused on customer satisfaction. Thank you Nick, Nicole and the Seaside Environmental Team for a terrific experience.
Michael Pippi
Michael Pippi
Nick and Nicole made the process of crawl space encapsulation seamless. Any questions that arose they returned calls or emails in a prompt fashion. The quality of the work was outstanding and professionally done. I highly recommend Seaside Environmental for crawl space encapsulation .
Mary Quite Contrary
Mary Quite Contrary
Excellent service! They came highly recommended and I see why. They did a great job encapsulating our crawl space.
Marian Kort
Marian Kort
What a great company!!!! They are a wonder bunch of people from Nichole who answers the phone and questions, Nick who came for out for our free estimate and all the guys who came to do the job. Thank you so much on a job well done. Marian Kort
Andi Sax
Andi Sax
I would highly recommend Seaside - they conditioned my crawl space and did a great job!
kim hannon
kim hannon
The company is a joy to work with! The owners are friendly and efficient. The crew was easy to understand, very professional and did an awesome job. The company did just what they said they would do, it's great!
Pat Milstead
Pat Milstead
I love everything about Seaside. Nick, Nicole Brandon, Frank and his team were professional and responsive. Allen will give you the all the information you need in regard to rebates programs. If you were ever thinking about encapsulating your crawspace, now is the time and do it with Seaside.
Deanna Skelly
Deanna Skelly
We worked with 5 companies through the quote process and selected Seaside for several reasons: strong reviews, coordination of a rebate with Energize Delaware, responsiveness to our (many) questions, and competitive pricing. Through the entire process we had great communication regarding scheduling, findings, pictures, and follow ups. We had to coordinate from out of town and we worked through those logistics and appreciated Seaside’s flexibility. Now, with the impacts and extreme rains from Hurricane Ian this week we are relieved to have consistently low humidity readings. We certainly recommend this team of professionals. They were great to work with through the entire process!
Justin herd
Justin herd
We had mold throughout our crawl space and in our hvac ducts. Nick came out crawled under the house did his inspection and came back to me with recommendations and was very knowledgeable with how to properly remove and treat the mold. He got in touch with our hvac guy to set his schedule with his tk make there process eaiser as well. He never once tried to force anything we did not need. Was very responsive when ever I had questions on things. Very professional and on time. Him and his crew did a awesome job on our crawl space and I would highly recommend him to anyone.


We have a strong track record
of customer satisfaction.

We had encapsulation of the crawl space in our townhouse. Nick and his crew were very professional, very friendly, and very knowledgeable. We enjoyed working with them. Everyone was quick to respond to all of our questions - both questions that were directed to the crew when they were here and also questions to the office via email. We checked with other crawlspace companies, and we are so glad we chose Seaside Crawl Space!

Pat Alters

Seaside does not only great work but in this day and age its hard to find people that care about the work they do. Nick was not only professional but communicated through out the process and stopped by on more than one occasion to make sure what we had planned was exactly what was needed. Thanks Seaside

Eric Camper

Nick & Nicole area a great help in providing solutions and information. Matt and the crew did a great job installing the crawl space systems. Would recommend them to anyone who needs Crawl Space work. This company provides the complete job.
Michael Renn
Matt, Melvin, Yorman did a fantastic job encapsulating our crawl space. Frank pitched in too day one! They got into small spaces others said they couldn’t do, and did a great job breaking down mounds of dirt and filling up a crater-like hole to make the space level and flat. Their work was clean and we noticed the difference right away in the house. Would use this company again. Best quote out of many and a quality job.
Nancy D

    Trusted Crawl Space Professionals

    Crawl Spaces Serviced

    We are firm believers in keeping all crawl spaces dry, healthy and comfortable!

    Happy Homeowners

    Our experts have treated single households, HOAs, rental properties, and commercial buildings.

    0 Million+
    Square Feet of Vapor Barrior Installed

    Our HD-C Systems provide the most value and effectiveness to meet different budgets.

    0 Million+
    Customers Saved in Rebates

    Money we’ve gotten back for homeowners from the Energize Delaware Program

    We Love Working on
    Crawl Spaces for Delaware
    in Kent &
    Sussex County

    We Love Working on
    Crawl Spaces for Delaware
    in Kent &
    Sussex County

    Why Seaside Crawl Space?

    Why Select Us As Your Preferred Provider?

    Continued Support
    Long-Term, Proven
    Locally Trusted
    Up to $4,000
    Rebate Discount

    Let's Get Rid of Your Damp & Dingy Crawl Space, Together

    You deserve the highest quality solutions.

    Schedule A Free Inspection
    In a rush? Call us: 302-248-1022
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