Crawl Space Encapsulation: Comprehensive Protection for Your Home
Seal Out Moisture and Secure Your Home’s Health with MDH
Committed to integrity, quality, and communication
Serving homeowners across the Gulf Coast
Over 250 Google Reviews
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Accredited Business
Crawl Space Encapsulation: Comprehensive Protection for Your Home
Seal Out Moisture and Secure Your Home’s Health with MDH
Request a free consultation today
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About Our Crawl Space Encapsulation Services
Our Signature Crawl Space Encapsulation process is meticulously crafted to protect your home’s crawl space against moisture and external elements. This comprehensive service includes the installation of a robust moisture barrier, efficient perimeter drainage with a sump pump, and a strategically placed dehumidifier. Our encapsulation not only safeguards the structural integrity of your home but also prevents fungal growth, enhances indoor air quality, and improves energy efficiency. By using top-tier materials and proven techniques, we ensure lasting protection for your residence.
Benefits of Crawl Space Encapsulation

Enhanced Air Quality and Health
Beyond mere encapsulation, MDH Signature Crawl Space Encapsulation incorporates a dehumidifier to control moisture rigorously and prevent fungal growth. This critical step ensures healthier indoor air quality, providing a safer and more comfortable environment, especially for those with allergies or respiratory conditions.

Boosted Energy Efficiency and Reduced Costs
Our encapsulation process, complemented by the addition of a dehumidifier, helps maintain consistent crawl space temperatures. This synergy reduces the strain on your HVAC system, leading to significant energy savings. A drier crawl space also translates to lower maintenance needs and costs, making our solution both efficient and economical.

Increased Home Value and Protection
MDH Signature Crawl Space Encapsulation not only enhances your home's efficiency but also actively protects against moisture-related structural damage. This comprehensive protection preserves your home’s integrity and boosts its market value, marking it as a prudent investment for the future.
Crawl space encapsulation
Frequently asked questions
What is crawl space encapsulation, and what does MDH include?
Encapsulation seals the crawl space from outside air and ground moisture, then controls humidity year-round.
MDH’s Signature Encapsulation typically includes:
Seam-taped vapor barrier on floors & foundation walls (mechanically fastened at the top)
- Sealed piers & seams, insulated rim/band as needed
- Sealed vents & an insulated, air-sealed access door
- Perimeter drainage & sump pump where water intrusion is present
- High-efficiency dehumidifier (dedicated condensate drain)
- Code-compliant electrical and discharge routing
- Moisture & wood condition documentation before/after
How does encapsulation improve air quality and comfort in my home?
Do I need drainage or a sump pump before encapsulating?
Should vents be closed, and what about a dehumidifier?
What materials do you use for the vapor barrier—how durable is it?
We specify crawl-rated liners (thick, reinforced, puncture- and tear-resistant—often 12–20 mil depending on conditions).
Key MDH details:
Seam taping + mechanical fastening on walls
- Wrapped & sealed piers
- Protection mats at traffic areas
- Clean transitions around posts, pumps, and equipment
How long does installation take, and will I need to leave the house?
Most projects finish in 1–3 days depending on size, access, drainage needs, and electrical.
Homeowners can stay in the home
We keep the work area tidy and haul away debris/old liners
What visible signs mean I need encapsulation?
Common Gulf Coast red flags:
Musty odors, visible mold/fungal growth, or efflorescence on walls
- High indoor humidity, foggy windows, or cupping wood floors
- Cold floors in winter, hot/muggy floors in summer
- Condensation on ducts, rusting metal, or rodent/pest activity
- Insulation falling, damp fiberglass, or soft/sagging subfloors
Will encapsulation help structural issues like sagging floors?
Encapsulation protects framing by eliminating chronic moisture—the root cause of many wood failures.
For existing sagging/deflection:
- We pair encapsulation with StrongHold® Floor Supports and joist/girder repairs as needed
- This combo addresses both cause (moisture) and effect (structural movement)
How much does crawl space encapsulation cost?
What maintenance is required after encapsulation?
Low effort, high reward:
Annual inspection (liner, seams, door, drains)
- Dehumidifier filter changes (per manufacturer schedule)
- Sump test (if installed): float switch & discharge check
- Monitor RH (we can add a remote hygrometer if desired)
Is encapsulation safe—any building code or pest considerations?
MDH follows local code and best practices:
- Ignition barrier materials where required
- Termite inspection gaps/visual band as required by local pest control guidelines
- Code-compliant electrical for dehumidifier/sump
- We coordinate with your pest provider to maintain coverage/clearances
What’s the ROI—will this help resale?
Encapsulation:
- Protects structure & indoor finishes, reducing long-term repair costs
- Lowers humidity-related wear on HVAC and flooring
- Improves buyer confidence with transferable documentation and often increases resale appeal
MDH offers warranty coverage for peace of mind
Can I DIY encapsulation?
We don’t recommend it for Gulf Coast conditions:
- Moisture diagnostics & drainage are easy to miss
- Improper sealing = trapped moisture and hidden damage
- Sizing dehumidification and ensuring safe electrical/sump installs require pro experience
MDH ensures a holistic, code-compliant system that performs for the long term.
Trusted by Customers Across the Gulf Coast
Posted on Google
Reedy Construction Kane ReedyTrustindex verifies that the original source of the review is Google.
I couldn't speak more highly of MDH Construction. Mike the Owner takes great pride in his work and strives for his finish product to be as perfect as humanly possible. MDH not only is top class when it comes to the quality of there work, but just as importantly carries an amazing culture that makes them very enjoyable to work with. Last note I will mention for individuals reading MDH's google reviews, if you happen to come across anything negative said about MDH, I would be willing to bet my last penny that the reviewer is the one with the issue, not MDH.Posted on Google
Gene WilliamsonTrustindex verifies that the original source of the review is Google.
Communication was outstanding throughout the entire process from getting a quote to the job completion. Ray , Jeff and the install team were great to work with, and the installation went perfect !!Posted on Google
Mario LynnTrustindex verifies that the original source of the review is Google.
Ken was awesome and gave some great info. Will be using this company in the near futurePosted on Google
Chris WalkerTrustindex verifies that the original source of the review is Google.
Mike and his team are exceptional. Very professional and knowledgeable.Posted on Google
Turner GriffinTrustindex verifies that the original source of the review is Google.
Kyle with MDH spent 2 hours at my home and gave an honest and thorough assessment. He told me what he would do if it were his home and did not try to pressure me into an expensive job first. Highly recommend MDH!Posted on Google
Frederick StraussTrustindex verifies that the original source of the review is Google.
All of the team members were dedicated, efficient, knowledgeable, as well as professional and they communicated very well during the entire lentil project. The end result of workmanship was amazing and we would definitely rate them a five star! All of the team members were great. Mike, the Owner and Pedro went an extra mile to complete the project. We would highly recommend MDH Foundation Repair for your next foundation project! Frederick and Donna StraussPosted on Google
Bobby PresleyTrustindex verifies that the original source of the review is Google.
The MDH Foundation crew was truly outstanding in reference to professionalism, knowledge of their craft, attention to detail and thorough explanation of what they were executing to achieve their goals. One of the very best crews doing any/all types of work at our different homes. Pedro, Casey and TJ are at the top of the list for their work ethic, integrity and commitment to excellencePosted on Google
Johnny MoseleyTrustindex verifies that the original source of the review is Google.
I can describe MDH Foundation Repair in one word “Excellence “ . From the beginning with Kyle Rabren’s inspection and suggestions on what we needed to repair and encapsulate the crawl space of our home. Then Jeff Degenshein’s planning and coordinating the work. Then Chris Perry and crew arriving and performing all the hard work. This organization is top quality and these professionals I just mentioned are top quality. This was a positive experience with this crew and they are above and beyond anyone else. I can only say Thank You to MDH for saving my home.









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