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Crawl Space Repair & Encapsulation in Johns Island, SC

Review Logo 4.8 (387)

The humid environment of Johns Island, characterized by an average annual rainfall of 54 inches, often leads to crawl space issues for homeowners. The combination of moisture and the island’s sandy soil can create ideal conditions for mold, high humidity, and even structural damage. At Mount Valley Foundation Services, we specialize in crawl space repair solutions, including encapsulation, which prevents moisture from entering your space. Our team can assess your crawl space and recommend the right combination of drainage systems, sump pumps, and vapor barriers to ensure a dry, healthy environment.

Mount Valley Foundation Services, a Groundworks Company, is dedicated to providing Johns Island homeowners with reliable foundation repair, basement waterproofing, crawl space encapsulation, and concrete services. Our priority is to deliver high-quality home repair solutions with personalized service throughout South Carolina and parts of North Carolina and Georgia. With our trained professionals and leading products, we are committed to restoring the safety and integrity of your home.

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Mount Valley Foundation Services is Johns Island's Crawl Space Repair Expert

Serving Homeowners for over 39 years
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Recent Work Completed Near You

10,229 crawl spaces repaired by the Charleston branch

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Why your neighbors trust Mount Valley Foundation Services

We've earned 362 five star reviews.

"We called Mount Valley last Friday to get an estimate on some foundation repairs that have gotten progressively worse. They scheduled an appointment that day for Wednesday of next week. Dino Rhoads was the technician who came to assess the issue. He called to let me know exactly when he would be arriving. He was very considerate and polite and had a vast amount of knowledge. The assessment took several hours and I was amazed at how thorough he was in getting exact details so that he could best create a plan for us. When he finished looking at, around, and under the house, we sat for at least an hour where he shared pictures of what he saw and explained in detail what they indicated. I never got the feeling like he was trying to sell me anything that I didn't specifically ask for and need. Dino showed excellent professionalism, and an exceptional knowledge of our situation and the best ways to remedy them. I'm very impressed! I would absolutely recommend their services! And, ask for Dino!"

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554 of your neighbors recommend our local Groundworks branch.

Our in-house crews are certified and local to your area.

Our work comes with a nationally backed warranty.

Types of Crawl Space Damage in Johns Island

Common Causes of your Crawl Space Problems in Johns Island

Moisture and Humidity

Excess moisture in your crawl space can lead to mold growth, wood rot, and structural damage over time.

Groundwater Seepage

Poor drainage or leaking pipes can lead to standing water in your crawl space, potentially causing mold growth and compromising structural integrity.

Poor Ventilation

Open vents in your crawl space allow humid air to enter, leading to condensation, mold, and long-term moisture damage.

Pest Infestations

Damp or unsealed crawl spaces create an inviting environment for rodents, termites, and other pests, leading to structural damage and contamination.

Soil Settlement

Shifting soil beneath your home can lead to foundation settlement, causing sagging floors and damage to crawl space supports.

Foundation Cracks

Cracks in crawl space foundation walls allow water, pests, and unconditioned air to enter, causing moisture and structural issues.

High Energy Bills

Poorly sealed or damaged crawl spaces can increase heating and cooling costs due to energy loss.

Stack Effect

Damage in your crawl space allows mold and odors to spread into your home. Repairing the crawl space prevents this, improving your air quality and living environment.

Climate Conditions

Heavy rains or drought can shift the soil beneath your home, leading to sagging floors or structural damage in your crawl space. Repairing these issues restores stability and protects your home from further problems.

Crawl Space Repair Solutions We Provide For You in Johns Island

Create Solid Floors for Strong Homes

What We Do

  • Examine your crawl space closely
  • Determine the reason for joist failure
  • Make a plan to repair and stabilize

What We Use

 Floor Jacks Learn More

Control Groundwater Seepage

What We Do

  • Identify leakage sources
  • Consider your home's unique needs
  • Install a reliable drainage system

What We Use

 Drainage System Learn More
Drainage Matting Learn More
Sump Pump Learn More

Change the Environment

What We Do

  • Recognize ventilation insufficiences
  • Offer options for moisture control
  • Regulate humidity levels effectively

What We Use

 Vapor Barrier Learn More
Dehumidifier Learn More
Crawl Space Doors Learn More

Properly Insulate the Home

What We Do

  • Diagnose insulation concerns
  • Take expert measurements
  • Deliver lasting thermal protection

What We Use

 Insulation Learn More

Our Other Services in Johns Island

Basement Waterproofing
Concrete Lifting
Foundation Repair

Our Mount Valley Foundation Services' Johns Island Office Serves You

Our Address

1850 Ashley River Rd. Charleston, SC. 29407

Contact Us

(855) 976-0804

About Us

Meet our Johns Island team, see our
service area, and get financing details
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Proudly Serving Johns Island and Surrounding Areas

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Trust the experts at Mount Valley Foundation Services

How it works

Straightforward and simple process

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Schedule an
inspection

Upon arrival, our Inspector will introduce themselves and chat with you about the problems you're experiencing. Based on the information you provide them, they'll then create a plan of action to examine your home inside and out.

Receive a detailed repair plan and quote icon

Receive a detailed
repair plan and quote

Once the inspection is complete, the Inspector will sit with you and present their findings. And because we provide same-day estimates, you'll have all the cost and financing information you need to make a decision right away.

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Get the work done
when you're ready

When you're ready to move forward with repairs, we'll help you choose an installation date that works for your schedule, and notify our Installation team immediately of the upcoming work.