Top-rated basement waterproofing pros.

Get matched with top basement waterproofing pros in Supply, NC

Enter your zip and get matched with up to 5 pros

TRUSTED BY SUPPLY, NC HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon16
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Supply

Avatar for Groundworks
Groundworks
5.0(
11
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Supply, NC and surrounding areas

Approved (Corporate)

In business since 2003

Free estimates

Warranties offered

"Kim, Brian and Matt did an outstanding job and completed the project in two days instead of three. An awesome crew of professionals who did an outstanding job! I recommend Groundworks to anyone who needs an encapsulation of their crawl space! Great job everyone! God bless!!!"
Concrete
Concrete
Concrete
Concrete
Crawl Space

+15

78 neighbors recently requested a quote
HydroHelp911 Crawl Space & Foundation Repair LLC
5.0(
5
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Supply, NC and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

Since 2017, HydroHelp911 has provided expert foundation repair and moisture control across NC and SC. As a dedicated, family-oriented company, we specialize in permanent solutions for foundation settlement, sagging floors, wet basements, and crawl space encapsulation. We also offer professional concrete lifting to restore uneven surfaces. Our certified specialists provide free inspections and custom repair plans backed by lifetime warranties. With 1,000+ 5-star reviews and an A+ BBB rating, we pride ourselves on fixing what others miss. Trust us for a safe, dry, and stable home.

After Encapsulation
During Encapsulation
14 neighbors recently requested a quote
Avatar for Crawlspace Miracles
Crawlspace Miracles
5.0(
3
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Supply, NC and surrounding areas

Approved

In business since 2025

Free estimates

Small jobs welcome

"Crawlspace Miracles LLC did a great job on my crawl space. The team was friendly, professional, and very knowledgeable. They showed up on time, worked efficiently, and made sure everything was done the right way. They also kept me informed throughout the process and left everything neat when they finished. I really appreciate their attention to detail and would gladly recommend them to anyone needing crawl space services."
Encapsulation
Encapsulation
Encapsulation
Encapsulation
Encapsulation

+48

7 neighbors recently requested a quote
Showing 1-10 of 50
Basement Waterproofing questions, answered by experts

A sewage smell in your crawl space is usually from a damaged or clogged pipe leaking sewer gasses or actual sewage underneath your home, but there are some other common causes. Moisture, from poor or damaged encapsulation or a malfunctioning sump pump, can harbor mold and bacteria, causing a musty smell. Pests can also get stuck in your crawl space and die, which causes a sewage-like odor.

Ductwork sweats due to a temperature difference between the air inside the ducts and the surrounding air, similar to how a cold drink develops condensation in the heat. This sweating is a sign that your HVAC system is not operating at peak efficiency. The best way to keep ductwork from sweating is to wrap it in proper insulation, which also improves your system's energy efficiency. Another option is to close off your crawl space and install a dehumidifier to dry the air and lower its dew point.

If you don’t wish to dig it out and convert it into a finished basement, you can still encapsulate your crawl space to protect it from damage for an average cost of $5,500. Finishing a crawl space beyond this isn’t really worthwhile, as the low ceilings mean you won’t be able to use the area as living space.

A crawl space can be as little as 42 inches below the grade of your house, but this is not always recommended in flood-prone areas. At a minimum, there must be at least 16 inches of clearance between the ground and the floor joists to access the space in an emergency.

Regular inspections, proper drainage management, and ensuring soil stability help prevent future settlement issues.

The Supply, NC homeowners’ guide to basement waterproofing services

From average costs to expert advice, get all the answers you need to get your job done.