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Waterproofing · Wilmington, NC/Updated June 13, 2026

The 10 Best Waterproofing Contractors in Wilmington, NC

Water damage can devastate homes in Wilmington, making expert waterproofing essential. Our ranked list helps you find the right contractor to protect your property.

Editorially independent10 companies evaluated
cover story
★ Editor's ChoiceCrawlspace Medic of Wilmington
96Score
Latest update · June 13, 2026: Initial ranking published. 10 Wilmington-metro waterproofing businesses evaluated, top 10 ranked by Vetted Score.

Water damage poses a significant threat to homes in Wilmington, especially given the area's humidity and coastal conditions. Poor waterproofing can lead to structural issues, mold growth, and costly repairs, making it crucial to hire a qualified contractor.

We evaluated 10 local waterproofing contractors, focusing on their ratings, review counts, and customer feedback. This list highlights businesses with proven success in preventing water damage, ensuring you make an informed choice.

10waterproofing contractors evaluated in Wilmington
4.91average rating across the field
1.3Kcustomer reviews analyzed

Cityvetted analysis of public Google review data, updated June 13, 2026.

How much does waterproofing cost in Wilmington? See the price breakdown →

Our top picks

At a glance · three categories
★ Editor's Choice
96Score

Crawlspace Medic of Wilmington

★★★★★5.0(477 reviews)

With a perfect rating of 5 stars from 477 reviews, Crawlspace Medic of Wilmington earns high praise for its thorough inspections and effective waterproofing solutions.

Read full review
Best Value
94Score

Groundworks Foundation Repair Wilmington

★★★★★4.9(334 reviews)

Groundworks Foundation Repair Wilmington holds a solid rating of 4.9 stars across 334 reviews.

Read full review
Most Reviewed
94Score

Crawl Space Ninja of Wilmington

★★★★★4.9(143 reviews)

Crawl Space Ninja of Wilmington has earned a commendable rating of 4.9 stars from 143 reviews.

Read full review

All 10, compared

Data as of June 13, 2026
BusinessVetted ScoreGoogle ratingReviewsBest for
1
96Score
5.0★★★★★
477Homeowners seeking high-quality waterproofing solutions
2
94Score
4.9★★★★★
334Budget-conscious homeowners needing reliable waterproofing
3
94Score
4.9★★★★★
143Homeowners with crawl spaces needing targeted waterproofing
4
92Score
4.9★★★★★
104Homeowners with foundation repair needs
5
90Score
4.9★★★★★
74Homeowners needing moisture control solutions
6
90Score
4.9★★★★★
74Homeowners needing both waterproofing and pest control
7
88Score
4.9★★★★★
34Homeowners looking for personalized service
8
82Score
5.0★★★★★
25Smaller waterproofing jobs
9
80Score
4.7★★★★★
37Homeowners needing thorough assessments
10
78Score
5.0★★★★★
6Homeowners seeking new options
Methodology

How we evaluated all 10 waterproofing contractors.

To rank the best waterproofing contractors in Wilmington, we analyzed each business based on their customer ratings and the volume of reviews. Our evaluation process is transparent, ensuring that no company pays for placement on our list.

We refresh our rankings monthly, so you can trust that the information is current and reflects the latest customer experiences. This approach helps you find reliable service providers in your area.

The Vetted Score: six weighted factors

Customer sentiment25%
Rating quality20%
Review volume & velocity20%
Website trust signals15%
Service breadth10%
Business longevity10%

Sentiment is measured by AI analysis of review text, recency-weighted, with verified-pattern checks to discount suspicious review bursts.

Full reviews

The rankings · in order
1
★ Editor's Choice

Crawlspace Medic of Wilmington

★★★★★5.0(477 reviews)
96Score

With a perfect rating of 5 stars from 477 reviews, Crawlspace Medic of Wilmington earns high praise for its thorough inspections and effective waterproofing solutions. Customers often highlight the knowledgeable staff and prompt service. However, their pricing can be on the higher side, which may not suit every budget. A review base that deep is hard to game, and the score barely moves across it, which is the clearest consistency signal we track. Most of what reviewers hire it for is homeowners seeking high-quality waterproofing solutions. It serves Wilmington, NC and surrounding areas, with $1,000 to $5,000 pricing, and the honest trade-offs are higher pricing and limited service area.

Pros

  • Expert staff
  • Thorough inspections
  • Quick response times

Cons

  • Higher pricing
  • Limited service area
Best forHomeowners seeking high-quality waterproofing solutions
Service areaWilmington, NC and surrounding areas
Typical pricing$1,000 to $5,000
2
Best Value

Groundworks Foundation Repair Wilmington

★★★★★4.9(334 reviews)
94Score

Groundworks Foundation Repair Wilmington holds a solid rating of 4.9 stars across 334 reviews. Customers appreciate the value they receive, citing effective solutions and fair pricing. Their expertise in foundation issues makes them a strong contender. Still, some customers report longer wait times for appointments. A review base that deep is hard to game, and the score barely moves across it, which is the clearest consistency signal we track. Most of what reviewers hire it for is budget-conscious homeowners needing reliable waterproofing. It serves Wilmington, NC and nearby regions, with $800 to $4,000 pricing, and the honest trade-offs are longer wait times and fewer service options.

Pros

  • Fair pricing
  • Effective solutions
  • Experienced team

Cons

  • Longer wait times
  • Fewer service options
Best forBudget-conscious homeowners needing reliable waterproofing
Service areaWilmington, NC and nearby regions
Typical pricing$800 to $4,000
3
Most Reviewed

Crawl Space Ninja of Wilmington

★★★★★4.9(143 reviews)
94Score

Crawl Space Ninja of Wilmington has earned a commendable rating of 4.9 stars from 143 reviews. Customers frequently commend their professionalism and thorough work. They specialize in crawl space waterproofing, making them a great option for homeowners with specific needs. However, their limited number of reviews means they are still proving themselves in the market.

Pros

  • Professional service
  • Specialized expertise
  • Good customer rapport

Cons

  • Limited review base
  • Potential for higher costs
Best forHomeowners with crawl spaces needing targeted waterproofing
Service areaWilmington, NC and surrounding areas
Typical pricing$900 to $4,500
4

Groundworks Foundation Repair

★★★★★4.9(104 reviews)
92Score

Groundworks Foundation Repair has a strong 4.9-star rating from 104 reviews. Customers praise their effective solutions and knowledgeable staff. They are a solid choice for those facing foundation issues. However, some users mention occasional scheduling difficulties. That is a substantial body of feedback for a local operator, enough to trust the rating rather than credit a lucky streak. Most of what reviewers hire it for is homeowners with foundation repair needs. It serves Wilmington, NC, with $1,000 to $5,000 pricing, and the honest trade-offs are scheduling difficulties and limited service options.

Pros

  • Knowledgeable staff
  • Effective solutions

Cons

  • Scheduling difficulties
  • Limited service options
Best forHomeowners with foundation repair needs
Service areaWilmington, NC
Typical pricing$1,000 to $5,000
5

HydroHelp911 Crawl Space & Foundation Repair

★★★★★4.9(74 reviews)
90Score

HydroHelp911 Crawl Space & Foundation Repair holds a 4.9-star rating from 74 reviews. Customers appreciate their thorough work and attention to detail. They excel in addressing moisture issues in crawl spaces. However, some reviews indicate that their response times could be improved. The sample is modest but steady, with reviewers describing the same strengths instead of one-off praise. Most of what reviewers hire it for is homeowners needing moisture control solutions. It serves Wilmington, NC, with $800 to $4,000 pricing, and the honest trade-offs are response times and limited service offerings.

Pros

  • Attention to detail
  • Thorough work

Cons

  • Response times
  • Limited service offerings
Best forHomeowners needing moisture control solutions
Service areaWilmington, NC
Typical pricing$800 to $4,000
6

Sahara Crawlspace and Pest

★★★★★4.9(74 reviews)
90Score

Sahara Crawlspace and Pest has a 4.9-star rating from 74 reviews. Customers commend their dual focus on waterproofing and pest control, making them a versatile choice. However, some clients have reported issues with follow-up service. The sample is modest but steady, with reviewers describing the same strengths instead of one-off praise. Most of what reviewers hire it for is homeowners needing both waterproofing and pest control. It serves Wilmington, NC, with $700 to $3,500 pricing, and the honest trade-offs are follow-up service issues and limited reviews.

Pros

  • Versatile services
  • Positive customer feedback

Cons

  • Follow-up service issues
  • Limited reviews
Best forHomeowners needing both waterproofing and pest control
Service areaWilmington, NC
Typical pricing$700 to $3,500
7

Queen Foundation Repair

★★★★★4.9(34 reviews)
88Score

Queen Foundation Repair has a rating of 4.9 stars from 34 reviews. They are known for their friendly service and effective solutions. However, their smaller review base may raise questions about their experience in the field. The sample is modest but steady, with reviewers describing the same strengths instead of one-off praise. Most of what reviewers hire it for is homeowners looking for personalized service. It serves Wilmington, NC, with $1,000 to $4,500 pricing, and the honest trade-offs are smaller review base and limited service options.

Pros

  • Friendly service
  • Effective solutions

Cons

  • Smaller review base
  • Limited service options
Best forHomeowners looking for personalized service
Service areaWilmington, NC
Typical pricing$1,000 to $4,500
8

Crawlspace Maniac

★★★★★5.0(25 reviews)
82Score

Crawlspace Maniac has a perfect rating of 5 stars from 25 reviews. Customers appreciate their thorough work and attention to detail. However, with a limited number of reviews, they remain a promising but unproven choice for larger projects. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is smaller waterproofing jobs. It serves Wilmington, NC, with $600 to $3,000 pricing, and the honest trade-offs are limited review base and unproven for larger projects.

Pros

  • Attention to detail
  • Thorough work

Cons

  • Limited review base
  • Unproven for larger projects
Best forSmaller waterproofing jobs
Service areaWilmington, NC
Typical pricing$600 to $3,000
9

Allpro Crawlspace Repair & Stabilizing

★★★★★4.7(37 reviews)
80Score

Allpro Crawlspace Repair & Stabilizing holds a rating of 4.7 stars from 37 reviews. They are praised for their reliability and thorough assessments. However, some customers have noted that their pricing can be higher than average. The sample is modest but steady, with reviewers describing the same strengths instead of one-off praise. Most of what reviewers hire it for is homeowners needing thorough assessments. It serves Wilmington, NC, with $900 to $4,000 pricing, and the honest trade-offs are higher pricing and limited service offerings.

Pros

  • Reliable service
  • Thorough assessments

Cons

  • Higher pricing
  • Limited service offerings
Best forHomeowners needing thorough assessments
Service areaWilmington, NC
Typical pricing$900 to $4,000
10

Port City Foundation Repair Experts

★★★★★5.0(6 reviews)
78Score

Port City Foundation Repair Experts has a perfect rating of 5 stars from just 6 reviews. While they receive positive feedback for their service, the limited number of reviews makes it difficult to assess their reliability over time. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is homeowners seeking new options. It serves Wilmington, NC, with $500 to $3,000 pricing, and the honest trade-offs are very limited review base and unproven long-term reliability.

Pros

  • Positive initial feedback

Cons

  • Very limited review base
  • Unproven long-term reliability
Best forHomeowners seeking new options
Service areaWilmington, NC
Typical pricing$500 to $3,000
Before you book

How to choose a waterproofing contractor in Wilmington

Selecting the right waterproofing contractor is critical to avoid costly mistakes. Here are key factors to consider when making your choice.

Check Reviews and Ratings

Look for contractors with a strong track record of positive reviews. High ratings indicate reliability and quality service.

Evaluate Experience and Specialization

Choose contractors who specialize in waterproofing and have experience in Wilmington's unique climate conditions.

Get Detailed Estimates

Request detailed estimates from multiple contractors to compare pricing and services offered.

What it costs

What waterproofing costs in Wilmington

Basic Inspection and Assessment$100 to $300 for a thorough evaluation of your property.
Minor Repairs$500 to $1,500 for small fixes, such as sealing cracks or minor drainage improvements.
Full Waterproofing Systems$2,000 to $10,000 for comprehensive solutions including drainage systems and sump pumps.
Major Structural Work$10,000 and up for extensive repairs or foundation work requiring significant intervention.

Frequently asked questions

How much does waterproofing cost in Wilmington?

Prices for waterproofing services in Wilmington typically range from $1,500 to $5,000, depending on the extent of the work needed.

What should I look for in a waterproofing contractor?

Look for contractors with strong reviews, proven experience in your specific issue, and clear pricing structures.

How often is this ranking updated?

We re-run the full analysis monthly with fresh review data. Last updated June 13, 2026.

Our verdict

For most Wilmington homes: <strong>Crawlspace Medic of Wilmington</strong>

Call Crawlspace Medic of Wilmington first for its stellar 5-star rating across 477 reviews. If you're looking for a more budget-friendly option, Groundworks Foundation Repair Wilmington is ideal with its 4.9 stars on 334 reviews, especially for larger projects. For specialized crawl space issues, Crawl Space Ninja of Wilmington also offers outstanding service with a 4.9 rating on 143 reviews.