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Local services · Alexandria, VA/Updated June 13, 2026

The Best Waterproofing Contractors in Alexandria, VA

Damp basements are a common issue in Alexandria. Discover the best waterproofing contractors to keep your home dry and protected.

MHMaya Hendricks · Home Services Editor
Updated June 13, 2026 · Next review July 2026
Editorially independent3 companies evaluated
cover story
★ Editor's ChoiceNV Waterproofing and Foundation Repair
96Score
Latest update · June 13, 2026: Initial ranking published. 3 Alexandria-metro waterproofing businesses evaluated, top 3 ranked by Vetted Score.

Waterproofing is essential for homeowners in Alexandria, where moisture can lead to significant structural damage. Finding a reliable waterproofing contractor can save you from costly repairs and ensure your home remains safe and dry.

Our list of the best waterproofing contractors in Alexandria is based on extensive evaluations of customer reviews, service quality, and overall performance. We assess each contractor's reputation and reliability, ensuring only the best are included.

3providers evaluated in Alexandria
4.93average rating across the field
1.3Kcustomer reviews analyzed

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

How much does this service cost in Alexandria? See the price breakdown →

Our top picks

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

NV Waterproofing and Foundation Repair

★★★★★4.9(1,039 reviews)

With an impressive rating of 4.9 from 1,039 reviews, NV Waterproofing and Foundation Repair is a top choice for homeowners.

Read full review
Best Value
94Score

Value Dry Basement Waterproofing

★★★★★4.9(298 reviews)

Value Dry Basement Waterproofing boasts a perfect 4.9 rating from 298 reviews, highlighting their affordability and effective service.

Read full review
Top Pick
78Score

NV Alexandria Basement Waterproofing

★★★★★5.0(7 reviews)

NV Alexandria Basement Waterproofing has a perfect rating of 5 from just 7 reviews, indicating strong initial customer satisfaction.

Read full review

All 3, compared

Data as of June 13, 2026
BusinessVetted ScoreGoogle ratingReviewsBest for
1
NV Waterproofing and Foundation Repair
96Score
4.9★★★★★
1,039Comprehensive waterproofing solutions
2
Value Dry Basement Waterproofing
94Score
4.9★★★★★
298Budget-friendly waterproofing solutions
3
NV Alexandria Basement Waterproofing
78Score
5.0★★★★★
7Initial assessments and quick service
Methodology

How we evaluated all 3 providers.

To evaluate the waterproofing contractors, we analyzed customer ratings, review counts, and feedback from various platforms. We prioritize businesses that consistently deliver quality service and customer satisfaction.

None of the listed companies pay for placement in our rankings. We refresh our data monthly to ensure the most accurate and up-to-date information is presented to our readers.

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

NV Waterproofing and Foundation Repair

★★★★★4.9(1,039 reviews)
96Score

With an impressive rating of 4.9 from 1,039 reviews, NV Waterproofing and Foundation Repair is a top choice for homeowners. Customers praise their professionalism and effective solutions to moisture problems. They excel in both interior and exterior waterproofing, ensuring a dry environment. However, their availability can sometimes be limited due to high demand.

NV Waterproofing and Foundation Repair photo 1NV Waterproofing and Foundation Repair photo 2NV Waterproofing and Foundation Repair photo 3NV Waterproofing and Foundation Repair photo 4

Pros

  • High customer satisfaction
  • Expertise in various waterproofing methods
  • Reliable service

Cons

  • Limited availability
  • Potentially higher costs
Best forComprehensive waterproofing solutions
Service areaAlexandria, VA
Typical pricing$1,000 to $7,000
2
Best Value

Value Dry Basement Waterproofing

★★★★★4.9(298 reviews)
94Score

Value Dry Basement Waterproofing boasts a perfect 4.9 rating from 298 reviews, highlighting their affordability and effective service. Customers appreciate their attention to detail and the value for money they provide. They are particularly adept at basement sealing and moisture control. On the downside, some customers mention that response times could be improved.

Value Dry Basement Waterproofing photo 1Value Dry Basement Waterproofing photo 2Value Dry Basement Waterproofing photo 3Value Dry Basement Waterproofing photo 4

Pros

  • Affordable pricing
  • Quality workmanship
  • Good customer service

Cons

  • Slower response times
  • Limited service options
Best forBudget-friendly waterproofing solutions
Service areaAlexandria, VA
Typical pricing$500 to $3,000
3

NV Alexandria Basement Waterproofing

★★★★★5.0(7 reviews)
78Score

NV Alexandria Basement Waterproofing has a perfect rating of 5 from just 7 reviews, indicating strong initial customer satisfaction. Reviewers commend their quick response and thorough assessments. However, with such a thin review base, their long-term reliability remains promising but unproven. 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 initial assessments and quick service. It serves Alexandria, VA, with $1,000 to $5,000 pricing, and the honest trade-offs are very limited reviews and unproven long-term performance.

NV Alexandria Basement Waterproofing photo 1NV Alexandria Basement Waterproofing photo 2NV Alexandria Basement Waterproofing photo 3

Pros

  • Excellent initial ratings
  • Quick response times

Cons

  • Very limited reviews
  • Unproven long-term performance
Best forInitial assessments and quick service
Service areaAlexandria, VA
Typical pricing$1,000 to $5,000
Before you book

How to choose a waterproofing contractor in Alexandria

Selecting the right waterproofing contractor is crucial for effective and lasting solutions. Consider these key factors when making your choice.

Experience and Expertise

Look for contractors with a proven track record and extensive experience in waterproofing services.

Customer Reviews

Check online reviews to gauge customer satisfaction and the quality of service provided.

Services Offered

Ensure the contractor offers a range of waterproofing solutions that meet your specific needs.

Warranty and Guarantees

Inquire about warranties on services to protect your investment and ensure long-term effectiveness.

What it costs

What waterproofing costs in Alexandria

The cost of waterproofing services in Alexandria can vary based on the complexity of the job and the size of your property. Here are typical pricing tiers.

Interior Waterproofing$1,000 to $3,000 depending on the severity of moisture issues.
Exterior Waterproofing$3,000 to $7,000, influenced by the area needing treatment.
Basement Sealing$500 to $2,500, based on the extent of sealing required.
Drainage Solutions$2,000 to $5,000, contingent on the system's complexity.

Frequently asked questions

How much does waterproofing cost in Alexandria?

The cost typically ranges from $500 to $7,000, depending on the services required.

What factors affect the cost of waterproofing?

Factors include the type of waterproofing needed, the size of the area, and the severity of moisture issues.

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 Alexandria homes: Editor's Choice NV Waterproofing and Foundation Repair

The top choice for waterproofing in Alexandria is NV Waterproofing and Foundation Repair, renowned for their expertise and customer satisfaction. Following closely is Value Dry Basement Waterproofing, offering great value without compromising quality. Lastly, NV Alexandria Basement Waterproofing shows promise with perfect ratings, though their thin review base leaves some questions about long-term reliability.

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