Local services · Charleston, SC/Updated June 13, 2026
The Best Waterproofing Contractors in Charleston, SC
Protect your home from water damage with the best waterproofing contractors in Charleston. Our top picks deliver quality and reliability.
MHMaya Hendricks · Home Services Editor Updated June 13, 2026 · Next review July 2026
Editorially independent3 companies evaluated
cover story
★ Editor's ChoicePalmetto Crawlspace
96Score
Latest update · June 13, 2026: Initial ranking published. 3 Charleston-metro waterproofing businesses evaluated, top 3 ranked by Vetted Score.
Waterproofing is vital for protecting homes in Charleston from the region's humid climate and potential flooding issues. Proper waterproofing prevents structural damage and mold growth, ensuring a safe living environment.
We evaluated local waterproofing contractors based on customer reviews, service quality, and overall reputation. Our list features the best options to help you make an informed decision for your home.
3providers evaluated in Charleston
4.70average rating across the field
71customer reviews analyzed
Cityvetted analysis of public Google review data, updated June 13, 2026.
To create this ranking, we analyzed numerous customer reviews and ratings, focusing on both the quality of service and customer satisfaction. We ensure that no business pays for placement in our rankings, maintaining independence and transparency.
Our rankings are refreshed monthly to provide the most accurate and up-to-date information. This month, we highlight the top waterproofing contractors in Charleston based on the latest data.
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.
Palmetto Crawlspace boasts a stellar rating of 5 from 19 reviews. Customers praise their professionalism, quick response times, and effective waterproofing solutions. They are known for providing thorough assessments and tailored solutions, making them the top choice for homeowners concerned about water damage. However, some may find their services on the higher end of the pricing spectrum.
Pros
Outstanding customer service
Highly rated for effectiveness
Tailored solutions for each client
Cons
Higher price point compared to competitors
Limited service areas
Best forHomeowners needing reliable waterproofing solutions
Crawl Space Avengers has a solid rating of 4.7 from 12 reviews, with many customers highlighting their affordability and effective service. They excel in providing value for money while addressing waterproofing needs. While they may not have the same level of experience as some competitors, their commitment to customer satisfaction makes them a strong contender.
Crawlspace ER Holdings LLC has a rating of 4.4 based on 40 reviews, showcasing their experience in the waterproofing industry. Customers appreciate their thorough inspections and effective treatment plans. While they have a larger review base, some users noted inconsistencies in service quality. This makes them a solid choice, but results can vary.
Pros
Experienced with a large review base
Thorough inspections
Effective treatment plans
Cons
Inconsistencies in service quality
Some negative feedback on follow-up
Best forHomeowners seeking experienced contractors
How to choose a waterproofing contractor in Charleston
Choosing the right waterproofing contractor is crucial for the long-term safety and integrity of your home. Here are key factors to consider when making your selection.
Experience and Expertise
Look for contractors with proven experience in waterproofing and a solid reputation within the community.
Customer Reviews
Check online reviews to gauge customer satisfaction and the overall quality of service provided.
Warranty and Guarantees
A reliable contractor should offer warranties on their work, ensuring peace of mind and protection against future issues.
Cost Estimates
Obtain multiple estimates to compare pricing, but remember that the cheapest option is not always the best in terms of quality.
What it costs
What waterproofing costs in Charleston
The cost of waterproofing in Charleston can vary based on several factors, including the size of the area being treated and the specific services required.
Basic WaterproofingTypically ranges from $1,500 to $3,500 for small areas or simple treatments.
Moderate WaterproofingFor larger spaces or more complex solutions, costs can range from $3,500 to $7,000.
Extensive WaterproofingMajor projects involving significant repairs or renovations may cost $7,000 to $15,000 or more.
Maintenance and InspectionsRegular maintenance checks can cost between $150 and $500 depending on the services provided.
Frequently asked questions
How much does waterproofing cost in Charleston?
Waterproofing costs can range from $1,500 to $15,000, depending on the size and complexity of the project.
What should I look for in a waterproofing contractor?
Consider their experience, customer reviews, warranties, and pricing before making a selection.
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 Charleston homeowners: Palmetto Crawlspace
Our top pick is Palmetto Crawlspace, known for their exceptional service and effectiveness. Following closely are Crawl Space Avengers, offering great value for budget-conscious homeowners, and Crawlspace ER Holdings LLC, providing experience and solid solutions.
Cityvetted
