CityvettedThe 10 Best Waterproofing Contractors in Charleston, SC
Charleston's waterproofing scene features a standout leader with a perfect score, while others offer varying levels of service quality. Here's how to choose wisely.
Waterproofing is essential in Charleston, where humidity and heavy rains can wreak havoc on homes. A solid waterproofing solution not only protects your investment but also ensures a healthier living environment.
In evaluating the best waterproofing contractors in the area, we examined 10 providers, focusing on their ratings and review counts. This list is built on real customer feedback, reflecting the quality and reliability of each service.
Our top picks
At a glance · three categoriesAll 0, compared
Data as of June 13, 2026| Business | Vetted Score | Google rating | Reviews | Best for |
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How we evaluated all 10 waterproofing contractors.
We assessed each waterproofing contractor based on their Vetted Score, which combines customer ratings and the number of reviews. Our team does not accept payment for placement, ensuring a fair and unbiased ranking.
To keep our recommendations relevant, we refresh our evaluations monthly. This way, you can trust that the information you receive is current and based on the latest customer experiences.
The Vetted Score: six weighted factors
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 orderHow to choose a waterproofing contractor in Charleston
Selecting the right waterproofing contractor requires careful consideration of their reputation and service offerings. Here are key factors to guide your decision.
Check the review count
More reviews generally indicate a contractor's experience and reliability. Look for businesses with a solid number of satisfied customers.
Evaluate their ratings
Pay attention to the overall star rating. A higher rating suggests better service quality, especially when comparing similar providers.
Consider specialty services
Some contractors offer specialized solutions tailored to Charleston's unique climate challenges. Ensure they can meet your specific needs.
What waterproofing costs in Charleston
Waterproofing costs can vary based on the extent of the work needed and the specific services offered. Here’s a breakdown of typical pricing tiers in Charleston.
Frequently asked questions
How much does waterproofing cost in Charleston?
Pricing for waterproofing services in Charleston typically ranges from $1,500 to $5,000, depending on the extent of the work needed.
What factors influence the cost of waterproofing?
Factors include the size of the area to be waterproofed, the type of solution required, and any necessary repairs to existing structures.
How often is this ranking updated?
We re-run the full analysis monthly with fresh review data. Last updated June 13, 2026.
For most Charleston homes: <strong>Crawlspace Medic of Charleston</strong>
The strongest choice is Crawlspace Medic of Charleston, with a perfect 5-star rating from 255 reviews. This solid track record demonstrates their reliability and quality of service. Following closely is Lowcountry Crawlspaces LLC, which holds a commendable 4.8 rating from 152 reviews, proving their worth for many homeowners. Lastly, Groundworks Foundation Repair Charleston comes in with a robust 4.7 rating and 583 reviews, making them a solid option for those needing extensive foundation work.