Atlanta’s geology and climate create conditions that make basement and crawl space waterproofing a genuine necessity for a significant portion of the metro area’s housing stock. The red clay soil that dominates much of the Atlanta region has high shrink-swell characteristics, expanding during wet periods and contracting in dry ones, which creates lateral pressure against basement walls and contributes to foundation movement and cracking over time. Combined with Atlanta’s average annual rainfall of roughly 49 inches — much of it falling in heavy, concentrated events during spring and summer — the demand for effective moisture management in below-grade spaces is substantial and persistent. Neighborhoods in the older in-town areas, including parts of Decatur, East Atlanta, and Kirkwood, have significant concentrations of homes with unfinished basements and crawl spaces built before modern moisture barriers were standard practice. Even in newer construction across the northern suburbs, improper grading, inadequate downspout extensions, and Atlanta’s intense storm events can drive water against foundations and into crawl spaces in ways that require professional remediation.
When selecting a waterproofing company in Atlanta, distinguish between firms that address symptoms — pumping water out after it enters — and those that address causes through drainage management, grading correction, and exterior waterproofing. A thorough company will inspect the site, assess the source and path of water intrusion, and recommend a solution that addresses the root cause rather than simply managing the recurring problem. Verify that any company you consider carries general liability insurance and provides a written warranty on their work, and ask specifically whether the warranty is transferable to future owners — a meaningful benefit if you plan to sell the home. Red flags include companies that recommend extensive excavation and exterior waterproofing without first exhausting interior drainage solutions, or companies that push large-scope projects during a single visit without providing time to review proposals or get competing bids.
Top Waterproofing Companies in Atlanta
1. AquaGuard Foundation Solutions
Founded: 1995
Address: 875 Pickens Industrial Drive, Marietta, GA 30062
Phone: (770) 874-2669
Website: https://www.aquaguard.net
Hours: Monday through Saturday, 8:00 AM to 11:00 PM; Sunday, 10:00 AM to 11:00 PM
Services:
- Basement waterproofing
- Crawl space encapsulation and repair
- Foundation repair
- Concrete lifting and leveling
- Structural repairs
- Sump pump installation
About: Founded in 1995 by Tom DiGregorio on principles of honesty and customer care, AquaGuard Foundation Solutions built its reputation across the Atlanta market through consistent, technically thorough work on basement waterproofing and foundation repair projects. The company was acquired by Groundworks Companies in December 2020, bringing additional resources and technical support to the Atlanta team while preserving local operations and service commitments. AquaGuard operates multiple locations across the metro area including offices in Marietta, East Point, Tyrone, and Athens, giving them coverage across the full Atlanta region. Customer reviews consistently highlight the technical expertise of their inspectors and a transparent approach to diagnosing problems and recommending appropriately scoped solutions.
2. Allstate Waterproofing Contractors
Address: 2231 Pinecliff Drive, Atlanta, GA 30345
Phone: (770) 938-2238
Hours: Monday through Friday, 9:00 AM to 5:00 PM
Services:
- Basement waterproofing
- Foundation repair
- Crawl space repair and encapsulation
- Moisture control systems
- Sump pump installation and repair
- Drainage contracting
- Free inspections
About: Allstate Waterproofing Contractors serves more than 20 counties in and around the Atlanta area, providing waterproofing and foundation moisture control services with free inspections and interest-free financing for qualified customers. Their service area covers the full Atlanta metro region, making them accessible to homeowners across the northern suburbs, in-town neighborhoods, and the southern metro. The combination of free inspections and financing options removes two common barriers that cause homeowners to delay addressing moisture problems, which typically worsen and become more expensive to remediate when left unaddressed. Allstate’s long-standing presence in the Atlanta market reflects a customer base built on referrals and repeat engagement from homeowners managing ongoing moisture management needs.
3. All-American Waterproofing
Address: 2550 Fairburn Road SW, Atlanta, GA 30331
Hours: Monday through Friday, 7:30 AM to 4:30 PM
Services:
- Basement waterproofing
- Crawl space waterproofing and encapsulation
- Pressure relief systems
- Sump pump installation
- Free customized appraisals
About: All-American Waterproofing has been solving water seepage and structural moisture problems throughout the metro Atlanta area since 1961, giving the company over six decades of continuous experience in the local market. The family-owned firm provides free customized appraisals covering pressure relief systems, crawl space treatments, sump pump installation, and other below-grade moisture remediation approaches. Their focus on quality materials and workmanship, combined with one of the longest operating histories of any waterproofing contractor in the Atlanta region, makes All-American a well-established resource for homeowners dealing with chronic moisture problems. The company’s west Atlanta location provides direct access to the southwest and west metro areas.
Frequently Asked Questions
Q: How do I know if my Atlanta home needs waterproofing?
A: Common signs that waterproofing attention is needed include visible water stains or efflorescence (white mineral deposits) on basement or crawl space walls, standing water or persistent dampness after rain events, musty odors in below-grade spaces, visible mold or mildew, and cracks in basement walls that show evidence of water infiltration. In Atlanta specifically, homes on sloped lots in clay-heavy soils are particularly susceptible to hydrostatic pressure against foundation walls during heavy rainfall. A professional inspection by a waterproofing contractor — many of which are free — is the most reliable way to assess whether intervention is needed and what type of approach is most appropriate for your specific conditions.
Q: How much does basement or crawl space waterproofing cost in Atlanta?
A: Waterproofing costs in Atlanta vary significantly based on the type of system, the severity of the moisture problem, and the size of the space being treated. Interior drainage system installation for a standard basement typically ranges from $4,000 to $12,000, while crawl space encapsulation projects generally run from $3,000 to $8,000 depending on size and condition. Exterior waterproofing, which involves excavation around the foundation and application of a waterproof membrane, is more expensive and typically ranges from $10,000 to $30,000 or more. Getting two or three written estimates from licensed contractors is the best way to understand fair pricing for your specific situation.
Q: What is the difference between interior and exterior waterproofing in Atlanta?
A: Interior waterproofing systems manage water after it enters below-grade spaces, channeling it through drainage systems to a sump pump for removal. These systems are less expensive and less disruptive to install than exterior approaches, and they are effective at controlling the symptom of water intrusion. Exterior waterproofing addresses moisture at its source by applying waterproof membranes to the outside of the foundation wall and managing drainage before water can contact the structure. Exterior work requires excavation around the foundation and is significantly more expensive, but it can be the more appropriate solution when hydrostatic pressure or foundation wall deterioration is the primary concern. A reputable Atlanta waterproofing contractor will assess both approaches and recommend the one that best addresses your home’s specific conditions.
Conclusion
Atlanta homeowners dealing with basement or crawl space moisture have access to experienced, locally based waterproofing contractors with long operating histories in the region. AquaGuard Foundation Solutions has served the Atlanta market since 1995 with technical expertise in waterproofing, foundation repair, and crawl space encapsulation across multiple metro locations. Allstate Waterproofing Contractors offers free inspections and financing options backed by service coverage across more than 20 Atlanta-area counties. All-American Waterproofing brings over 60 years of continuous Atlanta-area experience to both interior and exterior moisture control projects. Contact any of these companies for a free inspection and assessment of your waterproofing needs.