Find trusted waterproofing professionals serving Philadelphia. All contractors are independently researched and certified.
Only companies with a Certified Best Pick® badge meet our strict satisfaction & licensing requirements and are eligible for the Best Pick Guarantee.
Only companies with a Certified Best Pick® badge meet our strict satisfaction & licensing requirements and are eligible for the Best Pick Guarantee.
Groundworks has over 25 years of experience. If your basement or crawl space has moisture, humidity, or mold issues, we can provide a solution. With local experts and nationally backed warranties available, we are the most trusted and reputable contractor for your basement and crawl space repairs.
Jamison is an authorized GrateProducts contractor, which includes exclusive access to innovative products, training, and support from the manufacturer. We offer a patented, closed-basement drainage system installed by certified technicians. A healthy basement or crawl space means a healthy home for you and your family. Jamison Basement Waterproofing offers foundation repair and basement and crawl space waterproofing services for residential and commercial customers.
At Basement Waterproofing Specialists, our family's foremost objective is to provide you with award-winning basement waterproofing, foundation repair, mold removal, crawl space waterproofing and encapsulation, and exterior and interior drainage services that create a safe and healthy environment for you and your family. Basement Waterproofing Specialists offers basement and crawlspace waterproofing; drainage systems; mold and mildew inspection and remediation; basement exterior entrance installation; stone, block, cement, and brick foundation structural repair and replacement; basement window and window well repair; and free estimates.
Our mission is to be relentless in the pursuit of constant improvement for our team and customers. We take pride in the exceptional customer experience we provide each homeowner we meet with. We offer superior products and transferable warranties to every homeowner looking for peace of mind when it comes to their home. Quality 1st Basement Systems provides basement waterproofing, foundation and crawl space repair, and concrete lifting and leveling services.
At Worthington Basement Heath Systems we take education very seriously, so our mission is to create pathways to improve lives through basement health education. We are a third-generation company whose top priority is your family's well-being! WBHS specializes in basement health and waterproofing services.
Real homeowners looking for waterproofing in your area
"Basement waterproofing"
"Browsing"
"Basement has a sump pump that takes care of most of the basement. The mechanical room has water coming up through the fl..."
"Replace basement casement window."
"Inspection of sump pump and back up battery."
"External leak in corner of rec room wall likely from foundation."
"Looking for a quote on waterproofing a basement, with the intent to finish it later down the line."
"Looks like there is a water leakage from outside seeping under the laminate flooring in our ground level basement. Would..."
"Under the very heaviest rains, if the water level around our house rises significantly, water flows through an opening i..."
"We're moving into a new place and in the basement the parging is peeling. It needs to be removed and repainted, and the..."
"The sales call was very professional and pleased with quote installation services went smoothly and happy"
"Excellent company from sales to completion. Good communication with each other and me"
"They were efficient and professional. They went above and beyond with the scope of work and what needed to be done."
Every Best Pick company in Philadelphia is independently researched and certified annually. We analyze thousands of customer reviews, verify licensing and insurance, and confirm each company meets our strict qualification standards.
We conduct extensive satisfaction surveys and analyze thousands of customer experiences annually.
Verified by
Independent Research
Companies earn Best Pick certification through performance alone. Only businesses with 80%+ recommendation rates qualify.
Best Pick status isn't permanent. Every certified company must re-qualify annually.
Licensed
Insured
Verified
We stand behind our certified companies with a financial guarantee up to $2,500.
Protected
Financial guarantee included
Only waterproofing companies that meet our strict standards earn Best Pick status.
Waterproofing companies must maintain a 4.0+ rating and an 80% recommendation rate.
Current state contractor license verification and general liability insurance for waterproofing work
Minimum 1 year in business with established local presence
Maintain active business registration and in good standing with the state
Consistent waterproofing service quality across all projects
Must re-qualify every year through new research
Common questions about Certified Best Pick® waterproofing companies in Philadelphia, PA
Best Pick Certified Waterproofing companies in Philadelphia, PA have earned their status through independent consumer research—not paid placement. To qualify, a company must meet strict standards:
Certification is re-verified annually, ensuring continued performance.
No. Waterproofing companies cannot buy Best Pick Certification, improved ratings, or better placement. Our research team independently evaluates companies based on customer satisfaction, licensing, insurance, and business stability—before any business relationship exists.
Companies that earn certification pay a participation fee after qualifying, which covers the cost of ongoing research and publication. This fee has no influence on whether a company qualifies or how they appear in our directory.
The Best Pick Guarantee provides financial protection—up to $2,500 in labor costs—if a Certified Best Pick Waterproofing company fails to deliver on their commitments.
To be eligible:
This guarantee applies only to Certified Best Pick companies, not Standard Pros. Full terms are available on our guarantee page.
