Business Details
Trusted Commercial Waterproofing & Restoration Services
CWI Commercial Waterproofing has dedicated over 35 years to addressing structural and water intrusion challenges for buildings and their occupants. Our mission centers on safeguarding client investments through durable, aesthetically pleasing solutions tailored to commercial properties. With a reputation built on expertise and reliability, we specialize in diagnosing complex issues and delivering repairs that minimize disruption while prioritizing safety, efficiency, and client satisfaction. Our teams diagnostic precision and craftsmanship are complemented by a strong safety record and a commitment to courteous service. We serve building owners, managers, and engineering firms across the Mid-Atlantic region, focusing on long-term partnerships rooted in trust and proven results.Our approach begins with comprehensive inspections to identify root causes, followed by customized repair strategies executed with minimal impact on building operations. From historic restorations to modern high-rises, our work reflects a deep understanding of structural integrity and client needs. We emphasize transparency in communication and maintain rigorous quality standards, as evidenced by our decades-long relationships with repeat clients. Our regional success in specialized construction underscores our dedication to excellence in every project. By combining technical expertise with a client-first philosophy, we ensure buildings remain structurally sound and functional for years to come.
Services
Waterproofing
Masonry Repair
Facade Restoration
Concrete Restoration
Plaza Deck Repair
Garage Repairs
Building Inspections
Expansion Joint Replacement
Balcony Repair
Caulking
Highlights and features
- We have over 35 years of experience in commercial waterproofing and restoration.
- Our team delivers proven solutions for complex structural and water intrusion challenges.
- We prioritize safety, efficiency, and minimal disruption during projects.
- Our client relationships span decades, reflecting consistent quality and reliability.
- We maintain rigorous quality standards and transparent communication practices.
Services
Waterproofing
Our waterproofing solutions address both immediate water intrusion issues and long-term structural protection. We specialize in below-grade waterproofing, plaza decks, and parking structures, using advanced materials to ensure durability. Our approach combines diagnostic precision with tailored repair strategies for commercial properties.
Masonry Repair
We restore masonry integrity through brick and block replacement, stabilization, and repointing. Our techniques preserve historic structures while meeting modern safety standards. Projects include high-rise facades and heritage buildings requiring specialized craftsmanship.
Facade Restoration
Our facade restoration services include cleaning, sealing, and repairing concrete, stone, and masonry exteriors. We address weathering damage and structural weaknesses while maintaining aesthetic continuity. Solutions are designed for longevity in commercial environments.
Concrete Restoration
We repair and reinforce concrete structures including balconies, decks, and parking garages. Our methods address spalling, cracking, and corrosion while ensuring safety compliance. Projects often involve occupied buildings requiring phased execution.
Plaza Deck Repair
Our plaza deck services include waterproofing membrane replacement, coating application, and drainage system upgrades. We minimize disruptions to tenants during repairs while extending the lifespan of elevated deck systems in commercial complexes.
People
Karl DiPietro
President
Karl DiPietro leads CWI with strategic vision, overseeing operations and client relations. His leadership emphasizes quality standards and long-term client partnerships, drawing on decades of industry experience to guide the company's growth and service excellence.
Jim Ninteman
Regional Manager
Jim Ninteman manages regional projects, ensuring alignment with CWI's quality and safety standards. His expertise in project execution and client communication supports successful delivery of complex restoration initiatives across diverse commercial properties.
Marty Nieratko
Operations Manager
Marty Nieratko directs day-to-day operations, coordinating resources to maintain efficiency and adherence to project timelines. His focus on operational excellence ensures seamless execution of restoration projects while upholding safety protocols.
Rudy Gumucio
Senior Project Manager/Estimator
Rudy Gumucio oversees project planning and cost estimation, leveraging technical expertise to develop accurate scopes of work. His attention to detail ensures clients receive precise proposals aligned with their structural repair needs.
Arnoldo Reyes
Superintendent
Arnoldo Reyes supervises on-site work execution, maintaining quality control and safety compliance. His hands-on leadership ensures projects meet CWI's standards while minimizing disruptions to building occupants during restoration processes.
Questions
What types of buildings do you work on?
We specialize in commercial properties including high-rises, historic buildings, hotels, and condominiums across the Mid-Atlantic region.
How do you minimize disruptions during projects?
Our team coordinates phased work schedules and uses containment systems to maintain safe, functional spaces for occupants during repairs.
Can you handle emergency waterproofing repairs?
While we focus on planned projects, we prioritize urgent issues through our standard service channels for timely resolution.
Do you provide maintenance programs?
Yes, we offer inspection and maintenance plans to proactively address potential issues and extend building lifespan.
How do you ensure project quality?
We implement rigorous quality checks at every stage, supported by our 35+ years of experience and safety-certified crews.
What areas do you serve?
We operate primarily in Washington, D.C., Virginia, Pennsylvania, and Maryland, with experience in regional building codes and conditions.
