Commercial Waterproofing
Comprehensive commercial waterproofing services for roofs, walls, foundations, and below-grade structures.
About Commercial Waterproofing
Water intrusion is the single greatest threat to commercial building integrity, and it attacks from every direction, not just through the roof. Edison Roofing Contractor provides comprehensive commercial waterproofing services across Middlesex County that protect your building envelope from roof to foundation. Our waterproofing expertise extends beyond roofing to include parapet wall waterproofing, masonry sealing, expansion joint systems, plaza deck waterproofing, parking deck coatings, and below-grade foundation waterproofing. Many commercial buildings experience water intrusion that appears to be a roof leak but actually originates at parapet walls, window head flashings, or masonry joints above the roof line. Misdiagnosing these issues as roof leaks leads to repeated failed roof repairs while the actual water entry point continues causing damage. Our diagnostic approach traces water to its true point of entry before recommending solutions. We apply liquid-applied membranes, sheet membranes, cementitious coatings, injection systems, and crystalline waterproofing products selected for each application based on substrate type, water pressure conditions, and accessibility for future maintenance. For occupied buildings with active water infiltration, we offer negative-side waterproofing solutions that can be applied from inside the building when exterior access is not possible. Every waterproofing project begins with a thorough investigation of water pathways, a clear diagnosis of the entry points, and a solution designed to address the cause rather than the symptoms. Protect your building from the ground up.
Our Commercial Waterproofing Process
Water Intrusion Investigation
We trace water infiltration to its actual point of entry using visual inspection, water testing, and diagnostic techniques that identify the real source, not just the visible symptom.
Waterproofing System Design
We specify the appropriate waterproofing system based on the substrate, water pressure, exposure conditions, and accessibility requirements for each area of your building.
Surface Preparation
Substrates are cleaned, repaired, and prepared to ensure proper adhesion of the waterproofing system. Cracks, joints, and penetrations receive specialized pre-treatment.
Waterproofing Application
The specified waterproofing system is applied by trained technicians following manufacturer protocols for material mixing, application thickness, curing time, and environmental conditions.
Testing and Quality Assurance
Completed waterproofing is tested with water, inspected for coverage and adhesion, and documented. Warranty registration and maintenance guidelines are provided.
Materials We Use
Benefits of Commercial Waterproofing
Building Types We Serve
Commercial Waterproofing FAQ
How do you determine where water is actually entering our building?
We use a systematic diagnostic approach that traces water to its actual entry point rather than assuming the visible leak location is where water enters the building. Water can travel significant distances inside walls, along structural members, and through insulation before appearing as a stain or drip. Our investigation includes exterior visual inspection, controlled water testing at suspected entry points, moisture meter readings at interior surfaces, and review of building construction details. We often discover that what appears to be a roof leak is actually water entering through a parapet wall, window head flashing, or masonry joint above the roofline. Accurate diagnosis saves you money by ensuring repairs address the actual problem. Schedule a water intrusion investigation today.
What is negative-side waterproofing and when is it needed?
Negative-side waterproofing is applied to the interior surface of a wall or floor, the opposite side from where water pressure is coming from. It is used when exterior access to the waterproofing surface is not possible, such as below-grade walls adjacent to neighboring buildings, interior walls of occupied basement spaces, or foundation walls under adjacent sidewalks. Negative-side systems include crystalline waterproofing that penetrates into the concrete to block water at a molecular level, cementitious coatings that bond to interior surfaces, and injection systems that fill cracks from inside. While positive-side exterior waterproofing is always preferred when accessible, negative-side solutions provide effective waterproofing for situations where excavation is impractical or impossible. Contact us if you have water issues in spaces without exterior access.
How much does commercial waterproofing cost?
Commercial waterproofing costs vary widely based on the type of work, the system specified, access conditions, and the extent of surface area. Roof-level waterproofing like parapet wall coating typically costs five to ten dollars per square foot. Plaza deck and parking deck waterproofing ranges from eight to twenty dollars per square foot depending on the system and traffic requirements. Below-grade exterior waterproofing with excavation can cost twenty to forty dollars per linear foot of wall. Interior negative-side systems are generally less expensive than exterior solutions because they avoid excavation costs. We provide detailed, itemized estimates after completing our water intrusion investigation so you know exactly what the problem is and what the solution costs. Call us to schedule your waterproofing assessment.
Commercial Waterproofing in Middlesex County
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Water damage is cumulative and accelerating. The longer water infiltrates your building, the more extensive and expensive the repairs become. Act before mold takes hold.
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