Negative Air Repair Services

What Is Negative Air?

At Leak Stoppers Inc, we specialize in negative air leak detection and repair across Suffolk County, Nassau County, and all of Long Island, using advanced diagnostics to identify airflow problems and deliver permanent solutions.

Negative air occurs when attic fans, restaurant fans, HVAC units, or escaping hot air create a vacuum inside a building. This vacuum pulls in fast-moving drafts, and when combined with tiny rain droplets (fog or mist), it can cause intermittent leaks that are difficult to trace. Rainwater is literally “sucked” into non-powered vents, air handlers, chimney stacks, and other openings.

Why Negative Air Causes Leaks

• Escaping hot air creates suction inside the building
• Drafts pull rainwater into vents, stacks, and openings
• Leaks appear intermittently, often only during fog, mist, or wind-driven rain
• Traditional roofing fixes fail because the root cause is airflow imbalance

Our thorough leak inspections and diagnostics pinpoint negative air issues and other visible roof problems, ensuring accurate repairs.

Our Negative Air Repair Solutions

Leak Stoppers Inc offers comprehensive services to eliminate negative air leaks:

• Airflow diagnostics to identify vacuum conditions in attics and HVAC systems
• Vent and stack sealing to stop rainwater intrusion
• Roof system integration to balance ventilation and prevent drafts
• Preventive maintenance to reduce future airflow-related leaks

Roof Coating Solutions

Negative air issues often occur in buildings with low-slope (flat) roofs. Many of these roofs already have two or more layers, and building code requires stripping down to the deck before adding another. This can cost $9–20+ per sq. ft. depending on size, height, and layout.

While Leak Stoppers Inc typically does not recommend roof coatings, in some unique cases, Leak Stoppers Inc may offer this as a cost-effective alternative:

• Roof coatings applied to existing membranes at a reduced cost
• Manufacturer warranties up to 20 years on labor and coating
• Extended roof life without disruptive tear-offs
• Energy-efficient reflective coatings to reduce heat buildup

This solution can potentially save building owners thousands while protecting against leaks caused by negative air and other roof failures.

Please note: Roof coatings are very rarely offered and are only considered for very specific situations. Leak Stoppers Inc typically does not recommend roof coatings, and when they are used, it must be understood that they are used as temporary solutions until a proper roofing system can be installed.

Why Choose Leak Stoppers Inc

When it comes to negative air repairs, Leak Stoppers Inc stands out as the preferred choice in Long Island. Here's why our clients trust us:

• 30+ years of leak repair expertise
• Licensed and insured in Suffolk & Nassau Counties
• Specialists in negative air diagnostics and flat roof coatings
• Lifetime guarantee on leak repairs
• Affordable financing options available
• Full-service roofing company working with all insurance providers
• Contact Leak Stoppers Inc Today

Don’t let negative air compromise your building. Call Leak Stoppers Inc for expert negative air repair and roof coating services in Suffolk County, Nassau County, and all of Long Island. Our team delivers fast, reliable solutions backed by decades of experience.

Contact Us

Don't let air quality issues compromise the safety and comfort of your property. Leak Stoppers Inc is here to provide professional negative air repair services tailored to your specific needs. Our team of experienced technicians is ready to assess your situation and implement effective solutions. Whether you're dealing with mold, asbestos, or general air quality concerns, we have the expertise to handle it all. Serving Suffolk County, Nassau County, and all of Long Island, we're committed to ensuring the health and safety of your environment. Reach out to Leak Stoppers Inc today and let us help you breathe easier with our comprehensive negative air repair services.