Trusted Mold Testing and Environmental Inspections on Long Island for 30 Years

Four out of five homes contain at least one environmental hazard that can impact your health. RTK’s experts are the first call you should make to identify and address the issue. 

For 30 years, business owners, commercial property managers, homeowners, insurance adjusters, real estate professionals, and businesses throughout Long Island, New York—including Nassau and Suffolk counties, Babylon, Islip, Montauk, Manhasset, Old Westbury, and the Hamptons—have trusted RTK for reliable environmental testing services. 

Using cutting-edge technology and following the latest industry standards, our certified inspectors thoroughly assess your property—including the physical structure, indoor air, water supply, and soil—for mold, lead, asbestos, radon, and other environmental concerns. 

RTK Saves You from Unnecessary Repairs 

Because RTK specializes exclusively in environmental testing and consulting—not remediation—you can trust that our assessments are unbiased and accurate. If we detect an issue, you hire an independent remediation firm. Once the work is complete, we return to verify the job was done correctly and provide guidance on preventing future problems. 

Serving Long Island and the greater tri-state area, RTK Environmental is a leader in environmental testing and consulting. Our professionals are certified, licensed, and fully insured. 

Long Island Mold Testing Services 

Mold can pose serious health risks. Inhaling mold spores can lead to asthma, chronic allergies, headaches, fatigue, skin rashes, throat and eye irritation, wheezing, and other respiratory problems. Mold spreads when disturbed, releasing airborne spores that can cause cross-contamination.  

It often results from moisture issues like ice dams, roof leaks, basement flooding, burst pipes, hurricane damage, poor drainage, and high humidity. Mold frequently hides behind walls and ceilings, making professional testing essential. 

Toxic Mold 

Toxic mold is even more hazardous, as its spores contain harmful mycotoxins. Protect your family’s health by hiring an experienced professional to locate and identify mold in your home or business. Contacting RTK is your first step toward a safer environment. 

Long Island NY Asbestos Inspection & Testing 

Asbestos exposure is a serious health risk—even inhaling a few fibers can lead to lung cancer and other diseases. If your property was built before 1980, schedule an asbestos inspection before renovations. Our licensed inspectors, project designers, and management planners are certified by the New York State Department of Health and accredited under the federal Asbestos Hazard Emergency Response Act. We specialize in detecting asbestos and overseeing its safe removal. 

Our asbestos inspection process includes: 

• Conducting a comprehensive site survey to identify asbestos-containing materials. 

• Performing bulk, air, and soil sampling. 

• Providing a detailed report on the location, quantity, and condition of asbestos-containing materials. 

• Developing a prioritization plan if full removal isn’t feasible. 

• Creating an asbestos abatement plan for your chosen third-party remediation company. 

• Conducting asbestos clearance testing to confirm cleanup meets EPA standards. 

Long Island Indoor Air Quality Testing 

Indoor air pollution is often caused by everyday household and office products. According to the U.S. Environmental Protection Agency, indoor pollutant levels can be 25 to 100 times higher than outdoor levels. Do you know what’s in the air you breathe? 

RTK Environmental identifies hazardous chemicals in your home, business, or office, including radon, VOCs, mold, carbon monoxide, off-gassing from carpets and furniture, and particles from furnaces and wood-burning stoves. We also test for common asthma triggers like dust mites and insect allergens. 

Our customized investigations pinpoint the sources of indoor air quality issues. We provide a detailed report with actionable recommendations for improving air quality. Once remediation is completed, we verify the effectiveness of the solution. Because RTK strictly provides environmental testing and consulting—not remediation—you can trust our assessment to be accurate and unbiased. 

Long Island Certified Lead Inspection 

Before renovating, remodeling, or purchasing a home built before 1978, schedule a lead inspection. Lead poisoning remains the most preventable childhood disease in the U.S. Children can easily ingest lead from contaminated paint chips, tap water, dust, and soil. 

Many homes in Long Island were built before the 1978 lead paint ban, meaning older properties—especially those along the Long Island Sound—may still contain lead paint. Lead dust can accumulate over time or be disturbed during renovations, increasing exposure risks. Before you proceed with construction, ensure your home is lead-safe. 

The U.S. Environmental Protection Agency warns that home test kits are not always reliable. Protect your family by hiring a certified lead expert. Before selecting a contractor, confirm they are trained in lead-safe work practices to safeguard your family’s health.