Polaris’s mechanical engineers utilize technical expertise and detailed evaluations to analyze mechanical equipment and systems in various settings including residential, commercial, and industrial applications. We can perform causation analysis, code compliance or upgrade review, damage assessments, and preparation of repair scope. Our experts have vast experience identifying damage due to various causes including long-term wear-and-tear, exposure to environmental pollutants, hail, wind, fire, and flooding.
Polaris was engaged to evaluate a tankless water heater that failed shortly after installation, causing water damage throughout a residential structure in Texas. Polaris’s mechanical engineering expert observed that the flow sensor of the water heater had fractured, a piece of which was embedded inside the heating element. No damage was observed at the cold or hot water lines of the tankless heater or at the stainless-steel braided hoses. However, the cold-water line inlet was observed to be dislodged from the chassis.
Review of the installation manual for the tankless water heater revealed that two wrenches were required to properly install the supply line to the cold water line inlet. Specifically, one of the wrenches was to be used to tighten the connection, while the other was needed to hold the connection so the flow sensor would not become loosened or damaged. The use of two wrenches for such a connection is also generally accepted installation practice.
Polaris’s mechanical engineering expert concluded that the plumber that installed the water heater did not secure/stabilize the flow sensor during connection of the supply line. This improper installation resulted in overtightening of the plastic housing and a minor fracture at the exit of the flow sensor. The water pressure in the supply line and flow sensor worsened the fracture overtime, ultimately resulting in the failure which led to the leak and associated water damage.
“Their experts are knowledgeable and personable. And their reports are detailed, organized and easy to understand. Polaris has proven themselves to be a trustworthy partner.”
Leah Long joined Polaris Forensics in 2025 as the Director of Business Development and Marketing, bringing over 15 years of expertise in business development and client relationship management. She is passionate about community engagement, business expansion and strategic growth.
Leah excels at building strong partnerships and facilitating effective communication, ensuring long-term success for both clients and the company. Her ability to develop and nurture key relationships plays a vital role in Polaris Forensics’ continued growth and industry leadership.
Now, as an empty nester, Leah enjoys reading, traveling, attending concerts, and trying new restaurants. Movies and golf tournaments are another way she spends quality time with valued friends and family.
Parasar Gosain is a skilled civil and structural engineer with over five years of experience. He holds a bachelor’s degree in civil engineering from Tribhuvan University, Nepal, a master’s degree, and a Ph.D. in Civil Engineering from Florida International University. As a licensed Professional Engineer (PE), Parasar has extensive expertise in building inspections, structural assessments, and forensic investigations. In addition, he holds a Level II Thermographer certification and a Drone Pilot license, enabling him to conduct thorough and comprehensive investigations with advanced tools and techniques.
Parasar’s unique combination of advanced academic qualifications and hands-on experience allows him to deliver accurate, reliable engineering solutions for complex structural challenges, prioritizing safety, sustainability, and the long-term durability of every project.
Outside of work, he likes to spend time with his wife and friends and exploring different cuisines and new flavors.
