F.L.G. Home
Performance LLC
A data-driven Home Performance company solving whole-house comfort, health & safety, and high energy bill issues. We don’t guess—we test, diagnose, and deliver real solutions.
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F.L.G. Home
Our Approach
At F.L.G. Home Performance LLC, we take a whole-house approach to solving comfort, air quality, and energy efficiency problems. As BPI-trained technicians, we use specialized diagnostic tools and proven building science—not band-aid fixes—to identify root causes and design effective solutions.
We take pride in being the company homeowners call as a last resort—because we don’t rely on assumptions. We test, measure, analyze, and then recommend the right solutions for healthier, more efficient homes.
Blower Door Testing
Measure air leakage and identify comfort and energy loss issues.
Duct Tightness Testing
Evaluate duct leakage that affects HVAC performance and efficiency.
Air Quality Testing
Assess indoor air quality factors impacting health and safety.
Healthy Home Evaluations
Whole-house assessments focused on comfort, safety, and wellness.
HVAC Load Calculations
ACCA Manual J, D, and S certified load calculations for properly sized equipment.
Why Choose F.L.G.?
BPI (Building Performance Institute) trained technicians
Specialized diagnostic testing—not guesswork
Whole-house, building-science-based solutions
Trusted by homeowners when others can’t solve the problem
Passionate professionals who truly love this industry
Stop Guessing. Start Testing.
Discover real answers to comfort, air quality, and energy problems.
F.L.G. Home Performance LLC
45 Avenue D
Ronkonkoma, NY 11779-1983
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