- HEP Heat and Air
- NADCA-certified Technicians

NADCA-certified Technicians
NADCA-certified Technicians | Duct Cleaning | Heating and Air Conditioning | South Pittsburg
Breathe easier in South Pittsburg with HEP’s NADCA-certified technicians on your side. Our seasoned pros don’t just sweep the vents; they deploy industry-leading negative-air vacuums and agitation tools to dislodge stubborn dust, pollen, and pet dander hiding deep inside your HVAC system. From the moment we lay down protective drop cloths to the final before-and-after inspection, every step is designed to safeguard your home, your health, and your heating and air investment.
Regular duct cleaning restores peak airflow, lowers energy bills, and helps keep allergies at bay—allowing you to enjoy true Tennessee comfort all year long. Schedule a convenient appointment today and discover why neighbors across Marion County trust HEP for transparent pricing, white-glove service, and results you can feel with every breath.
FAQs
What does it mean for your technicians to be NADCA-certified, and why is this important for South Pittsburg homeowners?
NADCA (National Air Duct Cleaners Association) certification requires technicians to pass rigorous exams on HVAC system hygiene, follow a strict code of ethics, and use the ACR Standard—the industry’s benchmark for safe, effective duct cleaning. In South Pittsburg’s humid climate, mold, pollen, and coal-dust residue can collect quickly inside ductwork. Choosing a NADCA-certified team ensures the work is done with proven methods that protect both your HVAC equipment and your family’s health.
How often should I have my air ducts cleaned in South Pittsburg?
The EPA and NADCA recommend a full system cleaning every 3–5 years for most homes, but local factors can shorten that interval. If your property is near US-72 traffic, has pets, recent renovations, or family members with allergies or respiratory issues, consider cleaning every 2–3 years. Our technicians offer free inspections to determine the right schedule based on dust levels, microbial growth, and HVAC usage patterns specific to the Sequatchie Valley.
What are common signs that my ducts need professional cleaning?
• Persistent dust buildup shortly after cleaning surfaces • Musty or burning odors when the HVAC starts • Uneven airflow or rooms that never reach set temperature • Recent water damage or visible mold inside registers • Excessive allergy or asthma flare-ups when indoors • New rattling noises or debris blowing from vents If you notice any of these, call us for a camera inspection—there’s no charge if cleaning isn’t recommended.
What does your NADCA-compliant duct cleaning process include?
1. Pre-inspection with video scope and particulate counter 2. Placement of high-powered HEPA vacuums (negative-air machines) to create containment 3. Agitation of duct walls with rotating brushes and air whips sized for metal or flex ducts 4. Source removal of debris, followed by point-of-contact cleaning of supply/return trunks, registers, blower, evaporator coil, and drain pan 5. Optional EPA-registered antimicrobial fogging (safe for homes and businesses) 6. Post-clean verification video and written report, documenting that your system meets NADCA cleanliness benchmarks.
Will duct cleaning really improve indoor air quality and energy efficiency?
Yes. Removing dust, pet dander, fungal spores, and other contaminants reduces airborne particles that trigger allergies and respiratory issues. A clean heat exchanger and evaporator coil allow unrestricted airflow, letting your HVAC unit reach set temperatures faster and cycle off sooner—often cutting energy consumption by 5–15%. Many South Pittsburg clients also report fewer odors and longer filter life after cleaning.
How long will the service take and what should I do to prepare?
A typical single-family home (8–12 supply vents) takes 3–4 hours; larger homes or systems with heavy contamination may take up to 6 hours. To prepare: • Clear a 3-foot space around each register and the HVAC unit. • Secure pets in a separate room. • Plan to stay home—our team may ask you to approve before/after videos. We bring protective floor coverings and move lightweight furniture as needed. Once finished, it’s safe to run the system immediately.