Duct Leak Detection in Greenville & Upstate SC

Serving Upstate South Carolina with trusted home comfort solutions since 1970.
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Ductwork is a vital part of your HVAC system. It provides a path for cooled or heated air to reach each room and a return flow for your AC/heater to repeat the process. However, a duct leak can reduce efficiency and have other unwanted effects. These can include higher energy bills, reduced comfort, and problems with indoor air quality (IAQ).

The trained and licensed HVAC professionals at Waldrop are experts in leak detection. They also provide high-quality IAQ services in Greenville and Spartanburg Counties. Every solution we deliver resolves leakage permanently, along with the comfort and IAQ concerns it can cause.

Two Waldrop plumbers inspecting duct leak.

Duct Leak Testing

If there’s a duct leaking in your home, you may notice temperature fluctuations from room to room, increased dust, moldy odors from vents, pest infestations, and odd noises. You may also experience increased allergy and respiratory symptoms. When any of these occur, Y’all Call Wally to perform duct leak testing.

A visual inspection of ductwork can help spot holes, tears, gaps between connections, or patches for previous leaks. If you can feel air movement at a duct joint when the HVAC unit is on, there is a leak. An HVAC technician uses a more sophisticated process. It involves sealing all vents except one, sending pressurized air through your ductwork, and measuring the pressure at the unsealed vent; a pressure drop means a leak is present.

Additional Duct Services

Aside from finding duct leakage, Waldrop takes any necessary steps to improve your ductwork. Our technicians use the latest tools and methods to provide:

  • Air Duct Cleaning: Air duct cleaning isn’t required or recommended regularly, but it can help reduce air pollution in your home. Cleaning HVAC ducts can eliminate dust, pollen, mold, bacteria, pesticides, and volatile organic compounds. It can also eliminate odors from tobacco smoke, cleaning products, paint fumes, and organic sources. Duct cleaning can also reduce wear and tear on your HVAC system so that you may save on improved efficiency, fewer repairs, and a longer system lifespan.

  • Air Duct Sealing: Duct leak testing allows our technicians to determine if you need air duct sealing. Duct leakage can reduce airflow, introduce musty odors from unconditioned spaces, and reduce comfort. To resolve these issues, we can seal leaks from the outside with metallic tape, or use Aeroseal, which is a material blown into ductwork to seal small gaps and poor connections from the inside. It stops air from escaping without having to physically access hard-to-reach areas.

FOR ALL YOUR HOME SERVICE NEEDS

Why Choose Waldrop

Waldrop is a preferred HVAC services provider in Greenville and Spartanburg because we treat customers like family and focus on permanent solutions. We provide high-quality, effective duct leak testing and IAQ services that improve the comfort, efficiency, and health of your cooling and heating system. Whether it’s to test, clean, or seal your air ducts, you can expect prompt, professional, and friendly service. Y’all call Wally to learn more and schedule an appointment.

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What Homeowners Are Saying About Us

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5 Star Reviews
Review Highlights
Customers consistently praise the team's exceptional professionalism, expertise, and genuine customer care across HVAC, plumbing, and electrical services. Technicians are repeatedly highlighted for their knowledge, clear communication, thorough explanations of work and options, and honest recommendations—offering solutions tailored to actual needs without pushing unnecessary add-ons. The combination of prompt response times, efficient same-day service, quality workmanship, and courteous, friendly technicians creates experiences that keep customers coming back and eager to recommend the team to others.

Based on 8,440+ Reviews

Lloyd Vail
1 day ago
Timely, informative and provided information to help make informed deciisions.
Roger
1 day ago
Rachel helped me schedule several appointments, but keeping them spaced apart in a way that fits my schedule, which was no mean feat. I have lots of things scheduled and she was able to help me schedule them all without overwhelming me. (I can't get a new box to leave other reviews in, so I'll just add all 3 people who helped me and all three rate 5 stars). Josh came to the house to look at the bathroom fixture and gave me three options. He was quick, efficient and very knowledgeable. I hope he's the one who comes to do the work on the day it is scheduled. Then, Charles came to my aid when I found that I wouldn't be here on the day I had scheduled the work to be done. He quickly found an appropriate date and time, and it was a time that fit my schedule perfectly. Please rate all 3 of these technicians FIVE stars. Thank you.
Ken Bailey
2 days ago
We had a wonderful experience with Craig G today from Waldrop. He came out for our fall service and found our furnace was not working. He gave us great solutions. He was friendly and knowledgeable. Highly recommend Waldrop. Thanks Wally!
Steve Barnette
2 days ago
Frankie did an excellent job. Great service Took his time and did everything correct and explain everything good 5 stars for FRANKIE!!
Deborah Guthro
2 days ago
Both Dan and Hayden were very knowledgeable, professional, and extremely nice. I couldn’t have asked for a better team. Give them a raise!😁
Nathan Wrigley
2 days ago
Great Service from Sloan highly recommend.
Richard Manzano
2 days ago
Outstanding! Showed up very fast. Very professional.
Cora Snyder
2 days ago
Frankie was amazing tech he talk and explain everything well for me to understand and did great service for me 5 star for FRANKIE!!!
Guy Burney
2 days ago
Sloan SN1158 was prompt and explained what was needed. Changed the filter also
joey car
2 days ago
Very professional and knowledgeable great expcrerince craig g
Cameron Vaughn
2 days ago
Detailed inspection, polite and courteous associate.
Thomas Wills
2 days ago
Sloan was friendly and professional 👍
debbie T (Cat mom)
2 days ago
12/26/25
Brandon was awesome, honest, and dependable. He went over everything with me and I appreciate his input. Thanks Brandon and Waldrop for having such a great crew!

I needed a service call immediately and they made it happen!
Chad Tucker came out and found my leak. Very nice man, he explained everything in detail.

Holden & Jayden finished the job today.
Did a great job, very polite and respectful.
Im very happy with the work and will look forward to lower water bills in the future .
Thank you. Debbie Taylor
Emily Coldwell
3 days ago
Great job and impeccable professionalism from Shamon when he came to do maintenance on my unit.
Loretta Gwaltney
3 days ago
AlexV came out today to check my water heater for me. He was meticulous and thorough. He found the problem and quickly fixed it. Now I can take the longest hot showers I want! Thanks, AlexV!!
Diane Saltzman
3 days ago
Milton came to help me with my toilet and repaired it wonderfully. Very professional and kind
Shaq Suber
3 days ago
Dakota was nothing short of professional and amazing. He identified issues and explained them to me where I could understand. The best HVAC personnel I have ever encountered.
Robin Frank
3 days ago
Very happy AlexV was able to fix our concerns with a few outlets/switches the same he came out to evaluate the problem. We were concerned about complexity and cost, but he was easily able to fix our problems for less than expected
    Colorful service van for Waldrop Plumbing, Air & Electric with a cartoon beaver mascot and contact info on the side.

    Complete Home Comfort Awaits

    From plumbing and electrical to heating, cooling, and indoor air quality, Waldrop is here to keep your whole home running comfortably. Schedule your service today and experience trusted care from the team Upstate homeowners have counted on for generations.