Goettl technician working on heating system in attic

What Is Involved in Duct Testing?

You may not be aware of how important your home’s network of ducts is. It’s responsible for bringing conditioned air from your heater and air conditioner into the rooms throughout your house, and it also circulates air through the intake vents and into the HVAC system. In order to do its job effectively, the ventilation system must remain in excellent condition with an airtight seal. If this seal develops leaks because of breaks, holes, corrosion, and loose connections, it will cause a plunge in air pressure that will severely affect your home’s comfort. It will also allow contamination to enter the ventilation system, and this will damage your indoor air quality.

Through duct testing you can find out about the integrity of your home’s ductwork. Professionals will come to your house and perform tests that will locate where your ducts have air leaks that are lowering efficiency and endangering your air. After duct testing is finished, the experts will know exactly what needs repairs and how to take care of those repairs.

For duct testing in Green Valley, AZ, call our indoor air quality specialists at Goettl Good Guys Air Conditioning. We have over 70 years of experience in caring for home comfort in Arizona.

Here’s what happens during duct testing

Duct testing involves sealing off an entire ventilation system and then pressurizing it in order to determine how airtight it is. The technicians determine how much air pressure is escaping from the ductwork and then trace down the locations so they can repair or seal them.

The first step in duct testing is to close off all the vents and registers into your home so that the only place air pressure can escape is through leaks along the ducts. A vacuum is attached to the ductwork near the HVAC unit and the whole ventilation system is put under pressure. Using a duct leak tester, the technicians learn how much pressure is escaping from the ventilation system, and this gives them a sense of the scope of the problem.

Once they have determined the total leakage in the ventilation system, the technicians move across the ducts with a pressure sensor to pinpoint the actual leaks and measure how much they air they are losing. Based on these findings, the technicians will recommend the work necessary to make the ductwork airtight once more. It can involve mastic sealing, metallic tape, or sometimes full duct replacements.

Call us for full ductwork services

Duct testing is only the starting point for having airtight ducts. Once our specialists from Goettl Good Guys Air Conditioning have done the testing work, they can handle sealing and repairs, as well as duct cleaning that will ensure there is no contamination inside the ventilation system. Schedule duct testing in Green Valley, AZ with us today.

Testimonials

What Our Customers Say About Us

Goettl Air Conditioning and Plumbing - Las Vegas NV
4.7
Based on 47370 reviews
Stephanie Nicole T.
18 hours ago
Daniel and Christian were so helpful and professional and were very personable! Not only were they polite and knowledgeable, but they had a wonderful sense of humor which is hard to come by nowadays. They answered all my questions and my Husband and I hope that we always get these techs to service our home. The company really hit the jackpot-pot when they found these two because they are one of a kind and extremely hard to find!(: Thank you so much!(: Also, we are apart of the Smart Sadie Program and just received our yearly plumbing rejuvenation and we had the pleasure of meeting our Tech, “Frank M”. He was so knowledgeable and taught me and my Husband so many things we didn’t know which we value so much as we are new home owners and are just kind of wingin’ it! You can really tell that the Techs and the company genuinely cares about their Clients, and I will be requesting Frank M to service the Plumbing needs within my home from this point on! Frank is the man, and we loved him!(: So now we have Christian and Daniel for our HVAC maintenance and servicing and Frank M for all our Plumbing Needs! We have an amazing team and I’m sure that other Clients feel the same way about their Techs as well! Update from June 25th, 2026: Dylan Gibson was just another example of how amazing the staff is at this company! He was so easy to talk to and answered all our questions and listened to all 57 theories I was convinced that were wrong with the HVAC System but reassured me that all 57 were wrong, I just needed my coils cleaned! lol. My husband really enjoy his easy-going personality and all the knowledge that he shared with us! He is excellent and a huge asset to the company for sure(: Love this Company!
Jose J.
22 hours ago
As part of the Gottel’s Super Savers Program, technician Gonzo came to service my HVAC system. I had a 9:00-1:00 service appointment. At 1:00, I called the main office and after confirming with the tech, they moved up my appointment to 1:00-3:00. Gottel credited $50 to my future service calls. Thank you. Once Gonzo arrived, he was very thorough with the system. Gonzo explained to me that he would probably take longer than other technicians because he was going to clean the system as if it was his AC system. Gonzo was very systematic in his approach to the HVAC system. Since I was watching him work, he was nice enough to explain what he was doing to the system. I sincerely appreciate Gonzo’s approach and ability. Gonzo was friendly, confident in his ability, and professional. I will definitely ask for him on my next service call. After he was done, I forgot all about the waiting. P.S. my two 4 year old grandkids were happy with the Sadie plush toys Gonzo gave them. I also enjoyed the fashion flashlight. Finally, as part of the Saver’s Program, there was no charge for the service. Thanks Gonzo.
Nicholas F.
1 day ago
Logan provided amazing customer service and was very knowledgeable on our systems. He went the extra step to educate us on our city’s water, we will be requesting Logan for any and all plumbing services.
Justine P.
1 day ago
Hello Goettl team, I'm very satisfied with the work Colton Hayes did today installing the garage disposal. He was very nice and polite. Installation was done fast and clean. Thank you Colton and Goettl team.
Donna M.
1 day ago
Maintenance on furnace and Air conditioning.. Chris was great! Professional.. explained his findings, how to fix it. He was great. I’m very satisfied with my first visit. Thank you.
Linda S.
1 day ago
Kris is one of the better technicians that I have ever experienced in all of my years and I highly recommend him and this company. They are so efficient respectful, and would happily have them come back again.
Sam H.
1 day ago
Andrew G. did a great job taking pictures and going over a very thorough review of different options with me. Very personable and answered all my questions with ease - very knowledgeable!
Rosa M.
1 day ago
Robert was able to Blow in the Attic insulation Despite it was very hot, he did it without complaint and he was very nice about it and so was his helper I was satisfied with the work
Shirl R.
1 day ago
They are the best company out there. They take pride in their work and they have the most nicest employees. Definitely recommend and I’m looking forward to working with them in the future.
Clifton M.
1 day ago
I needed a new water heater and the gentleman, Josh, who came out for inspection got me a really good deal. He quickly sent Alek out to remove the old one and install the new one. Alek was also awesome. My family and I greatly appreciate Goettl for doing this for us. Will use them again for other needs. Thanks Josh and Alek!!