
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

My wife and I are upgrading our home with the new water purity package and cannot wait to try our new water.Thank you Joseph or the service you provided and information you shared.I highly recommend joseph and goettl!

He left the work site clean and was very neat,I am completely impressed with Goettl
Technicians !!








I look forward towards the next project. Thanks!




Outstanding Plumbing Service –
⭐️⭐️⭐️⭐️⭐️
Above and Beyond — 10-Star Service
Martin Alamaguer Morones did an absolutely exceptional job repairing our attic. From start to finish, his professionalism, skill, and attention to detail were outstanding. He clearly explained what needed to be done, worked efficiently, and delivered results that exceeded our expectations.
The quality of Martin’s workmanship is top-tier, and it’s obvious he takes great pride in his work. He was punctual, respectful of our home, and left everything clean and in perfect condition. The repairs were done right the first time, giving us complete peace of mind.
If we could give Martin 10 stars, he would absolutely deserve them. We highly recommend him to anyone looking for reliable, honest, and high-quality repair work. We wouldn’t hesitate to hire him again.
As always…..Thank you Goettl for EXCELLENT CONTINUOUS SERVICE!








By the end of the day, I had hot water and Mark left no sign of a mess behind.
I was surprised at such fast service and impressed by everyone I interacted with.
Great company!



Gilbert was very knowledgeable and explained what he had done for us and about insulation. If you had a scale to 10, Gilbert would earn that 10! Thanks.





His help was very much appreciated.
Sincerely,
Shawn











Tai Fernandez-Estabillo, service rep is excellent. I deal with a lot of contractors in my student housing operation and he is at the top of his field. Proud to know him. Thanks for the professional service Tai.



Husam, Raymond, Johnny, Joe, Marcus; Very professional and great communication skills. Great service all around!





Mike was so very thorough and explained each thing that he was taking care of, that I asked him if I could request him for our next service.
I wasn’t sure if I was going to renew my membership with GOETTL, but after such a great experience with Mike, I’m definitely renewing..





Daniel came out to perform my yearly maintenance review he did a great job. He was very informative. Provided recommendations and very knowledgeable. Very polite and professional. I would recommend him for services






Goettl is not cheap, although their service visit is very inexpensive, their quotes are almost always considerably higher. The service from an employee like Gilbert, however, is the sole reason why I would even consider entertaining a higher cost.

you Goettl!













Recommend Highly!

He certainly understands what Customer Service is all about!
Joey was on time, well-mannered, and very professional. He took care of our problem, took time to explain all aspects of the project in detail, and left the work area nice and clean.
We will definitely utilize Goettl’s services in the future, as needed and have nothing but the highest praise for Joey Martin!









Thermostat. Stopped working on Monday night 10/20 /2025. GOETTL Tech. Kevin Andrew text to notify me of his ETA. Was very punctual. Explain what the problem was, he checked it out , went up to attic and found the problem. Explain to me the issues that was causing the A/C Thermostat to turn off. Went into detail explaining to me what was causing the A/C Thermostat to turn off. He was very professionalc and ourteous.
Thank you Kevin... Blessings

Explained everything clearly and was very respectful..
Thanks for a job well done Frank.











As usual we are very satisfied with Goettl











I had such a good experience with Goettl the last time, that I decided to use them again for HVAC. Kevin was the technician assigned to my job. He was very professional and provided me with a thorough and accurate diagnosis. He patiently explained everything to me and walked me through the recommended repairs and even shared alternative solutions. I have the information I need and feel comfortable moving forward. I’m in good hands. I will be requesting him as my technician for all future calls.

Like most people, I typically search for the cheapest service I can find, and I end up having other plumbers come out to check out issues with my tankless water heater, who run their mouths, upsell parts (that don't seem to be causing the problem), and generally don't really know enough about tankless water heaters. This time, I decided to go with an experienced company with a good reputation, and I am glad that I did - Goettl's prices are very reasonable and worth the service they provide.
Juan, was very knowledgeable, patient, and persistent. Even better, he was careful and humble enough to acknowledge that he didn't know everything and checked with the manufacturer at every step. Juan spent a great deal of time helping me diagnose the problem (which always seems impossible to ascertain quickly with machines like tankless water heaters), and went above and beyond to ensure that my guests and I had hot water tonight.
Juan never got frustrated; he handled everything carefully and made sure to clean up after himself when he was done. If I can have Juan take care of all of my plumbing or AC issues in the future, I will. And if you're reading reviews to decide whether to call Goettl for your issue, I would encourage you to trust their service and experience. My experience with Juan was definitely memorable.
We now have hot water again. Can I get a "hell yeah"?








We had a concerning plumbing issue, and Geo was able to diagnose the problem with impressive speed and accuracy. What I really appreciated was that he took the time to clearly explain what was wrong, showed me what he was looking at, and gave me honest, practical advice on the best solution.
He had the issue resolved in no time at all. The whole experience was seamless, from the quick scheduling to the efficient and high-quality work. It’s so refreshing to find a technician who is not only a master of his craft but also a genuinely kind and trustworthy person.
A huge thank you to Geo and the entire team at Goettl. You have a customer for life! If you need a plumber, ask for Geo—you’ll be in the best hands

We had a concerning plumbing issue, and Geo was able to diagnose the problem with impressive speed and accuracy. What I really appreciated was that he took the time to clearly explain what was wrong, showed me what he was looking at, and gave me honest, practical advice on the best solution.
He had the issue resolved in no time at all. The whole experience was seamless, from the quick scheduling to the efficient and high-quality work. It’s so refreshing to find a technician who is not only a master of his craft but also a genuinely kind and trustworthy person.
A huge thank you to Geo and the entire team at Goettl. You have a customer for life! If you need a plumber, ask for Geo—you’ll be in the best hands






Call Goettl and was able to get us on the schedule due to a cancellation they had.
Jef Eusepi our tech was fantastic.
He explained everything and showed us pictures of what he was doing and fixing.
Would definitely recommend this Company and Jef.









I have seen Goettl vans all over town and so I called them.
Got appointment right away and the Technician, Jef Eusepi, took care of our problem.









Thank you,
Greg Sanches





















This past week our service technician was Andrew Morgan and he is such a friendly, knowledgeable, and skilled technician. He spent time making sure the job was done correctly and he explained it in terms that I could understand. Not only is our unit functioning even better than before, I also gained knowledge of how the system works.













I highly recommend Goettl as this is the second time l've used them in less than a year. (2 seperate issues)... and I highly recommend them..anytime and anyday.
They have exceeded to top any expectations I could have ever had with any company.








The company is installing a tankless heater and the customer service is outstanding.
I recommend Geottl to all!


They made sure my carpet was covered and when they were all through they cleaned up perfectly
I would recommend your company to anyone looking to put in a new air conditioner.
Thank you so much for all you did for me.
Sincerely, June Jones

And I would highly recommend the company and the quality technicians like Jarod.
Jarod is the go to if you want excellent
Customer service and communication for any AC related issues. He is very knowledgeable, personable and trustworthy. I am grateful and satisfied.






They listened to my issue, were very through, checked for leaks, etc. I’ve lived in Lakeway for 30 years, used MANY local plumbers - but Goettl will definitely get all my business moving forward. HIGHLY recommend!
Ty, Wil & Adrian!

Everyone from the Goettl sales representative Christian, Tech / Advisor Josias recommended a HVAC A/C and Heating system replacement. Technicians team Veronica and her partner.


