How do I know if my air ducts are properly sealed after repair?
Why Proper Duct Sealing Matters After Repairs
Energy Efficiency and Cost Savings
Enhanced Home Comfort
Improved Indoor Air Quality
Our Trusted Partners
EXCELLENT Based on 1221 reviews Marie NewmanTrustindex verifies that the original source of the review is Google. I was very pleased with Ms. Coleman. I may need her again one day. She was very thorough. Lorie HutchinsTrustindex verifies that the original source of the review is Google. Ashanti was very professional and polite. Great with explaining everything she did as well offering great advice on getting most life out of the unit Dr. Cheryl EasterTrustindex verifies that the original source of the review is Google. Ashante was excellent! She is personable, professional, and highly knowledgeable. After inspecting what I thought to be a problem, she took the time to thoroughly explain in laymen’s terms how my aquatherm HVAC unit operates. I appreciate the tips she offered in the importance of keeping up with the maintenance of my HVAC unit. Great job Automatic Climate!!
Owner's reply
Thank you for your detailed feedback about Bah D.'s service! We're delighted to hear that you found his customer service, communication skills, and knowledge excellent. We appreciate you noticing our policy of consulting with management. This approach helps us ensure we provide the best possible service and solutions. We're glad it has given you a sense of trustworthiness in our company. Tony AtlasTrustindex verifies that the original source of the review is Google. Ashante C. is the ultimate professional and a great person to have in the field recognizing the brand. Travonna KenyearTrustindex verifies that the original source of the review is Google. Never use Automatic Climate for HVAC services.They installed a part that we never needed or used .One technician said we needed the part and the very next day another technician said that he couldn't' repair the system because our system was old .Therefore the first technician knew of this before he put on a part that cost us 425.00. We never got any use from the part or a refund .More importantly we're still without air. Laurence HillTrustindex verifies that the original source of the review is Google. Aaron and his colleague did an awesome job of maintaining my 2 heat pumps. The work and recommendations were too notch and will hopefully take me through the summer trouble free. Thanks again Automatic Climate
Owner's reply
We're thrilled to hear Nathan tackled both your newer and older units with such expertise! His ability to service different systems and proactively recommend preventative measures demonstrates his dedication to your long-term comfort. Thank you for sharing your positive experience and kudos to Nathan! Ron ConnerTrustindex verifies that the original source of the review is Google. Ashante from Automatic Climate service my unit today. She did an excellent job. Showed up on time, very nice, and did the job as expected. Good company to work with. Diane LankeyTrustindex verifies that the original source of the review is Google. My technician,Jay,was polite, considerate, efficient and knowledgeable.
Owner's reply
We're thrilled to hear about your positive experience with our technicians! We take great pride in their knowledge, courtesy, and respect for your property. Protecting your floors is just one way we strive to go the extra mile and ensure customer satisfaction. Thank you for choosing us and highlighting this important aspect of our service! Jesse HuckinsTrustindex verifies that the original source of the review is Google. The people that They sent out are always kind. This is where this company shines. Unfortunately, it is very hard to make contact with this company when you are looking to get basic information. Technician came out to my home, stated that my drain line was in place and that everything was OK with it. Except for the fact that my unit doesn’t even have a drain line in place. My unit is in the attic space. Have any drain line in place is kind of an important thing to have. The capacitor inside the unit that is indoors was being held up with a piece of electrical tape when it should be held in with a bracket. This shows lack of attention to detail, and now I don’t even feel like the unit was checked over correctly. There are a handful of other companies in the area that will seriously check over the unit and ensure everything is safely connected. Unfortunately, I cannot recommend this company and I will never use them again. Carrie WoodrumTrustindex verifies that the original source of the review is Google. Lucian was very thorough and found an issue, and repaired it, that was impacting the airflow to a problematic room. He also recommended several other repairs that I could do to help the life of my system and those repairs will be scheduled soon.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Exclusive Promotions and Coupons

$39 A/C
Tune-Up!
Take advantage of this limited time offer. Keep your home cool this summer with Automatic Climate!*
*Expires 12/30/25. Offer can’t be combined with other offers or promotions. Offer valid for existing and new clients.

$50 OFF Air
Duct Cleaning
Save $50 on your next air duct cleaning service for a limited time!*
*Expires 12/30/25. Offer can’t be combined with other offers or promotions. Offer valid for existing and new clients.

$49 Water
Heater Flush
Take advantage of this $49 water heater flush and make sure your water is heating properly!*
*Expires 12/30/25. Offer can’t be combined with other offers or promotions. Offer valid for existing and new clients.
Extended HVAC System Lifespan

Telltale Signs Your Duct Sealing Might Be Compromised
1. Uneven Temperatures Between Rooms
2. High Energy Bills
3. Excessive Dust
4. Visible Duct Damage or Disconnections
5. Strange Noises
6. Poor Airflow from Vents
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Signs Your Duct Sealing Might Need Attention
DIY Checks vs. Professional Duct Sealing Verification
Simple DIY Inspections
The Limitations of DIY Checks
While these DIY steps can identify major, obvious problems, they have significant limitations:
- Inaccessibility: Much of your ductwork is hidden within walls, floors, and ceilings, making visual inspection impossible without demolition. Significant leaks often occur in these hidden areas.
- Small Leaks Add Up: DIY methods are poor at detecting numerous small leaks, which collectively can account for substantial energy loss. Proper duct sealing addresses these comprehensively.
- Quantification Issues: DIY checks can’t measure the *total* leakage rate. You might find *a* leak, but you won’t know if the overall system meets acceptable standards for duct sealing.
- Safety Concerns: Navigating attics and crawl spaces can be hazardous. Working near HVAC equipment also carries risks if you’re unfamiliar with it.
When to Call the Professionals
Professional Methods for Confirming Duct Sealing Integrity
Duct Leakage Tester (Duct Blaster® Test)
This is the industry standard for quantifying duct leakage. The process generally involves:
- Temporarily sealing all supply registers and return grilles throughout the house.
- Connecting a calibrated fan (the “Duct Blaster”) to the duct system, usually at the air handler or a large return opening.
- Pressurizing (or depressurizing) the entire duct system to a standard pressure, typically 25 Pascals (Pa). This pressure difference simulates the operational pressure within the ducts.
- Measuring the amount of airflow (in cubic feet per minute, CFM) required by the fan to maintain that standard pressure. This airflow measurement represents the total leakage rate of the duct system (often referred to as CFM25).
The results of this HVAC duct testing provide a precise measure of how airtight your ducts are. Technicians compare this CFM25 number against industry standards or local building codes to determine if the duct sealing is adequate. A test performed after air duct repair can confirm its effectiveness. Quality duct sealing results in a low CFM25 reading.
Smoke or Fog Testing (Pressurized)
Thermal Imaging
Maintaining Ductwork Integrity: Post-Sealing Tips
What Constitutes “Properly Sealed”? Understanding the Standards
Beyond the numbers, proper duct sealing also involves using the right materials and techniques. Reputable professionals like those at Automatic Climate will use:
- Mastic Sealant: A gooey substance applied generously over joints and seams. It remains flexible and provides a durable, long-lasting seal.
- Metal-Backed Foil Tape: Specifically designed for HVAC applications (like UL 181 tape). It adheres strongly and withstands temperature fluctuations.
- Proper Mechanical Fasteners: Screws or clamps at connections before sealing ensure structural integrity.
- Aerosolized Sealants (e.g., Aeroseal): An advanced technique where sealant particles are blown into the duct system under pressure, automatically finding and sealing leaks from the inside. This method often achieves very tight duct sealing results.
Conversely, plain cloth-backed “duct tape” should *never* be used for sealing ducts. It degrades quickly under temperature changes and fails, negating any duct sealing effort. Seeing this tape is a red flag. Effective duct sealing relies on correct materials and skilled application, often involving comprehensive air sealing techniques.
The Long-Term Benefits of Confirmed Duct Sealing

Taking the step to verify your duct sealing after a repair isn’t just about fixing a potential immediate problem; it’s an investment that pays dividends over the long term.
- Sustained Energy Savings: Properly sealed ducts minimize wasted energy month after month, year after year, leading to consistently lower utility bills and a quicker return on your repair investment. This is key to long-term improve energy efficiency.
- Consistent Home Comfort: Enjoy reliable heating and cooling in every room, eliminating frustrating hot and cold spots. Verified duct sealing equals consistent comfort.
- Healthier Indoor Air: By preventing the infiltration of dust, allergens, and pollutants from unconditioned spaces, effective duct sealing contributes significantly to better home air quality and a healthier living environment.
- Reduced HVAC Strain: An efficient duct system allows your heating and cooling equipment to operate as designed, reducing wear and tear and potentially extending its operational lifespan, saving you from premature replacement costs. Good duct sealing protects your HVAC investment.
- Peace of Mind: Knowing that your duct system has been professionally tested and confirmed to be properly sealed provides confidence that your home is operating efficiently and safely.
Effective duct sealing isn’t a one-time fix forgotten after repair; it’s fundamental to your home’s performance.
Ensure Your Ducts Are Sealed Right!
Case Study: The Difference Verified Sealing Makes
Automatic Climate: Your Richmond Partner for Duct Sealing Verification
Why Choose Automatic Climate?
- ✔ Experienced Technicians: Our team is highly trained in all aspects of HVAC systems, including advanced duct sealing and testing techniques.
- ✔
- ✔ Comprehensive Services: From air duct cleaning and repair to new installations and maintenance, we handle all your HVAC needs. Excellent duct sealing is part of our comprehensive approach.
- ✔ Customer Satisfaction Focus: We stand behind our work. Check out our customer reviews and learn about our satisfaction guarantee. We aren’t happy until your duct sealing meets high standards.
- ✔ Local & Trusted: As a long-standing Richmond business (About Us), we’re committed to serving our community with integrity. We prioritize proper duct sealing for our neighbors.
Frequently Asked Questions About Duct Sealing Verification
Further Reading & Resources:
Our Trusted Partners
EXCELLENT Based on 1221 reviews Marie NewmanTrustindex verifies that the original source of the review is Google. I was very pleased with Ms. Coleman. I may need her again one day. She was very thorough. Lorie HutchinsTrustindex verifies that the original source of the review is Google. Ashanti was very professional and polite. Great with explaining everything she did as well offering great advice on getting most life out of the unit Dr. Cheryl EasterTrustindex verifies that the original source of the review is Google. Ashante was excellent! She is personable, professional, and highly knowledgeable. After inspecting what I thought to be a problem, she took the time to thoroughly explain in laymen’s terms how my aquatherm HVAC unit operates. I appreciate the tips she offered in the importance of keeping up with the maintenance of my HVAC unit. Great job Automatic Climate!!
Owner's reply
Thank you for your detailed feedback about Bah D.'s service! We're delighted to hear that you found his customer service, communication skills, and knowledge excellent. We appreciate you noticing our policy of consulting with management. This approach helps us ensure we provide the best possible service and solutions. We're glad it has given you a sense of trustworthiness in our company. Tony AtlasTrustindex verifies that the original source of the review is Google. Ashante C. is the ultimate professional and a great person to have in the field recognizing the brand. Travonna KenyearTrustindex verifies that the original source of the review is Google. Never use Automatic Climate for HVAC services.They installed a part that we never needed or used .One technician said we needed the part and the very next day another technician said that he couldn't' repair the system because our system was old .Therefore the first technician knew of this before he put on a part that cost us 425.00. We never got any use from the part or a refund .More importantly we're still without air. Laurence HillTrustindex verifies that the original source of the review is Google. Aaron and his colleague did an awesome job of maintaining my 2 heat pumps. The work and recommendations were too notch and will hopefully take me through the summer trouble free. Thanks again Automatic Climate
Owner's reply
We're thrilled to hear Nathan tackled both your newer and older units with such expertise! His ability to service different systems and proactively recommend preventative measures demonstrates his dedication to your long-term comfort. Thank you for sharing your positive experience and kudos to Nathan! Ron ConnerTrustindex verifies that the original source of the review is Google. Ashante from Automatic Climate service my unit today. She did an excellent job. Showed up on time, very nice, and did the job as expected. Good company to work with. Diane LankeyTrustindex verifies that the original source of the review is Google. My technician,Jay,was polite, considerate, efficient and knowledgeable.
Owner's reply
We're thrilled to hear about your positive experience with our technicians! We take great pride in their knowledge, courtesy, and respect for your property. Protecting your floors is just one way we strive to go the extra mile and ensure customer satisfaction. Thank you for choosing us and highlighting this important aspect of our service! Jesse HuckinsTrustindex verifies that the original source of the review is Google. The people that They sent out are always kind. This is where this company shines. Unfortunately, it is very hard to make contact with this company when you are looking to get basic information. Technician came out to my home, stated that my drain line was in place and that everything was OK with it. Except for the fact that my unit doesn’t even have a drain line in place. My unit is in the attic space. Have any drain line in place is kind of an important thing to have. The capacitor inside the unit that is indoors was being held up with a piece of electrical tape when it should be held in with a bracket. This shows lack of attention to detail, and now I don’t even feel like the unit was checked over correctly. There are a handful of other companies in the area that will seriously check over the unit and ensure everything is safely connected. Unfortunately, I cannot recommend this company and I will never use them again. Carrie WoodrumTrustindex verifies that the original source of the review is Google. Lucian was very thorough and found an issue, and repaired it, that was impacting the airflow to a problematic room. He also recommended several other repairs that I could do to help the life of my system and those repairs will be scheduled soon.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Exclusive Promotions and Coupons

$39 A/C
Tune-Up!
Take advantage of this limited time offer. Keep your home cool this summer with Automatic Climate!*
*Expires 12/30/25. Offer can’t be combined with other offers or promotions. Offer valid for existing and new clients.

$50 OFF Air
Duct Cleaning
Save $50 on your next air duct cleaning service for a limited time!*
*Expires 12/30/25. Offer can’t be combined with other offers or promotions. Offer valid for existing and new clients.

$49 Water
Heater Flush
Take advantage of this $49 water heater flush and make sure your water is heating properly!*
*Expires 12/30/25. Offer can’t be combined with other offers or promotions. Offer valid for existing and new clients.