How do technicians find duct leaks?

Pressure testing measures airflow and pinpoints leaks. Technicians use this data alongside visual inspection to locate problem areas. Smoke testing and thermal imaging may also reveal hidden leaks inside walls or attics that escape visual detection.

What material is used to seal ducts?

Professional-grade mastic sealant is the standard for long-lasting results. It hardens and remains flexible, accommodating minor ductwork movement. Reinforced mesh tape supports the mastic and covers larger seams. This combination outperforms standard duct tape, which fails quickly under temperature changes.

How much can duct sealing save on energy bills?

Sealed ducts improve efficiency by delivering more air to the home, reducing system runtime. Savings vary by leak severity and system type, but 10–25% reductions are common. Peachtree Corners' hot, humid summers mean bigger savings from reduced cooling load.

Is duct sealing worth the investment?

Yes. Energy savings typically recover the sealing cost in 3–5 years. Beyond financial returns, residents enjoy better comfort, more even temperatures, and lower strain on the HVAC system, extending its lifespan.

Can sealing ducts improve indoor air quality?

Sealed ducts prevent outdoor air and attic contaminants from entering the system. This reduces dust circulation and allergen infiltration. Especially valuable in Peachtree Corners during spring pollen season and when humidity rises in summer.

Duct Sealing in Peachtree Corners, GA

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One Hour Heating & Air Conditioning® of North Atlanta

Peachtree Corners blends growth and tradition—newly developed neighborhoods sit alongside established subdivisions. Both old and new ductwork develops leaks at seams and connections. Duct sealing closes gaps, recovers lost efficiency, and delivers conditioned air where it should go: inside the home.

Growth and Ductwork: New Development Challenges

Peachtree Corners' expansion into new developments means many homes have brand-new mechanical systems. Installation quality varies—some have tight, sealed ducts, others develop leaks immediately. As new homes settle into the piedmont terrain, ductwork shifts and connections loosen. Proactive sealing during the first year prevents years of energy waste and keeps comfort consistent as construction phases complete.

Established Neighborhoods: Restoring Lost Efficiency

Original ducts in 70s and 80s subdivisions have sealed many times over, and tape cracks and peels. Mastic sealant hardens and fails. Spring and fall temperature swings create expansion and contraction that breaks seals. Pressure testing reveals leakage rates; professional sealing with new mastic and reinforced tape restores duct integrity. Many homeowners see 15–20% energy savings after sealing.

The Sealing Process and Long-Term Benefits

Technicians identify leaks using pressure testing and visual inspection, then seal seams with mastic compound and high-quality tape. Some jobs include wrapping ducts with reinforcement mesh for durability. Sealed ducts deliver more conditioned air to rooms, reducing strain on the cooling and heating system. Lower utility bills and improved comfort across all seasons reward the investment.

About Peachtree Corners

Peachtree Corners, incorporated in 2012 in southwestern Gwinnett County approximately 20 miles northeast of Atlanta, combines longtime residential neighborhoods with contemporary construction. The city includes established 70s-80s subdivisions, newer residential developments, the Technology Park corporate hub, and the innovative Curiosity Lab smart city testing grounds alongside Town Center retail.

Serving Peachtree Corners and Surrounding Areas

Duct sealing service available throughout Peachtree Corners, Norcross, Duluth, Johns Creek, Berkeley Lake, Doraville, Dunwoody, and Gwinnett County.

Call (404) 689-4168 to schedule service.

Visit our office:

One Hour Heating & Air Conditioning
1360 Union Hill Rd Ste 5F, Alpharetta, GA 30004
(404) 689-4168
Open 24 hours

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Between Alex and Andrew, the job got done and done very very well… Thanks for the efforts…. Highly recommend One Hour heating and air conditioning!

Gordon Usher

in the last week

Dean did a great job helping us out. Between Dean and Daniel out in the field, and Caren and Heather up in the office, this company has helped us feel that not only do we matter as customers, but also that they care about their employees and want to see them thrive. 10/10, highly recommend.

Lily LS

a week ago

We had an unexpectedly stressful situation where we needed to replace our HVAC system, and One Hour Heating & Cooling was one of several companies we contacted for an estimate. From the very beginning, Rob, the owner, stood out. He was incredibly down-to-earth, honest, and took the time to explain everything to us in detail without making us feel pressured. After meeting with several companies, Rob was by far our favorite, and we felt very comfortable choosing his team for the job. It truly felt like we were becoming part of a family rather than just being another number at a large company, and that made a huge difference to us. The installation team was just as impressive. They were professional, respectful, clean, and truly top-class guys. They did an excellent job and left everything neat and tidy. We’re really looking forward to working with Rob and his team going forward. It’s refreshing to find a company you can genuinely trust, and we’re very happy to recommend One Hour Heating & Cooling to our friends and family! Thank you, Rob and team, for making an unexpected and stressful situation so much easier!

Courtney Baron

a week ago

1) When our air conditioner failed after hours, we actually reached a real person who scheduled our repairs for the next day. 2) Greg Nieves was the expert who arrived, and we were immediately impressed with his reliability, knowledge, and efficiency. He knew what he was doing, quickly gained our trust, and guided us to the best option. When one finds integrity and pride in a job well done, it is important to acknowledge that. We didn't know about One-Hour before yesterday, are well satisfied and have now become a regular client.

Maryann Sperry

a week ago

Zo was fantastic! He came to my home to diagnose an issue with my AC and immediately impressed me with his knowledge, professionalism and decades of experience. He arrived prepared with the right tools, took the time to explain what was happening and helped me understand the different options available. Most importantly, he genuinely cared about finding the right solution for both my needs and my budget rather than simply pushing the most expensive option. I really appreciated his honesty, expertise and willingness to help and I would highly recommend Zo from One Hour Heating & Cooling to anyone in need of HVAC service!

Matt Peace

a week ago

Andrew did an awesome job putting in my new air conditioning and furnace. Boaz helped him and also did an incredible job. This company has been so great in every way. I will recommend them to my family and friends. Thank you for everything. A special shout out to Bret who gave such great advice. This company is filled with wonderful people.

Brent

a week ago

Excellent service and top quality repair technicians. We brought out another company and they insisted we needed to spend over $10,000 for a new A/C system and for $267 One Hour Heating and Cooling repaired our A/C. We are so grateful to work with a trustworthy company. I highly recommend them!

William Pergakes

a week ago

Gage did an amazing job with repairing my HVAC unit. He had the part I needed a day before he came out to my home. He explained everything he was doing and answered all of my questions. I needed a blower motor. He completed the job in about 45 minutes. Gage arrived when he said he would. I will most definitely be calling One hour heating and AC again. Reasonable pricing and awesome customer service. Thanks again Guys

Stephen Hardy

a week ago

Anthony did a great job assessing the issue and fixing it! We were able to repair our unit and get the house cool again. He was very professional and informative and even took a look at the furnace for us. Would reccomend.

Midia Tanis

a week ago

Jammie was very personable and professional. She took pictures of the HVAC unit and explained everything in great detail. She even wore shoe covers before entering my home showing great respect for my property. She was a delight to deal with and is definitely an asset to your company.

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