Air Duct Repair and Replacement
Ductwork inspection, repair, and sealing that keeps conditioned air where it belongs.
Ductwork that’s leaking, disconnected, or just old enough to have gaps at the seams sends a surprising amount of conditioned air into your attic or crawl space instead of the room it was meant for. Byrum inspects, repairs, and seals air ducts throughout Marshville, Monroe, and the greater Union County area, tracking down exactly where a system is losing air before doing any work.
Duct work problems show up as uneven temperatures between rooms, a system that runs longer than it should, or a jump in your energy bill with no obvious cause. Whether you need air duct repair on a specific section or a full air duct replacement because the ductwork has outlived its usefulness, we start with an inspection rather than assuming what needs to be done.

Inspect & Repair
We handle air duct repair for leaks, blockages, and the kind of inefficiency that doesn’t show up until your energy bill does. Fixing the actual problem improves airflow and indoor air quality instead of just patching a symptom.
Installations
New duct work gets installed to promote consistent airflow and comfort throughout the space it’s serving, not just routed wherever is easiest to run. That attention to layout is what separates a system that heats and cools evenly from one that leaves certain rooms fighting for airflow.
Sealing
Sealing gaps and loose connections in your air ducts keeps conditioned air where it belongs instead of leaking into your attic or crawl space. It’s one of the more affordable ways to improve efficiency without replacing anything.

Breathe easy with our quality services.
And Dozens More
Qualified for All Major Makes and Models
Our team of expert technicians is trained to handle all makes and models of major brands with precision and care. From routine maintenance to complex repairs, we ensure top-notch service for all.
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Ensure optimal efficiency of all your systems
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Lower your utility costs with energy efficiency
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Extend your system’s lifespan through regular maintenance
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Keep you and your family comfortable and safe during all seasons
Our Certifications & Awards
FAQs
What are the signs of leaky ductwork?
A few signs point to leaky ductwork: uneven temperatures between rooms, energy bills that climb without a change in usage, dust building up around vents faster than normal, allergy or respiratory symptoms that seem tied to being home, whistling or hissing sounds near the ducts, and a system that runs constantly without quite keeping up. Any of these are worth having your ductwork inspected, since a leak that goes unaddressed keeps costing you money every month it’s ignored.
How do I know if I need air duct repair or a full replacement?
Isolated leaks, a few disconnected sections, or minor damage usually get fixed with a repair. Ductwork that’s old, undersized for your system, crushed in multiple spots, or contaminated with mold typically makes more sense to replace outright. A technician can tell you which situation you’re in after an inspection.
How much duct work does a typical repair involve?
It depends entirely on what’s actually wrong. Some repairs are a single sealed joint that takes less than an hour, while others involve replacing a damaged section that runs through an attic or crawl space. An inspection tells you the actual scope before any work starts, rather than guessing at a price.
Can duct sealing really make a noticeable difference in my energy bill?
Yes, often more than people expect. A significant amount of conditioned air can escape through leaky ductwork before it ever reaches a room, and sealing those leaks means your system doesn’t have to work as hard to hit the temperature you’ve set.
How often should air ducts be inspected?
Every few years is reasonable for most homes, though it’s worth doing sooner if you notice uneven temperatures, rising energy bills, or dust and debris around your vents. Homes with pets or recent renovations may benefit from checking more often.
What areas do you serve for air duct repair and replacement?
Byrum provides air duct repair and replacement throughout Marshville, Monroe, and the surrounding Union County area, along with nearby areas of Mecklenburg, Anson, Cabarrus, and Stanly counties in North Carolina, and Lancaster and Chesterfield counties in South Carolina.

Need an HVAC Maintenance Plan in Marshville?
- Improved system performance and energy efficiency.
- Prolonged lifespan of HVAC and IAQ equipment.
- Reduced potential for costly breakdowns and repairs.
- Enhanced indoor air quality for a healthier environment.
- Priority scheduling and prompt service when needed.
- Savings with preventive maintenance & discounted repairs.

HVAC & IAQ Financing Available in Marshville and Surrounding Areas
We understand that major home improvement repairs can come unexpectedly, and our financing partners assist our customers by offering competitive plans. Our convenient financing options give you budget flexibility to get the reliable, energy efficient comfort you’re looking for.
Learn MoreOlin Busbee
I just had my AC, duct system and heating replaced, and I'm extremely happy and very satisfied. I'm so happy that I picked Byrum Heating & AC. If you choose them you will be extremely satisfied – I guarantee it.
Jan Greene
The technician was so thorough in checking out my ductwork and identifying issues. He was extremely professional and explained options for resolving the problem. Came out the same day I called.
Al Parler
Always very professional and always able to fix whatever has gone wrong in a very quick time. Excellent professional service.
Serving the Heartland of the Carolinas Since 1996.
Byrum Heating & A/C, Inc. serves the community with unwavering dedication across a wide service area. With a strong foundation built on Christian values, quality workmanship, and honesty since 1996, they have become a trusted name in heating, cooling, and indoor air quality services. Their NATE-certified technicians cover residential and commercial HVAC needs and ensure top-notch repairs, installations, and maintenance. Byrum's commitment to customer satisfaction and integrity shines through in every interaction, making them the go-to choice for optimizing comfort and cost savings.



















