Furnace Repair and Installation
Keeping Union County homes warm through cold snaps and long winter stretches.
A furnace that’s struggling doesn’t usually fail all at once. It starts with a room that never quite gets warm, a strange noise, or a system that runs constantly without catching up. Byrum installs, maintains, and repairs furnaces for homes throughout Marshville, Monroe, and the greater Union County area, and we look at the specific unit in front of us before recommending a fix.
Our technicians train on every major furnace brand, so a new installation gets sized correctly for your home and an aging unit gets diagnosed accurately instead of guessed at. Union County winters bring enough cold stretches that a reliable furnace isn’t optional, and that’s what we aim to keep running, season after season.

Inspect & Repair
Our technicians look at what’s actually going on with your furnace before touching a single part. A strange noise, uneven heating, a spike in the gas bill, we track the cause down and explain it in plain terms before starting any repair.
Installations
A new furnace installation starts with sizing the unit to your home, not just swapping in whatever’s on the truck. We walk you through the options, then handle the removal and install so the new system is running correctly the same day.
Maintenance
A furnace that gets serviced once a year tends to run more efficiently and last longer than one that doesn’t. Our maintenance visits catch the wear that turns into a breakdown on the coldest night of the year, when you can least afford to wait on a repair.

Heating excellence guaranteed.
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.
-
Ensure optimal efficiency of all your systems
-
Lower your utility costs with energy efficiency
-
Extend your system’s lifespan through regular maintenance
-
Keep you and your family comfortable and safe during all seasons
Our Certifications & Awards
FAQs
How do I know if my furnace needs to be repaired?
Several signs point to a furnace that needs repair. Listen for unusual noises like banging, rattling, or popping. Uneven heating, where some rooms run warm and others stay cold, is another sign something’s off. A jump in your energy bill without a change in how you’re using the system can point to the same problem. Frequent cycling or a yellow, flickering pilot light are worth a call too, and a strong gas odor or visible soot around the unit means you need a repair right away, not a scheduled one. Our technicians can check your furnace to confirm it’s running safely.
How can I keep my furnace in good working condition?
Regular filter changes and an annual maintenance visit do most of the work. Keeping vents and returns clear of furniture and clutter helps too, since restricted airflow makes a furnace work harder than it needs to. A yearly inspection catches the small issues, worn belts, loose connections, a dirty flame sensor, before they turn into a bigger repair.
How often should I clean or replace my furnace filter?
Most standard filters need changing every one to three months, more often if you have pets or run the system constantly during a cold stretch. A clogged filter restricts airflow and makes the furnace work harder, which drives up energy costs and shortens the system’s lifespan.
How long does a furnace installation take?
Most furnace installations are done in a single day, from removing the old unit to testing the new one before we leave. More complex installations, like ones involving ductwork changes, can take longer.
How long should a furnace last before it needs replacing?
Most furnaces last 15 to 20 years with regular maintenance. Frequent repairs, rising energy bills, and a system that can’t keep up anymore are signs it’s closer to the end of its life than the middle.
What areas do you serve for furnace repair and installation?
Byrum installs and repairs furnaces 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 MoreDavid Silver
I had no idea what had gone wrong with my unit. The tech diagnosed a simple fix and the fee was very reasonable. Absolutely satisfied.
Roland Hinson
They have done several calls for me at different locations. ABSOLUTELY THE BEST AROUND. Believe me when I say don’t waste your time with anyone else. Service, knowledge and price. Cannot beat them.
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.



















