Hattiesburg winters are mild most days. Then a cold front rolls through, overnight temperatures drop below freezing, and your furnace has to work all night long. If it gives out, Tri-County Air Service sends NATE-certified technicians across the Hub City to get your heat back on.
We have served South Mississippi since 2005, and we bring the same furnace repair standards to every Hattiesburg home: upfront pricing, a clean work area, and a 100% satisfaction guarantee.
Call 601-258-3804.
Furnace Problems Hattiesburg Homeowners Face
Local weather and housing create a few patterns our technicians see every winter.
Long Months Without Use
Many Hattiesburg furnaces sit idle from spring until late fall. Dust settles on burners and flame sensors, so the first cold morning often brings ignition failures or a burning-dust smell.
Humidity and Corrosion
Our humid climate is hard on heating equipment. Moisture in attics and crawlspaces can corrode electrical connections, rust burner parts, and clog condensate lines on high-efficiency furnaces.
Older Homes and Aging Ductwork
Older homes in Hattiesburg’s historic districts near Downtown often have ductwork that has been patched or extended over the years. The result is uneven heat, with some rooms toasty and others cold.
Rental Homes Near Campus
Rental properties near the University of Southern Mississippi often go years without maintenance. Small issues like dirty filters and worn igniters turn into no-heat calls during the first cold snap.
Heat Pumps Struggling During Hard Freezes
Many Hattiesburg homes heat with a heat pump. When temperatures fall into the 20s, backup heat strips take over, and worn strips, sequencers, or defrost controls tend to fail right when you need them most.



