Reliable Heat, Lower Bills, Less Stress
When the temperature drops, you want your furnace to come on, run safely, and keep your home comfortable without sending your energy bill through the roof. Regular furnace maintenance in Hattiesburg helps you reach that goal. A simple yearly visit can make a big difference in comfort and peace of mind.
At Tri-County Air Service, we help homeowners across Southern Mississippi keep their heating systems ready for those chilly and damp winter days. We know you are busy, and you want straightforward service from people you can trust. Our goal is to make taking care of your furnace easy, predictable, and worthwhile.
We have served this region since 2005, growing from a single truck into a trusted home comfort provider. With our 100 percent satisfaction guarantee and strong local reputation, you can feel confident inviting our team into your home for your next tune up.
Keep your furnace efficient and reliable: call Tri-County Air Service or message us online to schedule your tune-up.
Why Homeowners Choose Our Team
When you schedule furnace service, you are not just buying a checklist. You are inviting a company into your home and relying on that team to look out for your family’s comfort and safety. That is why many homeowners in the Hattiesburg area turn to Tri-County Air Service year after year.
We have been part of Southern Mississippi since 2005. What began with one service truck based in Wiggins is now a regional operation serving communities including Hattiesburg, Gulfport, Biloxi, and Lucedale. That steady growth comes from customer trust, not flashy advertising, and it means we are here for you today and in the years ahead.
Our track record reflects that trust. Out of 239 published customer reviews, 95 percent are 5-star, and more than 96 percent of our customers say they would recommend us to a friend. We also hold an A+ rating with the Better Business Bureau, which reflects our commitment to professional and ethical service with every visit.
Quality work on your heating system depends on who is doing the work. Our technicians hold NATE certification, which is a leading technical credential in the HVAC industry, and we are a Carrier Factory Authorized Dealer. For you, that means the people inspecting and tuning your furnace are trained, tested, and supported by one of the most respected names in home comfort.
We are also a veteran-owned and operated company. Values like integrity, accountability, and service to others guide how we do business. We work to show up when we say we will, explain your options clearly, and treat your home with respect from the moment we arrive.
Finally, we stand behind every job with a 100 percent satisfaction guarantee on all our work. For new installations, that guarantee can include the option of a full refund for up to one year if you are not delighted with your experience. That same commitment carries into our maintenance visits, where our goal is for you to feel your money was well spent.
What Furnace Maintenance Includes
Many homeowners know they should maintain their heating system but are not always sure what actually happens during a visit. You deserve a clear picture of what our technicians do and why it matters for your home and your furnace.
During a typical tune-up, our technician starts with a full visual inspection of your system. This usually includes the furnace cabinet, venting, accessible duct connections, and surrounding area. We look for signs of wear, corrosion, or safety concerns that should be addressed before the unit works hard through the season.
Next, we move into cleaning and adjustment tasks that help your system run more smoothly. Depending on your equipment, this can involve checking or replacing air filters, cleaning burners, inspecting ignition components, and confirming that moving parts are lubricated where required. A clean and properly adjusted furnace typically runs more efficiently and more quietly.
Safety checks are a key part of every visit. Our NATE Certified technicians evaluate components such as gas connections and flue venting for issues that could lead to leaks or improper exhaust. Electrical connections are tightened and inspected, controls are tested, and key safety switches are verified. These steps help reduce the risk of problems like carbon monoxide entering the home or nuisance shutdowns when you most need heat.
We also test performance. That can include confirming that the system starts, runs, and shuts down as intended, checking temperature differences across supply and return air, and observing the thermostat and control responses. If we notice anything out of range, we let you know and can discuss next steps so you can make an informed decision.
Because Tri-County Air Service is a one-stop provider for HVAC, electrical, insulation, and generators, we are able to look at your comfort more holistically. If we see related issues, for example, an electrical concern near the furnace or insulation gaps affecting how often the system must run, we can point them out and, if you choose, help address them without bringing in multiple contractors.
Throughout the visit, we respect your time and your home. Our team focuses on arriving within scheduled windows, protecting floors where we work, and communicating clearly about what we found before we leave. When we recommend any repair or improvement, we explain why, what your options are, and whether it is something to handle right away or to plan for in the future.
