Heater Upgrades & Replacements in Wiggins, Hattiesburg, and Surrounding Areas
A reliable heating system matters when temperatures dip, even in Mississippi’s short winters. If your furnace or heat pump struggles to keep up or needs repeated repairs, investing in a new system may be the right move. At Tri-County Air Service, we are dedicated to helping our neighbors in Southern Mississippi find the perfect heating solution for their homes and budgets.
We’ve been serving families in Hattiesburg, Wiggins, and surrounding areas since 2005. As a Carrier Factory Authorized Dealer with NATE-certified technicians, we offer trusted products and expert installations that balance comfort, efficiency, and long-term performance. From start to finish, our focus is on making the process clear and stress-free.
Expert Heating System Installation You Can Trust
At Tri-County Air Service, we take pride in delivering heating solutions tailored to your specific needs. From selecting the right system for your home’s size and layout to ensuring proper ventilation and energy efficiency, we handle every step with precision. Our team works with leading HVAC brands and guarantees professional installation that maximizes your system’s performance and lifespan.
Our heating installation services include:
- Comprehensive home heating assessments
- Furnace and heat pump installations
- Ductwork and thermostat setup
- System testing and safety inspections
Trust Tri-County Air Service with Your Heater Replacement
When it comes to installing a new heating system, the quality of the installation is just as important as the quality of the unit itself. A quality installation from our experienced team can help to make sure you are happy with the result.
Here’s what we bring to the table when conducting heating installations:
- Finding the right fit – Our team will measure your home and perform a load calculation to recommend the perfect size and type of heating system. This prevents issues like poor performance and energy waste, so your home is heated correctly and your system lasts longer.
- Transparent pricing – You will receive a free estimate and we will walk you through all of your options, so there are no surprises. We also offer flexible financing and payment plans to make your new heating system dreams a reality.
- Expertise and credentials – Our NATE-certified technicians and years of experience mean we are qualified to handle even the most complex installations. We stay up-to-date on the latest industry standards and techniques to provide you with a high-quality, professional installation every time.
- Respectful service – Our team is committed to treating your home with care. We will handle the entire installation process with a focus on a clean and respectful service, from the moment we arrive to the final walkthrough.
From removing your old unit to installing and testing your new system, Tri-County Air Service handles every detail. We take the time to answer your questions and explain the process so you feel comfortable every step of the way.



