AC Services

We work on a wide variety of cooling systems, including central air units, heat pumps, ductless mini-splits, and packaged systems. Our technicians are trained to service equipment from all major brands, and as a preferred dealer for Lennox and Mitsubishi, we stay updated on the latest technology and repair standards. Whether your system is brand-new or several decades old, we’re able to diagnose issues accurately and provide long-lasting solutions. When homeowners come to us for help selecting a new AC unit in Knoxville, TN, we use this broad experience to guide them toward options that fit their comfort needs.

We use a detailed evaluation process to determine the correct system size. This includes reviewing your home’s square footage, insulation quality, window placement, existing ductwork, and layout. By analyzing these factors, we ensure the system we recommend isn’t too large or too small, helping prevent short cycling, uneven cooling, and wasted energy. Proper sizing also supports long-term reliability and comfort throughout every season. When homeowners are preparing for a new AC unit in Knoxville, TN, we make sure they receive accurate recommendations based on real measurements and performance needs.

Yes. Our team looks for issues that may be causing your AC to work harder than necessary. We inspect airflow, ductwork condition, thermostat accuracy, and overall system performance. When needed, we perform cleaning, tune-ups, or component adjustments that help reduce energy waste. Even small improvements can lead to noticeable savings. We also help homeowners understand what habits and settings support efficient cooling. For customers considering a new AC unit in Knoxville, TN, we explain which modern features—such as variable-speed operation or higher efficiency ratings—can result in even greater long-term energy reductions.

You can call us anytime. We offer 24-hour emergency service for urgent cooling issues because AC failures often happen during the hottest parts of the year. Our technicians arrive equipped to diagnose the problem quickly and perform immediate repairs whenever possible. We understand how stressful it can be when temperatures rise and your system stops working, so restoring comfort safely and efficiently is always our priority. When a breakdown makes you consider replacing your system, we can also discuss whether a new AC unit in Knoxville, TN may be the more cost-effective solution.

Yes. We provide a 100% satisfaction guarantee on our services, and equipment installations are backed by manufacturer warranties. Our team takes time to explain what’s covered so you feel confident in your investment. As Knoxville’s oldest heating, cooling, electric, and plumbing company, we stand behind the quality of our work and the products we install. Whether we’re repairing an existing system or helping you choose a new AC unit in Knoxville, TN, our commitment to dependable service remains the same. John H Coleman Co has built its reputation on work that holds up over time.

We recommend annual maintenance to keep your system operating efficiently. Ideally, this should be done before heavy usage begins so we can catch early signs of wear, clean essential components, and ensure everything is running safely. Regular maintenance helps prevent unexpected breakdowns, supports energy efficiency, and can extend your system’s lifespan. Homeowners who maintain their systems consistently often notice better performance during the hottest months. If you’re preparing for a new AC unit in Knoxville, TN, ongoing maintenance will also help protect your investment and keep it performing at its best.

Frequent repairs, rising energy bills, uneven temperatures, and outdated refrigerant are all signs that your system may be reaching the end of its lifespan. Older units often struggle to maintain consistent cooling, especially during long stretches of high heat. When we evaluate your system, we look at age, repair history, current performance, and safety issues to determine whether repair or replacement is the better choice. If replacement is recommended, we explain the benefits and features of a new air conditioner so you can make an informed decision.

Yes. Ductwork plays a major role in overall comfort and system efficiency. Leaks, blockages, and improper insulation can all lead to uneven temperatures and additional strain on your AC system. We inspect your ducts for damage and recommend solutions that support better airflow and energy efficiency. Properly functioning ductwork also helps prolong the life of your equipment. Ensuring your ductwork is in good shape will help the system operate more effectively from the start.

We work hard to schedule customers promptly, even during the busiest parts of the cooling season. Our team expands service availability during summer to meet higher demand, and we prioritize homes with urgent cooling needs. Whether you need a repair, maintenance visit, or installation, we strive to minimize wait times and keep your home comfortable.