When your business depends on comfort and reliability, you need an HVAC partner you can count on. At J.C.'s Heating & Air, we deliver full-service commercial HVAC solutions in Knoxville, TN, designed to keep your operation running smoothly in every season.
With over 35 years of experience, we serve businesses of all sizes—from local offices and medical clinics to retail stores, schools, and light industrial spaces. Our team is trained to install, service, and repair all major HVAC systems, including rooftop units (RTUs), heat pumps, ducted systems, and custom comfort solutions tailored to your commercial space.
As a Daikin Elite Dealer and BBB A+ rated company, we're proud to be Knoxville's go-to commercial HVAC contractor for dependable service, quality equipment, and long-term performance.
We know that every commercial property has its own unique heating and cooling requirements. That's why we offer customized HVAC services that focus on energy efficiency, system reliability, and occupant comfort—while staying aligned with your operational goals and budget.
We work directly with building owners, property managers, general contractors, and facility maintenance teams to design and deliver high-performance commercial systems that meet building codes and exceed expectations.
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Whether you're building a new commercial space or replacing outdated equipment, we'll help you design and install a system that's built to last. We specialize in energy-efficient, space-conscious solutions that are properly sized, professionally installed, and easy to maintain.
We offer a full line of high-quality commercial HVAC systems, including:
Perfect for small offices and retail spaces, providing efficient heating and cooling with flexible installation options.
RTUs up to 25 tons, ideal for larger commercial spaces with rooftop access and space constraints.
Ducted and ductless heat pump options for efficient year-round comfort in commercial environments.
Custom zoning solutions that allow different areas of your building to maintain independent temperature settings.
Specialized systems designed for temporary or modular commercial structures with unique requirements.
Our team handles every step—from equipment selection and duct layout to final testing and calibration. We also offer custom sheet metal fabrication in-house, allowing us to build exact-fit components for faster, cleaner installations.
Request a Commercial HVAC QuoteRooftop units are the workhorses of many commercial HVAC systems. At J.C.'s Heating & Air, we install and service RTUs up to 25 tons, offering solutions that combine heating and cooling in a single, space-saving unit.
If your RTU is aging, inefficient, or failing to keep up with demand, we can recommend and install a new model that improves energy efficiency and indoor comfort—while minimizing downtime for your business.
When your system breaks down, you need fast, professional repairs you can trust. We offer comprehensive HVAC repair services for all major commercial systems, including heat pumps, split systems, and rooftop units.
Our technicians arrive on time, fully equipped, and ready to diagnose and resolve issues quickly—minimizing disruption to your business.
Avoiding downtime and keeping your equipment running efficiently is crucial for any commercial space. That's why we offer custom maintenance plans for commercial HVAC systems—designed to reduce repair costs, extend equipment life, and maintain consistent performance.
Regular tune-ups and comprehensive system inspections to catch issues before they become problems.
Filter replacements and coil cleaning to maintain airflow and system efficiency.
Refrigerant level checks and adjustments to ensure optimal cooling performance.
Thorough inspection of all moving parts to prevent mechanical failures.
Complete electrical system testing to ensure safe, reliable operation.
Thermostat and control system calibration for accurate temperature management.
Airflow testing and ductwork inspection to identify and resolve distribution issues.
Regular maintenance ensures your HVAC system performs when you need it most—keeping your staff, customers, or tenants comfortable while protecting your bottom line.
Schedule Commercial MaintenanceWe understand that each business has unique needs based on its size, usage, occupancy, and operational hours. Our commercial HVAC services are tailored to suit:
We provide design/build services, upgrades, and full system overhauls for any property type.
Managing temperature across multiple rooms or work zones can be a challenge in larger commercial properties. That's why we offer zoned HVAC solutions and smart thermostats that give you precise control over every area of your building.
Let us help you create a smarter, more flexible HVAC system that fits your business.
Healthy indoor air is more important than ever—especially in shared or public spaces. We offer commercial-grade IAQ upgrades to improve air quality, reduce contaminants, and support better occupant wellness.
Cleaner air helps reduce absenteeism, protect equipment, and make your building more inviting for employees and customers alike.
With so many HVAC companies in Knoxville, why do homeowners and businesses continue to trust J.C.'s Heating & Air?
Backed by a team of certified and highly skilled technicians, we’ve served Knoxville and the surrounding areas since 2001 with more than 35 years of experience behind us.
We install and service Armstrong, Ducane, Daikin, and American Standard systems. Our services include custom metal fabrication, duct cleaning, and indoor air quality solutions.
We are an A+ BBB Accredited business and a Daikin Elite Dealer. Our work is backed by a customer satisfaction guarantee.
We always provide honest, upfront pricing with no hidden fees. We also have same-day and emergency service availability so you never have to worry about an unexpected outage.
Contact us today to schedule your heating and air conditioning service in Knoxville, TN.
Prevent costly repairs and ensure your heating and cooling system runs efficiently year-round with our residential HVAC maintenance plans. At J.C.'s Heating & Air, we offer comprehensive tune-ups and seasonal check-ups designed to extend the lifespan of your HVAC system while lowering energy bills. Benefits of our maintenance plan include:
Our maintenance plan members enjoy priority scheduling for repairs and service calls.
We perform regular system inspections to catch issues before they turn into costly repairs.
Routine maintenance improves efficiency for lower energy bills and reduced wear and tear.
We offer discounted repairs and service rates for maintenance plan members.
Sign up for a J.C.'s Heating & Air maintenance plan today and enjoy peace of mind knowing your HVAC system is always running at peak performance.
Find Your Maintenance PlanJ.C.'s Heating & Air proudly serves Knoxville and surrounding areas, including:
If you’re looking for professional HVAC services in Knoxville, TN, and beyond, our team is ready to help.
At J.C.'s Heating & Air, we understand that business owners have many questions about commercial HVAC systems. Below, we've compiled some of the most frequently asked questions about commercial HVAC installation, repair, and maintenance to help you make informed decisions.
We service all major commercial HVAC configurations, including:
If your building has heating or cooling equipment, chances are we can service or replace it.
Signs your system may need replacement include:
We offer free evaluations to help you determine whether repairs or replacement make the most sense.
Yes. We specialize in rooftop HVAC unit (RTU) installation and replacement for small and mid-sized commercial buildings across Knoxville. RTUs are efficient, space-saving, and ideal for offices, retail spaces, and modular structures.
Absolutely. Our commercial maintenance programs are customized for your equipment and usage patterns. Services include seasonal tune-ups, filter changes, coil cleaning, thermostat checks, and refrigerant testing to keep your system operating smoothly all year long.
We recommend seasonal maintenance—twice per year, once before cooling season and once before heating. High-usage environments may benefit from quarterly service. Preventive maintenance helps extend the life of your system and avoid expensive repairs.
Yes. We offer priority response for commercial clients, especially those in critical industries like healthcare, retail, or property management. If your HVAC system goes down, we'll respond quickly to restore comfort and limit downtime.
Proper sizing depends on several factors:
Our technicians will perform a full load calculation to recommend the correct size and system type for your facility.
Yes. We partner with Service Finance and Synchrony to provide flexible financing options for commercial HVAC replacements or upgrades. This helps you manage upfront costs while investing in long-term efficiency and performance.
We work with a wide range of commercial clients, including:
If your business needs reliable heating and cooling, we've got you covered.
We proudly provide commercial HVAC services in:
We're the local, experienced commercial HVAC contractor East Tennessee businesses trust for expert service and dependable results.
When your building's heating and cooling systems need attention, don't trust just anyone—partner with the team that brings over 35 years of experience to every job. At J.C.'s Heating & Air, we specialize in commercial HVAC services in Knoxville, TN, including installation, repair, and maintenance for businesses of every size and industry.
From retail storefronts and medical offices to modular structures, churches, and commercial kitchens, we understand the unique needs of commercial environments. We provide tailored solutions that prioritize energy efficiency, system reliability, and indoor comfort—all while keeping your operational goals and budget in mind.
Need a new system? We install and replace split systems, rooftop HVAC units (RTUs), packaged systems, and ducted or ductless heat pumps. Our in-house custom metalwork fabrication ensures that every component fits perfectly and performs efficiently. And if you're dealing with system failure or inconsistent performance, our team offers fast, accurate diagnostics and repair to minimize downtime.
Our commitment to commercial clients includes:
We're a Daikin Elite Dealer, BBB A+ Accredited, and deeply invested in supporting local businesses with HVAC systems that last—and service you can depend on.
Worried about budgeting for system upgrades? We offer commercial financing options through Synchrony and Service Finance, including:
And if you want to protect your investment, ask about our commercial maintenance plans, which include:
We proudly serve commercial clients in Knoxville, Maryville, Clinton, Oak Ridge, Farragut, and Lenoir City, and we're ready to help your business stay comfortable and energy-efficient year-round.
Call J.C.'s Heating & Air today or schedule your consultation online to learn more about our commercial HVAC services in Knoxville. Let's get started—and keep your business running at peak comfort and performance, season after season.
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