Unit Replacement Services
Unit Replacement Services | HVAC Unit Replacement | Heating and Air Conditioning | Sewanee
When your old system sputters through another humid Sewanee summer or chilly mountain night, HEP steps in with fast, frustration-free HVAC unit replacement. Our certified technicians size and install high-efficiency equipment that fits your home’s unique square footage and elevation, trimming energy bills while restoring whisper-quiet comfort. From the first on-site assessment to final thermostat calibration, we handle every detail—permits, ductwork upgrades, haul-away—so you can enjoy reliable heating and cooling without the hassle.
Locally trusted since 1981, HEP backs each new unit with transparent pricing, attractive financing options, and a satisfaction guarantee as solid as the Cumberland Plateau. Schedule today and discover why Sewanee homeowners call us the easiest way to swap out the old and welcome in pure, year-round comfort.
FAQs
When should I consider replacing my HVAC unit instead of repairing it?
Most homeowners in Sewanee begin thinking about replacement when their system is 10–15 years old, needs frequent repairs, or experiences a major component failure such as a compressor or heat exchanger. If the repair cost is more than 30–40 % of the price of a new system—or if your utility bills have been steadily climbing due to declining efficiency—replacement is usually the most cost-effective long-term choice. Our technicians can perform a load calculation and cost-benefit analysis to help you decide.
What is the typical cost of a full HVAC unit replacement in Sewanee?
Replacement costs vary with home size, equipment efficiency, and whether ductwork modifications or electrical upgrades are required. As a rough guide, a straight 3-ton heat-pump or gas furnace/AC split change-out in the Sewanee area usually ranges from $6,500 to $11,000, including labor, basic permits, and disposal of the old unit. High-efficiency systems with variable-speed compressors, smart thermostats, or indoor-air-quality upgrades can add $1,500–$4,000. We provide free written estimates and several financing options to fit most budgets.
How long does it take to replace an HVAC system in a residential property?
For most like-for-like replacements, our two-person crew can complete the job in one full day—usually 6–10 hours—covering removal, installation, start-up, and cleanup. Projects that involve new ductwork, significant electrical changes, or tight attic/crawl-space access may extend to two days. We schedule inspections with the Franklin County or Sewanee utility inspectors immediately after completion so you experience minimal downtime.
Will a new HVAC unit really lower my energy bills?
Yes. Modern equipment built to current DOE standards can be 20–40 % more efficient than units installed just 10–12 years ago. Features such as variable-speed blowers, inverter-driven compressors, and smart thermostats allow the system to adjust output precisely to demand, reducing energy waste. Homeowners in Sewanee who switch from 10 SEER equipment to 16–18 SEER often report annual savings of $300–$600, depending on usage and electricity rates.
Do I need any permits or inspections for HVAC replacement in Sewanee?
Franklin County and the University of the South require mechanical permits for any HVAC replacement that involves refrigerant piping, gas lines, or electrical changes. Our office handles the paperwork, pays the permit fees on your behalf, and schedules all required inspections. You will receive copies of the permit and inspection approvals for your records, ensuring code compliance and preserving manufacturer warranty eligibility.
What warranties and maintenance plans come with a new HVAC installation from your company?
All systems we install include a 10-year manufacturer’s parts warranty (registration required within 60 days) and a 1-year labor warranty from our company. You can upgrade to our Comfort Shield Plan, which extends labor coverage to 10 years, provides two precision tune-ups annually, priority service, and 15 % discounts on indoor-air-quality accessories. Enrolling in regular maintenance keeps your warranty valid and maximizes the life and efficiency of your new unit.