HVAC Unit Replacement

HVAC Unit Replacement | Heating and Air Conditioning | Hixson

Experience the difference with HEP's expert HVAC unit replacement services in Hixson. Our team is dedicated to ensuring your home stays comfortable all year long by replacing outdated or inefficient systems with reliable, energy-efficient solutions. With a commitment to quality and customer satisfaction, we blend modern technology with proven techniques to deliver seamless, hassle-free installations tailored to your unique needs.

Trust HEP to provide you with peace of mind and superior indoor comfort. Our knowledgeable technicians work quickly and diligently to minimize disruption while enhancing the performance of your heating and cooling system. Enjoy consistent air quality and efficiency that not only keeps your home at the perfect temperature but also helps reduce your energy bills.

What our customers say

Justin was here to service my hvac unit. Good service an really knowledgeable. Definitely will be using these people for all our hvac needs. Thank you hep

Kimberly A.

Chase and Ryan did a great job knew exactly what was wrong with my air had it fixed in mins you guys should call Hep is on the way to get your air conditioning looked at

Charles C.

This week our capacitator went out on our ac unit. Called HEP at 6pm, had a tech arrive by 7pm and my ac was working again by 7:30. Our tech Nathan fisher was very nice, knowledgeable, and got the job done fast.

TheKristinnoah

Had the pleasure of meeting Travis Griffen and his crew to install our new unit. They worked so hard all day and was so polite and courteous while working in the rain and muddy conditions. I highly recommend Hep for any heat and air work that you may need

Robin M.

Richard was here to look into my A/C unit And he was really helpful explain what is the problem and what's he need to fix the problem He is really good in his Job and helpful

20 R.

So get this, I being a single parent decided it was appropriate to stop trying to do everything and hire the Smiley Face crew to tune my HVAC at the change of the season back in April'23. I haven't had working air since. Mainly because I was salty with the service and hadn't had the time to do it myself. Fast forward to June I've had enough of 80+ degrees and call Hep. Justin came through and went above and beyond what anyone could consider reasonable service. 5stars because he did everything the "Happy People" should have and then some. Better still it cost less!

Moira W.

Raeshel was kind, considerate, and professional. Answered all my questions. I will be purchasing our next HVAC unit from HEP. Thanks Raeshel for all your help!

Ben M.

Jacob and Ryan were very professional and did great work very satisfied with the new system and there service

Brenda

Justin was awesome! He quickly diagnosed the problem with our unit, and got the house cooled back down. He was great to talk to and the price was great. I highly recommend HEP and Justin for your home.

Megan P.

Gary, Ryan, and Jacob were awesome. Couldn't have asked for more professional and friendly guys. They replaced my heat pump and got it working great. They deserve a raise. Will be recommending this company

Beverly W.

Reliable HVAC Unit Replacement Across Tennessee

When the temperature swings from humid summers to frosty winters, Tennessee homeowners count on their heating and air conditioning systems to deliver year-round comfort. HEP specializes in full-service HVAC unit replacement that restores efficiency, lowers energy consumption, and keeps indoor environments consistent—no matter what the forecast predicts.

Core Benefits of Choosing HEP for HVAC Replacement

High-efficiency equipment that meets or exceeds ENERGY STAR® standards
Precision load calculations and custom system sizing for each home
Factory-trained technicians with local code and climate expertise
Streamlined installation that minimizes downtime and household disruption
Post-installation testing to verify airflow, refrigerant charge, and thermostat calibration

Why Timely HVAC Replacement Matters

Replacing an aging system is more than just swapping equipment—it’s a proactive investment in comfort, air quality, and operating costs.

Energy Efficiency and Cost Savings

Modern variable-speed compressors and fans adjust output to actual demand, trimming electricity usage.
Advanced coil designs improve heat transfer, reducing run times.
Smart thermostats integrate seamlessly, fine-tuning schedules and detecting inefficiencies.

Indoor Air Quality Improvements

New air handlers accommodate higher-MERV filters without sacrificing airflow.
Optional UV lights and whole-home dehumidifiers help reduce allergens and biological growth.
Fresh-air intakes balance indoor CO₂ and volatile organic compounds.

Environmental Impact

Refrigerants such as R-454B deliver lower global warming potential compared to legacy blends.
Optimized performance lowers carbon footprint through reduced power consumption.

Signs Your HVAC Unit Needs Replacement

Age and Performance Indicators

System older than 10-15 years
Rising monthly energy bills despite routine maintenance
Frequent service calls or hard-to-source replacement parts

Comfort and Airflow Concerns

Uneven temperatures between rooms
Excessive humidity in summer or dry air in winter
Persistent noises—rattling, grinding, or short cycling

Safety and Reliability Red Flags

Cracked heat exchanger leading to possible carbon monoxide leaks
Electrical issues such as tripped breakers or burned wiring
Visible refrigerant leaks or ice buildup on evaporator coil

The HEP HVAC Replacement Process

Initial Assessment

HEP technicians perform a comprehensive inspection that includes:

Manual J heat-load calculation for accurate equipment sizing
Ductwork evaluation for leakage, sizing, and insulation adequacy
Electrical capacity check to confirm proper breaker and wiring support

Equipment Selection

Matching SEER2-rated air conditioners and heat pumps with compatible indoor coils
High-AFUE gas furnaces for cooler Tennessee mountain regions
Dual-fuel hybrid systems tailored to fluctuating utility rates and outdoor temperatures

Professional Installation

Removal and eco-friendly disposal of the old unit
Precision placement of the new condenser, air handler, or furnace
Sealed, insulated duct connections to prevent thermal losses
System evacuation, accurate refrigerant charging, and airflow balancing

Post-Installation Verification

Static pressure testing to ensure optimal airflow
Thermostat programming for comfort and efficiency
Customer walk-through covering maintenance tips and filter change intervals

Service Coverage Throughout Tennessee

HEP’s licensed HVAC teams operate across:

Knoxville and surrounding suburbs
Maryville, Alcoa, and the foothills of the Smokies
Oak Ridge, Clinton, and Anderson County communities
Sevierville, Pigeon Forge, and tourist corridor residences
Expanding service routes through Middle Tennessee hubs

Long-Term Support After Replacement

Preventive Maintenance Plans

Seasonal tune-ups that protect warranty validity
Priority scheduling for any unexpected issues
Multi-point inspections tracking refrigerant levels, blower operation, and safety controls

System Upgrades and Enhancements

Wi-Fi thermostat integrations for smartphone control
Zoning dampers to direct airflow where it’s needed most
Whole-home air purifiers for advanced particulate removal

HVAC technology evolves quickly, and HEP remains committed to bringing Tennessee homeowners the latest comfort solutions backed by precise installation and ongoing expertise. When reliability, energy savings, and consistent comfort are the goals, a professionally executed HVAC unit replacement from HEP stands out as the smart choice.