- HEP HVAC
- Air Conditioning

Air Conditioning
Air Conditioning | Heating and Air Conditioning | Chattanooga
When a Chattanooga summer flirts with triple-digit temps, HEP’s certified comfort pros are ready to swoop in with fast, friendly air-conditioning service. From precision tune-ups that squeeze every ounce of efficiency out of your existing system to same-day repairs backed by fully stocked trucks, we do whatever it takes to keep your home cool and your energy bills low. Need a new unit? We’ll size, install, and fine-tune a high-efficiency system that fits your space—and your budget—while our straightforward pricing keeps surprises off the invoice.
HEP has spent more than two decades earning the trust of Chattanooga families, which is why every service call comes with honest advice, 24/7 emergency support, and a satisfaction guarantee as solid as Lookout Mountain. Whether you’re battling humidity, uneven cooling, or a total AC meltdown, call the team that handles it all—Heating, Electrical, Plumbing… and reliably refreshing comfort.
What our customers say
Expert Air Conditioning Service in Chattanooga
Comfort in the Tennessee Valley hinges on dependable cooling that can withstand sultry summers and sudden spring heatwaves. HEP’s air conditioning division focuses exclusively on providing homeowners and businesses in Chattanooga with meticulous service, advanced diagnostics, and system upgrades that maximize energy efficiency while preserving indoor comfort all year long.
Understanding Chattanooga’s Climate and HVAC Demands
Humid Subtropical Challenges
Chattanooga sits in a humid subtropical zone, which means high dew points from late April through early October. This moisture intensifies the perceived temperature, forcing residential and commercial air conditioners to perform both sensible cooling (temperature reduction) and latent cooling (humidity removal). Units sized or installed without this dual burden in mind struggle to deliver comfort, run longer cycles, and incur higher energy costs.
Seasonal Temperature Swings
Although summer receives most attention, winter in Chattanooga delivers sudden cold snaps that can shock systems unprepared for the workload transition. Temperatures regularly bounce between mild 60 °F afternoons and freezing nights within a 24-hour window. HEP technicians select equipment and tune system controls to handle such volatility, ensuring that compressors, reversing valves, and auxiliary heat elements engage seamlessly when conditions change.
HEP’s Comprehensive Air Conditioning Solutions
Precision Diagnostics and Inspection
Every service call begins with a multi-point inspection that addresses:
- Refrigerant pressures and superheat/subcool measurements
- Blower motor amperage and capacitor performance
- Evaporator and condenser coil cleanliness
- Static duct pressure and overall airflow balance
- Electrical connections, fuses, and safety switches
Advanced infrared imaging and digital manifold gauges allow HEP specialists to pinpoint hard-to-spot inefficiencies that compromise comfort or inflate utility bills.
Energy-Efficient System Upgrades
For aging equipment, rising repair frequency often signals the moment for an upgrade. HEP’s comfort consultants evaluate:
- Existing ductwork integrity
- Proper load calculations using Manual J methodology
- Correct matching of indoor evaporator coils and outdoor condensing units
- Potential for inverter-driven compressors or variable-speed blower motors that modulate output instead of relying on wasteful on/off cycling
Recommendations emphasize Seasonal Energy Efficiency Ratio (SEER2) ratings suitable for Chattanooga’s climate and TVA energy rebates, while also considering noise levels, maintenance accessibility, and smart thermostat compatibility.
Preventative Maintenance Programs
Consistency is crucial to peak performance. HEP offers seasonal tune-ups that include:
- Coil cleaning with non-acidic foaming agents
- Drain line flushing to prevent condensate backups
- Filter replacement or washable media servicing
- Verification of refrigerant charge within manufacturer tolerances
- Tightening of high-voltage lugs and low-voltage control wiring
These checklists not only avert mid-season breakdowns but also extend equipment life spans by reducing mechanical stress.
Emergency AC Repair Services
Even well-maintained systems occasionally falter during extreme heatwaves. HEP maintains a fleet of fully stocked service vehicles, enabling technicians to address:
- Compressor hard starts or failures
- Fan motor breakdowns
- Capacitor or contactor burnouts
- Low refrigerant due to micro-leaks
- Thermostat communication errors
Rapid response curtails secondary damage, protects indoor air quality, and restores comfort promptly.
Heating Capabilities for Year-Round Comfort
Furnace Installation and Repair
Natural gas and high-efficiency condensing furnaces remain common across Hamilton County. HEP technicians handle combustion analysis, draft inducer diagnostics, heat exchanger inspections, and proper gas valve calibration to maintain safe and efficient operation.
Heat Pump Services
Dual-fuel and conventional heat pumps present a single-system solution for Chattanooga’s mild winters and hot summers. Services include defrost control adjustment, reversing valve troubleshooting, and auxiliary heat balance to ensure your system leverages ambient warmth before activating electric strips or gas backup.
Indoor Air Quality Enhancements
Proper heating and cooling go hand-in-hand with clean, breathable air. Options such as whole-house humidifiers, UV light disinfection, and media air cleaners can integrate with existing HVAC equipment, reducing allergens, mold spores, and static electricity during the heating season.
Benefits of Choosing a Full-Service HVAC Provider
- Coordinated heating and cooling strategies for maximum system synergy
- Deeper familiarity with local permitting requirements and Tennessee Valley Authority energy programs
- Streamlined maintenance scheduling across all mechanical systems
- Unified warranty support for parts, labor, and manufacturer coverage
With one provider accountable for both sides of the comfort equation, homeowners see fewer scheduling conflicts, consistent workmanship standards, and holistic system performance.
Key Components HEP Technicians Address During AC Service
Refrigerant Management
Proper charge levels determine evaporator coil temperature and latent moisture removal. Under-charged units freeze coils, while over-charged ones elevate head pressure and strain compressors.
Airflow Optimization
Balanced supply and return airflow protects heat exchangers, boosts SEER performance, and minimizes hot or cold spots within the home.
Electrical Integrity and Safety
Loose terminals and aging contactors create resistance and heat. Thermography reveals hotspots before they cause nuisance trips or catastrophic component failure.
Smart Thermostat Integration
Technicians update firmware, calibrate indoor sensors, and map out zoning profiles to align occupant schedules with energy-saving setbacks.
Signs Your Chattanooga Home Needs Professional AC Attention
- Warm air blowing from supply vents during cooling mode
- Noticeable humidity even when the system is running
- Short cycling that prevents adequate dehumidification
- Ice formation on indoor coil or refrigerant lines
- Unusual odors suggestive of microbial growth in the condensate pan
- Spikes in electric bills without changes in thermostat settings
The Impact of Regular Maintenance on Utility Bills
Small adjustments, such as ensuring a washable filter remains free of debris, can improve static pressure readings by up to 0.10 in. w.c., translating into a 7–10 % decrease in blower motor energy consumption. Clearing a partially clogged condensate drain stops water from dripping onto insulation and sheetrock, preventing costly repairs. Combined, these proactive measures safeguard budgets while delivering improved temperature control.
Sustainability and Eco-Friendly HVAC Practices
SEER Ratings and Equipment Selection
Choosing equipment rated 17 SEER2 or higher cuts kWh usage, easing strain on the TVA grid during peak-demand days. HEP evaluates the payback timeline to ensure homeowners see tangible financial benefits within the expected life of the system.
Responsible Refrigerant Handling
Technicians follow EPA Section 608 guidelines, capturing refrigerant with certified recovery units. By preventing atmospheric release, the team helps slow ozone depletion and global warming potential associated with older refrigerants.
Indoor Air Quality in the Tennessee Valley
Humidity Control
Average summer dew-point readings above 70 °F can foster mold growth behind walls and in attic spaces. Properly sized AC units combined with whole-home dehumidifiers maintain relative humidity between 40 % and 55 %, the sweet spot for occupant comfort and building preservation.
Filtration and Purification
Pollen counts spike every spring as river valleys funnel allergens through the metro area. MERV-13 media, electronic air cleaners, and activated carbon add-ons capture particulate matter and absorb lingering odors from local industrial activity or seasonal wildfires.
What to Expect During a Typical HEP Service Visit
A uniformed technician arrives and:
- Reviews homeowner concerns to establish service priorities
- Shuts off power at the disconnect to ensure safety
- Removes access panels for visual inspection of internal components
- Connects digital gauges and measures refrigerant pressures, superheat, and subcool readings
- Tests capacitors with microfarad meters and inspects relays for pitting
- Photographs any worn or damaged parts to share with the homeowner
- Cleans coils, clears drains, lubricates motors where applicable
- Restores power, monitors system through a complete cooling cycle, and verifies thermostat accuracy
By the end of the visit, homeowners receive a detailed report outlining findings, corrective actions taken, and future recommendations.
Local Building Codes and HVAC Compliance in Chattanooga
Permit Requirements
HVAC replacements involving equipment, duct modifications, or electrical upgrades typically require a permit from the Chattanooga Land Development Office. HEP coordinates permit acquisition, ensuring that all work meets mechanical code standards and passes inspection.
Inspection Protocols
Inspectors verify proper equipment clearances, confirm breaker sizing, and check for adequate combustion air on gas appliances. HEP technicians remain onsite during final inspection to address any clarifications promptly, streamlining approval and preventing project delays.
How HEP Supports Commercial Clients
Light Commercial HVAC
Small offices, retail storefronts, and multifamily complexes rely on rooftop units (RTUs) and split systems with higher static pressure demands. HEP handles curb adapter sizing, economizer setup, and building automation integration to reduce operating costs and enhance tenant comfort.
Server Room Cooling
Localized cooling protects sensitive electronics from heat-induced failure. Precision-temperature ductless systems maintain tight tolerances, while redundancy planning ensures climate control remains uninterrupted even in a primary equipment outage.
Comfort Optimization Tips for Homeowners
- Vacuum supply registers and return grilles quarterly to maintain airflow
- Keep landscaping at least two feet away from outdoor condensing coils
- Replace or clean air filters every 30–60 days during peak cooling season
- Seal attic penetrations and add insulation to reduce thermal load
- Deploy ceiling fans in counterclockwise rotation to augment evaporative cooling on skin
- Program thermostat setbacks during daytime absences to reduce run time
- Schedule duct inspections every five years to locate leaks and verify insulation integrity
Ductwork Rehabilitation and Sealing
The Hidden Energy Drain
Leaky or poorly insulated ducts can squander up to 30 % of conditioned air before it ever reaches living spaces. Chattanooga’s crawl spaces and attics experience temperature extremes, intensifying energy loss when ductwork lacks proper sealing or R-value.
HEP’s Duct Restoration Process
- Pressurize the duct system and perform leak testing with calibrated airflow meters
- Identify gaps using aerosolized sealants or mastic applications
- Replace crushed or undersized flex sections with rigid metal or high-performance flex rated for low friction loss
- Insulate accessible trunks and branches to at least R-8, exceeding minimum code when possible
Restored ductwork improves comfort consistency, alleviates strain on HVAC equipment, and decreases airborne contaminants pulled from unconditioned spaces.
Advanced Thermostat and Zoning Technologies
Dynamic Comfort Control
Modern smart thermostats learn occupant patterns and adjust setpoints automatically, reducing demand during unoccupied periods without sacrificing comfort when everyone returns. Integration with weather forecasts enables pre-cooling ahead of heat spikes to maintain efficiency.
Multi-Zone Solutions
Larger homes often exhibit temperature stratification. HEP installs in-duct motorized dampers and wireless or wired zone sensors that:
- Allow independent temperature settings for each floor or occupied zone
- Prevent over-conditioning rarely used guest rooms
- Enhance overall system life by cycling compressors and blowers only where needed
Heat Pump Advances Tailored to Chattanooga
Variable-Capacity Compressors
Inverter-driven compressors modulate output from 30 % to 100 %, matching capacity precisely to the heat load. Benefits include:
- Reduced humidity due to longer, lower-speed run cycles
- Quieter operation, especially at night
- Superior efficiency in part-load conditions prevalent during shoulder seasons
Enhanced Cold-Climate Performance
Technological improvements in vapor injection and optimized refrigerant circuits allow heat pumps to maintain reliable heat output even when temperatures dip into the mid-20s °F, minimizing auxiliary strip heat usage and lowering winter electricity consumption.
Participation in Local Energy Incentive Programs
TVA EnergyRight Solutions
The Tennessee Valley Authority offers rebates and low-interest financing for qualifying high-efficiency HVAC installations and duct sealing projects. HEP assists homeowners with documentation, load calculations, and equipment verification to ensure eligibility.
Home Energy Scoring
Through cooperation with local municipal utilities, HEP provides complete home energy assessments that generate an efficiency score. These reports outline prioritized upgrades, estimated energy savings, and carbon footprint reduction projections, helping property owners make informed decisions backed by data.
Mitigating Noise and Vibration
Outdoor Unit Placement Strategies
Condenser placement influences both efficiency and acoustic comfort. HEP considers:
- Airflow clearance on all sides of the unit
- Proximity to bedrooms or outdoor living areas
- Prevailing wind patterns that could recirculate hot exhaust air
Isolation Pads and Sound Blankets
Technicians can install composite rubber isolation pads beneath condensing units to dampen vibration. Optional compressor sound blankets further curb decibel levels, making evening porch gatherings more enjoyable while keeping neighbors happy.