Thiele

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About Thiele
Thiele has earned a 4.8-star average across 658 homeowner reviews in Indianapolis, establishing itself as one of the most reviewed HVAC contractors in the city. Licensed and locally operated, the company handles heating and cooling systems for residential customers throughout the Indianapolis metro area, including nearby communities like Carmel, Fishers, and Greenwood. Founded in Indianapolis, Thiele built its reputation on same-day emergency response and transparent diagnostics, core principles visible in nearly every reviewer comment.
As a certified Bryant dealer, Thiele installs and services the full spectrum of residential equipment: furnaces, heat pumps including geothermal systems, central air conditioning, and ductless mini-split setups. The company stands out for its dual-fuel HVAC solutions, which pair a heat pump with a furnace for optimal efficiency across Indiana's variable seasons. Indoor air quality offerings include UV light installation, whole-home humidifiers and dehumidifiers, and advanced air purification, a service category that earned specific praise in customer feedback. Their maintenance plans keep systems running efficiently year-round.
Customer stories reveal a team that arrives prepared and communicative. Alexander Hutton's furnace failed during a winter storm; technician Jackson reached his home within three hours and had the system operational again, even leaving troubleshooting tips for future issues. Shaylah Corado's review describes Jackson conducting a thorough evaluation when utility bills spiked, examining the outdoor unit, thermostat, and auxiliary equipment before recommending next steps. Kris Deck's experience highlights a technician who handled a deferred maintenance situation without pressure, simply explaining why annual service matters and demonstrating filter replacement. These scenarios reflect the company's emphasis on diagnostic clarity over upselling.
What Customers Say
100 percent of reviewers awarded 4 or 5 stars. Five reviewers specifically mention same-day or hours-long response times for emergency furnace failures. Three of four detailed reviews cite technician Jackson by name, praising his diagnostic thoroughness and practical guidance.
Working Hours
| Sunday | Closed |
| Monday | 7:30 AM–8 PM |
| Tuesday | 7:30 AM–8 PM |
| Wednesday | 7:30 AM–8 PM |
| Thursday | 7:30 AM–8 PM |
| FridayToday | 7:30 AM–8 PM |
| Saturday | 8 AM–5 PM |
Services
Furnace Repair & Replacement
Diagnostics, repair, tune-up, and full replacement for gas and electric furnaces, emergency service available.
Heat Pump & Geothermal Systems
Installation, repair, replacement, and maintenance for standard and geothermal heat pump configurations.
Air Conditioning Service
AC installation, repair, replacement, tune-up, and emergency cooling repairs during summer heat waves.
Ductless Mini-Split Installation
Service for ductless mini-split systems including installation, maintenance, and repair.
Indoor Air Quality Solutions
UV light installation, whole-home humidifiers, dehumidifiers, air cleaners, purifiers, and zoning controls.
Thermostat & Control Systems
Thermostat repair, installation, and smart control integration for efficient system management.
Annual Maintenance Plans
Scheduled tune-ups and filter changes that keep heating and cooling systems running efficiently year-round.