Indianapolis, IN HVAC Services

Building a new home or adding central heat for the first time? We make it simple to choose the right system and get it installed the right way. Gas furnaces are great for steady, whole-home warmth. Heat pumps give you both heating and cooling in one energy-efficient setup. Want more control over different rooms? Ductless mini splits are perfect for heating bonus rooms, finished basements, home offices, or additions where running ductwork isn’t practical or possible.

We also install dual-fuel systems, which pair a heat pump with a gas furnace. The heat pump handles most of the heating to save energy, and when temperatures drop really low, the furnace kicks in to keep your home warm without missing a beat. No matter which system you choose, we’ll make sure it’s sized right and installed properly.

• Furnace Installation
• Boiler Installation
• Heat Pump Installation
• Geothermal Installation
• Ductless Mini Split Installation
• Dual-Fuel HVAC Installation

When your heat goes out—or something else is clearly wrong—you need help fast. Maybe your home isn’t warming up like it should, or your system’s making strange noises and running non-stop. Whatever the case, you shouldn’t have to wait around in the cold.

At Thiele, we handle routine and emergency heating repairs for all kinds of systems. That includes gas furnaces that won’t ignite, boilers with pressure issues, heat pumps stuck in the wrong mode, and ductless mini splits that won’t respond at all. We also troubleshoot uneven heating, poor airflow, short cycling, dirty sensors, and failing components. No matter the setup, we’ll find the issue, explain what’s going on, and get your heat working again.

• Furnace Repair
• Boiler Repair
• Heat Pump Repair
• Geothermal Repair
• Ductless Mini Split Repair

The best kind of heating system is the one you never have to think about. That’s what routine maintenance is for. At Thiele, we handle the behind-the-scenes work that keeps your home warm, efficient, and problem-free all season long.

Furnace maintenance helps prevent breakdowns by catching dirty burners, worn ignitors, or airflow restrictions before they turn into big issues. Heat pump maintenance keeps your system running efficiently year-round with refrigerant checks, coil cleaning, and electrical testing. And for zoned comfort, our ductless mini split maintenance includes deep cleaning, filter service, and full system inspections to keep each room heating like it should.

• Furnace Tune-Up
• Heat Pump Tune-Up
• Ductless Mini Split Tune-Up

Most heating systems last around 15 to 20 years. But over time, they start needing more repairs, use more energy, and just don’t heat the way they used to. If your furnace or heat pump is struggling to keep your home comfortable—or costing you more than it should—it might be time to replace it.

At Thiele, we replace all kinds of systems, including gas, electric, and oil furnaces, heat pumps, and ductless mini splits. We’ll help you pick a new unit that fits your home, works for how you live, and stays within your budget. The goal is simple: better heat, lower bills, and a more comfortable home you don’t have to think twice about.

• Furnace Replacement
• Heat Pump Replacement
• Ductless Mini Split Replacement

Air purifiers work alongside your HVAC system to remove dust, allergens, pet dander, mold spores, and other airborne particles from the air you breathe. They’re a great option for families with allergies, asthma, or anyone wanting cleaner, healthier indoor air.

We install whole-home air purifiers that connect directly to your ductwork, so every room gets the benefit—not just one area. Our team also repairs existing systems and helps you choose the right model for your home and system size. If you want to reduce pollutants and improve your indoor air quality, an air purifier is a smart upgrade.

• Air Purifier Installation
• Air Purifier Repair

Air cleaners use advanced filtration to capture airborne particles like dust, smoke, pollen, and pet dander as air moves through your HVAC system. They’re ideal for households with allergies, respiratory concerns, or just anyone looking for fresher, cleaner air throughout the home.

We install whole-home air cleaners directly into your return ductwork, so they work every time your system runs. These systems go beyond standard filters to trap much smaller particles. Thiele also provides air cleaner repairs and replacements, and we’ll help you choose the right unit based on your home and existing HVAC setup.

• Air Cleaner Installation
• Air Cleaner Repair

Too much moisture in the air can make your home feel sticky, musty, and uncomfortable—especially in the summer. Whole-home dehumidifiers work with your HVAC system to pull excess humidity out of the air before it spreads through your home.

They’re a good choice if you’ve noticed damp basements, mildew smells, condensation on windows, or allergy flare-ups. Drier air also helps your AC run more efficiently. We install dehumidifiers that connect directly to your ductwork and offer full repair services to keep everything running smoothly.

• Dehumidifier Installation
• Dehumidifier Repair

When the heat’s running all winter, the air inside your home can get way too dry. Whole-home humidifiers work with your HVAC system to add just the right amount of moisture to every room—not just one spot.

They’re great for easing dry skin, sinus problems, sore throats, and even helping protect wood floors and furniture from drying out or cracking. If your home feels dry and uncomfortable in the colder months, a humidifier can make a big difference. We install and repair whole-home humidifiers and help you find the setup that works best with your system.

• Humidifier Installation
• Humidifier Repair

A lot of heating and cooling problems start at the thermostat. If it’s not reading the temperature correctly or isn’t sending the right signals, your whole system can run at the wrong time—or not at all.

We see issues like faulty sensors, loose wiring, or old units that just can’t keep up with today’s systems. In many cases, we can repair the thermostat and get everything working properly again. But if yours is outdated or not working at all, we can install a new smart thermostat that gives you better control, improved comfort, and energy savings from anywhere.

• Thermostat Installation
• Thermostat Repair

UV lights are installed inside your HVAC system to kill mold, bacteria, and viruses on the coils and in the air as it passes through. They’re a great option for households with allergy sufferers, respiratory concerns, or anyone looking to cut down on airborne germs.

These lights work quietly in the background to keep your indoor air cleaner and your system more efficient by preventing organic buildup. We install UV HVAC lights directly into your ductwork or near your coil, depending on your setup.

• UV Light Installation
• UV Light Repair

HVAC zoning divides your home into separate areas, each with its own thermostat and airflow control—so you can heat or cool only the rooms you’re using. It’s ideal for larger homes, multi-level layouts, or families who just can’t agree on the perfect temperature.

Zoning systems help reduce energy waste and improve comfort by giving you more control, room by room. We set up zoning using smart thermostats and motorized dampers inside your ductwork. Whether you’re adding zones to an existing system or planning one for a new install, Thiele will design and install it to match your home’s layout and your preferences.

• HVAC Zoning Installation