HVAC Replacement in Indianapolis, IN

Thiele: Where Generations of Knowledge Meet Modern Solutions

Replacing an HVAC system isn’t just about swapping out an old unit for a new one. If your HVAC replacement isn’t handled properly, you could end up with higher energy bills, poor performance, and early breakdowns. That’s why you need an experienced team that gets it right the first time. Here’s why homeowners and businesses across Indianapolis and Central Indiana turn to Thiele Heating & Air Conditioning:

Transparent Pricing With No Surprises

What we quote is what you pay—no unexpected fees, no games or gimmicks, just honest pricing you can trust.

Certified, Insured HVAC Technicians

Our fully certified and insured team ensures your HVAC replacement is done safely, correctly, and up to code.

All-in-One HVAC Services

We don’t just replace systems—we provide long-term HVAC care, from routine tune-ups to emergency repairs.

Money-Saving Maintenance Plan

Our HVAC maintenance plan makes caring for your heating and air conditioning easy with regular maintenance, priority scheduling, and repair discounts.

Authorized Bryant Dealer 

We install energy-efficient Bryant systems built for lasting performance, lower energy costs, and year-round comfort.

A Company Indianapolis Trusts

Our customers keep coming back because of our reliability, quality work, and decades of quality HVAC service. Check out our reviews to see for yourself!

Service Area Across Central Indiana

We serve homes and businesses across Central Indiana, including Indianapolis, Carmel, Fishers, Greenwood, Noblesville, Plainfield, and beyond.

Have questions about your Indianapolis HVAC replacement? Our office is open during normal business hours, and you can always reach us online!

Heating and Air Conditioning Replacement Services

Your heating and cooling needs aren’t the same as your neighbor’s, which is why we replace all types of HVAC systems—whether we originally installed them or not.

Furnace Replacement

If your furnace is on its last legs, you’ve probably noticed inconsistent heating, strange noises, or higher energy bills. Whether you have a gas, oil, or electric furnace, we’ll help you upgrade to a high-efficiency model that heats your home more effectively while using less energy. Our team ensures the perfect fit for your space so you stay warm without worrying about unexpected breakdowns.

Central Air Conditioner Replacement

An aging AC doesn’t just struggle to keep your home cool—it can drive up your utility bills and leave you dealing with uneven temperatures. Upgrading to a modern, energy-efficient unit means faster cooling, quieter operation, and better airflow throughout your home. We’ll handle everything, from proper sizing to expert installation, so you get the most comfortable summer yet.

Heat Pump Replacement

Heat pumps work hard all year long, and after 12–15 years, they can start losing efficiency. If yours is struggling to maintain a steady temperature, switching to a new air-source or hybrid heat pump can bring better performance and lower energy costs. Whether you need it connected to existing ductwork or paired with a furnace for extra efficiency, we’ll set it up right.

Geothermal System Replacement

Geothermal systems can last for decades, but like any system, internal components eventually wear down. If your home isn’t staying as comfortable as it used to, it may be time for an upgrade to the latest geothermal technology. We’ll inspect your loop system, replace outdated parts, and get your energy-efficient heating and cooling back on track.

Ductless Mini Split Replacement

If your mini split isn’t keeping up or seems to be running constantly, it may be losing efficiency. Newer models offer improved zoning, smarter temperature control, and lower energy use, making them a great replacement choice. Whether you need to swap out a single unit or update multiple zones, we’ll make sure your home stays cool and comfortable year-round.

Replacing your HVAC system is a great opportunity to explore different options. We’ll help you find the best system for your home and budget.

Indoor Air Quality Replacement Services

We’re thrilled to see so many homeowners adding indoor air quality (IAQ) products to their homes. These systems help reduce allergens, balance humidity, and improve air circulation—but like any HVAC component, they don’t last forever. 

Air Cleaner Replacement

Over time, air cleaners lose efficiency, allowing dust, pet dander, and airborne particles to circulate more freely. If your home feels dustier or your allergy symptoms are worse, we’ll install a new, high-efficiency air cleaner that works seamlessly with your HVAC system.

Air Purifier Replacement

Air purifiers eliminate bacteria, viruses, and pollutants, but older models may not perform as well as they once did. If your home’s air feels stale or triggers respiratory issues, a replacement unit with advanced filtration and ionization can restore fresher, healthier air.

Dehumidifier Replacement

An aging dehumidifier can lead to muggy indoor air, musty odors, and even mold growth. If excess moisture has become a problem, we’ll install a whole-home dehumidifier that helps maintain the ideal humidity level throughout your home.

Humidifier Replacement

Dry winter air can cause cracked wood, static electricity, and sinus irritation. When your humidifier isn’t delivering enough moisture or needs frequent repairs, we’ll upgrade it to a reliable whole-home system that improves comfort and air quality.

Thermostat Replacement

An outdated thermostat can cause temperature fluctuations and higher energy bills. Upgrading to a smart thermostat allows for precise temperature control, remote access, and automatic adjustments that improve both comfort and efficiency.

UV Light Replacement

UV lights help purify indoor air by targeting bacteria, mold, and other airborne contaminants. Over time, their effectiveness diminishes as the bulbs weaken. Replacing them with a high-output UV system restores powerful air purification and keeps your HVAC system running cleaner.

If you haven’t added indoor air quality solutions yet, now is also a great time to consider them. Whether you need better air filtration, humidity control, or a more advanced thermostat, we’ll help you find the right upgrades for a cleaner, more comfortable home.

Replace Your HVAC System in 3 Easy Steps

A failing HVAC system is frustrating, but replacing it doesn’t have to be. We help you choose the best option for your home, install it quickly and correctly, and make sure everything runs smoothly. Here’s what to expect when you contact our HVAC replacement service:

Step 1: Let’s Talk About Your Options

Give us a call or reach out online, and we’ll make an appointment to go over what’s best for your property. We’ll discuss your budget, efficiency goals, and system preferences, then provide a clear, no-pressure quote with all the details.

Step 2: Professional Installation 

Our certified technicians remove your old unit and install your new system. We handle ductwork connections, electrical setup, and system calibration, getting everything in place for reliable heating and cooling for years to come.

Step 3: Testing, Fine-Tuning, and Customer Walkthrough

Before we consider the job done, we test every component, check airflow, and make sure your system is running at peak efficiency. We’ll also walk you through the features, settings, and maintenance tips so you get the most out of your new HVAC system.

Ready to upgrade? Just get in touch with our team!

Request a Quote for Your HVAC Replacement in Indianapolis, IN

You don’t replace your HVAC system often—maybe once or twice in your lifetime. It’s a big investment, and you deserve a process that feels smooth, stress-free, and worth every penny. At Thiele Heating & Air Conditioning, we bring decades of experience, honest pricing, and expert craftsmanship to every project. We treat you with the respect and care we’d expect in our own homes, delivering a system you can rely on for years to come. If you’re interested in an HVAC replacement in the Indianapolis area, we’re ready to help. Call or use our website to request a consultation!