Heating Services in Indianapolis, IN

Furnace problems often show up as uneven heating, unusual noises, or the system running without keeping up. Gas furnaces may have issues with burners or ignition systems, while oil units can struggle with clogged filters or poor fuel delivery. Electric models may experience failed heating elements or control problems. Our furnace repair services start with a detailed inspection to find the source of the issue and get your system back to working condition. Fixing problems early helps avoid larger and more expensive heating repairs.

A new heating installation requires careful planning to ensure the system matches the home’s size and layout. If a furnace is too small, it will run constantly; if it’s too large, it will cycle on and off and waste energy. We install gas, oil, and electric furnaces, set up ductwork when needed, and confirm venting and safety systems are correct. You can also benefit from choosing modern energy-efficient models that deliver steady comfort while reducing long-term heating costs. A proper furnace installation by our team ensures years of dependable heat.

Regular heating maintenance keeps furnaces safe, efficient, and dependable. A furnace tune-up includes cleaning the burners, checking ignition parts, and inspecting filters, controls, and airflow. Oil furnaces require nozzle and filter service, while electric units benefit from testing elements and electrical components. During your furnace maintenance, we also clear condensate drains and make sure all safety functions are operating correctly. These steps improve efficiency, lower energy bills, and reduce the chance of unexpected breakdowns. 

Even with proper maintenance, furnaces usually last between 15 and 20 years. Systems nearing that age often need frequent repairs, struggle to heat evenly, or become less efficient. When a furnace replacement is the best choice, we help you compare options based on your home’s needs and budget. Choices include gas furnaces with high efficiency ratings, durable oil models, and electric systems where appropriate. A new furnace improves comfort, reduces operating costs, and gives you peace of mind that you’ll have reliable heat.

Even though geothermal systems are built to last, problems can still occur. Common geothermal repair needs include leaks in underground loops, circulation pump failures, or thermostat control issues. Our heating experts inspect both the indoor unit and the ground loop system to locate the problem. Once identified, we make repairs that restore efficiency and performance. By addressing geothermal repair issues promptly, you can protect your investment and avoid higher energy bills or long-term system damage.

A geothermal installation starts with evaluating your property to determine whether vertical or horizontal loops will work best. Vertical systems require deep drilling, while horizontal loops are installed in long trenches. We also size the system correctly to match the heating and cooling load of your home. Our geothermal installation service includes planning, excavation, loop installation, and connecting the system to your home’s HVAC equipment. With proper setup, you can expect decades of reliable heating and cooling performance.

Even with their long lifespan, geothermal systems benefit from regular service. A geothermal tune-up includes checking loop pressure, flushing lines if needed, testing pumps, and verifying system controls. We also review thermostat settings to make sure heating and cooling modes are switching properly. Regular geothermal maintenance improves efficiency and helps the system operate smoothly through every season. Scheduling an annual geothermal tune-up ensures your system continues to provide steady, low-cost comfort year after year.

Geothermal systems have some of the longest lifespans in the industry. Loops often last 50 years or more, while the indoor equipment may need to be replaced after 20–25 years. When efficiency drops or major parts fail, it may be time for geothermal replacement. We assess whether the loop can be reused and replace the indoor unit with a new, energy-efficient model. A geothermal replacement ensures your home continues to benefit from one of the most reliable and efficient heating options available today.

Thiele Heating & Air Conditioning provides warranties based on the type of work completed. New heating installation services include strong manufacturer warranties, especially when you choose high-efficiency Bryant systems. Our heating repair services also come with workmanship guarantees so you know the job was done right. If you’d like details on coverage for your specific system, our team will explain all options before work begins.

When your system fails, we know you can’t wait. Thiele offers fast emergency heating service throughout the greater Indianapolis area. In most cases, our heating contractors are able to respond the same day you call. Whether it’s a furnace, boiler, or heat pump, we provide reliable HVAC heating services to restore heat and keep your home safe.

Along with home heating services, Thiele provides a full range of HVAC services, including air conditioning services, indoor air quality upgrades, and preventative maintenance plans. If you need service for heating systems, cooling equipment, or an HVAC system upgrade, we can help.

We service all makes and models of heating and cooling equipment. Thiele can install any brands you prefer, but we are proud to be Bryant Factory Authorized Dealers. This distinction shows our technicians meet the highest industry standards. If you’re concerned about a specific brand of furnace, boiler, or heat pump, give our office a call and we’ll be happy to recommend the best solution.