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Need urgent HVAC repair or installation in Charlestown? Contact us for quick, reliable service ensuring your home comfort throughout the year.

Struggling with a failing heating system in the dead of winter, or a malfunctioning AC when you need it most? Get the immediate help you need to restore comfort to your home right here. Our local Charlestown professionals provide swift, reliable service for all your comfort needs.
Licensed, insured, and committed to Charlestown’s comfort for over 20 years.
When your air conditioner stops working in the middle of a humid July afternoon, or your furnace quits during a freezing January night, the temperature inside your home can shift from uncomfortable to dangerous in a matter of hours. You do not have time to wait days for a callback or navigate through automated phone menus while your family suffers in the heat or cold. You need a team that understands the urgency of the situation and responds with speed and precision.
Living in this region means dealing with weather that fluctuates wildly. We experience scorching heat waves that put immense strain on cooling units and bitter cold snaps that demand constant performance from heating systems. When these systems fail, it is often because they have been pushed to their limits by the local climate. The frustration of a breakdown is compounded when you cannot find a technician who is available or transparent about the repair process.
Our approach focuses on alleviating that stress immediately. We prioritize urgent calls because we know that restoring climate control is about more than just convenience; it is about safety and peace of mind. Whether you live near the town center or in the surrounding neighborhoods, our technicians are positioned to arrive quickly, diagnose the issue accurately, and provide a lasting fix. We focus on clear communication, so you are never left guessing about when help will arrive or what the solution will cost — schedule service.

Your home relies on a complex network of mechanical systems to keep the air breathable, clean, and comfortable. When one component fails, the entire system can struggle, leading to higher energy bills and uneven temperatures. We cover the full spectrum of climate control needs, ensuring that every part of your system functions in harmony.
Summer humidity in southern Indiana can be oppressive. An air conditioner that is blowing warm air, making strange noises, or cycling on and off frequently is a sign of underlying trouble. These issues rarely resolve themselves and often lead to a complete system seizure if ignored.
We handle everything from minor repairs to full system replacements. If your unit is low on refrigerant, has a frozen evaporator coil, or suffers from a failing compressor, we can identify the root cause. For older units that are no longer efficient, we help homeowners navigate the replacement process, ensuring the new unit is perfectly sized for the square footage of the house. Proper sizing is critical; a unit that is too small will run constantly, while a unit that is too big will shut off too quickly, failing to remove humidity from the air.
As the seasons change, the focus shifts to keeping your home warm. A reliable furnace or heat pump is essential when temperatures drop below freezing. Common issues homeowners face include pilot lights that won't stay lit, cracked heat exchangers, or blowers that refuse to circulate air. A cracked heat exchanger, in particular, is a serious safety hazard that requires immediate professional attention.
We work on all types of heating systems, including gas furnaces, electric furnaces, and heat pumps. Our goal is to ensure your system runs safely and efficiently. We also assist with the installation of smart thermostats, allowing you to have better control over your heating zones and energy usage. If your current system is over 15 years old, we can provide an honest assessment of whether a repair is worth the investment or if a modern, energy-efficient model would save you money in the long run.
Temperature is only one part of the comfort equation. The quality of the air you breathe inside your home is equally important. Dust, pollen, pet dander, and mold spores can circulate through your ductwork, aggravating allergies and respiratory issues. This is especially true in older homes where ductwork may have accumulated years of debris.
Routine maintenance is the best defense against poor air quality and unexpected breakdowns. Regular tune-ups allow us to clean internal components, tighten electrical connections, and lubricate moving parts. This proactive approach extends the lifespan of your equipment and validates manufacturer warranties.
Dealing with contractors can sometimes feel chaotic or disorganized. We have streamlined our service experience to ensure it is simple, transparent, and respectful of your time and property. From the moment you notice a problem to the final handshake, you will know exactly what is happening.
Operating in Charlestown presents specific challenges regarding HVAC systems. The local climate is classified as humid continental, which means we see significant precipitation and humidity throughout the year. This moisture content in the air forces air conditioners to work harder to dehumidify homes in the summer. If your AC unit is not maintained, this excess moisture can lead to mold growth inside the unit or ductwork.
Furthermore, the housing stock in the area varies greatly. We service everything from historic properties with limited space for modern ductwork to new construction homes designed with high-efficiency standards in mind. Older homes often struggle with insulation gaps and drafty windows, which puts a higher load on furnaces during our cold, snowy winters.
Local utility providers, such as Duke Energy, often offer rebate programs for homeowners who upgrade to high-efficiency heat pumps or air conditioners. Navigating these rebates can be confusing, but it is a great way to offset the cost of a new installation. Additionally, permits are often required for significant installations to ensure everything meets local building codes. We handle these logistical details so you do not have to worry about compliance or paperwork.
Finding a contractor you can trust inside your home is a major decision. You need someone who is not only technically skilled but also honest and reliable. We have built our reputation on doing the job right the first time. We do not cut corners, and we do not oversell services you do not need.
Allegiance Heating & Air, LLC. focuses on building long-term relationships with homeowners. We know that if we treat you fairly during a minor repair, you will trust us when it is time for a major replacement. Our technicians undergo continuous training to stay updated on the latest HVAC technology and safety protocols.
We believe that comfort should be accessible and stress-free. When you choose us, you are choosing a partner who cares about your home as much as you do. We are here to ensure your family stays cool in the summer, warm in the winter, and comfortable every day in between — contact our team.
When Charlestown’s weather swings from icy winter lows to humid summer highs, your home’s comfort system becomes more than just a convenience—it becomes a necessity. We know how disruptive a failing furnace or struggling AC can be, especially when temperatures reach dangerous extremes. That’s why our team responds quickly, works with precision, and delivers lasting solutions tailored to your home and climate.
Don’t wait for a small issue to turn into a major breakdown. If your heating or cooling system is struggling—or you simply want a more efficient, reliable setup—contact us today to schedule service, request an estimate, or get immediate help.
MAINTENANCE PLAN
ALLEGIANCE HEATING & AIR, LLC SERVICE CLUB
At Allegiance Heating & Air, LLC, we provideprofessional HVAC maintenance and offer exclusive deals and discounts within our Service Club Membership to those in and around New Albany, IN. Members of Allegiance Heating & Air, LLC Service Club receive the following benefits:


BENEFITS OF THE MANTEINANCE PLAN
One free cleaning on your A/C.
One free cleaning on your furnace.
Priority scheduling.
Free trip fee with service calls.
Reduced after-hours trip fees.
15% discount on parts and labor.
