HVAC Services in Middletown, OH

When summer heat hits Middletown, a dependable air conditioner makes all the difference. Whether you need a quick repair or brand-new air conditioning installation for your home, Hill-Air is here with fast, professional air conditioner services that keep you cool when it matters most.

Air Conditioning Installation

Installing a new air conditioning system? We’ll help you choose the right central AC setup based on your home’s size, layout, and energy goals. Every air conditioning installation is done with care by our trained team, and we always use high-efficiency units that deliver strong cooling and lower energy bills from day one.

Air Conditioning Maintenance

Routine AC maintenance keeps your system running smoothly through every heatwave. Our AC tune up appointments include cleaning coils, checking refrigerant, tightening connections, and making sure your thermostat is spot-on. Scheduling regular maintenance is one of the easiest ways to stay cool and avoid surprise breakdowns in the middle of summer.

Air Conditioning Repair

If your air conditioner isn’t doing its job—blowing warm air, making strange noises, or not turning on—give us a call at the first sign of trouble. We handle all types of AC repair and bring the tools and parts to fix most problems on the spot. You get fast, reliable air conditioning service that gets your home cool again quickly.

Air Conditioning Replacement

If your existing system is more than 10–15 years old, breaking down often, or costing too much to run, it might be time for an AC replacement. We’ll walk you through your options and help you choose a new, energy-efficient system that’s the right size and fit for your home. Our skilled team will handle the full air conditioning replacement process from start to finish.

Your air handler is what keeps the air moving through your house. It works with your HVAC system to push warm or cool air through the ductwork and into each room. When it’s working well, your home feels evenly comfortable. We offer full air handler services in Middletown to keep your system running the way it should.

Air Handler Installation

We install new air handlers that match your system and your home’s layout so you get strong, balanced airflow in every room. A proper installation from the start helps your heating and cooling system run more efficiently and last longer.

Air Handler Maintenance

Our maintenance service includes cleaning the blower, changing or cleaning filters, checking the motor, and tightening any loose connections. It’s a quick way to improve your air quality, boost system performance, and avoid costly repairs down the road.

Air Handler Repair

Our technicians are trained to find and fix air handler issues fast, whether it’s a burnt-out motor, a broken fan belt, or just a buildup of dirt slowing things down. We’ll get your system back on track so your home feels comfortable again.

You don’t see boilers in as many homes these days, but they’re still a smart, efficient way to heat your space, especially if you want steady, even warmth without the dryness or noise of forced air. At Hill-Air, we offer complete boiler services in Middletown to keep these systems running strong through every Ohio winter.

Boiler Installation

We install new, high-efficiency boiler systems designed to match your home’s heating needs, whether you’re building from the ground up or adding a system to radiant flooring or baseboards. We’ll walk you through the best options, handle all the setup, and make sure everything is installed safely and correctly.

Boiler Maintenance

Routine maintenance helps your boiler perform better and last longer. During a boiler tune-up, we’ll inspect and clean critical components like burners, heat exchangers, safety controls, and valves. Keeping your boiler in top shape helps you avoid mid-season breakdowns, lower your energy bills, and ensure your heat is ready to go when the weather turns cold.

Boiler Repair

If your boiler isn’t heating properly, making unusual noises, or showing signs of a leak, don’t wait—our expert techs can help. We diagnose boiler issues quickly and handle everything from pressure problems and faulty thermostats to failed components and circulation issues. With the right repair, your system will be safe, efficient, and back to heating your home reliably.

Boiler Replacement

When your boiler is outdated, inefficient, or just can’t keep up anymore, a replacement may be the best move. We’ll assess your current setup, recommend energy-saving options, and install a new boiler that improves comfort and cuts down on energy use. Upgrading your boiler can also help eliminate recurring repairs and make your home more efficient overall.

Ductless mini splits use small, wall-mounted units to deliver heating and cooling directly into each room—no ductwork needed. They’re quiet, efficient, and give you full control over the temperature in individual spaces. At Hill-Air, we offer ductless mini split services in Middletown to install new systems, service existing ones, or replace outdated units.

Ductless Mini Split Installation

Ductless systems can be installed almost anywhere—bedrooms, basements, sunrooms, garages, or home additions—making them ideal when ductwork isn’t an option. These units mount to walls, ceilings, or floors and connect to a small outdoor compressor. We’ll help you choose the right model and zone setup for your ductless mini split installation.

Ductless Mini Split Maintenance

To keep your system running at its best, we provide routine ductless maintenance that includes cleaning washable filters, checking refrigerant levels, clearing drain lines, and inspecting wiring and coils. Regular service helps maintain strong airflow, quiet operation, and energy efficiency, so each room stays comfortable year-round without unexpected repairs.

Ductless Mini Split Repair

If your mini split is leaking, running loudly, or not heating or cooling like it used to, we can help. We diagnose and repair common problems like sensor issues, dirty coils, low refrigerant, or compressor faults. Our technicians are trained on all major ductless brands and come prepared to fix most issues in a single visit.

Ductless Mini Split Replacement

Over time, older ductless units can lose performance or efficiency. If your system is more than 10–15 years old or struggling to keep up, a replacement could lower your energy bills and improve overall comfort. We’ll help you choose a modern, energy-efficient system and handle the entire replacement process—from safe removal to expert installation and testing.

When temperatures drop in Middletown, you need more than just a working furnace—you need one that can heat your whole home evenly, efficiently, and without constant worry. At Hill-Air, we have all the furnace services you need to keep your home warm and your family comfortable. From new installations to routine tune-ups and urgent repairs, we’re here to help you stay ahead of winter.

Furnace Installation

We install new furnaces for homes across Middletown—including new builds, additions, and converted spaces. Our team will help you choose the right size and type of furnace for your layout, and we can add zoning for more customized comfort from room to room. With expert installation, you’ll get consistent heat, better efficiency, and a system that runs the way it should.

Furnace Maintenance

A furnace that’s cared for runs better, lasts longer, and costs less to operate. Our furnace maintenance service includes checking burners, airflow, filters, safety switches, and more. It’s a good way to reduce breakdowns and make sure your heating system works safely and efficiently all winter.

Furnace Repair

If your furnace isn’t heating well—or at all—we’ll get things back on track quickly. Common issues like failed ignitors, blower problems, and airflow restrictions are no problem for our skilled team. We show up on time, explain what’s happening, and get the heat flowing again with professional furnace repair service you can rely on.

Furnace Replacement

If your older furnace has become unreliable or inefficient, it may be time for a replacement. We’ll walk you through your options for a modern, high-efficiency system that heats your home more evenly and uses less energy. Our furnace replacement service ensures your new system is installed safely, correctly, and ready to perform when you need it most.

Heat pumps heat and cool your home by moving heat instead of creating it, which makes them an incredibly energy-efficient HVAC system for Middletown homes. In the winter, they pull heat from the air outside and move it inside; in the summer, they reverse the process to keep your home cool. Our heat pump services in Middletown include new system installation, seasonal maintenance, and expert repair when things go wrong.

Heat Pump Installation

Thinking about switching to a heat pump? A heat pump installation is perfect for people who want a cleaner, more energy-efficient alternative to traditional heating and cooling systems.  They’re also ideal if you’re building a new home, remodeling an older one, or moving away from gas. We’ll help you pick the right size and model for your square footage and layout.

Heat Pump Maintenance

Our heat pump maintenance service is designed to keep things running smoothly and avoid major repairs. We check refrigerant levels, clean the coils, inspect wiring, and make sure your system transitions between heating and cooling like it’s supposed to. With a spring and fall tune-up, you get better performance, fewer surprises, and a longer system lifespan.

Heat Pump Repair

If your heat pump is struggling to keep up—or suddenly not working at all—we’re here to help with a quick heat pump repair. Whether it’s short cycling, blowing the wrong temperature air, or making strange sounds, we’ll pinpoint the issue quickly. From faulty thermostats to reversing valve issues or electrical glitches, we’ve seen it all.

Heat Pump Replacement

Older units can lose efficiency and struggle to maintain comfort, especially during extreme temperatures. We’ll help you compare models, explain the pros and cons, and find a system that fits your home and budget. Then we handle the removal of your old unit, install the new one, and test everything for quiet, reliable, year-round performance.

Whole-home air purifiers work inside your HVAC system to trap dust, allergens, pet dander, and other airborne particles before they circulate through your house. We provide professional air purifier installation that integrates directly with your ductwork for continuous filtration. If your purifier isn’t running like it should, our air purifier repair service can get it back in shape fast.

Carbon monoxide is colorless, odorless, and potentially deadly. That’s why every home with gas appliances or fuel-burning systems should have a working detector. We provide carbon monoxide detector installation in key areas of your home to help alert you to danger and keep your family safe year-round.

Too much humidity can lead to sticky air, musty smells, and even mold growth. Our whole-home dehumidifier installation helps remove excess moisture from your indoor air, making your home more comfortable and healthier. If your system isn’t pulling moisture like it used to, we offer expert dehumidifier repair to restore balance.

Dry winter air can take a toll—dry skin, sore throats, static shocks, and dusty rooms are all common signs your home could use more humidity. We offer a whole-home humidifier installation that works with your HVAC system to add balanced moisture to every room. Already have one, but it’s not helping like it used to? Our humidifier repair service will get it back on track so your home feels healthier and more comfortable.

Media air cleaners go beyond standard filters, capturing more fine particles like smoke, pollen, and pet hair. We handle media air cleaner installation right into your HVAC system and offer media air cleaner repair if the unit needs cleaning, replacement, or servicing.

Your thermostat is what keeps your home comfortable and your energy bills in check. Whether you’re upgrading to a smart thermostat or replacing one that’s malfunctioning, we handle thermostat installation for all types and brands. If it’s unresponsive, inaccurate, or just outdated, our thermostat repair service can restore control quickly so your system runs the way it should.

UV air cleaners add an extra layer of protection by neutralizing airborne bacteria, mold, and viruses as air moves through your HVAC system. We provide UV air cleaner installation for homeowners who want cleaner, healthier indoor air, especially helpful for allergy and asthma sufferers. If your unit isn’t turning on or needs a new bulb, we also handle UV air cleaner repairs to keep the system working properly.

Mold and mildew love to grow inside dark, damp HVAC systems—but UV lights help stop them at the source. Our UV light installation service adds powerful UV protection inside your air handler or ductwork, keeping coils cleaner and airflow healthier. If the light goes out or isn’t working as expected, we offer quick, professional UV light repair so you don’t lose that important protection.