HVAC Services in Hamilton, OH
Your Heating, AC, and Indoor Air Quality Company in Hamilton
Whether you’re coming back from a day at Pyramid Hill or an evening at the Fitton Center, when you get home, you deserve to feel the safety and comfort that come with a well-maintained heating and cooling system.
Hill-Air Heating & Air Conditioning provides comprehensive HVAC services in Hamilton, OH, and the surrounding areas, providing customers with top-of-the-line solutions for heating, cooling, and indoor air quality.
We take pride in delivering dependable service because we believe you and your loved ones deserve the best. From heating installation to AC repair and everything in between, we’re here to keep your home safe and comfortable across all four seasons. Contact Hill-Air Heating & Air Conditioning today to schedule HVAC services in Hamilton.

Hill-Air: Hamilton, OH’s Local HVAC Contractor
Hamilton is home to scorching-hot summers, freezing-cold winters, and lots of different weather in between. Your heating and air conditioning systems work hard to make sure your home is always as comfortable as possible, but sometimes it needs a bit of help. That’s where the experienced technicians at Hill-Air come in.
Whether that help is in the form of a system repair, installation, replacement, or maintenance, you can count on our team to deliver prompt, professional service every time. We take the time to understand your HVAC needs, recommend the best solutions, and ensure the work is done right the first time. Here’s why the Hamilton, OH, area trusts us with their HVAC system needs:
A Carrier Factory Authorized Dealer
As a Carrier Factory Authorized Dealer, Hill-Air offers some of the most advanced and energy-efficient heating and cooling systems available. Our customers benefit from industry-leading technology backed by a trusted brand name.
Proud to be a Family-Owned, Local Business
As a family-owned business, we understand the importance of comfort, trust, and reliability in your home. We treat every customer like family and bring a personal touch to every service call.
Our Technicians are NATE-Certified
Our team includes NATE-certified technicians who are highly trained and knowledgeable in all areas of HVAC service. With expert skills and proven experience, you can feel confident knowing your system is in capable hands.
We Offer Emergency Service
When your system breaks down at the worst possible time, Hill-Air is here to help. Our emergency services ensure that you’re never left without heating or cooling when you need it most.
Financing is Available
We believe comfort should be affordable for every homeowner. With convenient financing options, you can upgrade your system or schedule necessary repairs without stressing about upfront costs.
Hundreds of 5-Star Reviews
Our reputation is built on customer satisfaction, and the hundreds of 5-star reviews we’ve earned prove our commitment to quality service. We’re proud that so many families in Hamilton trust us with their comfort.
Services All Across Hamilton
From the historic streets of Dayton Lane and German Village to the family-friendly homes of Lindenwald and Highland Park, our team is always nearby. We also serve neighborhoods like Millikin, Taft Place, and Jefferson—bringing reliable HVAC services right to your door.
Maintenance Plans Are Available
Regular maintenance is the key to keeping your system running efficiently year-round. With our Preventive Service Plans, you’ll enjoy peace of mind, improved comfort, and fewer unexpected breakdowns.
Reliable Service to Keep Your HVAC Systems Working at Their Best
Heating equipment broken down on an ice-cold winter day? Air conditioning system suddenly short-cycling? Heating and AC problems can be stressful, but with Hill-Air on your side, you can rest assured that your home will stay comfortable no matter the season. Our team responds quickly, diagnoses issues accurately, and delivers dependable solutions you can count on.
Here’s how we can help:

Air Conditioners



The Hamilton summers can push triple digits, and with the humidity the Midwest is known for, the heat can feel even more intense. That’s why having a reliable, high-efficiency air conditioner is essential for keeping your home cool and comfortable. Hill-Air’s range of air conditioning services addresses the root cause of the problem to keep your home cool and comfy.
Air Conditioning Installation
Getting a new air conditioner installed can feel stressful…but it doesn’t have to! At Hill-Air, we make the process simple and stress-free. Our highly-trained technicians will help you select the right unit for your home, ensuring it’s properly sized for maximum comfort and efficiency.
Air Conditioning Maintenance
Regular AC maintenance is the best way to prevent breakdowns and keep your system running smoothly. During a routine maintenance appointment, our technicians perform thorough inspections, clean vital components, and address small air conditioning issues before they turn into costly repairs.
Air Conditioning Repair
If your AC unit stops working or struggles to keep up with the heat, Hill-Air is here to help. We provide fast, dependable AC repair services that restore your comfort quickly. From strange noises to poor airflow, our experts diagnose problems accurately and deliver lasting solutions.
Air Conditioning Replacement
When repairs are no longer enough, Hill-Air offers professional AC replacement services to upgrade your system. We’ll recommend modern, high-efficiency options that match your home’s needs and budget. A replacement not only improves comfort but can also save you money on monthly energy bills.
Air Handlers



After your HVAC system has produced warm or cool air, it’s your air handler’s job to distribute it across your home. A reliable air handler ensures consistent airflow, balanced comfort, and improved energy efficiency. When your air handler isn’t working properly, you might notice uneven temperatures, poor indoor air quality, or higher energy bills.
Air Handler Installation
A properly installed air handler is key to a well-functioning HVAC system. Our technicians will assess your home’s needs and recommend the right equipment to match your system for maximum efficiency. With Hill-Air’s professional installation, you’ll enjoy even airflow and long-lasting performance.
Air Handler Maintenance
Routine maintenance keeps your air handler running smoothly and helps prevent breakdowns. Our team will inspect, clean, and fine-tune your unit to ensure it’s operating at peak efficiency. With regular care, you’ll get better airflow, lower energy costs, and fewer unexpected problems.
Air Handler Repair
If your air handler is making unusual noises, blowing weak air, or not working at all, Hill-Air can help. We provide fast, reliable repair services to restore proper airflow and comfort to your home. Our technicians diagnose issues quickly and deliver solutions that last.
Boilers



While they may not be as popular as furnaces, boilers are still a great option to heat your home. They produce hot water and then distribute it across the home in the form of steam or radiant heat through pipes and radiators. This creates an even, comfortable warmth that many homeowners prefer, especially during Hamilton’s cold winters.
Boiler Installation
Installing a boiler is about more than just picking a unit. It’s about making sure it’s sized properly for your home and even installing the necessary piping, radiators, or baseboard systems to distribute the heat effectively. At Hill-Air, our technicians take the time to evaluate your home’s layout, heating needs, and budget to recommend the best system for you.
Boiler Maintenance
Like any other type of HVAC system, your boiler should receive routine maintenance to keep it working at its best for as long as possible. During a maintenance visit, our technicians will thoroughly inspect, clean, and tune your system to ensure it’s operating safely and efficiently. Regular care not only helps prevent costly breakdowns but also extends the lifespan of your boiler while keeping your energy bills in check.
Boiler Repair
When your boiler isn’t working as it should, Hill-Air’s expert technicians are ready to help. From leaks and unusual noises to uneven heating and complete system failures, we quickly diagnose the issue and provide reliable repairs.
Boiler Replacement
Boilers usually last for around 15-20 years before needing to be replaced. If yours is approaching that range or is dealing with other issues like frequent breakdowns, rising energy bills, or uneven heating, it may be time to consider a new unit. Hill-Air offers expert boiler replacement services with high-efficiency models designed to deliver reliable warmth and lower operating costs.
Ductless Mini Splits



For Hamilton homes without ductwork or for those looking to heat and cool specific rooms where ductwork can’t reach, ductless mini split systems are a flexible and energy-efficient solution. These systems provide both heating and cooling, making them the perfect choice for keeping your home comfortable year-round.
Ductless Mini Split Installation
Our team provides professional ductless mini split installation tailored to your home’s needs. We’ll help you choose the right system size and configuration to deliver efficient comfort in the spaces you use most. With expert installation, you’ll enjoy improved temperature control without the hassle of installing ductwork.
Ductless Mini Split Maintenance
Like any HVAC system, ductless mini splits perform best with regular maintenance. Our technicians will clean the filters, inspect key components, and check for any issues that may reduce efficiency. With routine care, your system will last longer, operate more efficiently, and provide reliable comfort all year.
Ductless Mini Split Repair
If your mini split is struggling to heat or cool properly, making strange noises, or showing error codes, Hill-Air can help. We provide fast, accurate repair services to get your system back to peak performance. Our technicians have the experience and tools to address problems quickly and effectively.
Ductless Mini Split Replacement
When your ductless mini split is no longer keeping up with your comfort needs, it may be time for a replacement. We’ll recommend modern, high-efficiency systems that deliver better performance and energy savings. With Hill-Air handling the replacement, you’ll enjoy dependable comfort and peace of mind for years to come.
Furnaces



As the most popular type of heating system, furnaces are able to efficiently heat your home in no time. At Hill-Air, our team offers comprehensive furnace services to make sure your home is always warm, comfortable, and safe.
Furnace Installation
Choosing the right furnace for your home is key to long-term comfort and efficiency. Our technicians will carefully size and install your new furnace to ensure it delivers reliable warmth while keeping energy costs under control. With a professional furnace installation from Hill-Air, you’ll have peace of mind knowing your system is set up for success.
Furnace Maintenance
Furnaces are designed to keep your home warm while using as little energy to do so as possible. Regular maintenance ensures your system continues to run efficiently, safely, and reliably year after year. During a tune-up, Hill-Air’s technicians will clean components, check for wear and tear, test safety controls, and make adjustments that help prevent breakdowns.
Furnace Repair
When your furnace isn’t heating properly, Hill-Air is here with fast and dependable furnace repair services. Whether you’re dealing with strange noises, uneven heating, or a complete system failure, our technicians will diagnose the issue and provide lasting solutions.
Furnace Replacement
No heating system will last forever. When it’s time for a furnace upgrade, we’ll help make it as easy and seamless as possible. We don’t want you to have to go a single moment without the warmth and comfort your family depends on. Our team will guide you through selecting a high-efficiency model that fits your home and budget, then handle the installation with precision and care.
Heat Pumps



Traditional HVAC systems, like furnaces and central air conditioners, use energy to produce heat or cool air. Heat pumps do things a bit differently by simply moving warm air into or out of the home. This makes them an incredibly efficient option for year-round comfort, providing both heating and cooling in a single system.
Heat Pump Installation
Thinking about installing a heat pump to take advantage of the many benefits they provide? Give Hill-Air a call! Our team will help you find the right system for your home and complete the installation with care, ensuring you get a new HVAC system you can count on for years to come.
Heat Pump Maintenance
Routine heat pump maintenance is the best way to keep your heat pump operating efficiently year-round. During a maintenance visit, our technicians will inspect the system, clean critical components, check refrigerant levels, and make adjustments to maximize performance.
Heat Pump Repair
If your heat pump is struggling to keep your home comfortable, making unusual noises, or cycling on and off too frequently, Hill-Air can help. Our experienced technicians quickly diagnose the issue and provide the reliable and fast heat pump repairs you need to restore comfort and efficiency.
Heat Pump Replacement
Even with proper care, heat pumps eventually wear out and lose efficiency. When it’s time for a replacement, Hill-Air offers professional installation of high-efficiency models designed to provide reliable heating and cooling while lowering energy bills.
Indoor Air Quality Services to Help Your Family Breathe Easy
When it comes to indoor comfort, the quality of your air can take a backseat to its temperature. Indoor air can be up to five times more polluted than outdoor air, and poor air quality can contribute to allergies, asthma, and other respiratory problems. That’s why investing in indoor air quality solutions is just as important as keeping your home warm in the winter and cool in the summer.
Here’s how we can help:

Air Purifier Installation and Repair



Whole-home air purifiers trap dust, pollen, pet dander, and even harmful microorganisms before they circulate through your home. Hill-Air provides both professional air purifier installation and repair in Hamilton to keep your system running smoothly. With our help, you’ll enjoy cleaner air, fewer allergy triggers, and a healthier environment year-round.
Carbon Monoxide Detector Installation



Gas appliances and heating systems can produce carbon monoxide if fuel isn’t burned completely. Because this gas is odorless, colorless, and dangerous, every home needs a working detector. We offer carbon monoxide detector installation to ensure devices are placed correctly and tested for reliable performance.
Dehumidifier Installation and Repair



Hamilton summers bring heavy humidity that can leave your home feeling damp and uncomfortable. Too much moisture can also cause mold growth and damage woodwork. Hill-Air provides expert dehumidifier installation and repair to keep humidity balanced, protecting both your home and your comfort.
Humidifier Installation and Repair



Dry winter air can cause irritated skin, sinus issues, and damage to wood floors and furniture. A whole-home humidifier restores healthy moisture levels. Our technicians specialize in humidifier installation and repair to ensure your system adds comfort and protection when you need it most.
Media Air Cleaner Installation and Repair



Media air cleaners trap smaller particles that standard filters often miss, improving overall indoor air quality. Hill-Air handles media air cleaner installation and repair so your system continues removing dust, pollen, and allergens efficiently.
Thermostat Installation and Repair



Your thermostat controls the comfort of your entire home. Outdated or broken thermostats can cause inconsistent temperatures and wasted energy. Hill-Air provides thermostat installation and repair, including modern programmable and smart models that give you more control and efficiency.
UV Air Cleaner Installation and Repair



UV air cleaners use ultraviolet light to neutralize airborne bacteria, viruses, and mold. Our team offers UV air cleaner installation and repair services that add another level of protection for your indoor air.
UV Light Installation and Repair



Installed within your HVAC system, UV lights sterilize air as it passes through your ducts, reducing microorganisms before they reach your living spaces. Hill-Air provides UV light installation and repair for reliable, long-term improvements to your indoor air quality.
Give Hill-Air a Call For Hamilton, OH HVAC Services
At Hill-Air Heating & Air Conditioning, we’re proud to deliver exceptional service on each and every call. We understand that heating and cooling systems play an important role in the comfort and safety of your home, and we take our responsibility seriously.
Whether you’re looking for an HVAC system repair, replacement, installation, or maintenance appointment, our team is here to help you in any way we can. Give us a call or contact us online today to schedule expert HVAC services in Hamilton, OH.


