Furnace repair in Troy, Ohio

If your furnace is giving you trouble in the Troy area, our expert technicians are here to help. We service all brands of residential and light commercial heating systems, including gas furnaces, electric furnaces, heat pumps, ductless mini-splits, and other home comfort equipment.

Roberts Brothers Comfort has served homeowners and businesses throughout the Miami Valley since 1991. Our N.A.T.E. Certified technicians take the time to inspect your system, identify the source of the problem, and recommend the right repair for your home.

Our goal is simple: get your furnace working working again and help you stay comfortable in your home

Schedule a diagnostic furnace repair call in Troy

A proper furnace repair starts with a proper diagnosis. When you call us for air conditioning repair, our technician will inspect your system, check the equipment, and look for the source of the problem.

The problem may involve a thermostat, igniter, blower, control board, or any of various other components.  Once we identify the cause, we’ll explain what we found and talk through your repair options.

We also do furnace repair in Casstown, Covington, Fletcher, Piqua, Rosewood, Sidney, Saint Paris, Tipp City, Urbana and West Milton.

Common furnace problems we repair

Furnace will not turn on

If your furnace will not turn on, the problem may be something simple or it may point to a larger system failure. Common causes include an incorrect thermostat setting, dead thermostat batteries, a tripped circuit breaker, a blown fuse, a bad control board, ignition failure, or a safety switch that has shut the system down. A dirty air filter or blocked vent can also cause the furnace to overheat and stop running as a safety precaution. If the thermostat is set correctly and the breaker has not solved the problem, an HVAC technician can inspect the system, test the electrical components, and find out why the furnace is not starting.

Furnace blows cold air

If your furnace is running but blowing cold air, the system may not be producing heat or the heat may be shutting off before the blower stops. This can happen because of a dirty flame sensor, pilot light problem, gas supply issue, bad ignitor, clogged air filter, or overheating shutdown. In some cases, the thermostat may be set to “fan” instead of “auto,” which can make the blower run even when the furnace is not heating. If the furnace continues to blow cold air after checking the thermostat and replacing a dirty filter, an HVAC technician can inspect the ignition system, safety controls, burner operation, and airflow to find the problem.

Weak airflow from vents

If the airflow from your vents feels weak, your furnace may be running but not moving enough warm air through the home. Poor airflow is often caused by a dirty air filter, blower motor problem, blocked return vents, closed or blocked supply vents, ductwork issues, or a dirty blower wheel. Weak airflow can make some rooms feel colder than others and may cause the furnace to work harder than it should. If replacing the filter and checking the vents does not improve airflow, an HVAC technician can inspect the blower assembly, ductwork, return air, and other parts of the system to find the cause.

Furnace makes strange noises

If your furnace is making banging, rattling, squealing, grinding, or humming sounds, there may be a mechanical, electrical, or airflow problem inside the system. Rattling can come from loose panels or parts, squealing may point to a blower motor or belt problem, grinding can mean worn bearings, and banging may be related to ignition trouble or ductwork movement. Humming sounds can also be caused by electrical components or a struggling motor. Strange furnace noises should not be ignored, especially if they are new or getting worse. An HVAC technician can inspect the furnace, find the source of the noise, and repair the problem before it causes more damage.

Furnace turns on and off too often

If your furnace turns on and off too often, the system may be short cycling. This means the furnace starts, runs for a short time, shuts off, and then starts again before it has properly heated the home. Short cycling can be caused by a clogged air filter, restricted airflow, overheating, thermostat problems, blocked vents, an improper furnace size, or a faulty limit switch. This can make your home less comfortable, raise energy use, and put extra wear on the furnace. If changing the air filter and checking the vents does not solve the problem, an HVAC technician can inspect the system, test the safety controls, check airflow, and find out why the furnace is shutting down too soon.

Furnace doesn't heat evenly

If your furnace does not heat your home evenly, some rooms may feel warm while others stay cold or uncomfortable. Uneven heating can be caused by ductwork problems, poor airflow, closed or blocked vents, a dirty air filter, thermostat placement, air leaks, or a furnace that is struggling to keep up with the home’s heating needs. In some cases, the problem may also involve an aging furnace, unbalanced ductwork, or rooms that are harder to heat because of poor insulation or window drafts. If checking the filter and vents does not improve the problem, an HVAC technician can inspect the system, check airflow, look at the ductwork, and determine why heat is not being distributed evenly.

Are you experiencing any of these problems?

HVAC equipment financing is available

We understand the stress that arises when an HVAC system stops working. It’s an unexpected expense most don’t plan for. Roberts Brothers Comfort has monthly payment programs to make finding the right system less stressful. Let us help make the cost easier to handle

Satisfaction Guaranteed

Our team of trained technicians are skilled in the service, repair and maintenance of a wide variety of HVAC equipment. We offer many money-saving solutions, using only the highest quality parts and equipment, and we fully guarantee your satisfaction with our workmanship and service.

What our customers say about our AC services

Adrian Jaqua

Piqua, OH

I couldn’t be happier with my experience with Robert’s Brothers Comfort. From the moment I called, their customer service was friendly, professional, and efficient. They scheduled an appointment quickly and showed up right on time. The technician was knowledgeable, respectful of my home, and took the time to explain exactly what was going on with my system. He diagnosed the issue quickly and had it fixed the same day. No upselling, no pressure—just honest, quality work. My AC is fixed, and I feel confident knowing the job was done right. It’s clear that this company takes pride in what they do. Highly recommend to anyone in need of HVAC service!

Linda Chambers

Piqua, OH

Very pleased with our experience! Brad was very good explaining what we needed and how it worked! Always arrived on time and completed the work quickly! Would highly recommend this company!

Emily Cheek

Piqua, OH

Our AC quit working over the holiday weekend. I called first thing this morning and they had a tech to our house within an hour. Thank you, Zach for fixing our AC so quickly! This is our second time using Robert’s Brothers and we can’t imagine using anyone else. Thanks again!

Jim M

Troy, OH

Great company! Brad was very easy to work with. Everyone was very polite. Proffesional workmanship. Cleaned up when they were done. Will definitely use them again. Thank you for getting our air conditioning back up and running.

Ryan Hochwalt

Troy, OH

Fast reliable service, great communication and reasonable price. Tech was very nice and knowledgeable, will use them again. Fixed my issue and checked to make sure everything else was in good shape.
Dianna Ford

Piqua, OH

Sean did a great job replacing our water heater and servicing our air conditioning unit. I had initially called for the AC service and Sean made me aware that my water heater needed to be replaced ASAP. So, we avoided a flood and had it installed the very next day which was a Saturday. I’m a first time customer and very happy with the customer service provided!

Kathy Zimmerman

Troy, OH

We appreciate Roberts Brothers so much. Any time we have needed them, their response has been immediate. They keep us informed if parts have to be ordered and are here as soon as the parts arrive. Their quality of work is excellent. We feel confident that we can always depend on them and highly recommend them.
Brian Murphy

Troy, OH

We had an A/C unit that was failing on the hottest day of the year and Brad was able to find a replacement and Roberts Brothers techs got it installed the next morning.

After hours & weekend service available

Use this form to contact us after hours

Preventative HVAC Maintenance Plans Available

For all furnace and AC systems