HVAC Service in Southport

HVAC Service in Southport

Is your heat or AC acting up? Johnson offers services for everything from central AC and furnaces to heat pumps and boilers. Call (317) 881-7738 to book an appointment with us. We offer strong guarantees for your peace of mind.

Johnson technician measuring an indoor HVAC unit during a service call in Southport

Helping Southport with Heating and Cooling for 58 Years

Some HVAC problems show up with a loud bang from the basement. Others sneak up on you, one high energy bill at a time. Whether your HVAC problem is sudden or stealthy, it’s going to be a major inconvenience. You’ll want it dealt with quickly so you can go back to enjoying the calm pace of life in Southport. You should be enjoying a donut from Long’s Bakery while you browse the Southport Antique Mall, not fretting over a broken-down HVAC system.

Whatever your HVAC issue is, Johnson Heating, Cooling, and Plumbing can help. We’ve been resolving HVAC problems for Southport residents since 1968. We are a local, family-run HVAC company, and we work on everything from central AC and gas furnaces to heat pumps and geothermal systems. Call (317) 881-7738 today to schedule service.

What's Going Wrong with Your Heating or Cooling?

It’s important to keep an eye on the condition of your HVAC systems. Being able to spot a problem early can often save you the inconvenience and expense of a system breakdown. Below are some of the most common signs of malfunctions, along with their causes.

Signs something has gone wrong with your HVAC system include:

Big John, the Johnson mascot, kneeling beside an outdoor AC unit with a wrench and toolbox
  • The AC Runs, but the House Isn’t Cool: This can be caused by an iced-over evaporator coil or a refrigerant leak. An outdoor unit that has become clogged with debris can cause this too. With this type of malfunction, your AC might still be operating, but it’s not having any effect.
  • There's No Heat at All: First, make sure the thermostat is set to heat and has fresh batteries. If all is right with the thermostat, the cause may be a cracked ignitor (the part that lights the gas) or a safety switch that shut the furnace down. These are both serious issues that require expert intervention.
  • Air from the Vents Feels Weak: A clogged air filter is the most common cause, and it is cheap to fix. If a fresh filter doesn't help, the trouble is likely a worn blower motor or a crushed or loose duct.
  • The System Is Making New Noises: A steady hum is normal. Squealing is not and often means a worn belt or motor bearing. A bang or boom when the furnace starts can mean delayed ignition, where gas builds up before it lights. That one is dangerous and needs a technician right away.
  • Energy Bills Are Climbing: HVAC parts wear down and lose efficiency over time. If your bill goes up while your habits stay the same, your HVAC system may be working harder than it should.
  • One Room Is Always the Wrong Temperature: Unevenly heated or cooled rooms usually come from leaky ductwork or blocked vents. Sometimes the system was never properly balanced to fit the house.

Some of these you can check yourself. Swap the filter and confirm the thermostat settings. It's also worth checking for a tripped breaker. If none of that helps, turn the system off and call us. If you ever smell gas, get everyone out of the house right away. Don't flip light switches or use a phone inside. Once you're outside, call 911 and your gas company.

Air Conditioning and Ductless Service in Southport

In July, daytime highs in Southport average around 84°F, and evenings often stay warm well past sunset. This makes frequent AC use essential for comfort. All that use is especially hard on any air conditioner components that are already worn down.

AC Repair

Many summer AC malfunctions stem from a few electrical parts that wear out with heat and age. A capacitor stores the jolt that starts the compressor and fan motor. When it is damaged, the outdoor unit hums but won't kick on. A burned contactor or a failing condenser fan motor can shut the system down too.

Fix Your AC

AC Maintenance

A spring tune-up gets your AC ready before the work it has to put in over the summer. We clean the coils and check the electrical connections. We also measure the refrigerant charge. Maintenance can help prevent major malfunctions. Replacing a worn capacitor during an April tune-up is much less hassle than dealing with an unexpected breakdown in the middle of a July heat wave.

Get AC Maintenance

AC Replacement

Most central air conditioners last 10 to 15 years. If yours is past the 10-year mark and struggling, or it needs a major repair, it's time to price a replacement. When the job's done, we haul away the old one and clean up.

Replace Your AC

Ductless Mini-Splits

Ductless systems are designed to serve spaces without central air. This makes them a good fit for additions, sunrooms, finished attics, and older homes that were never built for ductwork. Johnson installs, repairs, and maintains mini-splits for Southport residents.

Go Ductless

Furnace and Boiler Service in Southport

From December through February, nighttime temperatures in Southport usually fall below freezing. If your furnace is already giving you trouble in the fall, call us before the truly cold weather hits.

Furnace Repair

If your furnace lights and then shuts off a few seconds later, the flame sensor may need cleaning. Over time, soot and residue can build up until it can't detect the flame. The furnace then shuts off the gas as a safety step. A failing inducer or blower motor can also keep your furnace from running. Johnson repairs all manner of furnace issues throughout Southport.

Explore Furnace Repair

Furnace Maintenance

A fall tune-up gets your furnace ready before the first cold snap. We inspect the heat exchanger, clean the burners, check airflow, and test the safety controls. Our furnace tune-ups include a carbon monoxide test. Maintenance can be a great way to prevent breakdowns.

Get Furnace Maintenance

Furnace Replacement

Gas furnaces often last 15 to 20 years. When yours is that age and the repair calls are coming more often, it may be time for a replacement. A new furnace can cut your gas use and warm the house more evenly. Johnson performs careful furnace replacements tailored to each customer’s unique heating needs.

Replace a Furnace

Boiler Service

Some of Southport's older homes are boiler-heated. Boilers send hot water through radiators or radiant floor tubing. On a boiler visit, we inspect the pressure relief valve and circulator pump. We also check for leaks and make sure the system holds steady pressure. If your boiler stops working, we'll find the cause and make the repair.

Get Boiler Care

Heat Pump Service in Southport

Johnson replaces, repairs, and maintains heat pumps in Southport. A heat pump runs in both summer and winter, so it sees more wear than a standard furnace or air conditioner. This makes regular maintenance especially important. Scheduling service before each season helps catch worn parts, airflow problems, and performance issues early.

Get Heat Pump Care
Big John, the Johnson mascot, giving an OK sign for heat pump service in Southport
Big John, the Johnson mascot, giving a thumbs-up beside an indoor air unit for air quality service in Southport

Indoor Air Quality in Southport

The air inside your home can be drier or dustier than you realize. We start with an air quality test that checks your home for pollutants and humidity problems. Depending on the results, we can help with:

  • Humidifiers: Humidifiers add moisture to your home’s air. This is especially valuable in winter when the air is often dry enough to cause static shocks and dry skin.
  • Dehumidifiers: Dehumidifiers pull moisture out of summer air that feels sticky and humid even with the AC running.
  • High-Efficiency Air Filters: These catch finer particles, like pollen and pet dander, than a basic filter can.
  • Duct Cleaning: Duct cleaning in Southport clears out dust and debris that have built up over the years or after a renovation.
Get Clean Air

Emergency HVAC Service in Southport

Johnson offers emergency HVAC service, including after-hours calls. If your system quits after hours, call (317) 881-7738. We'll get a technician to your Southport home as soon as we can. Comfort Club members pay a discounted after-hours fee.

Why Southport Homeowners Choose Johnson

Johnson has been serving Southport and a large swathe of Marion County for 58 years. But our extensive experience isn’t the only reason local customers consistently choose our HVAC services.

Here's what you can count on with Johnson:

  • NATE-Certified Technicians: NATE stands for North American Technician Excellence. Technicians earn this certification by passing tests on real-world heating and cooling work. The Johnson technician working on your furnace or AC has proven their skills.
  • A Vetted, Fully Protected Team: Every technician is background-checked. Johnson is fully licensed, and our team is fully bonded and insured to protect you and your property.
  • Honest Advice: If a repair makes more sense than a replacement, we'll tell you. You'll see the options and the prices, and the choice stays yours.
  • Dependable Maintenance: The Johnson Comfort Club is our maintenance plan. Members get two maintenance visits annually: a furnace tune-up with a carbon monoxide test and an AC tune-up with a coil inspection. Membership also includes priority service and a discount on repairs.

Heating and Cooling for Southport Homes

Southport is a small city in southern Marion County with its own mayor and city council. The name comes from pioneers heading south from Indianapolis, who used the town as their first stop, or port, outside the capital. Some of Southport's historic homes remain. Those older houses may need specialized care, like keeping a boiler running or adding ductless comfort without opening up plaster walls.

About three in four Southport homes heat with natural gas, with the rest using electricity. Many of these houses have been through several furnaces and air conditioners but often still have their original ductwork. And old ducts tend to leak. ENERGY STAR estimates that a typical house loses 20 to 30% of the air moving through its ducts to leaks and loose connections. That lost air is a common reason for dramatically different temperatures between rooms.

From Southport Road to Stop 11, our team is close by whenever you need HVAC service in Southport. Whether you want a boiler replaced or a section of duct patched, we’ll be there to help.

Johnson service truck ready to head out to homes in Southport

Southport's Local Heating and Cooling Team

Since 1968, Southport families have counted on Johnson to keep their homes comfortable through every Indiana season.

And customers continue to be happy with our work. With over 1,500 five-star Google reviews, we are known for our friendly service, knowledgeable technicians, and quick work. Many customers even mention their technician by name. Whenever you need heating and cooling service in Southport, call (317) 881-7738. We’ve been helping Johnson County residents stay comfortable for 58 years, and we don’t plan on stopping.

Frequently Asked Questions