INDIANAPOLIS GUIDE

How a heating and cooling visit goes

The basement utility closet is usually the first room that matters. In a lot of older Indianapolis houses the furnace or air handler sits on a pad next to the water heater, with a return duct overhead and a filter slot that is easy to miss in the dark. Newer houses toward the edge of the city, and some nearby, hide the same equipment in a hall closet or an attic. Before anyone opens a panel, write down what the thermostat says, what you hear, and whether you smell anything. Those three notes shape the rest of the visit.

By Mike Maziarz · Sources checked October 6, 2026 · How we write these guides

Write the notes before the truck arrives

Stand at the thermostat and copy the screen exactly. Mode, setpoint, indoor temperature, and any alert word all belong on the page. If the display is blank, say whether other lights in the house are on. A dead thermostat and a dead furnace are different stories, and the difference saves a long conversation at the door.

Then walk to the equipment. On a gas furnace, note whether the blower is running, whether you hear a click and then silence, or whether nothing happens at all. On a cooling day, note whether the outdoor unit fan is turning and whether the big line is sweating or cased in ice. A phone photo of the data plate, panel still closed, is enough. You are recording identity, not opening the cabinet.

Add the clock. Write when the problem started, whether it followed a storm, a filter change, or the first cold night. The first night the blower will not start is a different call from a unit that has been short-cycling since August.

What the visit usually looks like

A careful technician starts with your notes, not with a guess. Expect questions about which rooms are cold or sticky, whether the problem is heat, cooling, or both, and whether anyone smelled gas or felt dizzy. If you smelled gas, the visit should not start inside. Leave, avoid switches, and from outside use the emergency number printed on the Citizens Energy Group bill. Many Indianapolis addresses are served by that utility, and the number on the bill is the one to use.

Inside, the sequence is usually thermostat, filter, then the air handler or furnace, then the outdoor unit if the season calls for it. In a Broad Ripple or Irvington basement, that path is down the stairs. In a newer house it may be a hall closet and then a walk around the condenser. The technician should say, in plain words, what was checked and what was found before talking about parts.

Ask what will be tested while you are still in the room. Airflow and a look at the coil or the heat exchanger are checks you can follow without diagnosing the machine. If the explanation jumps straight to a replacement, slow down and ask what failed.

Basement, closet, or attic

Older houses in Broad Ripple, Irvington, Fountain Square, Meridian-Kessler, and Butler-Tarkington often have basements, so the furnace is a walk-down appliance. Clear a path before the visit. Boxes stacked against the return, a laundry rack in front of the door, or a sump pump cord across the floor all slow the work and hide the filter.

Toward the edge of the city, and in nearby separate cities such as Carmel, Fishers, Greenwood, Noblesville, and Speedway, a closet or attic air handler is common. Those towns have their own permit counters, which matters if the visit turns into a change-out. For the visit itself, the practical point is access: an attic hatch and a light that works. Say so when you schedule.

Gas furnaces are common in this housing stock. Heat pumps and dual-fuel systems also exist, especially where a newer outdoor unit was added beside an older gas furnace. If you are not sure which you have, say that. The heat pump questions page walks through defrost and emergency heat so you can name the behavior you saw.

What should be explained before work starts

You should hear a finding, not a slogan. A finding sounds like this: the filter was packed shut, the outdoor fan was not turning, or the furnace tried to light and then locked out. A slogan sounds like a brand lecture. Write the finding in your own words before you agree to a repair.

Ask whether the repair is on the indoor unit, the outdoor unit, the thermostat, or the duct path. Those are different jobs. A thermostat that lost power is not the same visit as a blower motor that hums and stops. If the house has no heat and the furnace will not light, the furnace ignition notes cover the gas-smell stop rule and what to record before anyone arrives.

If the technician needs to shut the system off to look, ask what you should watch for after it is turned back on. A short run that warms one vent is not the same as a full cycle. Stay for that cycle if you can. The sound after the flame or the compressor starts is part of the diagnosis, and you will not remember it an hour later unless you write it down.

Paper you should keep after they leave

Keep the invoice even when the repair felt small. It should name the part, say whether the old part stayed with you, and list what was tested after the repair. Model and serial numbers from the indoor and outdoor units belong on that paper or in a photo album on your phone. The next person, in January or in July, will ask for them.

Write the filter size and the date you last changed it. A seasonal habit is easier to keep when the size is on the furnace door in pencil. The fall and spring maintenance guide lays out a heat check before cold weather and a cooling check before the humid stretch, without turning those visits into a sales script.

If a permit was mentioned, ask which office and for what scope. A repair of an existing furnace in Indianapolis is not the same paperwork as a full system change in a neighboring city. Do not guess the rule. Ask the office that covers the job address, and keep whatever number or receipt they give you with the invoice.

When the visit should stop

Stop the visit if you smell gas, if a carbon monoxide alarm sounds, or if people in the house have a headache or dizziness that eases when they step outside. Get everyone out. Do not hunt for the source, and do not let anyone keep testing burners while the house is still occupied. From outside, use the gas utility emergency number on the bill for a gas smell, and call emergency services for an alarm or those symptoms.

Also stop if someone proposes to jump out a safety switch, tape a door switch closed, or add refrigerant from a can. Those are not homeowner shortcuts and they are not a fair description of a repair. You can say no and ask for a written finding instead.

Hiring is a separate decision from the visit. Before you pick a company, use the questions to ask before hiring so you know what license talk, insurance, and a written quote should cover. The visit goes better when you already know which questions are yours to ask.