Furnace Repair in Southern Indiana
Furnace blowing cold air, short cycling, or refusing to light? We diagnose gas and electric furnaces across Clark and Floyd County, put the repair price in writing before any work starts, and fix what can be fixed. No trip charge.
Henry Brothers repairs gas and electric furnaces for homeowners across Clark and Floyd County, Indiana. We diagnose the fault first, put the repair price in writing before any work starts, and the price we quote is the price you pay. No trip charge in our service area. Call (812) 994-1008.
What Does a Furnace Repair Cost?
The cost comes down to the part that failed: a flame sensor or a hot surface ignitor is a small fix, a blower motor sits in the middle, and a cracked heat exchanger is a replacement conversation, not a repair. We don't publish a one-size number because every furnace and every failure is different. Instead you get a written quote before any work starts, and the price we quote is the price you pay.
What Is Your Furnace Doing?
Most no-heat calls trace back to a short list of parts. ENERGY STAR's furnace guide covers how a certified furnace is supposed to perform. Here is what it looks like when one doesn't.
Why Is My Furnace Blowing Cold Air?
A furnace that runs but blows cold air usually has a dirty flame sensor, a failed ignitor, or a safety switch cutting the burners while the blower keeps pushing air. The fan is doing its job. The burners aren't. It can also be as simple as the thermostat fan setting stuck on On.
The flame sensor is the most common culprit we find in Clark and Floyd County homes. It's a thin metal rod that confirms the burners actually lit; when it's coated in residue, it reports no flame and the control board shuts the gas off within seconds, so the furnace "runs" but never heats. Cleaning or replacing one is a small, quick repair. A clogged filter causes the same symptom a different way: airflow drops, the cabinet overheats, and the limit switch kills the burners to protect the heat exchanger. If the air turns cold a few minutes into every cycle, the filter is the first thing we check.
Why Does My Furnace Keep Turning On and Off?
Short cycling (the furnace firing for a few minutes, shutting down, then firing again minutes later) usually points to overheating from a clogged filter, a flame sensor dropping the flame signal partway through the cycle, or a furnace that was oversized for the house on the day it went in.
Overheating is the pattern we see most. Restricted airflow makes the temperature inside the cabinet climb until the limit switch trips, the burners cut out, the furnace cools, and the whole cycle starts over. Every one of those restarts wears the ignition parts and stresses the heat exchanger, so short cycling is worth fixing early, not living with. If the furnace was oversized from the start, it heats the thermostat's corner of the house quickly and shuts down before the far rooms catch up. A filter won't fix that, and we'll say so rather than sell you parts that won't change anything.
Why Won't My Furnace Ignite?
A furnace that clicks but never lights usually has a failed hot surface ignitor, a fouled flame sensor, or a pressure switch that won't close because the intake or exhaust pipe is blocked. Most furnaces lock themselves out after three failed tries and wait to be reset.
Before you call, run the checks in our guide to an HVAC system that won't turn on (thermostat, furnace switch, breaker, filter) because a surprising number of no-heat calls end at a switch someone bumped. If the basics check out, we test the ignition sequence step by step: does the inducer fan start, does the pressure switch close, does the ignitor glow, does gas reach the burners, does the flame sensor confirm light-off. The sequence tells us exactly which part failed, so the quote covers the actual problem instead of a parts-cannon guess.
Why Does the Blower Run and Never Shut Off?
A blower that never stops usually means the thermostat fan setting is on On instead of Auto, a fan limit switch has failed, or a relay on the control board is stuck closed. Check the thermostat first. That one is a ten-second fix that costs nothing.
If the setting is right and the fan still runs around the clock, either the furnace is holding the blower on for a reason or a component has failed in the on position. A furnace that recently overheated will run the fan to cool the heat exchanger, which loops back to airflow and the filter. A failed blower motor more often shows up the opposite way: burners light, but no air moves. Either direction, we test the motor, its capacitor, and the control board before naming the part.
What's That Burning Smell When the Furnace Kicks On?
Dust burning off the heat exchanger on the first cold morning of the season is normal and clears within the hour. A sharp electrical smell, melting plastic, or any burning odor that persists cycle after cycle is not normal. Shut the furnace off at the switch and call us.
The smells we take seriously: hot metal and electrical odors, which often point to a failing motor or wiring; a formaldehyde-like odor, one possible sign of a cracked heat exchanger; and gas odor, which means leave the house and call your gas utility before anyone else. A cracked heat exchanger matters because it can let combustion byproducts, including carbon monoxide, reach your supply air. EPA names back-drafting furnaces and leaking chimneys as indoor sources of carbon monoxide. It's the one furnace problem where we will always tell you to stop running the system. Every repair visit includes a look at the exchanger and the flue for exactly that reason, and a working CO detector near the bedrooms is worth more than any single furnace part.
How Does a Furnace Repair Visit Work?
Justin Henry heads up the traditional-HVAC side of Henry Brothers, and every furnace call runs the same way: diagnosis first, number in writing, then the work. That holds whether you book furnace repair in Charlestown, our home base, or anywhere else in the two counties.
You Tell Us the Symptom
When it started, what the furnace does, what you've already tried. That history narrows the diagnosis before we open a panel.
We Diagnose the Actual Problem
We test the ignition sequence, sensors, blower, and board. No assuming. If we find something different than expected, you hear it before we touch anything.
The Number Goes in Writing
What's wrong, what the fix costs, and whether we think it's worth fixing. The price we quote is the price you pay. You decide.
We Repair and Verify
If you say go, we do the work, then run a full heat cycle and check the heat exchanger, flue draft, and gas connections before we button anything up.
Catch It in the Fall, Not in January
A Clean and Check℠ visit is $99: burners, flame sensor, blower, and safety controls, checked before the cold sets in. The Two Seasons Membership pairs that fall furnace visit with a spring AC visit for $159 a year, plus 10% off every repair in between.
See the Two Seasons Membership →Past the point of repair, or heating a space that has no ducts at all?
Furnace Repair by Town
Towns We Serve
Clark and Floyd County and the surrounding area. No trip charge in our service area.
Common Furnace Repair Questions
How much does a furnace repair cost in Southern Indiana?
The number depends on the part that failed: a flame sensor is a small fix, a blower motor sits in the middle, a control board costs more. We diagnose first and hand you a written quote before any work starts, and the price we quote is the price you pay. The Transparent Pricebook™ explains our approach.
Do you offer 24/7 emergency furnace repair?
We don't run a 24-hour dispatch line, and we won't pretend otherwise. Call (812) 994-1008 and we'll give you a real arrival window, an actual time, not a promise that falls apart overnight. You can also schedule online and we'll confirm the earliest opening we have.
My furnace won't turn on at all. What should I check before calling?
Start with the simple stuff: the thermostat set to Heat and above room temperature, the furnace switch that looks like a light switch near the unit, the breaker, and the filter. Our guide to an HVAC system that won't turn on walks through each check in order. If it still won't start, call us.
Should I repair my furnace or replace it?
Age and repair cost drive that call. A ten-year-old furnace with a failed ignitor is a repair; a twenty-year-old unit with a cracked heat exchanger usually is not. We tell you what we found, what the fix costs, and what furnace installation would run. Then the decision is yours.
Do you repair electric furnaces or just gas?
Both types come through our door. Gas furnaces tend to fail on the ignition side (flame sensors, ignitors, gas valves) while electric furnaces lose heating elements and sequencers. The blower motor is shared by both and is one of the most common failures we see. Same process either way: diagnose, quote in writing, repair.
Is it safe to run my furnace if it smells like something is burning?
A dusty smell on the season's first start usually burns off within an hour and is nothing to act on. A sharp electrical or plastic smell is different. Shut the furnace off at the switch and call. On every repair we inspect the heat exchanger, because a cracked one can push combustion gases into your air.
How do I keep my furnace from breaking down again?
Annual maintenance catches most of these failures early: a Clean and Check℠ visit is $99 and covers the burners, flame sensor, blower, and safety controls. The Two Seasons Membership pairs that fall furnace visit with a spring AC visit for $159 a year and takes 10% off any repair in between.
Furnace Acting Up?
Tell us what it's doing. We'll come out, diagnose it, and put the number in writing before anything gets fixed.