Ignition System Repair
We troubleshoot hot surface igniters, intermittent pilots and spark ignition systems, replacing cracked igniters or failing gas valves so your furnace lights reliably every time the thermostat calls for heat.
Heating
Roswell Furnace Repair
Furnace repair in Roswell, GA. We diagnose ignition, flame sensor, blower and control board faults, check for carbon monoxide and restore safe heat.
Roswell, Georgia
Furnace Repair in Roswell, GA
When your furnace stops heating on a cold January night, you need a technician who finds the real problem instead of guessing. Our team provides furnace repair in Roswell for gas and electric systems of every age, from builder-grade units in newer subdivisions to aging furnaces in homes near Historic Roswell. We start by testing the ignition sequence, checking the flame sensor, inducer motor, pressure switch, limit switch and blower, and reading any error codes on the control board. Once we know the cause, we explain it in plain language, give you a clear price before work begins, and carry common parts on the truck so many repairs are finished in a single visit. Every gas furnace repair includes a carbon monoxide check and a look at the heat exchanger, because restoring heat should never come at the cost of safety.
Get a free estimate
Furnace Repair Services in Roswell
Flame Sensor Service
A dirty or corroded flame sensor makes burners light and then shut off within seconds. We clean or replace the sensor and confirm a steady flame signal on the control board.
Blower Motor Repair
Weak airflow, a humming motor or a blower that never stops often point to a failed capacitor, worn bearings or a bad motor. We test each part and replace only what failed.
Control Board Diagnostics
Modern furnaces store fault codes that reveal what went wrong. We read the flash codes, test relays and wiring, and replace a faulty board only after ruling out simpler causes first.
Inducer and Pressure Switch
If the inducer motor whines or the pressure switch never closes, the furnace locks out for safety. We check venting, condensate drains and switch hoses before replacing any component.
Heat Exchanger and CO Check
Cracks in a heat exchanger can leak carbon monoxide into your living space. We inspect it visually, measure CO at the supply registers, and tell you plainly if it is unsafe to run.
Why Choose our Furnace Repair Experts in Roswell
Furnace problems rarely announce themselves at a convenient time, and a rushed diagnosis can mean paying for parts you never needed. Our technicians follow a step-by-step testing process, starting with the thermostat and working through ignition, airflow and safety controls until the true fault is confirmed.
You get an upfront price before any repair begins, and we never push a replacement when a reasonable fix will keep your furnace running safely. If a unit has a cracked heat exchanger or another hazard, we will say so directly and help you weigh your options. Homeowners across Roswell, Alpharetta and Sandy Springs count on us for honest answers and clean, careful work. We also keep detailed service notes, so if your furnace ever needs attention again, the next technician already knows its history, past repairs and any parts that are wearing.
Request a free estimate
Furnace Repair Specialists Roswell: How We Work
-
Step 01
Diagnose the Fault
We check the thermostat, filter, power and gas supply, then run the furnace through its startup sequence while testing each component to pinpoint exactly where and why it is failing.
-
Step 02
Explain and Quote
You hear what broke, why it happened and what it costs to fix before we touch anything. If replacement makes more sense, we explain the reasons without any pressure at all.
-
Step 03
Repair and Verify
After the repair we run a full heating cycle, measure temperature rise and check for carbon monoxide, confirming the furnace starts, heats and shuts down correctly before we leave.
FAQ
Furnace Repair FAQs
Answers to the questions Roswell customers ask us most. Still unsure? Call (770) 661-0066.
Why does my furnace turn on and then shut off after a few seconds?
The most common cause is a dirty flame sensor that cannot confirm the burners lit, so the control board shuts off the gas for safety. A clogged filter, a blocked flue or a failing pressure switch can cause similar short cycling. A technician can test each one and usually fix the problem in a single visit.
How much does furnace repair cost?
Cost depends on which part failed, how accessible the furnace is and whether the part is on the truck or must be ordered. A flame sensor cleaning is far simpler than replacing a blower motor or control board. We diagnose the problem first and give you an upfront quote before any repair work begins, so there are no surprises.
Is it safe to keep running a furnace that smells like burning?
A light dusty smell on the first cold day is normal and usually fades within an hour as dust burns off the heat exchanger. A strong electrical or melting plastic smell is not normal. Turn the furnace off at the thermostat and switch, then call for service, since overheated wiring or a failing motor can become a fire risk.
Should I repair or replace an older furnace in Roswell?
Repair usually makes sense when the furnace is mechanically sound and the fix is modest compared with its remaining life. Replacement becomes the better choice when the heat exchanger is cracked, repairs are frequent or the unit is near the end of its expected lifespan. We lay out both options honestly so you can compare them side by side.
What can I check myself before calling for furnace repair?
Start with the simple items: make sure the thermostat is set to heat, replace a dirty filter, confirm the furnace power switch and breaker are on, and check that the gas valve is open. Avoid removing panels or resetting safety switches repeatedly, because a tripped safety control is often warning you about a real problem that needs a technician.
Free, no-obligation quote
Get a Free Quote for Furnace Repair in Roswell
Tell us what's going on and we'll get back to you with clear options and an upfront price.