Home » Heating » Furnace Repair

Atlanta Heating & Furnace Repair

Do We Service Your Area?

Complete Residential Furnace Diagnostics & Repair

For over five decades, ALH has been a leader in expert furnace repair across Metro Atlanta. Offering professional service throughout Cobb, Gwinnett, and DeKalb, and Cherokee counties, we deliver reliable diagnostics and repairs for your heating and cooling needs.

Furnace Diagnostics

The ALH team thoroughly identifies furnace issues, conducting detailed inspections of key components. We perform extensive tests on airflow, temperature output, and cycling behavior, ensuring accurate diagnostics and appropriate recommendations.

Repair & Replacement

Our certified technicians handle necessary repairs or replacements after identifying malfunctioning components. ALH provides common repairs for thermostats, ignition systems, blower motors, heat exchangers, and filters in Metro Atlanta.

Emergency Services

An unexpected furnace breakdown requires immediate attention, especially those involving a gas leak. We offer 24/7 emergency services in the Metro Atlanta area, with expert technicians ready to respond promptly to ensure your home remains warm and safe.

Our Residential Furnace Repair Services

Furnace Diagnostics & Repair Services

Successful furnace repair begins with diagnostics. Our NATE-certified technicians bring experience and knowledge to successfully troubleshoot any furnace issues, performing thorough inspections of key components like:

Thermostat Inspection

Air Filter Inspection

Ignition System Check

Heat Exchanger Inspection

Fuel Line Check

Electrical Component Inspection

Heat Exchanger Inspection

A heat exchanger inspection focuses on one of the most critical safety components of your furnace, responsible for transferring heat safely into your home’s air. Over time, normal wear can lead to cracks, corrosion, or weak spots that may allow exhaust gases to enter the living space. Our experienced HVAC technicians perform detailed visual and diagnostic inspections to identify potential issues early.

Inspect for cracks, corrosion, and structural weaknesses
Check for signs of overheating or metal fatigue
Identify early warning signs before major damage occurs
Protect indoor air quality and household safety
Improve heating efficiency and system performance
Extend the overall lifespan of your furnace

Electrical Component Inspection

Electrical component inspections ensure the systems that power and control your furnace operate safely and reliably. Our skilled technicians test and evaluate key electrical parts to confirm proper function and reduce the risk of system failure.

Inspect control boards, wiring, and electrical connections
Test igniters, flame sensors, and safety switches
Evaluate blower motors and capacitors for wear or overheating
Identify loose connections and potential electrical hazards
Help prevent unexpected breakdowns and system shutdowns
Support consistent, efficient heating performance

Lack of Maintenance: #1 Reason Why Furnaces Fail

Neglecting maintenance often results in unexpected furnace breakdowns and wasteful energy usage. Your furnace may have spent years without inspection — and may still need inspection even if it was installed within the last year.

Lack of Maintenance

Dirty or Clogged Filters

Mechanical Wear and Tear

No Pilot Light

Poor Ignition

Thermostat Failure

Why Furnace Maintenance is Important

Routine furnace maintenance is essential, as maintenance can identify potential issues before they become serious problems, reducing the risk of unexpected breakdowns.

Maintenance ensures your furnace works efficiently and properly, which will greatly extend the lifespan of your heating system. Perhaps most importantly, maintenance checks can identify safety hazards such as:

Gas leaks
Faulty wiring
Carbon monoxide leaks

Common Furnace Maintenance Services

Our skilled technicians know exactly what warning signs to look out for in your furnaces. Some of the issues that we tackle with regular maintenance include:

Dirty or clogged filters
Mechanical wear and tear
Pilot light problems
Poor ignition
Thermostat malfunctions

All of these issues can lead to intermittent or no heat — potentially disastrous in colder weather.

Experienced Technicians for Furnace Repair

After the diagnostics check, our team of skilled technicians will proceed to do the necessary repairs and replacements — all with your approval.

Thermostat Malfunctions

Ignition & Pilot Lights

Dirty or Clogged Filters

Blower Motor Failure

Faulty Heat Exchangers

Electrical Issues

Wear and Tear

Over time, moving furnace components such as belts and bearings naturally wear down, which can lead to overheating, airflow problems, and unusual noises. These sounds are often early warning signs that repairs are needed to keep your system operating safely and efficiently.

Identify worn belts, bearings, and moving components
Diagnose overheating and airflow issues
Address unusual noises and vibration
Replace igniters or pilot lights
Repair or replace blower motors
Inspect and replace dirty or clogged air filters

Other Furnace Issues

In some cases, more advanced furnace repairs may be required. Our expert technicians are equipped to repair or replace critical components to restore safe and reliable operation.

Replace damaged heat exchangers
Repair or install new thermostats
Address electrical component failures
Identify and resolve safety concerns

Cracked heat exchangers can allow dangerous carbon monoxide to leak into your home, requiring immediate attention. Our team performs thorough inspections and emergency repairs to protect your indoor air quality and ensure long-term safety and comfort.

Furnace Replacement & Installation Services

During inspections, we may find that— whether due to age, inefficiency, or frequent repairs —replacement is the best option for your furnace, rather than repair.

If that’s the case, our team will recommend the best furnaces from reliable brands based on your home’s heating requirements and your budget.

System Assessment

Furnace Selection

New Furnace Installation

Old Furnace Removal

Ductwork Repair

Warranties

New Furnace Installation

Our installation process begins with the safe removal and proper disposal of your existing furnace. From there, our skilled technicians install your new system with precision, ensuring all components are connected correctly and meet current safety and building codes.

Safely remove and dispose of the old furnace
Install the new furnace efficiently and accurately
Connect and secure existing or updated ductwork
Install and test gas line connections
Complete all electrical wiring and safety checks
Ensure the system is fully code-compliant

Post-Installation Maintenance Plans

Once installation and testing are complete, we help protect your investment with clear guidance and ongoing support. Our team provides maintenance recommendations and remains available whenever you have questions or need service.

Review regular maintenance requirements
Recommend inspection and service schedules
Provide warranty details for equipment and labor
Offer ongoing support from the Andy Lewis / Hobson team

Diagnostics

Furnace Diagnostics & Repair Services

Thermostat Inspection

Air Filter Inspection

Ignition System Check

Heat Exchanger Inspection

Fuel Line Check

Electrical Component Inspection

Heat Exchanger Inspection

Inspect for cracks, corrosion, and structural weaknesses
Check for signs of overheating or metal fatigue
Identify early warning signs before major damage occurs
Protect indoor air quality and household safety
Improve heating efficiency and system performance
Extend the overall lifespan of your furnace

Electrical Component Inspection

Inspect control boards, wiring, and electrical connections
Test igniters, flame sensors, and safety switches
Evaluate blower motors and capacitors for wear or overheating
Identify loose connections and potential electrical hazards
Help prevent unexpected breakdowns and system shutdowns
Support consistent, efficient heating performance

Common Issues

Lack of Maintenance: #1 Reason Why Furnaces Fail

Lack of Maintenance

Dirty or Clogged Filters

Mechanical Wear and Tear

No Pilot Light

Poor Ignition

Thermostat Failure

Why Furnace Maintenance is Important

Routine furnace maintenance is essential, as maintenance can identify potential issues before they become serious problems, reducing the risk of unexpected breakdowns.

Gas leaks
Faulty wiring
Carbon monoxide leaks

Common Furnace Maintenance Services

Our skilled technicians know exactly what warning signs to look out for in your furnaces. Some of the issues that we tackle with regular maintenance include:

Dirty or clogged filters
Mechanical wear and tear
Pilot light problems
Poor ignition
Thermostat malfunctions

All of these issues can lead to intermittent or no heat — potentially disastrous in colder weather.

Repair

Experienced Technicians for Furnace Repair

After the diagnostics check, our team of skilled technicians will proceed to do the necessary repairs and replacements — all with your approval.

Thermostat Malfunctions

Ignition & Pilot Lights

Dirty or Clogged Filters

Blower Motor Failure

Faulty Heat Exchangers

Electrical Issues

Wear and Tear

Identify worn belts, bearings, and moving components
Diagnose overheating and airflow issues
Address unusual noises and vibration
Replace igniters or pilot lights
Repair or replace blower motors
Inspect and replace dirty or clogged air filters

Other Furnace Issues

In some cases, more advanced furnace repairs may be required. Our expert technicians are equipped to repair or replace critical components to restore safe and reliable operation.