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Residential Heating & Furnace Repair Company in Metro Atlanta

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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 checks the critical part of your furnace that safely transfers heat to your home’s air. Over time, heat exchangers can develop cracks, corrosion, or weak spots that allow exhaust gases to mix with indoor air.

Our experienced HVAC techs perform a careful visual and diagnostic inspection to identify early signs of wear or damage. Catching heat exchanger issues early helps prevent safety hazards, improves heating efficiency, protects indoor air quality, and extends the life of your furnace.

Electrical Component Inspection

An electric component inspection ensures the electrical systems that power and control your furnace are operating reliably and safely. Our skilled techs examine and test parts like the control board, wiring connections, igniter, flame sensor, blower motor, capacitors, and safety switches to confirm proper function and detect overheating, wear, or loose connections.

This inspection helps prevent unexpected breakdowns, supports steady and efficient heating, and reduces the risk of electrical-related failures. Having these components checked annually keeps your furnace running smoothly, improves performance, and adds peace of mind during the cold season.

Lack of Maintenance is #1 One 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

Moving parts like belts and bearings naturally wear out, causing overheating or airflow issues. This wear and tear often causes odd noises, a telltale sign your furnace needs some repairs. Other common repairs due to wear and tear include:

Igniter or pilot light replacement
Blower motor repairs
Air filter replacement

Other Furnace Issues

Our expert repair team may also replace heat exchangers, thermostats, and electrical components.

It’s important to note that cracks in the heat exchanger can lead to dangerous carbon monoxide leaks that require prompt emergency repairs; we’ll make sure no such leaks affect your home, leading to long-lasting indoor air quality.

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

Before installation, our skilled technicians will safely remove and dispose of the old furnace. Then, we’ll efficiently set up the new unit. We handle all necessary connections to ensure everything is secure and up to code, including:

Ductwork
Gas lines
Electrical

Post-Installation Maintenance Plans

After installation and testing, we’ll provide information on regular maintenance, recommended inspection schedules, and the warranties for your unit and our services. You can contact the Andy Lewis / Hobson team with questions any time.

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

Electrical Component Inspection

Common Issues

Lack of Maintenance is #1 One 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: