Furnace Replacement in Marietta, GA

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Trusted Furnace Replacement in Marietta, GA

Choosing a new furnace doesn’t have to be overwhelming. With so many systems and features to compare, All Airs Home Services makes the process simple. We help homeowners across Marietta, Kennesaw, Sandy Springs, Cartersville, and the greater Metro Atlanta area find efficient, reliable systems tailored to their home and budget.

When it’s time to replace your furnace, a few key factors will guide your decision:

  • Efficiency & Long-Term Value: A high-efficiency furnace costs more upfront but delivers lower monthly bills, quieter performance, and more consistent comfort.

  • Performance: Advanced systems distribute heat evenly and maintain steadier temperatures throughout your home.

  • AFUE Rating: AFUE (Annual Fuel Utilization Efficiency) measures how much fuel is turned into heat. A 90% AFUE furnace converts 90% of fuel into warmth and loses only 10% as waste — meaning better efficiency and long-term savings.

At All Airs, we combine expert installation, honest recommendations, and a commitment to lasting comfort. Whether your furnace has reached the end of its life or you’re upgrading for energy savings, our licensed technicians make replacement easy from start to finish.

Reliable Heater Repair in Marietta Backed by 700+ 5-Star Reviews

Christian E.
When Alex arrived, he immediately recognized the problem and proceeded to do the repairs on our unit. Once the repairs were completed, he continued to inspect the complete system and perform a complete system check to ensure no other issues were found. His knowledge and professionalism were of the highest standard and we appreciate his quick response!
Joan M.
I highly recommend All Air Home services. From beginning to end, from the office staff, the very hard workers, the wonderful system, I highly recommend this company.
Scott F.
Great experience. We had two calls that didn’t go well. The we got Devon with All Air and he identified the issue immediately and we were up and running in a couple hours. FIVE STARS to Devon!
All Airs Home Services professional wiring electrical components safely

Signs You Might Need Your Furnace Replaced

Not sure whether to repair or replace your system? These common signs can help you decide:

  • Your furnace is over 15 years old. Most systems start losing efficiency and reliability after a decade of use. If yours is nearing this age, replacement is often the smarter investment.

  • Your energy bills are climbing. An older or inefficient furnace can waste energy, causing your monthly costs to rise even when usage stays the same.

  • You’re seeing more dust than usual. Excess dust in your home can mean your furnace is no longer filtering or circulating air properly.

  • Your system cycles too often—or not enough. If your furnace is constantly turning on and off, or running nonstop, it’s a sign that it’s struggling to maintain consistent performance.

If any of these sound familiar, it may be time to explore your replacement options. Call All Airs Home Services today to schedule an inspection and discover how a new, energy-efficient furnace can improve your comfort and lower your energy costs.

When's the Right Time for Furnace Replacement?

Sometimes the answer is clear—like when repair costs start approaching the price of a new furnace. Other times, it’s not as obvious. Even if your repair bill seems minor, it may be smarter to invest in a replacement, especially if your furnace is aging or requiring frequent service. Over time, those small fixes can add up.

Older furnaces also tend to be less efficient, meaning they use more energy to deliver the same amount of heat. When you factor in rising utility costs, an outdated system can end up costing more to operate than it’s worth. Upgrading to a modern, high-efficiency furnace can not only improve comfort and reliability but also save you money on energy bills for years to come.

Explore our flexible financing options and upgrade your home’s comfort with convenient payment plans that fit your budget.

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Get in Touch with All Airs

No matter where you live in Metro Atlanta, All Airs is ready to restore your comfort quickly and affordably. We proudly provide heating repair, installation, and maintenance across: Marietta, Kennesaw, Sandy Springs, Cartersville & Metro Atlanta.