Furnace

A furnace is your home's heating powerhouse, converting fuel or electricity into warm air that circulates through your living spaces. Whether you're dealing with routine maintenance, strange noises, or considering an upgrade to a more efficient model, understanding your system helps you make smarter decisions. From repairs to full replacements, Angi connects you with local pros and resources to keep your home comfortable year-round.

Related to Furnace Service

Furnace Service Articles and Advice
Jenna Jonaitis  •  May 18, 2026
16 Furnace Maintenance Tips to Keep Your Home Cozy All Season Long
Prepping your furnace can extend the life of your unit and stop costly repairs. Follow these furnace maintenance tips for a warm, stress-free winter.
Dan Simms  •  May 16, 2026
5 Signs That Your Furnace Ignitor Is Bad and How to Check It
If you’re having trouble with your furnace firing up or your house just won’t get warm, use this simple DIY guide to check if your furnace ignitor is bad.
Laura Hennigan  •  May 5, 2026
In the Market for a New Furnace? Here’s Everything You Need to Know
System type, desired comfort features, and energy efficiency are just a few of the decisions you will need to make before investing in a new furnace. Here are eight tips to consider when evaluating the right type of furnace for your home.
C.E. Larusso  •  May 5, 2026
Oil Heat Pros and Cons: Why an Oil Furnace May Be for You
Oil furnaces are safer and heat large spaces faster than alternative methods. But the equipment and the fuel come at a premium. Should you make the switch?
Sophie Yalkezian  •  May 5, 2026
What to Do Before Turning the Heat On for the First Time in Winter
Warm weather usually means your furnace is no use. But before turning on the heat this winter, you’ll need to do a few things to keep it fully functional.
Ginny Bartolone  •  May 5, 2026
Furnace Efficiency Ratings: What You Need to Know
Is your furnace the right match for your home? The U.S. Department of Energy's AFUE ratings could be the secret behind finding the most cost-effective model.
Sara Coleman  •  May 5, 2026
Condensing vs. Non-Condensing Furnace: Which Is Better for My Home?
In the battle of condensing versus non-condensing furnaces, the latter wins in energy efficiency. Does that mean it’s the best choice? It all depends on your home and budget.
Lawrence Bonk  •  May 5, 2026
Oil vs. Gas Furnaces
Is it time for a new furnace? Oil and gas are two options, and both have pros and cons. Here are some tips when choosing the best furnace for your home.
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Common Furnace Service Questions

Yes, two-stage furnaces are quieter than single-stage ones. There are two reasons for this. First, two-stage furnaces routinely operate at a lower setting, which makes less noise than a full-powered single-stage furnace. Second, two-stage furnaces don’t turn on and off like their single-stage counterparts. Single-stage furnaces often make rattling, popping, banging, and scraping sounds.

Costs depend on furnace size, efficiency rating, labor, and whether additional ductwork is needed.

Common furnace problems that require servicing or repair include clogged filters, faulty ignitors or ignition failures, broken thermostats, fuel pump issues, and airflow obstructions or other airflow-related issues.

In most areas, a permit is required to install or replace a propane furnace. Permitting ensures the work meets local building codes and safety standards. Your installer will often handle the permitting process, ensuring everything is documented correctly and inspected for compliance. Ensure that you ask your installer about permitting requirements before the installation begins.

Expect to pay between $3,800 and $10,000 to purchase and install a new gas furnace. The average gas furnace cost is $7,000. A modulating gas furnace costs the most, whereas a single-speed furnace costs the least but is also the least efficient. Gas furnaces with a higher efficiency rating will also cost more.