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
Alison Kasch  •  Oct 30, 2026
How Much Does a Blower Motor Replacement Cost? [2026 Data]
When your HVAC system is acting up, it could be the blower motor to blame. See how much blower motor replacement costs and what impacts the price here.
Paige Bennett  •  Oct 29, 2026
How Much Are Outdoor Wood Furnace Prices? [2026 Data]
When you’re looking for a way to keep warm this winter, check out outdoor wood furnace prices based on size, installation, and other cost factors.
Mitchell Grant  •  Oct 29, 2026
How Much Does It Cost to Replace a Gravity Furnace? [2026 Data]
Gravity furnace replacement cost can be high if there is asbestos present. Use this cost guide to help you decide if you should repair or replace it.
Gemma Johnstone  •  Oct 29, 2026
How Much Does a Gas Furnace Cost? [2026 Data]
Gas furnace replacement costs depend on the type of furnace you want and installation fees. Our guide explains all the factors involved in a new furnace cost.
Tyler Lacoma  •  Oct 29, 2026
How Much Does It Cost to Replace an Oil Furnace With Gas? [2026 Data]
Switching from oil to gas heating could impact your savings. This guide will help you understand the cost to convert from an oil furnace to a gas furnace.
Angi  •  Oct 29, 2026
How Much Does It Cost to Install a Propane Furnace? [2026 Data]
Discover the cost to install a propane furnace, including average prices, key cost factors, and tips to help you budget for your home heating upgrade.
Lyle Hendriks  •  Oct 28, 2026
How Much Does It Cost to Move a Furnace? [2026 Data]
Moving a furnace a few feet is not a huge matter. However, moving a furnace to another room or different part of the house will probably cost a few thousand dollars. It's a major job involving numerous different professionals.
Deane Biermeier  •  Oct 26, 2026
How Much Does Heat Exchanger Replacement Cost? [2026 Data]
Discover heat exchanger replacement costs to learn about price factors, labor, and ways to save before hiring a pro or starting your project.
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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.