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
Deane Biermeier  •  May 30, 2026
How Much Does a Furnace Inspection Cost? [2026 Data]
Inspections are an essential part of furnace maintenance. Prevent inconvenient breakdowns by budgeting for furnace inspection costs and repairs.
Scott Dylan Westerlund  •  May 30, 2026
How Much Does Furnace Control Board Replacement Cost? [2026 Data]
If your furnace is malfunctioning, it could be a faulty control board. Find out what a furnace control board replacement costs for parts, labor, and more.
Gemma Johnstone  •  May 30, 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.
Laura Hennigan  •  May 22, 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.
Terri Beth Miller  •  May 22, 2026
4 of the Best Types of Furnace Filters
If you don’t maintain your heating and cooling system properly, home can feel like anything but the haven it should be. But nurturing your HVAC means learning about the different types of furnace filters so that you can choose the best for your home.
Paige Bennett  •  May 22, 2026
Here’s How Often to Change Furnace Filters and Other HVAC Filters
Dirty filters can make a furnace and AC work harder, increasing your bills. Here’s how often to change your HVAC filters to keep the system running efficiently.
D.P. Taylor  •  May 21, 2026
Who to Hire to Install a High-Efficiency Furnace
While it’s tempting to save money by trying to install a high-efficiency furnace yourself, here’s why you should hire an HVAC technician instead.
Kelly Weimert  •  May 21, 2026
How to Hire a Furnace Installation Pro
Furnace installations are complex projects that require qualified pros. Use this guide to understand furnace installation services, typical costs, and what to confirm before hiring a pro.
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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.