HVAC

HVAC stands for heating, ventilation, and air conditioning, and it's essentially what keeps your home comfortable year-round. Whether you're troubleshooting a furnace that won't kick on, upgrading to a more efficient system, or scheduling routine maintenance, understanding your options makes all the difference. Angi helps you connect with local pros and provides the resources you need to make informed decisions about your home's climate control.

Related to HVAC

HVAC Articles and Advice
Deirdre Sullivan  •  Apr 10, 2026
The Ultimate HVAC Installation Checklist
Ready to be out with your old HVAC unit and in with the new? Before hiring a pro for the job, read this checklist to ensure you’re getting a high-quality installation.
Melissa Graham  •  Apr 10, 2026
Are HVAC Surge Protectors Necessary? 5 Benefits to Consider
HVAC surge protectors are necessary to protect your system and keep it running smoothly. Read our guide to learn the benefits of an HVAC surge protector.
Anna Baluch  •  Apr 10, 2026
Can HVAC Technicians Do Electrical Work?
HVAC technicians can only perform basic electrical tasks related to HVAC systems. Here’s what tasks they can perform versus what an electrician can do.
Kat Brancato  •  Apr 10, 2026
What Is a Split System HVAC?
What is a split system HVAC exactly? Learn what a split system HVAC is, the different types there are, how long they last, and more.
Rachel Presser  •  Apr 10, 2026
How to Evaluate HVAC Quotes: 7 Questions to Ask Your Technician
Getting HVAC quotes doesn’t need to be confusing or frustrating. Find out what to ask your HVAC contractor, why you should get multiple quotes, and more.
Paige Bennett  •  Apr 10, 2026
What Is SEER and SEER2? Everything You Need to Know About HVAC Efficiency
When shopping for an HVAC unit, you may be wondering, “What is SEER?” Learn how to read SEER ratings plus the differences between SEER and SEER2.
Dan Simms  •  Apr 10, 2026
Did I Receive an Improper HVAC Installation?
If you recently had a new HVAC system installed but are seeing high energy bills or uncomfortable living spaces, something might have been done incorrectly.
Taylor Freitas  •  Apr 10, 2026
HVAC Terms: Get Familiar With These Essential Heating and Cooling Concepts
Need to brush up on your HVAC terms before investing in a new system? This guide explains the meanings of the most common heating and cooling phrases.
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Common HVAC Questions

BTUs, or British Thermal Units, measure the amount of heat needed to increase a pound of water’s temperature by 1 degree Fahrenheit. In HVAC, tonnage refers to a system’s ability to cool a space by removing heat, and it is dependent on how many BTUs your unit absorbs and removes per hour.

The average cost for HVAC repairs is approximately $350. However, prices can range from as low as $100 to as high as $3,000 or more, depending on the type of repair and the extent of the damage. For example, a relatively inexpensive capacitor replacement may cost $100 to $500, while a major compressor repair can range from $750 to $2,000. Other common repairs and their typical costs include:

  • Blower motor repair: $200–$500

  • Circuit board repairs: $100–$600

  • Evaporator or condenser coil repair: $400–$1,500

  • Heat exchanger repair: $100–$200

  • Thermostat repair: $175

A new HVAC system combines components to control indoor temperature and air quality. Features include a furnace or heat pump and an air conditioner or evaporator coil, depending on the climate requirements. It also involves a network of ductwork for air distribution, a thermostat for temperature regulation, and electrical connections. Air purifiers or humidifiers can be integrated to improve indoor air quality.

During heating and cooling service projects, several hidden or unexpected costs can arise. Common expenses include permit and inspection fees, upgrading outdated electrical panels, and repairing, replacing, or modifying aging ductwork. In older homes, you might also face costs for asbestos abatement or addressing outdated wiring. Other potential expenses involve bringing systems up to current building codes, making energy efficiency improvements, or fixing issues discovered during inspection, such as refrigerant leaks. Depending on the project's scope, you might also need foundation or chimney modifications. Local factors, like weather-related delays, can also impact the budget, as can the need for emergency HVAC solutions.

Yes, professional installations include trenching or borehole drilling required for ground loops.