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
Jenna Jonaitis  •  Jul 9, 2026
10 HVAC Secrets That Can Help You Boost Efficiency and Save Money
Make your home comfortable while reducing your energy use and cost. Check out these expert HVAC secrets to maximize your home’s heating and cooling efficiency.
Marwa Hasan  •  Jul 9, 2026
Can You Add Central Air to a Baseboard-Heated House?
A central air system is great for someone looking to cool and heat their home all year round. Even if your home uses baseboard heating, you can still make the switch. Read on to learn more about adding central air to a baseboard-heated house.
Conroy Baltimore  •  Jul 9, 2026
6 Ways to Protect Your HVAC Unit in Severe Weather
Is your HVAC unit ready for the next big storm? If not, here are some air conditioner maintenance tips for bad weather conditions.
Tyler Lacoma  •  Jul 9, 2026
Mini Split AC vs. Central Air: What’s the Difference?
Learn the difference between mini split AC vs. central air. For example, central air has air ducts, but a ductless mini split AC cools without them.
Breyden Kellam  •  Jul 9, 2026
Where to Put Your HVAC Unit: 7 Tips to Consider
The location of your HVAC unit matters more than you might think. Here’s where to put an HVAC unit for optimal performance and longevity.
Lawrence Bonk  •  Jul 9, 2026
Does My Home Warranty Cover an AC Tune-Up? HVAC Maintenance Plans vs. Home Warranties
Debating whether to cover your HVAC system through a maintenance plan or a home warranty? Check out this guide to decide which option works best for you.
Veronica Sparks  •  Jul 9, 2026
What Is a Home Energy Audit? Understanding the Key to Energy Efficiency
If you’re not sure your home is as energy efficient as it could be, an audit may be necessary. But what is a home energy audit, and what does it entail?
Kate Fann  •  Jul 9, 2026
Mini Splits vs. Heat Pumps: Learn the Pros, Cons, and Costs
Mini split versus heat pump: which one to choose? Explore how these energy-smart HVAC systems stack up in cost, comfort, and efficiency.
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Common HVAC Questions

Regular filter changes and annual service checks maintain optimal function.

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.