How much does it cost to have your furnace checked out?

Author: Frederick Greenfelder V  |  Last update: Tuesday, July 8, 2025

A furnace inspection costs an average of $80 to $100. Your cost may increase if more furnace repairs are needed, or based on the specifics of your HVAC system. If detrimental issues are uncovered, you'll be quoted for the repair or potential replacement of your HVAC equipment.

What does a furnace check-up include?

For a better understanding, here's a list of what's included in a furnace maintenance check:
  • Inspect the air filter. ...
  • Test the thermostat: for proper operation sure it's set to heat and the battery works.
  • Test the Ignition system for proper operation.
  • Inspect the heat exchangers for any cracks or other signs of damage.

How often should a furnace be inspected?

Ideally, you would have your furnace serviced at least once a year. To elaborate on that point, you should have your furnace serviced at least once a year to catch any problems early on and to keep your furnace in top condition. Professional maintenance and cleaning provide many benefits, which we'll cover next.

What is the most expensive part to fix on a furnace?

A heat exchanger replacement is often one of the most costly repairs in a furnace, and the expense can sometimes rival that of installing a new furnace. Typical replacement costs vary widely but can easily reach several thousand dollars, especially if labor costs are factored in.

What does furnace cleaning consist of?

How to clean a furnace? Turn off the power and cut off the fuel supply to the furnace, clean furnace surfaces and combustion chamber, remove the blower, clean the blower carefully, clean the flame sensor, lubricate the oil caps, replace the air filter, and activate the burners once you're done.

Yearly Maintenance And Service On A Gas Furnace For Beginners!

How much does a furnace inspection cost?

Furnace inspections cost $100 on average, depending on the type of furnace and its size. Most people spend between $80 and $200. A furnace inspection costs $100 on average, but prices can range from $50 on the low end to $300 or more.

What's the difference between furnace cleaning and duct cleaning?

Regular duct cleaning can improve indoor air quality and prevent the buildup of harmful substances in the ducts. Furnace cleaning, on the other hand, refers to the cleaning and maintenance of the furnace itself. This includes tasks such as cleaning the burners, checking the blower motor, and replacing the air filter.

What is the most common furnace failure?

One of the most common furnace problems is a malfunctioning thermostat. A sure sign your thermostat isn't working properly is if your fan is constantly running. This will cause your thermostat battery to run, and cause your furnace to work inefficiently.

Does insurance cover furnace failure?

While there's no such thing as furnace or boiler replacement insurance, homeowners insurance may cover the cost to replace your furnace or boiler if it's damaged or destroyed by a covered peril.

Is it worth fixing a 20 year old furnace?

Repair: If your furnace system is less than 15 years old and the cost of repair is less than half the cost of replacement. Replace: If your furnace system is more than 15 years old and requires a costly repair to maintain efficiency.

Who checks your furnace?

Additionally, many heating system manufacturers require furnace inspections each year to uphold their warranties. If you fail to have this service performed by a licensed HVAC technician, you could void your warranty coverage.

How much should a furnace tune-up cost?

The average furnace tune-up cost is $100 but can range from $70-200, depending on where you live and whether you have a gas furnace or an oil furnace.

How often should I flush my water heater?

Most homeowners should flush their water heaters every 6 months or so, but if you have extremely hard water, you may want to do it more often. Flushing your hot water heater could be necessary as often as every few months depending on the mineral content of your local water supply.

How long does a furnace checkup take?

On average, furnace cleaning and tune-up services last just one to two hours. During these appointments, our technicians inspect all interior and exterior furnace components, calibrate thermostats, and inspect and clean furnace venting systems. We also: Inspect heat exchangers for build-ups, blockages, and cracks.

How much does a furnace cleaning cost?

The cost of furnace cleaning can vary depending on several factors, but on average, it ranges from $60 to $400. While this might seem like a wide range, the final price will depend on things like the size of the furnace, its condition, and the specific services included in the cleaning.

Is a furnace tune up worth it?

Improved efficiency, extended lifespan, enhanced safety, and peace of mind are all compelling reasons to schedule regular furnace maintenance. While the cost may vary, the potential savings on energy bills and repair costs make it a worthwhile investment for any homeowner.

How much does it cost to diagnose a furnace?

Cost Implications And Repair Vs.

Is It Worth Fixing A Furnace? Given the high heat exchanger cost and the potential HVAC inspection cost, which can range from $250 to $400 with an average of around $300, homeowners often face the tough decision of whether to repair or replace the furnace entirely.

How long do furnaces last?

The Average Furnace Lifespan

A well-maintained furnace can last at least 15 to 20 years, but completing annual maintenance and being diligent with repairs can extend its life even longer.

How much does a new furnace cost?

You should expect to spend between $3,800 and $12,00 on a new furnace, including both the unit and installation costs. Factors influencing the price include the type of furnace (gas, electric, or oil), the unit's efficiency rating, and the complexity of the installation.

What fails first on a furnace?

If the flame sensor fails, your furnace may not be able to start or may shut down shortly after starting. Common causes of flame sensor failure include corrosion, dirt buildup, or a broken wire. The gas valve controls the flow of gas to the furnace. If the gas valve fails, your furnace won't be able to produce heat.

How much does a furnace sensor cost?

Most furnace flame sensors cost less than $20, but if you opt to have a professional HVAC technician make the repair, you can expect to pay between $75 and $250. Need help replacing your flame sensor? Book an appointment with a local expert now.

Who do I call if my furnace isn't working?

If your furnace's problems continue, contact an HVAC expert. Also, if you notice discoloration when you check the pilot light, get professional help. If there are cold spots in your home, even though hot air is coming out of the air vents, the issue could be different from your furnace not working.

Why is duct cleaning so expensive?

Factors Influencing Air Duct Cleaning Costs

Size of Home/HVAC System: Larger homes with more ductwork naturally require more time and effort to clean, leading to higher costs.

Is it better to clean ducts or dirty ducts?

Even if your ducts are dirty, cleaning them probably won't provide any measurable benefits. In fact, the little independent research performed on duct cleaning indicates that the process stirs up so much dust that it creates a bigger problem than it solves.

What should be included in a furnace cleaning?

HOW TO CLEAN A FURNACE IN 4 STEPS
  1. Turn off Power and Gas to the Furnace. Before attempting to clean your furnace, it's always a good idea to shut off power to the unit and also shut off the gas. ...
  2. CLEAN THE BLOWER. ...
  3. CLEAN THE FURNACE FLAME SENSOR. ...
  4. CLEAN THE FURNACE COILS.

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