How much does it cost to replace furnace and AC at the same time?

Author: Kaley Bechtelar  |  Last update: Tuesday, September 30, 2025

The cost of replacing both your air conditioner and furnace at the same time is around $6,500 – $12,500. You will save about $750 – $1,000 by replacing them both together, rather than doing them separately.

How much does it cost to replace a furnace and air conditioner?

Furnace and AC replacement costs vary. A new furnace costs $4,800 on average, with an average range between $2,800 and $6,900. The cost to install a new AC unit is between $3,900 and $8,000 on average. However, the cost of a new HVAC system together is $7,500 on average, often in the range of $5,000 to $12,500.

Is it cheaper to replace a furnace and AC together?

While this might seem like a significant investment, the combined savings on installation, energy, and repairs can make it a financially sound decision in the long run. Replacing both your furnace and AC at the same time is generally cheaper and more efficient.

What is the $5000 rule for HVAC?

The $5,000 rule is an industry-accepted rule for determining whether to repair or replace an HVAC system. Multiply the age of your equipment by its estimated repair cost. If the outcome is under $5,000, you should probably repair it. If over $5,000, you should replace it.

Is it worth replacing a 20 year old furnace?

Older furnaces need annual check ups. Main thing is the heat exchanger getting a crack, which could lead to fire or carbon monoxide poisioning. 20 years is a good time to start considering a new one but not essential, if the tech that comes to clean the burners sees an issue they will point it out to you.

Should I Replace My Furnace And AC Together?

What time of year is cheapest to replace furnace?

For people taking a proactive approach, doing a furnace replacement during the “shoulder seasons” of spring and autumn may offer lower prices, shorter lead times, and a better selection of products and service appointment availability.

Is it worth fixing a 20 year old AC unit?

However, if you have taken proper care of your equipment over the years, it may have plenty of life left. 14 to 20 years old: This is the average life span of well-maintained HVAC equipment. A breakdown at this age may warrant a replacement.

Does new HVAC qualify for tax credit?

The Inflation Reduction Act (IRA), effective through 2032, offers annual tax credits up to $2,000 for ENERGY STAR-certified heat pumps and other high-efficiency HVAC systems. This recurring credit can be claimed each year that eligible improvements are made.

What is the most expensive part to replace on an AC unit?

Usually, it is a quick fix, but sometimes the failure can be caused by a much bigger problem. The most expensive part of an AC unit to replace and repair is the air compressor.

What is the $2500 expense rule?

Adopting the de minimis safe harbor provides several advantages: Simplified tax recordkeeping: Property owners can immediately deduct expenses for purchases like appliances or minor upgrades if they cost $2,500 or less per item. This ease of documentation aids in maintaining straightforward tax records.

Why is replacing a furnace so expensive?

Installation Entails More than Just the Furnace

For a gas-powered furnace, a contractor must set up a gas connection and vent. Installing an electric furnace requires running wiring, adding a circuit breaker, or perhaps updating an electrical panel. Holes are often drilled for pipes and wires.

Will AC work if furnace is broken?

However, the furnace and AC are two distinct appliances that run independently. Because of this, it's unlikely that your furnace and air conditioner will break down at the same time. Therefore, replacing the malfunctioning appliance and keeping the other one if it is still working well may make sense.

How long does it take to replace a furnace and AC?

Also, a lot of this information changes subtly if you're installing an air conditioner at the same time. It will usually take a full day (6-10 hours) if you're installing a full system with a furnace and A/C unit, and will occasionally stretch into two days if a lot of modifications are needed.

Does homeowners insurance cover HVAC?

Homeowners insurance covers HVAC systems when the damage is a result of a covered disaster or peril, including high winds, fallen trees, theft, hail or even a fire. So if lightning strikes your unit and damages its electrical components, your homeowners insurance policy would probably cover it.

Is it cheaper to replace furnace and AC together?

You'll be happy to hear that while your exact cost savings will vary based on the systems that you choose to install, we've estimated that bundling furnace and AC installations will save you an average of $2,000 and $5,000.

What is the labor cost to install a furnace?

Labor: Typical labor costs can range from $50 - $100 per hour for a licensed technician. Each additional team member will be an additional charge. Depending upon the complexity of the job, a new furnace installation can take 10-15 hours!

How much does a full AC replacement cost?

It costs an average of $5,955 to install a new AC, but prices commonly range from $3,906 to $8,016, depending on the unit's size and type. A pro can provide an accurate quote based on your needs. The key to beating the heat this summer is running a good AC.

Why is HVAC replacement so expensive?

Few industries have been as affected by the turbulent global landscape as HVAC. Rising raw material costs, supply chain disruptions, labor shortages, environmental regulations, and consumer demand spikes have all contributed to the noticeable escalation in equipment and installation prices.

Why is fixing AC in car so expensive?

However, why is car AC repair so expensive? This is because the system is complicated, AC services are in high demand during summer, and prevention is better than cure. To begin with, let us dissect the constituents of a car AC system.

Can I deduct my new furnace on my taxes?

The expenditures can be for a newly built or existing home but only apply to residential properties, not commercial. If you added an energy-efficient water heater, furnace, boiler, or central air conditioner to your home in 2023, you can claim a deduction in 2024 valued at $1,200.

Can you write off home repairs on your taxes?

As an average homeowner, the answer is generally no as most remodeling projects completed at your personal residence can't be written off. However, there are certain cases that can qualify your bath remodel as tax deductible. One would be medically necessary changes.

What appliances are eligible for the Inflation Reduction Act?

The Inflation Reduction Act provides home appliance rebates for discounts on electric energy-efficient appliances like Induction cooktops, ranges and heat pump laundry appliances. Sign up to be notified when rebates are available in your state.

Is it worth repairing a 10 year old air conditioner?

If your aircon is older than 10 years and plagued with ongoing issues, you might want to consider replacing your air conditioner. A benefit of replacing your aircon is that you will get a more energy efficient model which would ultimately save you a lot of money on power bills.

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.

How much for a new HVAC?

An HVAC replacement cost is $7,500 on average. This range could be as low as $5,000 or as high as $12,500, depending on the type and size of your unit, the brand, and labor costs. Your overall cost for a new HVAC unit could reach $22,000 if you add new ductwork and additional features like a HEPA filtration system.

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