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Furnace Installation & Replacement Services in St. Louis, MO

Furnaces are just like any other major appliance in your home — they’ll eventually need replacing. When it’s time for a new heating unit at your home, count on Classic Aire Care to deliver a high-quality furnace installation. Our NATE-certified technicians bring years of experience to every furnace job we take on, so we’ll have your home warm and cozy in no time.

Contact Classic Aire Care at 314-329-1943 to begin planning for a furnace replacement at your St. Louis home with a FREE estimate.

Signs You Need a New Furnace

When a furnace is on its last legs, it will usually show signs that it’s time for a replacement. You may want a new furnace if:

  • Your unit smokes or sparks while in operation
  • Your unit only heats certain rooms of your house
  • Your unit needs regular repairs
  • Your unit is over 15 years old

Schedule Your Service Today!

Benefits of Installing a New Furnace

Installing a new furnace comes with an abundance of benefits. Just a few perks of scheduling a new furnace installation include:

  • Consistent heat in every room
  • Fewer repair needs
  • Lower chance of breakdown
  • Improved energy efficiency
  • Lower utility bills

Enjoy all the advantages of a new heating system at your home in the St. Louis area. Call 314-329-1943 or contact us online to get started.

Types of Furnaces We Install

A home high efficiency furnace with a residential gas water heater & humidifier.

Furnaces come in a variety of fuel types. At Classic Aire Care, we can work on any style of furnace you may have at your home. Our team can replace your gas, oil, or electric furnace without a problem. We’ll make sure that the fuel source is connected correctly and that your heater will run safely and consistently as you need it.

No matter the type of furnace, our team can install it. Call 314-329-1943 or contact us online to request a free estimate for a new electric, gas, or oil furnace.

Why Choose Classic Aire Care?

For nearly 100 years, we have been making people comfortable in their St. Louis homes. Our NATE-certified technicians are specially trained for every project they work on and are set on guaranteeing your 100% satisfaction. We use the latest technology and expertise to resolve all of your HVAC issues promptly and correctly.

Don’t forget to check out our deals and financing specials to find out how you can save on a new furnace!

Our Guarantees

  • Classic Ultimate Quality Guarantee: Since installing a new heating system is such a substantial investment, we guarantee we use the highest quality materials to the manufacturer’s specifications. With us, you can trust the system is installed correctly the first time, so there are no future problems. Our highly trained installation crew is experienced in only using the industry’s best practices.
  • Classic 365-Day Guarantee: This guarantee ensures you are totally satisfied when you purchase a new system from us. If for some reason, you aren’t completely satisfied with your system, its performance, or any component within the first 365 days of installation, we will work to make any changes needed to provide you with complete satisfaction. We can even replace the system or part if required.
  • Classic No Lemon Guarantee: If a furnace has a cracked heat exchanger, it can pose a serious safety issue. Since your safety is of the utmost importance to us, if your furnace’s heat exchanger isn’t working properly within the first five years of installation, Classic Aire Care will install a new unit of equal value instead of replacing or repairing the exchanger.

Make sure your home has a top-quality furnace for the long winter ahead. Contact Classic Aire Care now at 314-329-1943 to schedule your furnace installation.

Furnace Replacement FAQs

Is your furnace on its last leg? If you’ve been relying on your furnace for 15 to 20 years, it’s time to consider investing in a new, energy-efficient furnace for your St. Louis-area home.

Classic Aire Care offers the best gas furnace products on the market. We’ll expertly install the right furnace for you based on your budget and home specifications. Contact us today to set up an appointment.

Furnace size is dictated by British Thermal Unit output. One BTU is required to heat 1 pound of water by 1 degree Fahrenheit. If that sounds confusing, just remember that 1,000 square feet of living space requires about 30,000 BTUs. The skilled technicians at Classic Aire Care know all about furnace sizing and BTUs and will consider these and more factors before recommending a new furnace:

  • Your home’s age: Older homes may need larger furnaces due to a lack of energy efficiency
  • Your insulation: Poorly insulated homes require more BTUs
  • Your windows and doors: The number and energy efficiency of your doors and windows play a big role in how large your furnace should be for adequate heating output
  • Square footage: Of course, the larger your home, the more BTUs necessary to heat it
  • Your budget: Furnaces with the highest energy ratings are more expensive than those that meet only the minimum requirements

The technicians at Classic Aire Care are highly trained in choosing the highest energy-rated furnace for your budget. We offer convenient payment plans designed to alleviate the worry associated with having to replace a vital, expensive piece of HVAC equipment.

Don’t worry. An average gas, electric, or oil furnace replacement usually takes between four to 10 hours. Our team strives to install your unit in one workday. However, we won’t rush — we’ll expertly install your new furnace, check it to ensure it works correctly, and stand by our work with a 100% satisfaction guarantee. In fact, if you’re not happy with it after one year, we’ll make any modifications necessary, including replacing the unit.

Call the pros at Classic Aire Care at 314-329-1943 today to learn more about furnace replacement for your St. Louis home.

Deals & Specials

Maximize Your Savings Up To $3,135 In Instant Rebates Expires 05/31/24 Rebate amounts vary based on equipment selected. All rebates and terms will be itemized in writing prior to purchase.

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0% Interest For 18 Months

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Delighted Customers


I can't recommend Classic Aire Care highly enough!!! They are excellent. Our technician (Christian) was the absolute best! He explained everything, and corrected all of our HVAC issues! He even cleaned the outside of my furnace!!! Trust, honesty, and professionalism! Qualities of an employee and in…

Mike J

Was able to fix our older a/c unit in one visit. Very good service. Technician was very professional. This company also installed a new furnace a few years ago for us, great service came and installed a new furnace in the middle of winter when it…

Linda H

I was very pleased with Shaun E.’s maintenance service of my AC. Shaun was very personable and diligent in cleaning my unit inside and out. While he was working, Shaun noticed that the shut off water valve for the outside hose hook up he was using…

Donna S

Vince, the technician, was very polite and timely. Took his time to answer any and all questions we had. Also made sure we completely understood the service he provided. Great guy working for a great company. Excellent experience.

Kristopher L

My new ac system shutdown within the first few days of using it this spring. I called Classic Aire Care and they were able to send a technician out within 24 hours. He discovered the problem within minutes! A small piece a debris blocking a drain…

Terri K

We were out of town and came home to an AC that wasn't blowing. Christian got here within 4 hours of my initial contact and got us back up & cooling over July 4th weekend. He found some other issues but got my unit running so…

Stacy D