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Grand Oaks Heating and Cooling has been a trusted AC contractor in St. Charles MO since 1990.
(636) 926-2007
82 Clairen Drive Foristell, MO 63348
 
For Air Conditioning repair in St. Charles MO, like us on Facebook!
For Air Conditioning repair in Wentzville MO, visit us on Google Plus!
Serving the St. Charles county, Metro area, Lincoln and Warren counties
Have You Scheduled Your Air Conditioner Tune-up?
It's springtime again!
Get your home ready for the warmer months with an air conditioner tune up
when you sign up for our Preferred Customer Club for $16.58/Month.

Let Grand Oaks keep you comfortable through every season!
Call Grand Oaks Heating and Cooling for reliable Air Conditioning replacement in St. Charles MO.
Have You Scheduled Your Furnace Tune-up?
The temperatures are dropping as fast as the leaves on the trees!
Make sure your home is prepared for the colder months ahead by getting a tune-up on your furnace.

Let Grand Oaks keep you comfortable through every season!
Grand Oaks Heating & AC has experts ready for any residential AC repair or replacement in St. Charles MO.
We can service your castle, whether it is a 25,000 foot home with a swimming pool or a small trailer.
We install and service the latest heating and cooling technologies, including many types of heat pumps.
Grand Oaks Heating & AC has experts ready for any commercial HVAC, Air Conditioner Install, service or replacement in St. Peters MO.
A proper maintenance will help extend the life of your equipment. Our CMA's will help detect potential problems, therefore preventing you from going without heat and cooling. Now that's PEACE OF MIND.
Grand Oaks Heating & AC offers special coupons and discounts on your Air Conditioning repair or replacement in St. Charles MO area.
We install and service the latest heating and cooling technologies, including many types of heat pumps. Please take a look at the discount coupons we offer for our services.

Grand Oaks Air Conditioning repair service gives a no service fee guarantee in Wentzville MO.
Air conditioner repair is one of the most cost-effective ways to stay cool in the summer and keep your system running at full capacity. No job is too big or small, and we deliver 100% customer satisfaction on every project.
Grand Oaks Heating seeking qualified HVAC Installer in St. Charles MO.
We are looking for qualified technicians to join the Grand Oaks Heating, Cooling & Indoor Air Quality team.

Click here to fill out an employment inquiry application
See the tax credits available for your home Air Conditioner repair through Grand Oaks Heating & AC by St. Charles MO.
The U.S. Government offers several Federal tax credits to citizens who have had Home Efficiency unit replacements over the last few years. Take a moment to see if you are eligable for any of these tax credits.

Get Service and Help Fight Breast Cancer!


Our primary goal at Grand Oaks Heating & AC is to keep your home comfortable for you and your family.

This site is specifically designed to help you become an informed consumer when it comes to your home's heating and cooling systems. Go ahead, explore. The pull-down menus make it easy. Not only will you learn how these systems work, but also how to shop smart and protect your investment. If you're not sure where to find help with a specific question, try our site's Search Engine. And, don't miss the 'Answers and Information' section on our menu to learn about your home's mechanical systems and simple things you can do to save money and get the most from them.
Grand Oaks AC repair service in St. Charles MO.

Why You Should Trust Us

You'll find we take our job seriously and value highly the trust that is placed in us. To understand why we go so far beyond what others do by investing in the extra training and equipment we believe necessary to protect your home and family properly, take a moment to view our short 30 second video that best explains "why we do it"...and "why it matters."

By doing what it takes to ensure each customer's complete satisfaction, Grand Oaks Heating & AC is welcome in more homes in St. Louis Metro & Rural than any other contractor. We invite you to give us a call.


See what's new in home comfort...


Our Certifications & Associations

  • NCI-National Comfort Institute Inc
  • Carbon Monoxide & Combustion
  • Analysis Air Balance Certified
  • AmerenUE Check Me Plus Program
License# M2684A
Grand Oaks Heating & AC accepts all major credit cards for their Cooling repair service in St. Peters MO.

Our Privacy Policy
Grand Oaks Heating & AC, is a Missouri Heating, Cooling, Plumbing, Air Conditioning, Geothermal Heat Pump, Ductless Mini-Split, and furnace repair, service, replacement and maintenance Company located in St. Charles and Warren Counties. Grand Oaks Heating & AC employs only the best plumbers & technicians for plumbing repairs, air conditioner repairs and, furnace repairs as well as all air conditioner replacements, furnace replacements and boiler replacements St Charles Mo, St Peters, Wentzville Mo, St Louis, St Charles city. We work in St. Louis, Lincoln , Warren and Pike Counties in Missouri. In Illinois we service E. St Louis,Alton, Fairview heights, Granite City. To set-up a repair service estimate or replacement estimate, call (636) 926-2007. Grand Oaks Heating & AC is an authorized factory dealer of many brands and services all furnace, AC, humidifier, filter, thermostat and water heater brands including Carrier, Bryant, Payne, Trane, Lennox, Rheem, Ruud, Amana, Crown, Frigidaire, Gibson, Goodman, Lochinvar, Maytag, Weil McLain, AO Smith, Kohler, American Standard, GeoExcel, General, Aprilaire, Honeywell, White Rodgers, Dynamic, Daikin, Mitsubishi, Fujitsu, and Skuttle.
Check out our air conditioning & heating service on Google!
How Can We Make You Smile?       Call Us Today: (636) 926-2007
We service most Air Conditioning brands and models near St. Charles MO.
82 Clairen Drive
Foristell, MO 63348
(636) 926-2007
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Grand Oaks Heating and Cooling is a member of ACCA.
 
Grand Oaks Heating and Cooling has certified technicians to take care of your Air Conditioning installation near Wentzville MO.
 
Grand Oaks Heating and Cooling is part of RSES.
For Air Conditioning repair in Wentzville MO, visit us on Facebook!
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