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Name: Advanced Heating & Air Of Illinois, Inc.
Telephone: (815) 343-7637

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Advanced Heating & Air Of Illinois, Inc.

"Serving Marseilles, Seneca And Ottawa Areas Since 1999"

About Us

Advanced Heating & Air Of Illinois, Inc. is a premier heating and cooling contractor located in Marseilles, IL, serving LaSalle County, Ottawa, and the the surrounding areas. Specializing in both commercial and residential HVAC services, we offer expert installation, maintenance, and repairs for heating and cooling systems. Our skilled technicians are also well-versed in handling boilers, water heaters, and tankless on-demand water heaters to ensure optimal comfort and efficiency for our clients. Trust Advanced Heating & Air Of Illinois, Inc. for all your HVAC needs. Contact us today!

Areas Served

Our Professional Associations

Chamber of Commerce

Our Certifications

Licensed
Insured

What We Offer

Our Specialties include:

Heating Service Calls
Air Conditioning Service Calls
New Commercial Insulation
New Residential Insulation
Commercial AC Equipment
Residential AC Equipment
Services All Makes and Models

Our Services include:

HVAC
Furnace Repair
Furnace Installation
Air Conditioner Repair
Air Conditioner Installation
Boiler Repair
Boiler Installation
Water Heater Repair
Water Heater Installation
Tankless Water Heater Repair
Tankless Water Heater Installation
Park Models

Our Brands include:

Our Products include:

Furnaces
Air Conditioners

Testimonials

On 10/30/2024 Brian Thorson had this to say:
Thank you very much Chris for getting back to me on a Sunday. Came to Seneca and got my furnace back up and running in no time. Couldn't ask for better service. Testimonial written by Brian Thorson on this site.

On 10/30/2024 Tate Bolatto had this to say:
I had both new furnace and a/c installed at my home in Ottawa, Il. Very professional and reasonably priced. Had it done in a day and everything running smooth as expected. It’s an American Standard with a good warranty. I am very satisfied and I would highly recommend Advanced Heating and Air out of LaSalle County/Ottawa, Illinois.

On 6/15/2024 Christine Dunning had this to say:
Thank you so much, Chris! I appreciate you and your work! Chris fit me in to his busy schedule and got my A/C working again quickly! He's local, which is very important to me, and prices are fair. I highly recommend Advanced Heating & Air!

On 5/3/2024 Anonymous had this to say:
Great company to work with. Very dependable, affordable, Chris is great to work with. Testimonial submitted anonymously directly to this site.

On 5/3/2024 MA salon had this to say:
Chris has always come through when I need him. Excellent service!! Testimonial written by MA salon on this site.

Contact Us

Advanced Heating & Air Of Illinois, Inc.
Marseilles, IL 61341
Phone: (815) 343-7637
Email: aha@mtco.com

Payment Types Accepted

Personal Checks, Discover, American Express, Debit Cards, Cash, MasterCard, Visa, Venmo

Our Hours

24 Hour Emergency Service

Holiday Hours May Vary. Please Call For Details.

Monday: Open 24 Hours Call or Text on Nights or Weekends for Emergency Service
Tuesday: Open 24 Hours Call or Text on Nights or Weekends for Emergency Service
Wednesday: Open 24 Hours Call or Text on Nights or Weekends for Emergency Service
Thursday: Open 24 Hours Call or Text on Nights or Weekends for Emergency Service
Friday: Open 24 Hours Call or Text on Nights or Weekends for Emergency Service
Saturday: Open 24 Hours Call or Text on Nights or Weekends for Emergency Service
Sunday: Open 24 Hours Call or Text on Nights or Weekends for Emergency Service