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Name: Advanced Heating & Air of Ottawa, Inc
Telephone: (815) 343-7637

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Advanced Heating & Air of Ottawa, 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 1/25/2025 Laurie Bierman had this to say:
Chris has serviced our boiler over the years and recently replaced our water heater. He does an excellent job! He explains things clearly, is always very thorough and leaves the area clean, and is reasonable in price.. Glad we found Advanced Heating and Air!

On 1/12/2025 Ben jamin had this to say:
Definitely recommended.

On 1/10/2025 Dawn Koetz had this to say:
My furnace was not blowing out hot air. I can always count on Chris to get here as soon as possible! Fast and efficient!

On 1/4/2025 Grant Dejewski had this to say:
Always a great experience using Chris for HVAC needs in Ottawa Illinois I have rental Units and have used him multiple times for repair work and full furnace installs Fast to respond and the his fees are more then reasonable. Best in town I’ve found

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.

Contact Us

Advanced Heating & Air of Ottawa, Inc
Ottawa, IL 61350
Phone: (815) 343-7637
Email: aha@mtco.com

Where To Find Us

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

News

Is your Ottawa business in need of a heating and cooling boost? Keep your commercial space comfortable all year round with Advanced Heating & Air of Ottawa, Inc. Specializing in everything from commercial AC equipment to new insulation, we've got the tools to keep your business running smoothly. Whether you're gym-goers in need of a quick cooldown or keeping the office cozy, our four powerful furnaces are up to the task. Get in touch today, and let's chat about how we can enhance your space's comfort! Drop any questions in the comments!