What are the opening hours?

Monday 8am - 5pm Tuesday 8am - 5pm Wednesday 8am - 5pm Thursday 8am - 5pm Friday 8am - 5pm Saturday 12am - 12am Sunday 12am - 12am

Advanced Heating & Air of Ottawa, Inc

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United States
Ottawa, IL
Advanced Heating & Air of Ottawa, Inc

Advanced Heating & Air Of Illinois, Inc. is a premier heating and cooling contractor in Marseilles, IL. Trust Advanced Heating & Air Of Illinois, Inc.

Specializing in both commercial and residential HVAC services, we offer expert installation, maintenance, and repairs for heating and cooling systems. Serving Marseilles, Seneca And Ottawa Areas Since 1999

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. Our skilled techni

cians are also well-versed in handling boilers, water heaters, and tankless on-demand water heaters to ensure optimal comfort and efficiency for our clients. for all your HVAC needs. Contact us today! Services:
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

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

Products:
Furnaces
Air Conditioners

Brands:
American Standard
Trane
Rheem

Certifications:
Licensed
Insured

Association:
Chamber of Commerce

03/02/2026

As a locally and family‑owned contractor, Advanced Heating & Air of Illinois has proudly served Ottawa, Seneca, and nearby communities with reliable HVAC services, preventative maintenance, and top‑quality workmanship for over a decade.

02/01/2026

Whether your furnace is failing or your boiler needs attention, our team specializes in installation, maintenance, and repair of all major systems—including tankless water heaters. Keep your home comfortable and energy‑efficient with expert care from a locally operated HVAC company.

01/12/2026

Need dependable HVAC service? Advanced Heating & Air Of Illinois, Inc. provides trusted heating and cooling solutions for homes and businesses across Marseilles, Ottawa, and surrounding areas. From furnaces to central air systems, our experienced technicians deliver fast, professional results you can count on.

10/16/2025

Hey Ottawa! 🌬️ Is your restaurant in need of a breath of fresh air? Our top-notch spiral ductwork offers the perfect air distribution solution for your space, ensuring efficient airflow and a comfortable dining environment for your customers. At Advanced Heating & Air of Ottawa, Inc, we specialize in Heating and Cooling solutions tailored specifically for you. From Air Conditioning Repair to expert HVAC services, we've got your back! 🍽️ Ready to upgrade? Call us today for a consultation and let us elevate your restaurant's atmosphere. 🔧💨

09/16/2025

Make your barndominium a true home with reliable heating and cooling solutions from Advanced Heating & Air of Ottawa! 🏡❄️ Whether you're installing a new air conditioner or repairing a boiler, our team ensures your space stays perfectly comfy. Don't sweat the heat or shiver in the cold—drop your questions in the comments, and we’ll keep your barndo blissful year-round! 🚀

08/16/2025

🍷 Exciting news from Ottawa! 🎉 We've just wrapped up some amazing spiral ductwork for a beautiful new winery opening soon! At Advanced Heating & Air of Ottawa, Inc, we're all about delivering top-notch solutions for your heating and cooling needs. Whether it's for your business or home, we've got you covered with our expert HVAC services. From air conditioners to furnaces, our experienced team is here to ensure your comfort all year long. 💨🔧 Need an upgrade? Let's chat! 📞 Call us today and let's bring your climate control dreams to life.

07/16/2025

🍃 Adventure meets comfort at Starved Rock State Park! 🏕️ Experience a cozy getaway in treehouses and rentals equipped with our mini ductless split systems, expertly installed by Advanced Heating & Air of Ottawa, Inc. Keep cool in summer and toasty in winter with our top-notch heating and cooling solutions. ❄️🔥 Got questions? Drop them in the comments! 💬

06/16/2025

Switching to a tankless water heater? It's time to embrace efficiency with Advanced Heating & Air Of Illinois, Inc.! Our tankless water heater installation and repair services will ensure you never run out of hot water again. 🚿♨️ Ideal for both residential and commercial settings, our experts are ready to assist you with the transition. Curious about the benefits? Drop your questions in the comments below!

05/16/2025

🌡️ Need a reliable solution for your commercial HVAC needs in the Ottawa area? Advanced Heating & Air of Ottawa, Inc. has got you covered! Our expert team handles everything from Air Conditioning Service Calls to New Commercial Insulation. Keep your business comfy year-round with our top-notch service. Curious about how we can help you stay cool? Drop your questions in the comments! 👇

04/16/2025

It's all about comfort! Did you know Advanced Heating & Air Of Illinois, Inc. specializes in improving indoor air quality with our Residential AC Equipment and New Residential Insulation? Say goodbye to drafts and hello to energy efficiency! 🌬️✨ Whether it's summer or winter, our air conditioning services and top-of-the-line insulation will keep you comfortable all year round. Ready to upgrade? Contact us today and breathe easier at home.

03/31/2025

🏢 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!

Address

Ottawa, IL
61350

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 5pm
Saturday	12am - 12am
Sunday	12am - 12am

Telephone

+18153437637

Website

https://advancedheatingandairconditioningil.com/

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