Welcome to Althoff Industries

We have been providing commercial and residential heating, cooling, plumbing, electrical and mechanical services in and around Chicago, including the NW Chicago suburbs, for nearly 60 years. Our President and owner, Tod Althoff, is the second generation of the Althoff family and has been with the company since 1975. In the tradition of his father, he is dedicated to providing high quality professional commercial and residential mechanical contractor services.

We are dedicated to taking your satisfaction to the next level. This means that we ensure our supervisors, technicians, design teams, technical teams and office staff are properly trained and educated, and we are constantly upgrading our expertise to include new technologies and products as they are developed and released. This means that you can expect all of our staff members, supervisors, engineers and technicians to listen to your questions, comments and concerns with an open ear and to answer all of your home and commercial service questions to the best of our ability.  This is all part of our dedication to customer satisfaction. We are not happy until you are completely satisfied with our services.

Benefits and Advantages of Choosing Us as Your Mechanical Contractor:
• 24 Hour Emergency Services
• Licensed and Bonded Mechanical Contractor
• Custom Plumbing, Electrical, HVAC and Mechanical Solutions
• Dedicated Sales and Support Departments
• Dedication to Safety and Risk Management
• Free Estimates on Equipment Replacements
• Latest Technology and Innovation
• Outstanding Dedication to Professionalism and Courtesy
• Professionally Trained Technicians
• Quality Brands and Products You Can Trust

 When you choose us to handle your HVAC, plumbing, electrical and mechanical needs, you are not just choosing another residential mechanical contractor. You are choosing a partner that will work with you to maximize the comfort and efficiency of your home or business.




Special offers

Althoff Industries
$50 Off
Call Today!
an Aprilaire Humidifier
Expires: Dec 31, 2017
Althoff Industries
$25 Off
Call Today!
Fall System Tuneup
Expires: Dec 31, 2017


Monday Non-stop
Tuesday Non-stop
Wednesday Non-stop
Thursday Non-stop
Friday Non-stop
Saturday Non-stop
Sunday Non-stop

Althoff Industries

8001 S. Route 31
Crystal Lake, Illinois 60014
Phone: 815-455-7000
View our website

Your contact submission was successfully sent!