About Us

Family Operated Since 1961

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.

Our 100 Percent Satisfaction Guarantee

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. If we do not readily know an answer, we will look it up and get back to you. 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
Our Services

Our residential and commercial mechanical contractor services are designed to help you maximize your energy efficiency while lowering your bills and keeping the occupants of your building or home happy, healthy and comfortable. To help you achieve those goals, we offer complete plumbing installation and repair, full-service electrical, including lighting upgrades, mechanical systems installation and repair and commercial and residential heating and cooling upgrades, installation and repairs, including custom duct work.

DIY Troubleshooting

Our dedication to customer service and satisfaction goes beyond what our residential and commercial mechanical technicians can do for you and extends into how we can help you keep your employees, visitors and residents comfortable. If you are having trouble with the gas heating system or cooling system in your Chicago building, please feel free to check out our gas heating system and cooling system troubleshooting guides.

Service Area

We are proud to serve the entirety of Chicago and the greater Chicago area, including the entire northwest suburb of Chicago and McHenry County. If you need any of our heating, cooling, plumbing or mechanical system services, do not hesitate to call us.  We would be happy to speak to you about your next project.

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.

Northwest Herald 2013 Readers Choice Award

Winner of: The Northwest Herald 2013 Readers Choice Award for The Best Heating and Air Conditioning and One of the Best in Plumbing Services.

2013 Carrier Presidentʼs Award

Winner of: The 2013 Carrier Presidentʼs Award for dealers who exemplify leadership and management, customer satisfaction, expertise, business growth and operational excellence.