We Bring Comfort and Security
  • Complete HVAC Solutions
  • Nationwide Fire Suppression
  • Professional Electrical Services
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Proudly Providing HVAC Services
To Northern and Central Illinois
Since 1992!
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We are there
when you need us most
with 24/7 Emergency Service!

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(630) 595-9563

Every State, Every Need
Your Fire Suppression
Solution
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We Bring Comfort and Security
  • Complete HVAC Solutions
  • Nationwide Fire Suppression
  • Professional Electrical Services
Request Service

About
Dependable Building Services

Founded in 1992, Dependable Building Services is a Commercial Contractor that Performs HVAC, Electrical, and Nationwide Fire suppression.

Our focus is on commercial, retail, industrial, and telecom industries. Our footprint covers all of Illinois & Wisconsin along with Northern Indiana, with our Fire Suppression Services offered nationwide. Dependable Building Services began as a two-person operation and has steadily grown over the last 30+ years to more than 30 technicians.

Call Us Now

(630) 595-9563

Maintenance Plan

We provide preventive maintenance on your existing equipment and new installations. Preventive maintenance is often a first concern for our clients. Just like you get oil changes for your car, your HVAC unit (which often is as expensive as a car) needs to have check-ups. Your units will last longer, breakdown less frequently, and your utility costs will be lower.

Serving Businesses Throughout Northern & Central Illinois, and Southern Wisconsin

Featured Manufacturers

We Service All Makes And Models

Customer Reviews

Marie J.

Excellent and professional work! The technician was personable and tidy. Great job! A+ communication and customer service. I highly recommend it!

Sonya A.

We had a great experience working with Dependable to have our building generators installed. The specific generators that we wanted installed were very hard to ...

Paula B

As the name says, they are very dependable. The employees are knowledgeable and definitely know what they are doing.

Adamarie T

Great place to work, office staff & technicians are all helpful & knowledgeable. I highly recommend this business as a place of employment.

Community Involvement

DBS and it's owner Janette Tomaselli has been Donating and volunteering at The Children's Advocacy Center located in Hoffman Estates, IL. Since 2015.

Empowering Voices. Inspiring Hope.
The Children’s Advocacy Center of North and Northwest Cook County (CAC) is a child-focused, trauma-informed nonprofit bringing help,hope and healing to young survivors of abuse or violence and their non-offending family members.