Attention Business Owners Searching for Dependable IT Support:

Frustrated By Constant Computer Problems And Lack Of Response From Your Current IT Company?

If so, give us a call and let us show you what fast, friendly and highly-responsive outsourced IT services should be for your small to medium business:

Call Us Today At 708-478-2530

3 Reasons to Trust Computer Maintenance Service
to Support Your Computer Network



CMS prides itself on only employing the most professional, knowledgeable, and courteous people to serve our clients. Our technicians are continually vendor trained on products we sell and service. If you need a senior network technician, printer serviced, or a web design expert, CMS has the resources to solve your problems NOW.

We do not employ want-to-be technicians. Our technicians are certified and continually furthering their education. They not only have the Certifications they are well trained and have many years of experience. CMS prides itself on the highly trained and educated employees we bring on to our IT Staff. Each technician is versed with all our clients’ networks and is involved with networks being designed, implemented, managed or simply doing the audits and making recommendations for future needs or growth. We do not assign one technician per customer; all of our technicians are able to maintain all our clients’ networks.



At CMS we have over 75+ years combined experience in the IT world. For almost 30 years CMS has been diagnosing and repairing computer systems. In that time, our team of certified technicians has seen and/or worked with products from almost every major hardware and software manufacturer. Our vast experience and proven methods insure we will get to the root of your problem quickly without wasting your time or money.

There are many things you need to consider when choosing a computer support company. Experience, responsiveness, and product alliances, are all points to look at when trusting your businesses computer operations to an outside source. CMS has certified technicians on staff ready to diagnose, make recommendations, and repair your network quickly. Once we get your organization operating smoothly we have a number of cutting edge services available to monitor and protect your systems from the growing number of everyday threats.



Since 1990, Computer Maintenance Service, Inc. has been providing Chicago and the surrounding areas with comprehensive on-site and depot center computing, printing, and networking support. We presently service a large customer base comprised of almost every business and public sector, as well as thousands of residential computer users.

In 2003, we expanded and moved our operations to a new state of the art facility in Mokena, Illinois. Since that time we have grown our service offerings to include digital video security systems, remote network monitoring, remote managed services, remote backup services, analog and IP based phone systems, e-mail & web hosting services, and more.

Whether you need daily support on your network or an upgrade, CMS can provide you with the prompt, professional, and affordable support that is a rarity anymore in the service industry.

Our Services

Equipment Repair

We'll come to you and solve all of your IT issues.

Data Backup & Recovery

Prevent the unexpected from ruining your company.

Cloud Computing

Our solutions are fully scalable and available for a flat-rate fee.

Managed Services

We’ll manage all of your IT services for a flat-rate fee.


Computer Maintenance Service: trusted computer support for businesses throughout Chicago and surrounding areas – Let us help you today!

Maybe you’re concerned with the current rising costs of your IT services, or maybe you are just running short on time because of your expanding business and need to hand over the reins of some services to someone else. Whatever your reason, we can help you with quality IT services today.

Your business can save money and time today with Computer Maintenance Service’s managed services, network solutions, IT support and more.


See what other business owners are saying about us…

As the owner of a company the last thing I want to do is deal with a malfunctioning computer network. Not only does Computer Maintenance Service, Inc. allow me peace of mind on my network but has also designed and installed a state of the art camera surveillance system along with a new phone system. When I have a need or a concern I call CMS. With the implementation of the diverse applications, state of the art equipment I can view my company camera systems on my cell phone. If needed, I can work anywhere there is an internet connection. Not only do they fully support the hardware end they are knowledgeable and support software applications as well. I have worked with all the staff at CMS from the receptionist to the owner and they have always done a great job for KWM Gutterman.

Kenneth W. Minor, Sr., Owner KWM Gutterman, Joliet, Illinois

As the Operations Manager/Owner of Total Flooring, Inc., I do not have the time for our computer network to malfunction. I have been working with Computer Maintenance Service, Inc. for over five years now. Requesting services is convenient as I get to speak to a live person as opposed to a recorded greeting and voice mail. My issues are handled immediately. Their professional and prompt service relieves me of any headaches caused by downtime. In using CMS as my personal IT Department I do not have to worry about my network.

Mark Johnson, Owner Total Flooring, Inc.

I have been using CMS for my dental practice since 2005. After having been burned by dishonest competitors, I finally feel I have found a company who takes care of all my IT needs with integrity. This in turn has not only saved me money over the long haul, but has helped me to focus on my practice knowing that all my records are safely protected. Kurt and his team are on top of all the privacy needs that come with HIPPA challenges. Their remote services allow them to immediately help me when necessary, as well as monitoring all my hardware. Even now, being across the country, they are able to take care of all my needs and are just a phone call away. I highly recommend CMS and cannot thank them enough for all that they have done to help me.

Dr. Victoria Rinando 6th Sense Dental, Naples, FL

Not Ready To Call Us Just Yet?

If so, we would at least like to send you a copy of our recently published report, Lower Your IT Costs – An Overlooked Way For Small Business Owners To Lower Their IT Costs.

This report will outline in plain, non-technical English common mistakes that many small business owners make with their computer network that cost them thousands in lost sales, productivity, and computer repair bills, as well as providing an easy, proven way to reduce or completely eliminate the financial expense and frustration of these oversights.

Simply fill out the form here and download your copy today!

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