Attention Business Owners Searching for Dependable IT Support:

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

If so, schedule a quick, 10-minute discovery call and let us show you what fast, friendly and highly-responsive outsourced IT services should be for your small to medium business:

Book a Consult

Managed Services

You can rest easy when you put your IT support needs in our hands. Never worry about extensive downtime again with our 24/7 monitoring services.

Cloud Computing

Cloud services give you the power to collaborate using the Internet and intranet in your office to make doing business more efficient.

Data Backup and Recovery

We use a unique system that backs up all of your domain and server information and stores it off site so you’ll always be able to restore your data quickly.

VoIP Solutions

We work with both hosted and on-premise VoIP solutions giving you the best solution to fit your business' needs.

IT Consulting

We provide Virtual CIO services that can simplify using your technology and benefit from IT Outsourcing.

Virtualization Services

Our virtualization experts can show you how to simplify your IT infrastructure, lower costs and improve your system reliability.

Why Choose Us?

Quick response
Emergency response time is one hour or less guaranteed. A live person will answer your call, or you can enter a service ticket yourself online with our streamlined service ticket system. We can log in to your PC or server remotely and resolve many issues immediately without the wait for a technician to travel to your location.
Reputable
Computer Maintenance Service has been around since 1990, a respected leader in the community and the industry. Our proudest accomplishment is the large number of long term clients who year after year put their trust in us.
Experienced
We hire only seasoned, professional technicians with at least 5-10 years experience and usually many more. We provide our technicians with continuing education opportunities on a regular basis to allow them to stay current with the latest technology. We won’t be sending out warm bodies to train on your dime!
Business savvy
We design, evaluate and justify technology solutions from a thorough understanding of the business benefit for your company.
One Stop Shop
We handle all aspects of your IT infrastructure including hardware and software management, vendor relationships for your internet connectivity, website management, and maintenance renewals, and any other related technology needs. We focus on your IT so you can focus on your business.

Proactive
Our service philosophy is proactive, not reactive. With state-of- the-art network monitoring and management, we manage your network 24/7 to identify issues and address them BEFORE they become problems, rather than putting out fires.
Comprehensive project management
Our extensive experience managing all types of complex projects means we will handle every detail and coordinate all vendors so you can rest assured that your project will be completed on time and on budget.
No geek speak
You deserve to have your questions answered in plain English. Our technicians will clearly explain what is happening so you understand.
100% Satisfaction Guarantee
We want you to be completely satisfied with our services. We will do whatever it takes to make you happy. No hassles, no problems.

Our Partners

About CMS

Computer Maintenance Service is a comprehensive small business IT support services and consulting firm, specializing in all areas of computing, networking, and printing in Chicago and surrounding areas. We help businesses increase productivity, reduce costs, and enhance employee and customer experiences.

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See what our clients are saying about us...

Our Rating

EXCELLENT

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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 our company.

Kenneth M., Owner Manufacturing

I'd like to thank you once again for all the help and support you've given us over the years. I believe we've been with you since the late 90s and I don't see us changing anytime in the near future. Since our initial server, you've installed 2 replacements and both times the transition went seamlessly. You and your staff are always there when any issue arises and you help solve the problem immediately so we don't lose data or man hours. Your ability to access our network and workstations remotely is wonderful! In addition, our nevv installations (about 30 pc's so far) have been problem free; our email rarely has any issues; and your follow up in tracking our antivirus programs and scans are priceless!

Thanks again for all you do (and how well you do it!!). We're looking forward to working with you for years to come!

Donna O., (ret.) Property Management