Attention Chantilly Small Business Owners:

Are You Ready To Put An End To Expensive, Frustrating Computer Problems Finally and Forever?
If so, call us today at 703-968-2600 and we’ll show you how we can make your computer problems go away finally and forever!


Call Us Today At 703-968-2600

Why Choose Us?

We know there are lots of IT providers in the Chantilly area. But we want to be your IT choice. We are so sure that you will be pleased with our cutting-edge technology services that we have a “Thrilled Today Or You Don’t Pay Guarantee.” That’s how positive we are that we are the right choice for your small to medium business.

We can’t wait to introduce you to our support center, staffed round-the-clock by live, friendly people right here in Chantilly. Our fully-trained staff rarely sees an IT issue they can’t fix and we have a strict policy against jargon and “geek speak” - we pride ourselves on using common everyday language to discuss your IT woes.

Michelle Sherman
President, Computer Services Unlimited

Server Support - Chantilly, Dulles, Fairfax

Server Support

We’re here 24/7 working to effectively manage, troubleshoot and protect your server and important data

Network Security - Chantilly, Dulles, Fairfax

Network Security

Our state-of-the-art solutions gives you assurance that your infrastructure is safe from hacking and misuse

VoIP Phone Solutions - Chantilly, Dulles, Fairfax

VOIP Phone Solutions

Rid yourself of expensive phone lines with a VOIP system that handles all your calling needs

Chantilly's One Stop Shop For All Your Technology Needs

  • Desktop Support
  • Server Support
  • Network Security
  • VoIP/Phone Solutions
  • Data Backup Solutions
  • Cloud Computing
  • Disaster Recovery Planning
  • Email/Spam Protection
  • Flat Fee I.T. Service

See what other Chantilly business owners are saying about us...

Frees up significant management time...

Katie Newbold
I find the cost of GridWatch to be very reasonable when everything is factored in such as the security patches, updates, and support that my staff can directly call and quickly get help. It frees up a significant amount of management time that I used to use chasing down issues and trying to help people myself. It's also comprehensive, I don't have to worry about whether our server or any of our workstations is up to date or that I have to get involved if there is a network issue, which is a huge deal to us.

LVT Practice Manager
Chesapeake Veterinary Cardiology Associates

They take the time to listen to me...

Pat Richter
I have been working with Computer Services Unlimited (CSU) since 1993. Chuck and his team have been very helpful in providing support for our network related issues. They take care of our server, workstations, and printers. They take the time to listen to my concerns and then advise me on the best solutions for our company.

Residential Preferred Properties

The GridWatch program is fantastic...

Almost 2 years ago Inova Fairfax Hospital Gift Shops and Treasure Trove thrift/consignment stores signed a contract for the CSU GridWatch Program. Our network holds a lot of critical data that would be devastating to us if we lost it. The GridWatch program is fantastic! It alerts CSU to any potential problems on our network so that CSU can proactively take care of the situation before it becomes a huge problem.

Senior Retail Manager
Inova Fairfax Hospital

I highly recommend them to anyone...

Truman DeHaemers
I would like to share my experiences with Computer Services Unlimited (CSU) in Chantilly, Virginia. They have performed services on my various personal computers for at least the last ten years and I have been extremely satisfied with their professionalism and services. I have been so impressed with them that they have built my latest desktop and laptop computers. I highly recommend them to anyone who has any computer problems.

Retired Audit Manager and Operations Staff Auditor
Air Force Audit Agency

You bet we will be going back to them...

Robin Clements
They did it again. CSU duplicated and delivered 800 CD’s, under budget and earlier than expected. We asked them to duplicate 800 CD’s in three days, they did it in two! This meant that we could deliver our training manuals to the troops earlier than expected. They beat the competition on this project by more than $1,000.00. You can bet we will be going back to them with our next project.


What would we do without you...

CSU what would we do without you guys? My customers are sure pleased with the service warranty work you do for us.

EB Medical

They are fantastic people to work with...

Barbara Palmquist
We are so fortunate to have found CSU. We can call them from anywhere we are travelling and they respond immediately. I really like that they have live people answer the phones that can actually answer my questions! During a recent trip, my laptop was crushed. I was devastated and so worried about everything on it. I called CSU, we sent the laptop over night to them, they were able to recover my data, build me a new laptop and then sent it back to me over night. All my data, all my pictures, everything was there! They are fantastic people to work with. You can see my crushed laptop on their Facebook page!

Our computer system plays an important role...

In August 2011, we signed up with Computer Services Unlimited (CSU) Grid Watch service because we were having on-going server issues, which caused our computers to run slower than normal or be down during our business hours. As a paperless practice using Avimark, our computer system plays an important role in the way we run the veterinary hospital and having it down creates a stressful environment for our team of Doctors and staff.

Aldie Veterinary Hospital

Not ready to call us just yet?

Computer Support - Chantilly, Dulles, Fairfax

Even if you’re not quite ready to pick up the phone and call us just yet, we’d still like to help you make your business more efficient and more secure in the meantime. That’s why we’ve written a comprehensive and jargon-free guide called What Every Business Owner Must Know About Protecting And Preserving Their Company’s Critical Data And Computer Systems.

This free book will tell you why small businesses are particularly vulnerable to the disasters that can lead to data loss. It will also tell you the 6 things you need to do as an absolute minimum to protect your company from these disasters. We’re also offering you a FREE security audit which will determine just how adequate your current data and network protection is. Can you afford not to download our report today? It’s absolutely FREE and we promise we won’t bother you with follow-up sales calls either.

Order Your FREE Copy Today!

Network Services - Chantilly, Dulles, Fairfax

About Computer Services Unlimited

Since 1991, CSU has been on a mission to help small businesses like yours get state-of-the-art IT support. We are dedicated to getting our clients the service and products that help them achieve greater success.

Computer Services Unlimited, Inc. is a woman-owned, small business located in Chantilly, Virginia. Customer service is our top priority, which means that everything from system components to the employees that answer the phones are top quality. We work with our customers every step of the way to ensure that the products provided and the services received meet and exceed the customer’s expectations.

Technology services from CSU are designed, created and implemented with your unique business needs in mind, so you know you’ll see a return on your IT investments today and in the future.

We’re proud to partner with the best in the industry.