We have IT covered

Serving Northwest Indiana and Chicagoland for over 25 years

To serve our clients in accordance with “The Golden Rule”. To provide responsive, reliable service in a trustworthy and professional manner. To demonstrate in word and deed, our care for the computer systems that we support, but more importantly, the people who depend upon them and us.

Personal and Prompt attention

Fully integrated orchestration

Customized to your IT infrastructure

IT Support delivered directly to you

ON-SITE provides in-person and remote support for your entire IT infrastructure. From Valparaiso to Chesterton to Merrillville and Crown Point and everywhere in-between, we'll bring the help desk to you with personal and professional attention.

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ON-SITE offers a wide range of customized IT services designed to meet all the challenges of technology in today's business world.

On-site and remote technicians

If you need a remote service or an on-site technician, no job is too big or too small for us to solve

Web and E-mail hosting

Choose from an array of different e-mail and website hosting services or have your entire network backed up remotely to the cloud

Hardware and Software sales

From computers to tablets and software updates, ON-SITE will ensure you get the best price and prompt delivery

Networking and IT Infrastructure

From servicing your network connections to wiring your brand new offices, we can provide support your IT infrastructure

Web Development

Customized web site, intranet, e-commerce, and landing page solutions to meet your needs and budget

Data Security

Whether you just want an audit of your IT systems or testing your security against penetrartion tests of all kinds

Stay current on all the trends, announcements, and developments in the technology world

'Tech Talk'

Featured Products


Since our founding in 1992, we have provided both businesses and individuals with trustworthy, responsive,and quality support and service.

For the last 18 plus years, On-Site hassupported all aspects of our IT needs at Vanis. From Phones, Hardware, Softwareand Connections, On-Site has been there, keeping all three of our locationsrunning, so we can help 6,000 clients per month Look and Feel Beautiful.

Chris Valavanis

Owner, Vanis Salon & Day Spas

On-Site folks are very responsive to our IT needs and usually responding the same day. They also provide timely suggestions to anticipate our needs and on new technologies.

Karl Cender

President & CEO, Cender and Company

McDevitt Mediation Center has been working with ON-SITE Computing for many years regarding all of their computer needs and issues. ON-SITE is a hands on company that is very reliable when we have a problem.  They give their prompt attention to fixing any issues we may experience and solve the issue timely.  Their employees are friendly and very knowledgeable about our computer needs.

Chris Cooper

Office Administrator, McDevitt Mediation

Contact Us

Hours of Operation

Monday-Friday 8am-5pm Weekends by appt.


580 N. Indiana Ave. Crown Point, IN 46307