Long Island IT Support
Help desk support that just works, from a local team in Williston Park.
Since 2003, TCI Technologies has kept businesses across Nassau and Suffolk counties running. When something breaks, your team reaches a real person who fixes it fast, usually remotely, and our local technicians are minutes away when you need hands-on help. Add cybersecurity, Microsoft 365 and IT strategy, and you get one trusted partner for all your technology.
Your team gets fast, friendly help from people who know your business.
Call TCI and a real person answers right away. No phone tree and no hold times.
Most issues are solved remotely while you wait. Unlimited remote support is included in our Quantum Level II and III plans.
When hands-on help is needed, our technicians come to your office anywhere on Long Island, from our Williston Park office.
Monday–Friday, 7am–7pm, with after-hours support for Quantum clients and 24×7 critical outage response on Level III.
Response Times
When something goes wrong, speed matters. Many IT providers quote response times of 2–4 hours. At TCI, a real person answers your call right away.
| When you… | What happens |
|---|---|
| Call our help desk | A real person answers right away. No phone tree, no hold times. |
| Have a critical issue | It’s escalated immediately to senior technicians working in the same office. |
| Email or submit a request | It’s logged, prioritized and assigned in our ticketing system, so nothing falls through the cracks. |
Our entire support team works together under one roof, so escalations happen in minutes, not days, and nothing gets lost between offices or outsourced call centers.
Also serving New York City and the Tri-State area. We’re also on site weekly in New Jersey and Connecticut, and support clients across the U.S., Europe, India and South America through our multi-location and international IT support.
Predictable per-user pricing with our Quantum Managed IT Plans.
Help desk and on-site support from a local team.
Layered protection, monitoring and cybersecurity services.
Microsoft 365 migrations, Teams and secure cloud access.
Extra support for your in-house IT team with co-managed IT.
Copilot readiness and AI services built on security.
Rated 4.9★ by 84 businesses on Google.
“The company I work for uses TCI to manage our computers and technical needs. Everyone there is always very helpful and patient especially with assistance on the remote connections. Kenita always solves any issues I have without any follow up and I highly recommend her and her team.”
Lindsay W.
Google review
“Great experience working with this IT company! Their team was professional, responsive, and resolved our issues quickly and efficiently. The process was smooth from start to finish, and their customer service was excellent. Highly recommend for anyone looking for reliable IT support.”
Keith W.
Google review
“Very friendly and knowledgeable of my questions. Patience of a saint. TCI and its team have proven to be a valuable investment for our organization. I ask questions and they are addressed in a timely manner.”
Elsa R.
Google review
Visit or Call Us
Address:
436 Willis Avenue
Williston Park, NY 11596
Phone: (516) 484-5151
Hours: Monday–Friday, 7am–7pm
After-hours support is available to clients on Quantum Managed IT Plans.
Serving:
Nassau County and Suffolk County, including Williston Park, Mineola, Garden City, Great Neck, Port Washington, Westbury, Hicksville, Huntington, Melville, Hauppauge and communities across Long Island.
Yes. Most issues are solved remotely, but our technicians travel to offices throughout Nassau and Suffolk counties when hands-on help is needed.
Faster than most. Many IT providers quote 2–4 hour response times, but when you call TCI, a real person answers right away, with no hold times. Critical issues are escalated immediately to senior technicians in the same office.
Yes. Our co-managed IT services support your in-house staff with help desk capacity, tools and expertise.
Most businesses choose a per-user monthly plan. See what managed IT costs or get a free assessment and quote.
Talk to a local team that answers the phone, fixes problems fast and keeps your business secure.