Pasadena & the San Gabriel Valley

IT support that picks up.

Managed IT, networking, security, and on-call repair for businesses and homes across the San Gabriel Valley. Responsive support, plain explanations, and a clear invoice at the end of it.

Call or text. Someone answers.

Nathan Armstrong
Armstrong ITS · Pasadena, CA
Based in
Pasadena, CA
Hours
Mon–Fri, 8am–6pm PT
On-site
San Gabriel Valley
Remote
California

What we do

Six services. One number to call.

Most of what comes up falls into one of these. If yours doesn't, call anyway and we'll tell you honestly whether we're the right fit for it.

Managed IT

Ongoing support for small business networks. Updates, monitoring, security, vendor coordination, and a single point of contact for everything technology-related.

Networking & Wi-Fi

Wired and wireless network design, installation and troubleshooting. Coverage that reaches the back office as well as the front desk, set up so it stays secure.

Cybersecurity & backups

Endpoint protection, email filtering and automated backups. Restores get tested, not just scheduled, because a backup nobody has restored from is a guess.

Computer & device repair

Windows, macOS, printers, peripherals. Remote first, on-site when it has to be. You get a diagnosis before you get an invoice.

Help desk & on-call

Responsive support when something breaks, for offices and households alike. Direct access to someone who already knows the setup, without scripted triage.

Residential & home office

Setup, troubleshooting and consulting for the technology in your home: Wi-Fi, smart devices, printers, and working-from-home equipment.

How a job goes

Three steps, no surprises.

You call or text

Remote first, on-site when it has to be. Most things can be looked at without anyone driving anywhere.

A diagnosis before an invoice

You hear what is actually wrong, and what it will take, before anything is billed.

Fixed, and explained

In plain language, so you know what happened and can tell somebody else. Then a clear invoice.

About

Who we work with

Armstrong ITS is an IT practice based in Pasadena, working with around twenty small business clients across the San Gabriel Valley plus a roster of residential customers who'd rather call someone who already knows their setup than file a ticket.

The arrangement is the same regardless of who you are: we show up, explain what's happening in plain language, fix the problem, and send a clear invoice. Then you have a number that works next time.

Business clients
About twenty
Cities on-site
Six
Remote
California

Where we work

Where we go

On-site visits within the San Gabriel Valley. Remote support anywhere in California, or anywhere else on Pacific time.

San Gabriel Mountains Altadena Sierra Madre Pasadena Arcadia San Marino South Pasadena

Get in touch

Tell us what's going on.

For most things a phone call is fastest. The form works too, and everything that comes in gets read.

Or email directly: nathan@armstrongits.com