We are a locally owned firm based in Bangor and Winthrop, with a third office serving clients in the Raleigh, North Carolina area. For more than three decades we have helped small and midsize organizations keep networks, servers, phones, and cloud tools working so the rest of the company can stay on the work that pays the bills.

That is still the job. Technology changed. The expectation did not: when something breaks, a person who knows your environment picks up the phone.

Why we exist

Most of the companies we work with are too large to treat IT as a side job and too small to staff a full internal department. They need monitoring at 2 a.m., a phone system their staff can use from the office or the road, backups that actually restore, and someone local who will drive on site when remote support is not enough.

We built Sierra around that gap. We take responsibility for the stack — devices, servers, network, voice, cloud, and security — on a predictable monthly plan. Labor is included. You are not buying hours. You are buying a working environment and a team that already knows your building.

What we stand behind

  • S.-based support, 24 hours a day. Overnight issues are handled by people in this country, not a follow-the-sun queue you will never speak to twice.
  • One-hour response guarantee. A computer or network issue is acknowledged within sixty minutes. That is a stated promise, not a slogan.
  • Flat-rate monthly pricing. Monitoring, maintenance, and labor sit on one invoice so a bad week does not become a surprise bill.
  • Uptime as a business metric. Our clients run at 99.99% uptime because we treat downtime as lost revenue, not a ticket category.
  • On-site when remote is not enough. Bangor, Central Maine, and the communities we already serve — Augusta, Lewiston-Auburn, Brunswick, Portland — are drive time, not a dispatch network.

How we work

Every engagement starts with an assessment of what you actually run: phones, servers, workstations, cloud tenants, backups, and the risks that sit on top of them. We do not drop a packaged “stack” on a business that does not need it.

From there we monitor and maintain the environment continuously. The point of managed service is to catch disk failures, failed backups, and suspicious logins before the office notices. When something does get through, you call the same people who built the documentation, not a tier-1 script.

Voice is part of the same picture. We still design, install, and support business telephone systems — hosted VoIP and modern unified communications — because a company cannot run if customers cannot reach it. IT support that ignores the phones is only half the job.

Who we serve

We work with small and midsize organizations that need a stable, secure environment and a partner who will still be here next year. That includes professional offices, manufacturers, healthcare and hospital departments, school units, and multi-site operators across Greater Bangor, the Kennebec Valley, Lewiston-Auburn, Midcoast, Greater Portland, and the Raleigh area.

Long-term clients include organizations such as Canteen Service Co., Arnold Memorial Hospital, and MSAD #63. Many of those relationships started with a phone system and grew into primary IT support. That is the usual path: we earn the rest of the stack after the first system works.

Where to find us

  • Bangor headquarters — One Cumberland Place, Suite 314, Bangor, ME 04401 — (207) 947-4199
  • Central Maine — 162 Route 133, Winthrop, ME 04364 — (207) 990-3333
  • Raleigh area — PO Box 1370, Angier, NC 27501 — (919) 874-5800

Email: sales@sierracommunications.com. Live support is available 24/7 at (207) 947-4199.

Frequently Asked Questions

How long has Sierra Communications been in business?

Since 1991. We are a locally owned Maine company with more than 35 years in telephone systems and IT support.

Do you only work in Bangor?

No. We support businesses throughout Bangor, Augusta, Lewiston-Auburn, Brunswick, Portland, and surrounding communities, plus clients served from our Raleigh-area office.

Do you replace an internal IT person or work with one?

Either. Many clients use us as their full IT department. Others keep an internal lead and use us for monitoring, after-hours coverage, voice, and projects.

What does the one-hour response guarantee cover?

A covered workstation, server, or network issue is acknowledged within sixty minutes. Resolution time depends on the problem. The guarantee is that a qualified technician is on it, not that every fix is complete in an hour.