Home
Building Technologies
Controls integration and legacy migration

Controls Integration and Legacy System Migration

Northland Building Technologies connects building equipment and energy management systems from different manufacturers so they work as one, and migrates legacy controls to open protocols when they reach end of life. We deliver integrations as plug-and-play appliances and gateways rather than proprietary integration hardware, which cuts project cost and time, and we work with your IT department so devices come onto the network securely.

Talk to a controls specialist Tell us what systems you have and what you want to see in one place. Emergencies are still answered 24/7.

763-544-5100

What this service covers

Honeywell: C-Bus, Excel 5000, Symmetre, LCBS, LonSpec, CARE, WEBs, EBI
Johnson Controls: N2 Master, N2 Slave, N2 Open
Trane, Alerton, Allen Bradley, Andover AC256, Trend, Schneider Electric, TAC
American Automatrix PHP and PUP, Robertshaw Microsmart and DMS, Staefa Smart 2
Modbus and Modbus 250, LonMark, Pneumercator, Veeder Root and Veeder Root Enterprise
Conversion of building protocols (BACnet, LON, OPC, Modbus) to IT standards (SNMP, SOAP, XML, SQL)

When to call

A controls manufacturer that has discontinued your system or its parts
Two or more systems in one building that cannot share schedules or alarms
An IT security review that flagged the building network
A new energy or metering platform that needs data from old equipment

How a controls project works

Site survey. We walk the building, inventory the existing controls, meters and equipment, and learn what you need to see and control.
Design and proposal. An open-protocol design that reuses what is worth keeping, with a written scope, schedule and price.
Installation and integration. Controllers, gateways and the web console are installed and commissioned with your IT department involved from the start.
Training and support. Your operators are trained to run and maintain as much of the system as they choose, with our 24/7 response center behind them.

Frequently asked questions

Do we lose our existing sensors and actuators in a migration?

Field devices that are in good condition are normally kept. The migration replaces the controllers and supervisory layer with open-protocol equipment and reconnects the existing points, which is a large part of why migration costs less than a full replacement.

How do you handle IT security?

Legacy controls were rarely designed for a corporate network. We convert them to standards-based systems and coordinate with your IT department on segmentation, addressing and access before anything goes online.

Can you integrate systems you have never seen before?

The list above is what we have migrated repeatedly; it is not the limit. If it speaks a documented protocol, or has a gateway that does, we can usually integrate it. Tell us what is installed and we will say plainly whether we have done it.

Service area

We serve commercial and industrial buildings throughout the Minneapolis-St. Paul metro from our shop in New Hope, including Minneapolis, Saint Paul, New Hope, Plymouth, Golden Valley, Brooklyn Park, Maple Grove, Bloomington, Eden Prairie, Minnetonka, Crystal, Robbinsdale, St. Louis Park, Edina, Roseville, Burnsville, Eagan and Woodbury. If your building is in the metro and you are not sure, call and ask.

Request service or a quote Tell us about the building. We reply within one business day, or call for anything urgent.

Request service

Page reviewed 2026-09-18. Northland Mechanical Contractors, Inc., New Hope, Minnesota, serving the Twin Cities since 1971.