Structured cabling and low-voltage installation in Minneapolis-St. Paul
Cablify installs network cabling, fiber, security cameras, access control and Wi-Fi across the Twin Cities, from the two downtowns and their skyways to Bloomington, Eagan, Eden Prairie, Plymouth and Maple Grove.
Minnesota licenses network cabling
State law treats data, communication, alarm and audio circuits as technology systems, and the people who install them must be licensed or registered.
| Work in commercial buildings | Who may install it | State inspection |
|---|---|---|
| Data circuits and cabling | Licensed or registered | Not required |
| Communication circuits and systems | Licensed or registered | Not required |
| Audio and video systems | Licensed or registered | Not required |
| Class 2 and 3 alarm and signaling circuits | Licensed or registered | Not required |
| Power-limited fire alarm systems | Licensed or registered | Required |
| Hazardous locations and critical care areas | Checked per site | Required |
Power limited technician
The state license for technology systems work. It takes 36 months of experience, and the holder can do the work as an employee of a licensed contractor or employer.
Technology system contractor
A company license whose responsible licensed individual is a power limited technician or master electrician. Its unlicensed installers register with the Department of Labor and Industry and work under licensed supervision.
Telephone and cable companies
Their employees are exempt when working on the utility’s own equipment, up to the point where it enters the customer’s building.
Who inspects the work
Plain data cabling in an ordinary commercial building needs no state inspection. Inspection applies to fire alarm systems outside one- and two-family homes, to work in hazardous locations and critical care areas, to Class 2 and 3 circuits that control power circuits, and to physical security systems in detention facilities. An inspector who finds code violations in uninspected work can still order a permit.
Minnesota’s 2026 National Electrical Code took effect on August 17, 2026.
Minneapolis
Electrical permits go through the Minnesota Department of Labor and Industry, which assigns inspectors by district.
St. Paul
The city’s Department of Safety and Inspections handles electrical permits, and fire alarm work also needs a separate fire alarm engineering permit.
Plymouth and other cities
Some suburbs run their own electrical inspection, and DLI tells contractors not to file with the state there. We check each address.
Radio coverage
Minnesota’s fire code makes emergency responder radio coverage optional unless a city’s ordinance adopts it. Bloomington does.
Built for 20 below
- Coldest on record
- -41°F, January 21, 1888
- Coldest in January 2026
- -21°F on January 23
- Days at or below zero, January 2026
- 14
- Average winter days at or below zero
- 19
Winter decides which outdoor equipment lasts. We choose outdoor gear by its rated operating temperature and check it against Twin Cities winters.
- Outdoor cameras and housings rated, and heated where needed, for subzero nights
- Cold-rated cable for runs to parking ramps, poles and gates
- Raceways sealed where they pass from cold to heated space, so condensation stays out
- Readers and locks on exterior doors chosen for frost and snowmelt
- Battery backup sized for winter storms on access control and recorders
Downtown runs through the skyways
Minneapolis’ skyways link about 80 blocks, and St. Paul’s cover 47 blocks over five miles.
Skyway corridors are shared space between buildings, so cameras, door hardware and after-hours access have to line up on both sides of each bridge. We map the doors and camera views at each connection before we install.
Cushman & Wakefield put Twin Cities office vacancy at 27.0% in the third quarter of 2026. Each tenant move is a chance to fix the cabling the last tenant left.
Skyway doors
Badge readers and door contacts set to each building’s open hours.
Corridor cameras
Views planned with both building owners so coverage meets at the bridge.
Tenant floors
Abandoned cable removed and new runs tested and labeled.
Shared Wi-Fi
Access points in the corridors and lobbies that tenants share.
New rules for big data centers
Minnesota passed new data center rules in June 2025.
What counts
A facility designed for a load of 100 MW or more.
Annual fee
$2 million to $5 million a year, depending on peak demand, paid into low-income energy conservation programs.
Water
Extra review when consumptive water use would exceed 100 million gallons a year.
Sales tax
The exemption for electricity bought by data centers ended for sales after June 30, 2025.
Smaller computer rooms and enterprise server rooms fall below the 100 MW line. Inside both, we install fiber, racks, cross-connects and tested copper.
Across the Twin Cities
Corporate headquarters, medical device makers and warehouses spread in every direction.
Downtown Minneapolis
Corporate headquarters and offices tied together by the skyway system.
Downtown St. Paul
State government, offices and the city’s own skyway network.
Bloomington and the airport
Mall of America, the largest mall in North America with 32 million visitors a year, plus hotels and offices along I-494.
Medical Alley
Medtronic’s operational headquarters. Companies in the Medical Alley network employ more than 500,000 people.
Southeast metro
Warehouses and distribution. Cushman & Wakefield says occupiers in the southeast kept favoring Eagan and Lakeville in 2026.
Northwest metro
Plymouth and Maple Grove offices, labs and industrial space.
Industrial space stays tight. Twin Cities industrial vacancy held at 4.9% in the third quarter of 2026, according to Cushman & Wakefield. New buildings need fiber, Wi-Fi over the racking and cameras at the docks.
Common questions
Do installers need a license for network cabling in Minnesota?
Yes. Data cabling is technology systems work. Installers must be licensed as power limited technicians or registered with the Department of Labor and Industry, working for a licensed technology system or electrical contractor.
Does data cabling need an inspection?
Not in ordinary commercial buildings. Fire alarm systems, hazardous locations and critical care areas are inspected, and an inspector who finds code violations can order a permit for other work.
Who inspects in Minneapolis and St. Paul?
In Minneapolis, the Department of Labor and Industry handles electrical permits. St. Paul’s Department of Safety and Inspections runs its own, with a separate fire alarm engineering permit.
Which cities do you cover?
Our Twin Cities market covers Minneapolis, St. Paul, Bloomington, Eagan, Eden Prairie, Plymouth, Maple Grove, Shakopee, Roseville and Woodbury.
Request a quote in the Twin Cities
Send the address, building type and what you need installed. For outdoor cameras and gates, tell us what runs outside.