Your Complete Opening Solution

For Expert Sales, Service & Installation of…

·Commercial Doors & Frames

·Architectural Hardware

·Power Operated Doors

·Electronic Access Control

·Aluminum Storefronts

·Glass & Glazing

·Locksmith Services

·Fire & Life Safety Code


Master Door Technologies staff specialize in providing expert sales, service, installation and consulting for commercial door systems, architectural hardware, power door operators and electronic access control systems.

Are you frustrated with the guessing game of which of your door service companies to call? Is the issue manual door or hardware? Access control system? Possibly electronic security hardware, or even the power door operator?

As you likely have a different company for each system integrated to the opening. Meanwhile incurring cost of multiple service calls just to rule out their own equipment. But not actually identifying what the problem is.

The Master Door Technologies team of experts are dedicated to servicing the entire door opening. From basic manual doors, architectural hardware and Locksmith services. To door automation, networked electronic access control systems and everything in between.

Facilities Door Maintenance

Healthcare, school districts, office, manufacturing and industrial facilities large or small. Contact Master Door Technologies today for a free consultation and quote.

Division 8 Contracting

Contract material supply, installed or installation of GC / owner supplied materials. Either design build or per plans and specifications. Our expert staff will work closely with you to reduce the issues frequently associated to Div. 8.

Service & Installation

Professional service and Installation of architectural hardware, locksmith, and commercial wood, steel or aluminum openings.


On site MIG / TIG welding of aluminum and hollow metal doors and frames. Save cost with repair, over replacement.

Power Operated Doors

AAADM certified service and installation of ANSI 156.19 Power Assist / Low Energy Power Operated Doors & ANSI 156.10 Power Operated Pedestrian Doors.

Dear potential clients,

I founded Master Door Technologies after 25 years of working in the commercial door industry. Starting out in a Twin Cities based commercial door distributors hollow metal fabrication shop and eventually starting up their service department.

After over a decade of managing it, I am all too familiar with the frustrations of commercial doors, both Div. 8 Sub-contracting & end user sales / service. Due to multiple sub-contractor’s door integrations. Therefore, my Mission is to eliminate our client’s necessity to have more than one subcontractor and/or service company. By providing a “Complete Opening Solution” for all their commercial doors.

Joshua R Granzow
Master Door Technologies Founder

Master Door Technologies

Ph: 763-999-4131
Fax: 763-592-8158

6867 20th Ave S. Suite 300
Hugo, MN 55038

24 Hour Emergency Service