One of the greatest benefits of being a part of the DHIAA is that we will help you.  Being in business as a commercial door installer is not easy and you can come to us with the hard questions like:

  • What kind of insurance do I need and how much is it?
  • What is the best way to find work?
  • What is the best setup for my tools and truck?
  • What is the best accounting software?
  • Is it better to do Service calls or Commercial Installations?
  • When do I know when I need employees?
  • Do I charge or pay sales tax?

These are all questions that door entrepreneur’s have to answer, and with expertise, experience, and the correct tools we can help you and your business grow.

As a door installer you need info on Code requirements and other answers you may be able to find in our Forum.


There are real benefits to being a member like:

The DHIAA offers Licensing and Identification to its members so that they can easily be recognized.

With your DHIAA membership you will have the opportunity to bid on exclusive work that only members are on spec for.

The DHIAA is working with Architects, and Contractors to specify its members on large and small projects.

The DHIAA offers education for your new employees and continuing education for standardization, advancement and retention.

The DHIAA is working with Insurance companies to help you get the best deal on Workman’s Comp., Liability Insurance, and Commercial Auto through our preferred companies.

The DHIAA is working with Intuit to make accounting software more affordable and helpful to our members.

The DHIAA offers discount packages on Aflac to you and your employees of four months and more.


We Also offer educational tools to better train your staff.

  • Overview
    • What does door installation cover, what is expected from a certified installer?
    • What scope of work will you be working on?
    • What tools will you need?
  • Introduction to Material
    • How many different types of doors are there?
    • Job Organization, Setting up a job and laying out doors
    • Doors, frames, and fastening methods
    • Installing KD frames and when they are used
    • Installing welded frames and when they are used
    • Installing a door with a team and by yourself
    • Door adjustment “the art of the shim”
  • Hardware
    • Overview of hardware and how to navigate it
    • Reading plans and a hardware schedule
    • Hinges and pivots, how to install each correctly
    • Locks, Cylindrical versus Mortise, their uses and how they affect handling
    • Fire ratings and why they matter and the difference between grade 1, 2, and 3
    • Panic bars and hardware, exterior trims and cylinders
    • An overview of mortising, machining, wood and metal
    • Installing Closers
    • Overhead stops and Coordinators
    • Miscellaneous hardware and how it is installed
  • Bathroom Partitions
    • Partition types and how they differ
    • Overview of the 4 types of mounting
    • Measuring out and laying out a bathroom
    • Locating the high point and slope of the floor
    • Setting brackets, marking, drilling and leveling
    • Where to start, panel, plaster, and door
    • Plum, level, straight, and what looks right
    • Head rail and when to install it
    • Hardware and measurements
    • Grab bars and measurements
  • Installation Videos