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Welcome to Allen Consulting Group

About Allen Consulting Group

With over 100 combined years of field and sales experience in the commercial and industrial roofing industry, our team is committed to partnering with you to provide field-proven, ‘nuts & bolts’ solutions for your customers.

We provide proven, long-term technologies and business consulting services to our clients in all aspects of roofing and related materials. Maintaining project dynamics, code-approved assemblies and affordability is a top priority in our approach to commercial construction solutions.

  • What Our Clients Are Saying

    Keith Hastings is a tremendous asset to our company. He is just like a business partner for us.  Keith’s excellent communication, and willingness to go above and beyond, gives me more confidence that our partnership with Duro-Last was the right way to go. We are excited about our future with Duro-Last!

    Tony Gossett
    Roof Medics, O'Fallon, MO
  • What Our Clients Are Saying

    “I feel that I have been blessed with a friendship and partnership with Tom Allen. His knowledge of the Duro-Last system and its installation is helpful. I certainly would not be where I am at today without Tom’s help.”

    Kirk Duer
    Duerson Corporation
  • What Our Clients Are Saying

    “Tom has been an invaluable source of information and guidance over the past 30 years.”

    Gene Fowler
    Sentry Roofing
  • What Our Clients Are Saying

    “Tom is the only manufacturer’s rep I’ve worked with that has invested in our company and wants us to be profitable. Tom calls or visits us regularly and in some cases, advises us on projects that have nothing to do with the products he reps. Most reps show up to sell us more of their product and ask how we can sell more of their product; this has never been Tom’s approach.”

    Brandon Hoch
    Wolf Roofing
  • What Our Clients Are Saying

    “Many people using the term ‘Consultant’ in their title, I have found are titled completely wrong. But not so with Tom Allen as he is one of the best roofing ‘Consultants’ I’ve ever worked with. He knows roofing and will go to great lengths to make sure you understand what you need to do and why. He will assist you at any stage of a project from lead generation, through roof investigation and recommendation, to roof installation and complete customer care. We consider him a business partner and ally.”

    Dan Jewett
    Jewett Roofing Company
  • What Our Clients Are Saying

    “We have been working with Tom Allen and the staff at ACGI for almost twenty years. They have been an integral part of our success in the roofing industry. We greatly appreciate all of the help and support they have provided. Looking forward to working with ACGI for many more years to come.”

    Dan Determan
    Beckwith Commercial Roofing
  • What Our Clients Are Saying

    “I have known Tom for over 25 years and he has always been helpful. Tom has always provided valuable information when I have inquired about different roof project inquiries and solutions.”

    Jack Templeton
    Templeton Roofing
  • What Our Clients Are Saying

    We are versed in the Duro-Last system and the way to do things. However, when Tom Allen came on the scene years ago, he helped us grow personally. In fact after this many years, I still call him for advice and technical questions. In addition to that, I consider Tom a personal friend as well as a business “partner”.

    Jimmy Spears
    Delta Roofing, Inc.
  • What Our Clients Are Saying

    Tom is always been available and able to answer question immediately and that has been very helpful to me.

    Bob Meyer
    Meyer Roofing Co.
  • What Our Clients Are Saying

    We have been working with Ryan Kinneberg since June of 2016 on an historic, highly-custom, Ludowici clay-tile project for the Keokuk Union Depot. The project has many challenges, including several that Ryan inherited from predecessors. The project was already rolling down the track but Ryan brought his “A-game” from the moment he stepped on board.  He has taught us a lot about other roofing materials as well and we highly recommend Ryan Kinneberg for any and all types of roofing projects.


    Neal A Vogel
    Principal, Restoric, LLC
  • What Our Clients Are Saying

    We, at Giese Roofing Company, are new to Duro-Last.  Working with Ryan Kinneberg has been a breeze. He has been extremely patience in going over roof system, answering my technical questions and meeting in person to go over a large commercial project. Ryan and the roof inspector were on site on start day to help answer questions from our foreman.

    Danny Sprank
    Giese Roofing Company

We Proudly Represent


See Our Completed Installations

We’re committed to the vision of the building owner and the requirements of the specification expert, to maintain the personality and security of every building.

Every project is given full attention to detail to ensure they meet the standards of all involved while using sustainable and environmentally responsible products.