Experts on the Restoration of Stained & Architectural Glass
Start-to-Finish Project Management
Experts with 70 plus years of combined stained glass experience

Stained Glass Consulting Services specializing in all church and religious facilities as well as secular and government buildings.

Our goal is in the true preservation and conservation of Americas stained glass windows to ensure historical and artistic integrity. Stained glass windows are an extremely important part of Americas artistic heritage, and here at NSGCG, we believe in properly preserving, conserving and protecting Americas stained glass windows for all future generations.

What makes NSGCG different is real-world hands-on experience. Our consulting services are different from what a stained glass studio would offer, we are independent and not affiliated with any stained glass studio. Our goal is to provide you with honest and unbiased solutions. This means we represent you and will provide you with the specifications and solutions that best suit your stained glass windows needs.

The Stained Glass industry in the United States in general is decades behind the advancements in conservation and preservation techniques utilized across Europe. There are often better options and solutions available to you than what most studio representatives are willing, or able to recommend. Many stained glass studios do not like independent stained glass consultants, They claim we end up raising costs for the owner. The truth is, we often help save the owners money by eliminating unnecessary recommendations. We will greatly reduce the risk of damage from inappropriate techniques and methods. We will maintain accountability and ensure that what work is done, is done properly based on international specifications, and is done to a much higher standard.

Our experience in working with studios, architects, engineers, historical societies and insurance companies means that no matter your needs, our expert and professional services will prove to be your best solution.

We offer comprehensive inspections and condition reports, comprehensive specifications, appraisals, photographic documentation, project management, owners agent services and final walk through services representing owners.

Whether you’re curious about the condition or the value of your windows, we can provide you with accurate answers. If you have already received bids looking for a stained glass studio to perform repair, stabilization, historical restoration or a protective covering project, we will help you make sure you have the proper conservation and preservation specifications and we make sure you are comparing apples to apples and make sure the specifications match your needs.

We are located in the heart of the Midwest and service the continental United States.

Above
5
Based on 5 reviews
powered by Google
  • Outstanding expertise! The owner of NSGCG Karl Erickson was masterful in his analysis of just a few photos I sent to him. He gave me meticulous details about the glass, lead, and solder used in my Stainglass window from 1911. He was even able to give me a very well educated guess as to who made it. Karl is quite prompt, with a very reasonable fee. I highly recommend his services.

    Michael Sutton Avatar Michael Sutton
    February 17, 2022

    I'd like to thank Karl at nscg for taking time from his busy day to help me identify the origin and determine the value of my stained glass pieces. His efforts far exceeded anyone else's that I had tried to contact concerning the matter. I'm no stained glass expert but I can tell when someone is looking out for my best interest and giving me a non-biased professional assessment. Very professional, very helpful, and very much appreciated!

    media thumbnail 0media thumbnail 1
    Chuck Berzett Avatar Chuck Berzett
    February 17, 2024
  • Great communications!!!!. Very thorough and comprehensive appraisal in every way. A pleasure to talk with and do business!!!

    Randal Avatar Randal
    February 17, 2022

    Karl was fantastic with providing the history and how my stained glass windows were made. He also gave me great ideas to conserve and to get the best value on them. I highly recommend Karl and NSGCG on any of your inquiries and stained glass needs. Thank you Karl!

    media thumbnail 0
    Orlando Medina Avatar Orlando Medina
    February 17, 2023
  • We are remodeling our home and weren’t sure if there was any value to the existing stained glass windows – so we went looking for an expert. Karl at National Stained Glass Consulting Group fit the bill. Karl advised us appropriately, and his expertise and input were very much appreciated. We would highly recommend Karl for your stained glass consulting needs.

    media thumbnail 0media thumbnail 1media thumbnail 2
    David Wolfe Avatar David Wolfe
    February 17, 2023