​​Restoration Works, Inc. has been restoring windows for well over a quarter of a century.  We are #1 in America for historic authenticity, structural and aesthetic renewal, and in Green restoration practices.  Our comprehensive window restoration process produces the "Timeless Window", our brand of window restoration.  Historic windows are typically around 100 years old and were milled using original forest wood which had grown for hundreds of years before it was harvested.  We expect our "Timeless Window" to be around for another hundred years.

Since 1982, Restoration Works, Inc. has been pioneering the window restoration field.  The firm undertook the first major window restoration project in Illinois, restoring over 250 windows for the St. Nicholas Hotel in Springfield, a site listed on the National Register of Historic Places.  The windows were stripped to bare wood, all holes and checking were filled and smoothed, the glazing was redone, and the sash were primed and painted, a process far more thorough than anything the region had seen before.

Several projects later, in 1988, the process was further refined when the company came under the technical direction of Byron Wallace.  Restoration Works, Inc. teamed up with renowned architect, Gunny Harboe and a group of skilled architects from Columbia University's Preservation Program to build upon Restoration Works, Inc. now established process.  This team created a holistic window restoration program for the Rookery, the jewel of Chicago's historic downtown office buildings.  All aspects of the restoration process were scrutinized and perfected.  The building's 835 large commercial wood windows were successfully restored, proving that large restoration jobs are not just possible, but also economically feasible. 

In just over 33 years, Restoration Works, Inc. has restored thousands of windows on hundreds of buildings, more than 50 of which can be found on the National Register of Historic Places.  The firm's work spans the gamut of building types:  commercial, institutional, government, museums, mansions, and multifamily residences.  All of this work has always been performed with the most revolutionary and environmentally friendly processes as possible. 


Restoration Works, Inc.

The premier company nationwide for historic Window, Door, and Architectural Element restoration and preservation




The General Building Contractors of New York State awarded the 2003 "Build New York" Award in the Restoration Category for the restoration of the Matthewis Persen House (Kingston, New York)

The Commission on Chicago Landmarks awarded a 2002 Chicago Landmark Award for Preservation Excellence for the restoration of the Glessner House Museum (Chicago, Illinois)

The Landmarks Preservation Council of Illinois awarded the Richard H. Driehaus Award for the 1999 Preservation Project of the Year for the restoration of the George Pullman Elementary School (Chicago, Illinois)

The Landmarks Preservation Council of Illinois awarded the Richard H. Driehaus Award for the window restoration of the Carl Schurz High School (Chicago, Illinois)

The Landmarks Preservation Council of Illinois awarded the 
Richard H. Driehaus Award for the restoration of the Pattington Apartments (Chicago, Illinois)

Company Profile

Restoration Works, Inc.

Sustainable Material Being Restored in a 

Sustainable Manner


Founded: 1982

President:  Gail Wallace

Areas of expertise:  Historic Restoration and Preservation, Green Stripping and Paint Removal, Glazing Possibilities, producing the "Timeless Window"

Awards & Recognition

Approved Window Restoration Company Listings

National Park Service

Illinois Historic Preservation Agency

Landmarks Preservation Council of Illinois

Chicago Landmarks Commission

Frank Lloyd Wright Conservancy

The Window Rehabilitation Guide for Historic Buildings​

Georgia Tech

Landmarks Illinois

Preservation Chicago


William Grosche Testimonial

December 1, 2013

Jo Joy Testimonial

April 23, 2014

Hi Gail, 

I just wanted to let you know how pleased we are with our window restoration!  They are simply beautiful and we get compliments on them all the time! ...I wanted to reach out to let you know how ultimately happy we are with the work you performed...Again, thank you for your craftsmanship.  If you ever want to use us for a reference, I would be happy to sing your praises.


Jo Joy

Johnson Lasky Testimonial

July 17, 2002

Dear Gail and Byron,

Congratulations! The Glessner House Courtyard Restoration Project recent;u received a 2002 "Chicago Landmark Award for Preservation Excellence."  There was no application for this award - the Commission on Chicago Landmarks identified 16 "outstanding projects that involved notable improvements."

You did an excellent job on the project; the end results are superior.  You should be proud, as we are, of this achievement.

Anne T. Sullivan, AIA

Senior Associate

University of Illinois Urbana-Champaign Testimonial

October 15,2001

Dear Gail and Byron,

Quality education at the University of Illinois depends upon many factors but the addition of speakers who can share real world experiences is particularly important.  Your expertise in window restoration greatly added to the learning experience for this class.  Seeing projects in the middle of the restoration process is especially useful.  The "work in progress" in your shop, and on many buildings throughout this state are a testament to the quality and commitment of your firm to historic preservation in Illinois.

Thanks again for sharing your expertise with this class.

Mike Jackson, FAIA

​Visiting Professor of Architecture