Wood Windows with Smart Technology
Cooper Historical Windows & Liberty Restoration Glass, divisions of The Cooper Group, specialize in fenestration preservation for sustainable building design. Our expertise encompasses historic wood, thermally broken steel, aluminum, and bronze window preservation, focusing on enhancing energy efficiency while maintaining the original historic glass aesthetic. We recognize that each window preservation project is inherently unique, requiring tailored interventions ranging from full restoration to complete replication, with nuanced hybrid approaches available.
Cooper Historical Window Product Experts
Brian Cooper
President & CEO
Brian@TheCooperGroupCT.com
Direct: 860‐460‐8861
Mathew Tucker
Director of Sales & Estimating
Mathew@TheCooperGroupCT.com
Direct: 401‐644‐9042
Wood Window Restoration
Here at Cooper Historical Windows, we are dedicated to preserving history while being architecturally respectful. We preserve the original window frame, sash and trim whenever possible, reproducing new components only where required by matching the exact details of the original window. Our Liberty Restoration Glass coupled with our high performance IGUs will add superior energy efficiency to each window without sacrificing any of the original characteristics of 18th or 19th century glass.
Wood Window Reproduction
Cooper Historical Windows accurately replicates wood windows by documenting the original window features, details, and profiles. From this, a shop drawing is created. Using our own Liberty Restoration Glass produced in-house, we offer single pane or insulated glass panels for much greater energy efficiency without sacrificing the period look of the old, wavy glass seen from the exterior. We can reproduce the characteristics of any 19th or 20th century glass. Additionally, we restore and reuse original hardware whenever possible.
Steel Window Restoration
Steel windows are often the most vulnerable elements of a historic building restoration project. With more than 40 year in Historic Restoration experience, Cooper Historical Windows is leading the way with our unique approach & service to the restoration and preservation of historic steel windows. Steel windows are found in academic, municipal, and commercial buildings, including churches, cathedrals, and other historic and landmark buildings throughout the United States.
Steel Window Fabrication
Additional Services
Liberty Restoration Glass
Cooper Historical Windows recognized early on that glass is the most important element in accurately reproducing or restoring any historical window. We believe that “glass is the engine that drives the window". Since restoration glass is rarely flat, it was not possible to effectively use it in an insulated glass unit, limiting its energy efficiency and economic appeal. Recognizing the industry's need to fill this void, we decided to set our focus on developing a restoration glass that is always flat, enabling us to build single pane glass and insulated glass units to the very highest standards, matching most cylinder glass from 1800 to 1920. Today, our Liberty Restoration Glass IGUs look historically accurate and deliver the best energy performance values in the industry.
Who We Serve
Commercial, Residential, Institutional, Sacred Buildings, Museums, Landmarks, Storefronts.
Why Choose Liberty Restoration Glass?
We have developed the only flat high performance restoration glass, closing the gap between energy efficiency and historic accuracy. We will help you decide just how powerful you want your window to be.
What We Offer
High performance, Low-E Coated Mylar Interlayer Insulated Glass Units (Available in R Values From 4.2 - 11.11)
1880's Restoration Glass
1920's Restoration Glass
Laminated Safety Glass
Tempered, Annealed or Heat Strengthened
Hurricane/Security Glass
Customizable IGUs
Portfolio
Location:
New York City
Circa
1899
Completion
2024
Cooper Historical Windows built Thermopane Insulated Glass (IG) units with historically accurate glass that is manufactured in-house, matching the existing original glass. For the interior glass, a specific high-performance Low-E glass to reflect the heat into the interior space with good light transmittance was used. This was completed 350+ times for every sash in both buildings.
Pine Orchard Union Chapel is an amazing restoration project The Cooper Group had the pleasure of being a part of. The historic landmark sits proudly along Connecticut's coastline and is a cherished landmark for the community of Branford. Built in 1897, the original building cost for this modest wood frame building was $1,532.
The Cooper Group restored 69 leaded glass units for the Sterling Law Building. All vintage leaded glass was preserved and built into high performance, insulated glass units while the 3 missing original units were accurately reproduced using thermally broken steel frames.
Woodbridge Hall is a limestone Beaux Arts building designed by John M. Carrere and Thomas Hastings. It was completed in 1901 and stands as an architectural gem on Yale University's campus. Cooper Historical Window's goal was to find a solution that would preserve the historical accuracy while upgrading the quality of the 26 windows.
Cooper Historical Windows removed and precisely replicated the front Palladian window before fitting on site and installing. We used single putty glaze and our Liberty Restoration Glass made in house. The window is built out of Accoya wood and was finished using a 3 part water based paint system. The top sash is fixed while the bottom is operable.
The Coxe Cage Field House at Yale University has been a singular and revered beacon of New Haven's sporting community & the city's historic lineage since its conception in 1928.
Measuring over 356 feet long and 156 feet wide, with a ceiling reaching almost 83 feet, the building encompasses over 3.3 million cubic feet of air space. There were major renovations to the old cinder track and dirt floor, and the skylight but, the tarnished and aging steel frame windows had endured decay and disrepair for 93 years and were in need of restoring.
Built between 1750 and 1752, Connecticut Hall is the oldest surviving building on Yale University's campus. The buildings original program was dormitories which housed a number of notable residents, including Noah Webster, John Trumbull, Eli Whitney and most famously, Nathan Hale.
The Pendleton-Chapman Farm is located in coastal Avondale, Rhode Island and produces farm to table food sources for local restaurants. The property consists of 64 acres and is situated on the Pawcatuck River. The original main house was built circa 1735 and had structural deterioration. The Cooper Group dismantled the frame and converted it to stud frame allowing modern applications such as insulation and electrical wiring. We also introduced diagonal hurricane bracing, which added great shear strength to the overall structure. The main frame was reassembled and installed on its new foundation, saving the original foundation stones for reuse.
Cooper Historical Windows designed, built, and installed historically accurate, energy-efficient low maintenance windows for this rare musical instrument museum. We made the cylinder glass to match the original glass of that period, then built Insulated Glass (IG) units for the replicated windows. We used a very efficient Low-E glass for the interior pane. The window looks like a single pane putty glazed window yet is all wood. While installing the windows we had to create custom environmental boxes for the interior to prevent humidity from entering the building and damaging the instruments. This project demanded unique components and techniques in order to be successful because of its unconventional circumstances.
Cooper Historical Windows recently completed the manufacturing of 109 double units and 8 single replicated, historically accurate windows for Hilliard Mills Dye house, Building #4. This 6,630 square foot one story building was originally constructed in the mid-1800s. John Allen was granted land for the saw mill in 1672 making it the oldest woolen mill, and one of the oldest continuously occupied industrial sites in the US.
Yale University Art Gallery is the oldest university art museum in the Western Hemisphere. The museum is situated in Yale University's Old Campus and houses Italian paintings, African sculptures, and modern art. The original building was founded in 1832, when patriot John Trumbull donated over 100 paintings of the American Revolution to Yale.
As part of an overall plan to revitalize the waterfront, the City of New Haven commissioned the 2018 construction of the new Canal Dock Boathouse. The modern design called for the repurposing of elements salvaged from the ornate, 1911 Adee Boathouse building, originally used for the Yale University crew team. The original boathouse was demolished in 2007 to make way for the new Pearl Harbor Memorial Bridge, however many of its unique features were spared.