About Winchester Industries

Winchester Industries has been manufacturing high-quality, triple-pane replacement windows and doors since 1983. Privately owned, Winchester manufactures Bristol and Oxford products that have saved homeowners energy, time and money while increasing comfort, beauty and value to their homes. We take great pride in developing satisfied customers across the USA while also supporting our dealer base with individual support and attention. Our superior quality and dedication to being different have marked our position in the industry with integrity and steadfastness.

Our Story

Since 1983, Winchester Industries has been a highly respected member of the replacement window and door industry. A privately-owned business, Winchester has two production lines that produce Bristol and Oxford windows and doors.  Winchester maintains an exclusive dealer network of specialty window and door companies. This network covers states within the USA that are represented by exclusive territories. Sales representatives are knowledgeable, and installers are carefully trained to measure each home and precisely install these units. All products are custom-made for every opening, which ensures a perfect fit. 

We believe that homeowners should only replace their windows once. To achieve this, a superior product designed to perform and last a lifetime must be used. Winchester, its employees and dealers, take great pride in the American-made craftsmanship of it’s windows and doors. Homeowners who select our products join us in this well-deserved satisfaction.  

The foundation of Winchester was built when owners Robert Weis and George Yuhasz combined over thirty years of industry knowledge to debut the first triple-glass Bristol replacement double-hung window. Making triple-pane windows over three and one-half decades ago set the stage for Winchester to be a leader in window innovation. The need for more energy efficient windows was apparent then and remains steadfast today as energy costs continue to escalate.  

The revolution of Winchester’s top-of-the-line windows has evolved from clear triple glass to triple glass with multiple energy efficient features and patented technologies. These features include our own proprietary gas mixture, specialized spacer system, and superior reflective coating materials in true triple-pane insulating glass units. A superior insight into rising energy costs is still the reason Winchester only manufactures a state-of-the-art high technology product.

Multiple unique and patented features, including our own extrusions coupled with our superior glazing features, clearly differentiates our windows and doors from most of the other replacement windows on the market. Our Q-IV Locking System was pioneered to surpass security features already on the market. Four hardened steel locking points create not only a visual difference but adds a built-in security feature that allows Winchester to provide a guaranty against home break-ins.

Today Winchester’s President Michael Sugrue oversees all operations of the business. The majority of Winchester’s staff have 35+ years with the company. Because of the sound foundation that was established and employee dedication, Winchester enjoys a financial stability seldom seen in corporate America. Our mission to be different and special has been the steering force since day one.

The window industry is attempting to catch up to what Winchester started 40+ years ago. When the world was exposed to Energy Star qualifications and the 30/30 ARRA (American Recovery and Reinvestment Act of 2009) qualifications to be eligible for tax credits, Winchester products met and excelled in every criteria. With the introduction of R5 and even better windows in the very near future, our products remain forerunners in the qualifying chapter that government regulations continue to write. 

Choosing to purchase Bristol or Oxford replacement window and door products will bring years of outstanding performance, comfort and security to you and your most valued possession.  Joining the Winchester team of dealers will add the differentiation needed to succeed in the sea of window and door companies that homeowners are asked to choose from.


Why Winchester

Because replacement windows and doors should not be considered standard. They need to provide ultimate protection from severe weather conditions while providing ease of operation, beauty and value for a very long time. Many products on the market use off-the-shelf materials and designs making them primarily all the same! 
Winchester’s goal and mission has always been to make superior innovative, energy-efficient window and doors that are DIFFERENT from all the rest. We are the company that has defined this industry. Our continuous improvements, increasing knowledge, and dedicated team members are what make Winchester a powerhouse manufacturer to partner with.

The Winchester Difference

We’ve worked hard to set ourselves apart from other replacement window and door manufacturers in the industry. Our products are created with new technology, advanced safety measures, and fully customized options to guarantee you the best product on the market.


Winchester’s energy-efficient technology behind their replacement windows and doors is what separates them apart from the average window and door company.


Our Bristol Q-IV Locking Security System outranks other security already on the market. Four hardened steel locking points create not only a visual difference but add a built-in security feature that allows Winchester to provide a written guarantee of protection.

Unique Features

Winchester’s unique and patented features paired with our superior glazing features are what differentiate them from a majority of replacement windows on the market. We offer a full line of custom energy efficient window models, steel entry doors, and triple-pane patio doors in various styles, sizes, and colors. 


Winchester is backed with decades of experience that has led us to be the top competitor in the replacement window and door industry. Our dedication, expertise, and perfect fit guarantee are what makes Winchester Industries the best!


Our company’s philosophy is to be different than all the rest. That is why our products surpass all other products on the market. Our manufacturing process is not a one size fits all, it’s custom to our client’s needs. Winchester’s difference can be seen in every one of our products. 


Winchester specializes in supplying our dealers and their clients with top-of-the-line products and services. We assist our dealers in eliminating price shopping by providing them with the best products that no other dealer can offer. You won’t find the same products or experience anywhere else in the market.