Composite Windows Pioneer Thermal Line Changes its Name to THV Compozit Windows & Doors

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Thermal Line Windows, one of the original innovators of replacement windows made with composite material, announces they are changing their name to THV Compozit Windows & Doors. In conjunction with the name change is a new corporate identity, logo and website,

New THV Compozit Logo

the THV Compozit Windows & Doors name better represents who we are as a company and showcases our commitment to the revolutionary Compozit material we use in our products.

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Thermal Line Windows announced this week that it would officially be changing its name from Thermal Line Windows to THV Compozit Windows & Doors, which is the name of the company’s top selling, primary product line.

The new THV Compozit Windows & Doors identity will capitalize on all assets of Thermal Line Window’s success –cutting-edge, industry-leading products, dedicated and knowledgeable employees, and over three decades of experience in the field –to ensure their longevity well into the future. All are reasons why THV Compozit Windows & Doors and the THV Compozit Window Systems are among the most trusted, high quality brands in the home improvement industry today.

The company will continue to create and manufacture custom-made replacement windows and doors, operating no differently than it has in the past with the same staff, technology, and dedication to customers.

In conjunction with the name change, THV has launched a new, re-designed website,, featuring the new corporate identity and logo. The website is a major enhancement to the company’s prior website and presents the company's offerings, background and new image.

According to Charles L. Smith, the CEO of THV, “the THV Compozit Windows & Doors name better represents who we are as a company and showcases our commitment to the revolutionary Compozit material we use in our products.” Thermal Line has been building composite windows since 1989 and were one of the first manufacturers to do so. THV Compozit windows insulate more than 200% better than vinyl, which is what the majority of replacement windows are made with today.

About The THV Compozit Window System:

The company has a strong reputation in providing products that go above and beyond industry standards, and there was no exception when creating the Compozit Window System. A window that outperforms the competition, the THV Compozit triple pane window is ranked as one of the most energy efficient windows on the market. The Compozit Window System, which is stronger than wood and insulates better while outperforming vinyl windows, comes in 8 colors and 3 interior wood grains. Because of the energy efficiency of THV Compozit windows, they can save homeowners as much or more than 40% on fuel costs.

Furthermore, THV Compozit windows are not as affected by extreme temperature and humidity changes like their vinyl counterparts. They are not prone to bow, warp, crack or fade so homeowners don’t have to worry about the contraction and expansion problems that occur in other window frame types. This unique, high quality window gives THV Compozit dealers the peace of mind that comes from offering the best window available on the market today.

About THV Compozit Windows & Doors:

For over 30 years, THV Compozit Windows & Doors, formerly Thermal Line Windows, has served their vision to change the replacement window industry. Initially focusing solely on the replacement window business, THV Compozit Windows & Doors has evolved into a premiere replacement window manufacturer, servicing many aspects of the home improvement industry today. Since their establishment in 1984, the company has grown to be a leader in the replacement window industry, manufacturing, selling, and installing quality replacement windows across the United States.

Exceeding customers’ needs is what motivates THV to constantly innovate and modify their product line, thus preserving their reputation as an industry leader. THV was one of the first to manufacture composite replacement windows. The company not only takes pride in creating windows and doors that enhance the home’s comfort and beauty, but also offers other home improvements such as kitchen and bath remodeling, siding, gutter protection, decks, roofing and more through their network of corporately-owned dealerships. These dealers include Leingang, Rolox, and Primax Home Centers, THV Stores, and Thomas Construction, which together serve 16 states in the Midwest and Midsouth.


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Jim Haddaway
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