Ever since we introduced the first low-maintenance residential siding in 1947, we’ve been raising the bar on appearance and performance.

Today, our advanced technology delivers stronger, more rigid siding systems that hug the home tighter, as well as rich, long-lasting colors and subtle textures that capture the authentic look of wood. Trim and accessories are available in a full range of styles and complementary colors for a completely custom look.

Whether you are remodeling a Victorian jewel or building a new home, whatever your budget, you will find that vinyl and steel siding offers the choice and value you’re looking for.


Our products are designed to improve the enjoyment of your home, as well as its value. Whether you are remodeling, restoring a historic home or building a new one.

James Hardie Siding

Siding Features

Our siding is made from a proprietary compound developed by engineers for uncompromising performance. Each ingredient contributes in a unique way to its beauty, durability and lasting quality.

, Siding, Thermal King Windows, Thermal King Windows PureStrength™ PVC resin is the main ingredient in our vinyl siding. It provides strength and weather resistance while preventing moisture infiltration, even in extreme weather. Panels won’t rot, warp, shrink or swell. Maintenance is minimal and value is preserved.
, Siding, Thermal King Windows, Thermal King Windows Ti-Pure® titanium dioxide from DuPont prevents ultraviolet degradation. Even blazing summer sun won’t damage the beautiful surface.

Ti-Pure® is a registered trademark of E.I. DuPont de Nemours and Company for its brand of titanium dioxide. Only DuPont makes Ti-Pure®.

, Siding, Thermal King Windows, Thermal King Windows StayRight™ PVC stabilizers help to prevent heat degradation during the manufacturing process and after installation.
, Siding, Thermal King Windows, Thermal King Windows TrueShield™ impact modifiers provide exceptional impact resistance, helping your siding resist dents and dings from routine around-the-house activities.
, Siding, Thermal King Windows, Thermal King Windows DesignersChoice™ pigment concentrates produce uniform colors that go clear through the panel. The colors can’t wash away because they are part of the siding itself.
, Siding, Thermal King Windows, Thermal King Windows BASF Luran® S ASA is a weatherable polymer which provides superior fade resistance and better performance on darker colors.

Luran is a registered trademark of BASF AG.

Siding Partners


Thermal King partners with objective, third-party organizations that continuously test our products and verify that we meet the highest standards of performance, quality, value and safety.

, Siding, Thermal King Windows, Thermal King WindowsThe Vinyl Siding Institute (VSI) sponsors independent, unbiased testing, inspection and certification of vinyl siding performance. Thermal King siding has been certified under a VSI program to meet or exceed the rigorous battery of tests known as ASTM D3679, the accepted standard for vinyl siding quality.
Thanks to this certification program, you can rest assured that, when installed according to our instructions,Thermal King siding will meet or exceed industry standards for quality and performance. You can also be confident that your siding will maintain a uniform color over time, lay straight on a flat wall and withstand the effects of normal seasonal temperature fluctuations.

, Siding, Thermal King Windows, Thermal King WindowsUL Classified is a name consumers have come to trust over the generations. Products that display the Underwriters Laboratories logo have been strenuously tested to ensure that they are safe for everyday use.
Underwriters Laboratories applies these same safety considerations to manufacturers of building materials, including vinyl siding. We voluntarily submit to annual UL testing and quarterly inspections to assure you that our siding products are UL Classified to ASTM E84.

, Siding, Thermal King Windows, Thermal King WindowsThermal King Insulated Siding Products feature insulating foam underlayments from Progressive Foam Technologies®, an ENERGY STAR® partner. When correctly installed, these products can help meet the performance standards of an ENERGY STAR-qualified new home.

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