What Makes it Everlast?

Innovation, material science, manufacturing, and support – Made in the USA

Since 1975, Chelsea Building Products has been the leading manufacturer of extruded building products in the USA – with Chelsea products installed on millions of homes. Our innovation, material science, and manufacturing are all performed in-house, making us a true Made in the USA company.

After installing Everlast on your home, you can feel secure knowing this advanced composite siding is supported by one of the leading building product manufacturers in the USA.

Everlast has been in the market since 2009. Explore the gallery of homes to see Everlast installed on single- and multi-family homes nationwide.

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What is Advanced Composite Siding?

Our innovative triple-composite formula yields the most advanced composite siding and trim products on the market. With in-house compounding from US-sourced materials, Chelsea combines inorganic minerals, polymer resins, and acrylic colorants to produce durable, strong, and safe cellular PVC. Utilizing Chelsea's cutting-edge proprietary process and manufacturing capabilities, Everlast is extruded into planks (with 4-1/2″ and 6-7/8″ reveal options) that are impermeable and resistant to breaking, fading, rotting, and wood-boring insects.

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Extreme Fade Resistance and CedarTouch®

CedarTouch extreme fade resistanceThe face of Everlast planks are made from a highly durable and fade-resistant acrylic layer that is chemically bonded to a color-coordinated substrate. Because the cap and substrate are similar in color, should the face ever become scratched or dented, thereby revealing the substrate, these imperfections are less visible.

Lastly, each Everlast plank is embossed with the imprint of a plank of real cedar, making Everlast Advanced Composite Siding the most natural looking, UV-resistant product in the market.

Impermeable. Resistant. Guaranteed.

Everlast Advanced Composite Siding is water resistant and impermeable to wood-boring insects. Guaranteed. You will never have to replace damaged boards or trim due to weather/insect damage like you would other materials. Moreover, thanks to Everlast’s advanced composite technology, your siding will never swell, bow, rot, expand, or contract – maintaining your home’s beautiful exterior, for life.

Minimal Maintenance Required.

Choosing Everlast means decades of low maintenance for owners. An occasional light wash to remove any dust or dirt will help maintain Everlast's original luster. And unlike fiber cement or wood, Everlast does not need to be painted* or caulked, ever.

With Everlast, you can avoid common problems like these and keep your home's exterior beautiful, for life.

* Everlast can be painted, but it is not required (voiding the Fade Protection warranty).

Easy installation. No special tools. Less than half the weight of fiber cement siding.

Everlast's lightweight construction and butt joint system allows for single-person, omni-directional installation that has a natural wood siding appearance. The composite material cuts just like wood, but without the dust, and our EZStack design assures that each panel seats firmly on the one below for a smooth, straight, and solid installation without requiring special tools.


Lifetime Warranty

Everlast has a best-in-category, Limited Lifetime Warranty to the original owner with a 100% replacement guarantee*.  Upon Ownership change, the warranty may be transferred to the new owner(s) as  a Fifty (50) Year Prorated Warranty.

*Warrants against excessive color change, peeling, flaking, cracking, rusting, blistering, and corroding.

A One-Time Investment

There is zero required maintenance, and Everlast is environmentally friendly. With a one-time investment you'll increase the value of your home and enjoy a lifetime of beauty. Everlast lasts forever.  


It's time. The last time.
To install the last siding your home will ever need.