Everlast Composite Siding

Chelsea Building Products has been the leading manufacturer of extruded building products in the USA since 1975. Their innovation, science, and manufacturing of products ensure the utmost quality and durability in the industry.

Everlast Composite Siding is made up of a triple-composite formula, yielding the most advanced composite siding and trim products on the market. The composite siding is manufactured with US-sourced materials in addition to inorganic minerals, polymer resins, and acrylic colorants. This process ensures a durable, strong, and safe cellular PVC. Using Chelsea’s cutting-edge process and manufacturing capabilities, Everlast is then made into planks that are impermeable and resistant to breaking, fading, rotting, and wood-boring insects.

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Product Highlights

General Information:

  • The trim is constructed out of the same material that the planks are made from.
  • Lightweight for easy installation.
  • Maintenance Free.
  • Withstands all harsh weather elements including; high winds, hail, heat, and subzero temperatures.
  • Planks do not bend or bow.
  • Transferrable Lifetime Performance warranty and Lifetime Fade Protection.
  • Offered in 4 1/2″ Single Clapboard, 1/4″ Thick, 12′ Long and 6 7/8″ Single Clapboard, 1/4″ Thick, 12′ Long.

Green Materials:

  • Eco-Friendly.
  • 100% Recyclable.
  •  Natural Polymeric Resins
  • Inorganic Minerals.


Harbor Blue, Seaside Gray, Misty Taupe, Polar White, Cabernet Red, Sand Dune, Chestnut, Antique Ivory, Flagstone, Canvas, Spanish Moss, Slate, Willow, Heritage Cream.

Better Than Vinyl. Better Than Fiber Cement.

Everlast Installers

Reliable Window and Siding is a preferred Everlast Advanced Composite Siding contractor. Our group of professionally skilled contractors has years of experience installing the product and maintain the highest level of craftsmanship and integrity. 

For further information about our products please feel free to send us an email or drop us a call! We can be contacted over the phone at (781) 821-2220 or through our online contact form.