4000 Energy Plus Siding

Window World 4000 Energy Plus provides additional energy efficiency and a beautiful finish.

Energy Plus SidingFeatures:

  • Premium 1-1/4” Energy Efficient Insulation Thickness
  • Advanced Rolled-Over Nail Hem
  • Unique Panel Locking Design
  • Superior Durability
  • Straight and True Course Lines
  • Oak Grain or Matte Finish
  • Lifetime Transferable Warranty

Energy Efficient.

Window World 4000 Energy Plus Siding features a contoured insulating underlayment designed to fill in the gaps left behind with traditional non-insulated siding. Its premium 1-1⁄4″ thickness is designed to provide an extra blanket of protection versus traditional siding.

Premium Durability.

4000 Energy Plus SidingThe contoured insulating underlayment is engineered specifically for Window World 4000 Energy Plus Siding. Together they deliver 5 times more impact resistance than conventional siding. The result is a siding system designed to withstand not only typical ‘around the house’ accidents, but also Mother Nature’s worst.

Peace of Mind.

Window World 4000 Energy Plus Siding, with a Perm Rating of 5, is designed to not trap moisture, but allow your exterior walls to breathe. In addition, an organic additive deters termites from nesting behind your siding, yet is non-toxic and safe for humans and pets. Plus, Window World 4000 Energy Plus Siding is backed by a lifetime, limited transferable warranty — including fade and hail protection.

Exceptional Performance.

4000 Energy Plus SidingAn exceptional siding is one that not only provides durability, energy efficiency and protection, but most importantly, looks beautiful for a lifetime. Window World’s 4000 Energy Plus insulating underlayment adds strength and support, providing straight and true course lines, not the wavy or flimsy appearance sometimes associated with low-grade siding.


Think 4000 Energy Plus Vinyl Siding could be right for your Pittsburgh home? Contact us today for your free home estimate!

4000 Energy Plus Siding - Replacement Siding Pennsylvania

Customer Reviews

  • "I hired Window World for an install of three extremely large slider windows. These are windows other companies said could not be done. The windows were installed over the course of a day and a half, and the installers exceeded my expectations in every way, as did the quality of the windows! I highly recommend them to anyone!"
    - Anne F.
  • "I had two windows that I haven't used for over 30 years. One of the window panes actually blew out during a wind storm. I called Window World and Wayne was great! They were very professional, friendly, cleaned up all the mess and did a GREAT job! Thank you Window World, we will definitely go back to you when we need new replacements!"
    - Pattie D.
  • "Fantastic results, the life time warranty is what sent Window World to the top in our home. The seller explained every detail of measuring to installation to clean up. The install crew we polite and showed every step of the install. Would highly recommend to all. And the PRICE can't be beat. Thank you Window World."
    - Jeff H.