Custom 4 Season Rooms

4 Season Rooms in O'Fallon

Do you want to be able to enjoy your outdoor living space any time of the year? Custom Design Fence & Deck has the answer for you!

Custom Design Fence & Deck specializes in building custom 4 season rooms that match the style and architecture of your home avoiding the typical look of factory built rooms. Each 4 season room that we build is designed to be an additional climate controlled living space that you can enjoy any time of the year. Add options like skylights, a fireplace or a TV to enhance the enjoyment of your new 4 season room.

Proudly Serving:

St. Charles County, St. Louis County, Lincoln County, Warren County, O’Fallon, St. Peters, Wentzville, Chesterfield, Lake St. Louis and the entire St. Louis area. 

  • Westbury
  • Ultra Max
  • Timbertech
  • CHR
  • Azek
  • SimTek
  • Guardian
  • PolyRail Systems
  • Polyvinyl
  • Ultra Fencing & Railing
Our Work Speaks for Itself Check Out Our Photo Gallery

Customer Reviews

  • “We will be telling everyone we know about Custom Design Fence and Deck!!”

    Dave and Kathy Conwell

  • “I LOVE my fence and feel much better about the safety of my dogs and security of my property.”

    Mikki595

  • “We couldn't be more satisfied with the beauty and workmanship.”

    Bob & Nancy Morris

  • “I was well informed the entire way and was extremely happy with the final result.”

    Happy Customers

  • “It is the way a business should be run and a breath of fresh air in the world today.”

    R.G.