Custom 3 Season Rooms

3 Season Rooms in O'Fallon

Do you want to extend the amount of time you are able to spend outdoors?  Custom Design Deck & Fence can help you out!

Custom Design Fence & Deck specializes in building custom 3 season rooms that match the style and architecture of your home avoiding the typical look of factory built rooms.

Each 3 season room that we build is custom designed to meet your needs and specifications. Choose from a wide variety of materials that are available for your specific criteria. Add options like skylights or a fireplace to enhance the enjoyment of your new 3 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

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

    Happy Customer

  • “Our salesman was Gerry Beckman, his straight-forward, honest and low-key presentation was much appreciated.”

    Happy Customer

  • “Railings and stair railings and to strictest codes. Water intrusion sealing at house is excellent.”

    Happy Customer

  • “It really is exactly what we were anticipating!”

    Steve Z.

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

    R.G.