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

  • “I needed the deck done by a certain date and they made sure that happened. I am very pleased with my beautiful new deck.”

    Happy Customer

  • “Great service, great crew, beautiful product.”
  • “Railings and stair railings and to strictest codes. Water intrusion sealing at house is excellent.”

    Happy Customer

  • “How refreshing it was to have two highly skilled professionals actually doing all the work.”

    Marc and Janet

  • “Thank You”

    Pat & Don