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

  • “Their bid was the most reasonable of the five. Ask for Gerry, Residential Sales, and you won't go wrong with this salesperson.”

    Happy Customer

  • “The foreman showed me how they reinforce their decks to last a lifetime. Don't bother with other companies. This company is truly the best.”

    Happy Customer

  • “It was a very extricate design with a lot of opportunities to make mistakes. They understood what we were trying to do better than the other people I spoke with.”

    Happy Customer

  • “They showed up on time as promised and did a wonderful job with a steel fence installation.”

    Jeff T.

  • “Absolutely LOVE our new fence!!”

    Denny & Robin Canoy