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

  • “We know it has added to the looks of our home. We’re looking forward to many good times on it.”

    John & Dianna Kaeshoefer

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

    R.G.

  • “From the start, there wasn’t a pushy sales pitch. I felt like they took the time to understand our wants without pushing options we didn’t need.”

    R.K.

  • “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

  • “The install was quick and painless. We love the new Fence!”

    Fitzgeralds