Screened three-season porch interior with dark composite flooring and black railings

3-Season Rooms

3-Season Rooms in Madison & Dane County

A three-season room is the fastest way to add usable square footage. Enjoy bug-free evenings from April through October with vinyl or screen panel systems you can open on a perfect Wisconsin day.

  • 10+ Years Experience
  • Licensed & Insured
  • Free Estimates
  • Locally Owned & Operated

What's included with 3-season rooms

  • Vinyl or screen panel window systems
  • Insulated roof and finished ceiling options
  • Built on a new or existing deck structure
  • Upgradeable to a 4-season room later

Local craftsmanship, start to finish

Jesus Rincon has spent more than ten years in the trade, and Capitol Decks is owned and operated right here in Sun Prairie. Every 3-season rooms project starts with a free on-site visit, a written itemized estimate, and a clear schedule — then a crew that shows up, cleans up, and walks the finished job with you.

We handle permits with Sun Prairie, Madison, and Dane County offices, build to current code, and work in English or Spanish. Ask about how 3-season rooms pairs with deck construction for a complete outdoor living space.

3-Season Rooms across Dane County

We provide 3-season rooms in Sun Prairie, Madison, Middleton, Waunakee, Verona, Fitchburg, Stoughton, DeForest, Cottage Grove, Windsor, Oregon, McFarland, Columbus and surrounding communities within 60 miles of Sun Prairie.

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Get a Free Estimate

Ready to start your project?

Free, itemized estimates across Sun Prairie, Madison, and Dane County. Call or send a few details and we'll get back to you.