Milwaukee's choice for sunrooms, porch conversions and home improvements from remodeling to room additions!

Please call Sales and Service at 262-364-7655

Our installation crews are available for communities throughout Southeastern Wisconsin,
including Milwaukee, West Allis, Racine, Hartford, Kenosha and our lakeside communities.

image shows Four Season Sunroom built by Millennium Windows & Sunrooms in Milwaukee, WIWe can build your sunroom, convert your screened porch into a sunroom, enclose your patio, replace your windows or build a complete, custom addition to your home. And more! Just ask us.


For your free estimate, use our online form, or call Millennium Windows & Sunrooms at 262-364-7655.

Brookfield is a great family-oriented community with that small town feel close enough to the “big city” to enjoy the best of both worlds. Even Al Capone, the famous Chicago mobster, found Brookfield a great place to buy a home and make moonshine! Athletes like retired Cleveland Browns offensive tackle Joe Thomas and retired Milwaukee Brewer Richie Sexon hailed from Brookfield. The Elmbrook Historical Society hosts several events annually celebrating the lives of early Brookfield settlers, including Caroline Ingalls, who was born in the Brookfield area. The city is often visited by fans of her daughter, Laura, author of the Little House on the Prairie book series.

Take advantage of your Brookfield home by creating an outdoor living space with Millennium Windows & Sunrooms!


Yes we can convert your screened porch into a 3 Season Sunroom! Let Millennium Windows & Sunrooms take a look at your screened porch and we will work with you to replace the screens with 4Track Vinyl Windows and doors.

We will inspect your wood or aluminum frame, concrete base and current roofing structure and inform you of the work and costs associated with the porch conversion. Our goal is to take that screened porch and turn it into a sunroom that will keep out the wind and rain, and unwanted pests!

Brookfield is a great community with great neighborhoods.  You can add to your home’s value by adding an outdoor living space, or building a custom addition.

Millennium Windows & Sunrooms offers complete home improvement services, including:

  • 3 Season or All Season Sunrooms with glass or 4Track Vinyl Sliding Windows and Doors
  • New screened porches, or convert your existing screened porch into a 3 Season Sunroom.
  • Patio enclosures, or convert your existing patio enclosure into a 3 Season Sunroon
  • Replacement windows. Remove those leaking, aging windows with more energy-efficient, attractive windows. See for yourself the difference.
  •  Custom additions to your home, including design and construction to help finally get that new room or rooms you have been waiting for!
image shows icon for zero percent sunroom financing

Take advantage of our 12-months No Payments, No Interest Plan for qualified buyers. Start enjoying your sunroom lifestyle now. 

  • image shows Visa credit card logo
  • images show Mastercard logo
  • image shows American Express logo
  • image shows discover logo

Tags: sunroom, four season rooms, 3 season room, sun porch, glass room, room additions, prefabricated sunroom, conservatory, patio glass enclosures, room additions, solarium, florida room, decks, pergolas arbors, milwaukee, racine, kenosha, grafton, lake geneva, wisconsin, shorewood, west allis, wauwatosa, greenfield, oak creek, mequon, glendale, elm grove, pewaukee, hartford, oconomowoc, menomonee falls, delafield, nashotah, waukegan, porch conversions, replacement windows, vinyl 4 track