Serving Greater Milwaukee

Contact our Milwaukee location for your next sunroom, window or door project or simply fill out our online form to schedule your free in-home design consultation. A design consultant will provide you with ideas, help make recommendations and quote you an accurate price for your specific project. We proudly serve Greater Milwaukee and surrounding area including Madison, WI and as far north as Lake Winnebago.

Great Day Improvements
N30W22383 Green Rd., Unit G
Waukesha, WI 53186

Contact Information
Local: 262-794-3031
Toll free: 800-230-8301

For Service or Warranty
Call: 262-794-3016

Hours of Operation


9 a.m. - 5 p.m.
9 a.m. - 5 p.m.
9 a.m. - 5 p.m.
9 a.m. - 5 p.m.
9 a.m. - 5 p.m.
By appointment only
By appointment only

Milwaukee Great Day Improvements Manager

Managed by
Ron DeGraw

Payment Options


  • Visa
  • MasterCard
  • Amex
  • Discover
  • Cash
  • Check
  • Financing Available

Greater Milwaukee Location Overview
Great Day Improvements, makers of Patio Enclosure brand sunrooms and Stanek brand windows, is your one-stop shop for all your window, door and enclosure needs. We are experts in our field because we custom design, manufacture, install, guarantee and service our quality products.

We service all of Southeastern Wisconsin.

To schedule a free, in-home design consultation, simply fill out our online form or call 1-800-230-8301. We look forward to learning about your project!

Certifications & Associations
  • Qualified Remodeler’s Top 500 of 2021 (#11)
  • Remodeling 550 of 2020 (#10)
  • Qualified Remodeler’s Top 500 of 2020 (#18)
  • HIP 200 of 2020 (#16)
  • Remodeling 550 of 2019 (#14)
  • Qualified Remodeler’s Top 500 of 2019 (#21)
  • HIP 200 of 2019 (#18)
  • EPA Lead-Safe Certified Firm
  • Licensed, Bonded, Insured

Products & Services

Great Day Improvements is proud to manufacture great brands like Patio Enclosures sunrooms, screen rooms and solariums as well as Stanek Windows.

But we're so much more than just a manufacturer. We custom design, make and install our products to improve not only your home, but your life as well. Trust Great Day Improvements for your next window, door or enclosure project.

Patio Enclosures
Patio EnclosuresExpand your living space with one of the products in the Patio Enclosures line. Protect yourself from the elements while taking full advantage of the outdoor views.

Stanek Windows
Stanek WindowsIncrease the energy efficiency of your home and reduce energy bills with the highest quality replacement windows and doors.

Backyard Solutions
Backyard SolutionsImprove and expand your outdoor space. Add shade, beauty and practical solutions that enhance the beauty of your backyard.

Specials & Financing

Great Day Improvements is dedicated to providing our customers with affordable products and services. Our offers and specials vary throughout the year, so be sure to check back often!

Local Project Photos

A photograph is worth a thousand words! Check out some of our local projects in your area. Or view hundreds of gorgeous photos from our main photo gallery.

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View Photo GalleryBook your FREE, No-Obligation, In-Home Consultation - Schedule Now