Serving Greater Washington, D.C.

Contact our Manassas, VA 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 project. We proudly serve the greater Washington D.C. area including North Virginia.

Great Day Improvements
8436 Kao Circle
Manassas, VA 20110

Contact Information
Local: 703-496-3019
Toll free: 800-230-8301
Email: Washington@greatdayimprovements.com

License Information
DC 420214000016
VA 2705157137
MHIC #132308

Hours of Operation

Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday

8:30AM - 5:00PM
8:30AM - 5:00PM
8:30AM - 5:00PM
8:30AM - 5:00PM
8:30AM - 5:00PM
By appointment only
By appointment only

Washington DC Great Day Improvements Manager

Managed by
Tom Edger

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

Greater Washington Location Overview
Great Day Improvements has served the Metropolitan Washington DC and Washington areas for over 3 decades with over 15,000 satisfied Patio Enclosures customers. As a full service remodeler, we understand the comfort our customers have knowing they’re dealing with a business that can give them “Big Company Support”. And at the same time, we are a family business who takes great pride in each individual project no matter how modest or grand so we also understand the comfort our customers have in knowing they get “Small Town Service”.

At Great Day Improvements LLC, we don't operate in a high pressures sales pitch model. We appreciate every opportunity to meet with homeowners and discuss the projects & dreams they have in mind. We will evaluate your situation, make suggestions and show you how we would approach it.

Whenever you decide you’re ready to move forward, we want to be the ones you choose. You owe it to yourself to set aside an hour or so and let one of our professionals give you an honest, no-hassle evaluation…

Certifications & Associations
  • Remodeling 550 (#17)
  • Qualified Remodeler’s Top 500 of 2017 (#24)
  • HIP 200 of 2017 (#21)
  • Qualified Remodeler's Top 500 of 2016 (#21)
  • HIP 200 of 2016 (#18)
  • Qualified Remodeler's Top 500 of 2015 (#22)
  • HIP 200 of 2015 (#19)
  • 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.

Washington sunroom Washington sunroom design with patio Washington awning design

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