Serving Greater Washington, D.C.

Contact our Washington, D.C. showroom for your next home improvement 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. Metro area including North Virginia and Maryland.

Great Day Improvements
7345 Lockport Place
Lorton, VA 22079
License #: DC 420214000016;
VA 2705157137; MHIC #132308

Contact Information
Local: 703-496-3019
Toll free: 800-230-8301

Hours of Operation


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
  • Qualified Remodeler Top 500 of 2016 (#21)
  • Qualified Remodeler HIP of 2016 (#18)
  • Qualified Remodeler Top 500 of 2015 (#22)
  • Qualified Remodeler HIP of 2015 (#19)
  • EPA Lead-Safe Certified Firm
  • Angie's List
  • NARI
  • 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're proud to offer tailored home improvement solutions. From paving a sidewalk to a complete home renovation make over, complex sunroom installation or large commercial project, you can count on Great Day Improvements for all your renovation needs.

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