Window Installation in Sterling, Virginia

Deciding to replace old windows can be one of the most beneficial upgrades you can make to your home. Whether you’re performing a restoration, enhancing energy efficiency or simply changing your home’s design, windows are often the starting point. There are many benefits to window replacement, from adding more light to saving on energy costs to providing an extra layer of security.

Since 1993, Sunshine Contracting has been the most trusted and reliable window installation company in Sterling and throughout Loudoun County. Our comprehensive selection of windows provides all the options you need regardless of your home improvement goals. By choosing Sunshine Contracting as your window replacement contractor, you’ll know you’re receiving the best warranties, the most outstanding service and the highest-quality materials.

Customer Reviews

At Sunshine Contracting, customer satisfaction has always been our top priority. We’re dedicated to the success of every project, and this commitment to excellence has helped us earn outstanding reviews from previous customers.

“The quality of their work has been excellent. They have demonstrated a commitment to doing things right and making sure the customer is happy with the result. Our experience with Sunshine Contracting's high quality and high value home repair/update products and installation services is why we continued to use them when we moved to our new home.”

Ed W.

“We were very happy that we chose Sunshine Contracting for our Hardie siding and gutter installation. Sunshine is one of the few James Hardie Elite Preferred contractors in the area, and they beat the other Elite Preferred installer by about 25 percent on their estimate. More importantly, Sunshine did an awesome job with the actual siding project, board and batten siding on a mid century modern Deck House.”

Tim Q.

“Quality work and professional team. I looked around the Stafford area for someone that could replace two of my patio doors with quality doors and Sunshine exceeded my expectations, and trust me, I have very high expectations. Highly professional from start to finish. The gentleman that installed the doors was very meticulous and ensured every minuscule adjustment was perfect. I will use them again for any of my home's needs. Lastly, it is not easy to find quality contractors like Sunshine provides.”

Bradley G.
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