

Matt Kavanah is the owner of Milcon Design & Build. He has 20+ years of experience and has a simple philosophy, only the absolute best will do. On every single job. For every single customer. Down to every single detail.

If you need a new roof installation in Sterling, look no further than Milcon Design & Build. Our expert team specializes in installing high-quality roofing systems for residential and commercial properties. We use top-of-the-line GAF roofing materials and advanced techniques to ensure a durable and long-lasting roof that will protect your property for years.
Milcon Design & Build has a superior value to large-scale national companies… but we NEVER try to win jobs by offering low-quality materials at the lowest price. In other words, we’re not necessarily the cheapest. We simply offer the best products and the best workmanship… at the best VALUE.
Has your roof been damaged by severe weather or wear and tear over time? Our roof repair services in Sterling are designed to address any issues and bring your roof back to life. From minor repairs to addressing leaks and storm damage, our skilled technicians have the knowledge and expertise to get the job done right the first time.
Unsure if you need roof repair services or a new roof? Look for indicators like missing or damaged shingles, leaks, water stains on your interior ceilings or walls, or granules from shingles in your gutters. Our team can provide a comprehensive inspection to accurately assess your roof’s condition.


If your existing roof is showing signs of wear and tear but doesn’t require a full replacement, reroofing may be the solution for you. Milcon Design & Build offers comprehensive reroofing services in Sterling, providing an effective and efficient way to refresh the appearance and extend the lifespan of your roof.
Whether it’s adding a new layer of shingles over the existing roof or performing necessary repairs before reroofing, we’ll ensure that your roof receives the attention it deserves.
Reroofing can help address issues such as:
Reroofing typically involves installing a new layer of roofing materials, such as shingles, over the existing roof. This can help refresh the appearance of the roof and extend its lifespan.
Reroofing is often done when the existing roof is nearing the end of its lifespan or showing signs of widespread wear and tear. It can address issues such as aging shingles, minor leaks, or general deterioration.
Reroofing can be a cost-effective alternative to a full roof replacement, as it allows you to add a new layer of roofing materials without completely tearing off the existing roof.


Roof repair services focus on addressing specific issues or damage to the existing roof. This could include repairing or replacing damaged shingles, fixing leaks, or reinforcing weak areas of the roof.
Roof repair services are typically targeted at specific areas of the roof that require attention. They may be necessary in response to storm damage, wear and tear, or other issues.
Roof repair services aim to prolong the life of the existing roof by addressing isolated issues and preventing them from worsening over time. They may be performed as needed to maintain the roof’s integrity.
Sterling is a vibrant suburb of Washington, D.C., located in Loudoun County with a population of about 31,058 residents. Known for its dense suburban feel and abundance of amenities, Sterling is considered one of the best places to live in Virginia. Residents enjoy a variety of restaurants, coffee shops, parks, and other recreational opportunities, making it an ideal place to call home or start a business.

Ready to enhance the protection and beauty of your property with our roofing services in Sterling, VA? It would be an honor for us to bring you quality, locally-driven roofing services with heart and genuine care.
Contact Milcon Design & Build’s owner and founder, Matt Kavanah, directly at (703) 581-2761 to schedule a consultation and receive a free estimate. Let our experienced Sterling roofing contractors provide you with the reliable, high-quality roofing solutions you deserve.
Posted on Google Nolian PapaTrustindex verifies that the original source of the review is Google. Excellent work, and the estimating scheduling process was very quick and hassle free. I'm really glad I went with Milcon.Posted on Google Jonelle HillearyTrustindex verifies that the original source of the review is Google. We’re so pleased to be able to provide this review of our recent window replacements project with Milton Design and Build- all in all, truly a 5 star event. Owner, Matt Kavanah, followed up on a Thumbtack request for proposals with a home visit to see what we needed and how Milcon Design and Build could help. Matt explained the process, how long it would take to order and get ready for the installation, and most importantly, what we could expect as performance from the ProVia window and door products recommended for our home. Matt indicated that he would have Project Manager, Josh, come out and take precise measurements to make up the order, but for the proposal pricing he was able to give us a very competitive bid based on our conversation that day. We kept coming back to Matt’s straightforward conversation and the value of the windows we would be ordering. The price and quick time-to-install just sealed the deal. Matt made some key suggestions that, after our installation today, proved to be great advice. One of the reasons we chose to do a window replacement now (January) was the cold spots in both our primary bedroom and dining room - opposite ends of our house. Even upgraded HVAC hadn’t been able to overcome the heat loss. Tonight, with a new package of high-efficiency thermally broken windows and sliders installed, we’re actually turning the thermostat down because we’re warm! Thank you to Matt, Josh, Luis, Martin, and the rest of the crew for a great job, for explaining all the tips and techniques to get the most out of the new windows and front door, as well as to keep them looking beautiful for years to come! Thank you, Milcon Design and Build for working with us on this purchase… you guys are awesome!Posted on Google Thomas VolkTrustindex verifies that the original source of the review is Google. Outstanding! After weeks of countless window contractor interviews, we found the perfect company. Matt at Milcon, with his many years of experience, provided us with detailed product descriptions to meet our environment requirements, that included muffling the Ashburn Data Center and air traffic noise. They installed over 40 windows in two days! Most important, my wife is so happy with our choice.Posted on Google Willmer RomeroTrustindex verifies that the original source of the review is Google. I went to Milcon for a quote and they came in under the competition. The staff was super professional and did everything I asked for. The team was quick and was done within hours. I would go back for any future projects.Posted on Google Bernadette RahmaniTrustindex verifies that the original source of the review is Google. Matt was very professional, gave us very good advice for the 2 massive doors we had to replace. We were very happy with the process, the execution of the project and the products. We had a very pleasant experience with Matt and his installation crew. Thank you so much.Posted on Google Meghan KavanahTrustindex verifies that the original source of the review is Google. Excellent customer service. Quick install. Impeccable job. Would highly recommend!Posted on Google Josh EvansTrustindex verifies that the original source of the review is Google. Right on time. Matt and his team did what they said they were going to do when they said they were going to do it. Painless process from start to finish. I had a new roof in about 48 hours. Highly recommended.Posted on Google Justin HoughtonTrustindex verifies that the original source of the review is Google. We were in need of a roof replacement so we threw out a few requests on Thumbtack and I’m glad we did since it brought us to Milcon Roofing. Matt reached out very quick and if I recall correctly came out the following day to discuss options. He wasn’t pushy or trying to just sell me something. It was clear he has been in the business for years and more or less just informed me of my options. He also noted his crew gets certified on the roofing systems which we really liked. So we needed up asking for a quote and it was very fair and competitive. I will say, Matt was very professional, quick to reply to texts, his quote was very fair, and his crew was on time and knocked out the job out in less than one day. Oh, also their clean up was outstanding. While I hope to never see Matt again (since the roof will last many more years than we should be here) I would 100% call him back for any future work here or at our next home. If you need a new roof, give them a call, you won’t regret it!Posted on Google Jorge Manuel TrasmonteTrustindex verifies that the original source of the review is Google. We hired Milcon Roofing, Design & Build for replacing the original aluminum siding on our house. Matt took the time to explain different options and we opted for the insulated siding. Matt was very easy to work with and communicated with us through the entire process. The work crew did an great job despite some days with rough weather. We are very happy with the results, less cold drafts, a reduction in noise and a more modern looking exterior. Everything looks great! Can't recommend enough.Posted on Google Kristina MilbergTrustindex verifies that the original source of the review is Google. Matt and his team were great to work with, would recommend!
Ready to “cut the fluff” and get a no-nonsense Northern Virginia exterior remodel starting with a stress-free, 30-minute, no-obligation quote from the owner himself?
Then call us at 703-581-2761 or fill out our hassle-free form to schedule your free quote today!