
Are you looking for someone to help you replace your windows to improve energy efficiency? Are you moving into a new home or office and want brand-new windows?
No matter the case, Milcon Design and Build has spent years building our reputation, and we are proud to offer high-quality, locally-driven services in Northern VA and the entire DMV area.
We have a simple philosophy, “Only the absolute best will do,” and we stand by it. We are fully focused on quality and integrity, ensuring customer satisfaction across the board.
We know you can pick from dozens of Springfield window installation services, but we want to steer you in the right direction.
Most remodeling companies have several hidden costs that they show you only when they send you the bill. Not us. Milcon’s philosophy is rooted in trust. We believe you cannot do anything with your customers until you prove they can trust you. That’s why we offer no-pressure consultations and estimations for free.

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.

Inefficient windows can skyrocket your bills. The cold draft constantly circulating through poorly insulated windows will make you check your thermostat too often. Our energy-efficient replacement windows are designed to save money and enhance energy efficiency.
Customers can also choose Energy Star-rated options, ensuring maximum quality, durability, and longevity.
If you are looking for bay or bow windows to enhance the style of your home and improve its curb appeal, you’ve come to the right place. Our experts understand this style and will help you find the right solution to add as much space and natural light as possible. If that isn’t enough, we also offer decorative glass options to elevate the aesthetic of your home even further.
There are certain instances where standard measurements just won’t cut it. That’s why we offer custom windows. These tailored solutions will fit into your space like a glove. The goal of custom windows is to enhance curb appeal by a lot, but there’s also added security, which will add to your property’s overall value.
You are now properly informed about our services. We can move forward and examine the main benefits of choosing Milcon as your go-to window solution in Springfield, MO.
As we have already outlined, there are many benefits of upgraded windows, especially during harsh weather events, which do happen in this area. We managed to group them into four distinct categories.
Another benefit customers can expect from us is our no-pricing-games policy. We are different from other contractors in the area, so call us today, and let’s talk specifics.
When replacing or installing new energy-efficient windows, property owners tend to realize that they can use the situation to upgrade a few other things in their home or office. Here are some of our services that you can consider.
With our premium ProVia entry and patio doors, you can improve the security and energy efficiency of your space even more and add a sense of style while you’re at it.
Give your home’s exterior a fresh and stylish look with our low-maintenance, long-lasting vinyl siding solutions.
With our premium ProVia entry and patio doors, you can improve the security and energy efficiency of your space even more and add a sense of style while you’With our full-service exterior remodeling solutions, you can spruce up your entire home. We offer everything: roofs, windows, doors, gutters, you name it. We are here to fully transform your Springfield home and make it stand out.
We are certified industry pros, and we’ll prove it by explaining our process in detail.

Let’s dive into how our company approaches every single job. It’s a simple, 4-step process.
Give us a call, and let us prove our worth to you by discussing various financing options.
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!
Are you still not convinced? To conclude, we will outline three reasons why we are different from our competitors.
This is a locally owned and operated establishment. We are proud to serve our fellow neighbors in the entire Southwest Missouri area. For all our customers in Springfield and beyond, we offer tailored solutions that will match your specific needs.
We offer competitive pricing. With us, there are no middlemen who only serve to crank the price up,so all savings are passed on to you, the customer.
We have a set of core values, and we follow them blindly. Our business is built on a strong foundation of integrity, respect, and full dedication to absolute excellence.
Do you need standard awning windows or casement windows? Do you want bay or bow windows? Or, do you perhaps need shaped windows, double-hung, or sliding windows? You name it, we have it!
This depends on several factors. Generally speaking, when we have the measurements and the windows are ready for installation, the process itself takes about 30 minutes per window.
They stabilize your home’s temperature by creating a seal between it and the outside. When no cold or hot air can enter your home, you won’t need to use your heating or cooling devices as often, and your electric bills will go down.
Of course! We offer custom window solutions. Give us a call, and we’ll meet and take the measurements. Then, you will get custom decorative and specialty windows.
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!