Service Areas

Sterling, VA, Design And Build
Services You Can Rely On

Let Milcon Design & Build Help You
Envision A Picture Perfect Home

Is your Sterling, VA, home missing something? Maybe your windows are old and making your entire home look drab – or your roof is leaking and slowly starting to make the paint bubble on the walls.

If this is the case for you, it is time to consider what you can do to make your home look beautiful and be all you ever wanted. Luckily, we are here to make all your design and build dreams happen!

Our Services

At Milcon, we provide valuable services that enhance your home’s beauty while ensuring energy efficiency and strength.

Roof Replacement

Here at Milcon Design & Build, we only work with the best roofing materials. That is why we offer GAF Lifetime Roofing Systems that will enhance the beauty of your home while handling the weather in Loudoun County.

The GAF Lifetime Roofing System encompasses all the necessary materials to ensure a solid roof. And you will find several color choices to enhance your home as you see fit.

The beauty of working with the GAF systems is that the manufacturer has trained us to install these to ensure they work correctly for your home. In addition, since we work directly with the company, we often can offer these systems at a much lower price, sometimes as much as 30% lower than competitors.


The siding on your home is not only a way to protect the interior of your home but also a way to show your personality and taste. All siding is not made to be the same, so we only use CertainTeed vinyl siding that has been tested to withstand the weather we see in our area.

In addition to handling the weather, it is maintenance-free, a plus for many of our customers. With over 40 colors, you can creatively showcase your personality via your home and up your curb appeal.

Window Replacement

Windows are not meant to last forever; over time, they become less energy-efficient. We work with RJT Industries to provide windows for homes in the area. Why RJT Industries?

They make their windows right here in Virginia, and we love supporting local businesses. The quality of their windows is perfect for our climate, and they have numerous designs to ensure you find something perfect for your home.


Whether you need an entry door or a patio door, we can help hang your new door so it fits snugly and helps your home to be energy efficient. We work with ProVia doors, which are beautiful in design and strong – the perfect combination for any door replacement in your home.


We also handle the trim work when hanging new windows or doors for your home. These small touches make all the difference in the end in how the window or door looks. Plus, we believe the trim is just as much a part of your home as anything else, and when we finish your project, we want it to be beautifully finished.


The gutters of your home are often not given a second thought, but they have the critical role of ensuring water is directed away from your home. When your gutters need replacing, we offer 5- and 6-inch seamless aluminum gutters that will hold up against our weather and look gorgeous on your home.

Why Do People Choose To Work With Us?

When it comes to working with anyone in the Sterling, VA, area, we promise a few things to our customers.

  1. For one, we promise honest service that you can rely on. We will not “blow smoke,” so to speak, at you. We will be upfront about what we think you need and all that entails.
  2. Two, we have zero tolerance for pushy sales tactics. You will never feel we pressured you into doing something you are not ready to do with your home. It is unethical how so many businesses try to upsell every customer that comes to them.
  3. Lastly, we promise customer service with a smile. We are never too busy to answer your questions, whatever they may be, and we want to do this with a smile.

Overall, our dedication to our customer service and our ability to ensure no sales tactics and honest opinions is why so many people work with us and recommend us to their friends and family.

We want to make the design and build process so easy that it feels like no stress on your shoulders!

FAQs About Design And Build Services

Do you offer warranties that last?

We partner with industry leaders in exterior services materials – GAF for unbeatable roofing, local DMV RJT for replacement windows and patio doors, ProVia for beautiful entry door systems and CertainTeed for durable vinyl siding.

So you can be certain that our manufacturer warranties are the top of the line.

Many come with lifetime transferable warranties.


Because when you work with the best, you get the best.

How do I prepare for my exterior remodel?

Aside from your initial call and having owner Matt Kavanah take care of your zero-pressure consultation, and prepare your home for the install… not much!

It’s a process designed to leave you feeling no stress yet in the know about the entirety of your exterior remodel – every step of the way.

How long does it take to install James Hardie siding?

The timeframe for siding installation depends on several factors, including the size of your Northern VA or Maryland home and the type of James Hardie siding you've chosen.

While the actual installation timeframe can vary, you can expect the process to be efficient and managed by experienced professionals.

Custom orders or specialty siding types may extend the timeline due to manufacturing lead times, though we at Milcon always do our best to stay prudent and on time no matter the project's uniqueness.

What areas does Milcon Design & Build serve?

We’re proud to call ourselves your local DMV and Northern VA exterior services contractor.

What Makes the Milcon Design & Build process so special?

Our process is our umbrella way of doing things for all of our DMV exterior remodels. It’s comprehensive yet simple and streamlined.

It’s designed to keep you feeling no stress yet in the know throughout your remodel...

Oh, and did we mention that our process even includes a fancy 3D rendering of the work to be done on your Northern VA or DMV home?

It’’s in our name, after all… Design & Build.

We don’t just show up, drills a drillin’, ready to tear things apart.

Our pragmatic, measured approach ensures your project goes off without a hitch and leaves you more than satisfied.

Get A FREE, 30-Minute Quote (Yep. Just 30 Minutes!)

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!


Wait! You haven’t requested your FREE 30-minute quote yet!*

No pressure. No hassle. No obligation.

*On any roof replacement project. All final quotes sent through email correspondence.

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