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Service Areas


Gainesville Roofing

At Milcon Design and Build, we pride ourselves on being a top-tier Gainesville roofing company, dedicated to serving Northern VA and the DMV area. Our commitment to quality and customer satisfaction sets us apart from the competition, making us the go-to choice for all your roofing needs.

Residential Roofing in Gainesville VA

Milcon Design & Build provides top-quality residential roof replacement using GAF Lifetime Roofing Systems. These roofs are designed to protect your home for many years and come with a Lifetime Warranty on materials and installation. We offer up to 30% lower prices than national companies by keeping costs down and using efficient practices.


Our service starts with your first call and includes a detailed inspection, precise measurements, and a no-pressure estimate. Expert professionals handle the installation, ensuring high standards.

Signs You Need Roof Replacement:

  • Missing, curled, or buckled shingles
  • Shingles with moss, algae, or tar streaks
  • Shingle granule buildup in gutters
  • Water stains, mold, or rot in the attic

Commercial Roofing in Gainesville

At Milcon Design & Build, we offer top-quality commercial roofing services for businesses in Northern Virginia and Maryland. We use trusted materials from brands like GAF and GACO. Our certified experts provide excellent installation and service. GAF’s TPO roofing is durable, UV-resistant, and energy-efficient. GACO’s roof coatings add protection against leaks and weather damage.


We value honesty and transparency, avoiding pushy sales tactics. Our prices are fair, and we deliver high-quality work. As a locally-owned business, we are deeply connected to the community and provide personalized service.


If you see signs that your commercial roof might need replacement—like missing or damaged shingles, moss or algae growth, granule buildup in gutters, or water damage in the attic—contact us. We also offer flexible financing options to make the process more affordable.


GAF Commercial Roofing Systems

GAF is a trusted name in the commercial roofing industry with over 130 years of experience. Their roofing systems are built to withstand tough weather conditions, providing excellent protection for your property. Here are some key GAF roofing solutions we offer at Milcon Design & Build:


GAF TPO (Thermoplastic Olefin) Roofing:

This roofing system is strong and resists UV light and chemicals. It reflects sunlight, helping to keep your building cool and lower energy costs. It’s a sustainable and cost-effective choice.

GAF EverGuard® PVC Roofing:

This system provides great protection against chemicals and fire, making it ideal for many commercial buildings. It also reflects sunlight, improving energy efficiency.

GAF Roof Coatings:

Our roof coatings extend the life of your roof and protect it from leaks and severe weather.



Roof Repair in Gainesville

At Milcon Design & Build, we know how important your roof is in protecting your home. Sometimes, a roof repair is all you need to extend its life and avoid the cost of a full replacement.

Our Roof Repair Process:

  1. Free Inspection: We start with a free, detailed inspection to find any issues with your roof.
  2. Diagnosis & Plan: We identify the problem and decide on the needed repairs. If a replacement is needed, we provide a detailed quote and deduct the inspection fee from the replacement cost.
  3. Quick Repairs: If repairs are needed, we quickly fix issues like:
    • Replacing missing or damaged shingles
    • Sealing skylights
    • Caulking roof penetrations
    • Refitting pipe collars
    • Securing lifting shingles

    These repairs can make your roof last much longer!

Other Services We Offer in Gainesville Virginia

At Milcon Design & Build, we provide don’t just do roofing, we offer home improvement services to make your home better.

Replacement Windows:

High-quality, energy-efficient replacement windows tailored to the Northern VA and MD climate, with competitive pricing, customizable options, and a professional installation process backed by a lifetime warranty

Entry Doors:

Top-quality ProVia entry doors that combine security, energy efficiency, and customizable options with a professional installation process, backed by a comprehensive lifetime warranty.

Vinyl Siding:

We offer CertainTeed vinyl siding that is easy to maintain, long-lasting, and available in many styles and colors

James Hardie Siding:

Long-lasting, low-maintenance siding that withstands harsh weather conditions and maintains its fresh looks.


Why Choose Milcon Design and Build?


Personalized Treatment:

You deal directly with me, the owner, for a personalized and hassle-free experience.

Top-Quality Materials:

We use the best materials like GAF asphalt shingles, known for their durability and long-lasting performance.

Expert Roofing Contractors:

Our team comprises certified professionals with decades of experience in the roofing industry.

Core Values:

Milcon Design and Build is built on a foundation of integrity, trustworthiness, and accountability.

Schedule Your No-Pressure Estimate

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So Why Choose Milcon Design & Build?

Because We’re Northern VA & MD’s “Do Whatever It Takes, Only The Best Will Do” Roofing And Exterior Contractor.

At Milcon Design & Build, we have a simple philosophy: Only the absolute best will do. On every single job. For every single customer. Down to every single detail.

That’s not an empty promise. It’s not lip service.

It’s the etched-in-stone company code we follow day in and day out. Zero exceptions.


My Story

For years, I worked my way up the ranks in a major home remodeling company. And I had it made. I was earning very good money and leading and managing teams of people.


Which, ironically, is why it became not so good for me.


I often thought, “Why do I have to wear a suit and a tie to sell a roof? No one is replacing a roof in a suit. It’s a blue-collar job!”


That and a million other reasons led me to start my own venture rooted in core values I could stand behind. Values like integrity, trustworthiness, and accountability, to name a few. Qualities that will show up on YOUR stunning (and cost-effective) exterior remodel.


So to wrap up what could be a much longer letter, I’ll say this:


It would be an honor for us to bring you a quality, locally-driven, above-and-beyond exterior remodel with heart and genuine care.


And to prove my commitment to you – here’s my PERSONAL cell number, where you can CALL ME DIRECTLY.



Warm regards,

Matt Kavanah
Owner and Founder
Milcon Design & Build


Our Testimonials

See For Yourself How Pleased Our Clients Are

Benjamin G.


Definitely would recommend 10 out of 10

Whole process was genuine and professional. Would not consider choosing another company after this great experience. Definitely would recommend 10 out of 10. Install crew was polite and extremely hard working. Super happy with our new windows!!!

Getting quotes for other jobs from this company because of the terrific workmanship.

Alex L.


We would recommend Matt and his team to anyone

Matt’s team recently installed new windows through our entire home. Matt took the time to understand our needs and recommend the best window for us at a great price. Took less than a month from when they ordered the windows to install date. He had a whole team arrive for installation and was able to install everything in one day. Any concerns were quickly addressed by Matt. We would recommend Matt and his team to anyone looking for good quality work at a fair price.

Jonathan W.


Service and install were absolutely top notch!

I can confidently recommend Milcon D&B to any of those in search of a top tier remodeler. I recently had my roof replaced and although I learned a lot about the materials I ultimately chose to go with them because of Matt. He explained the options clearly and extended my budget substantially further then some other local companies I had met with. Service and install were absolutely top notch!

Iris T.


Can’t ask for a better experience

Great experience end to end. Special order patio door came in and was installed in the planned timeline, received updates and the installation crew did a great job. It is an older house, so the door had to be retrofitted and the original opening wasn’t quite level. They balanced the door and screen so they run smoothly. Can’t ask for a better experience.

Kerri R.


I highly recommend Milcon Design & Build

Matt with Milcon Design & build was extremely impressive with his low pressure professional approach during our estimate visit. He worked with us to change the design a few times to make it perfect. He kept in touch with us during the production of the door, and scheduled a convenient time for installation. The installation crew was on time, courteous, and very professional. I highly recommend Milcon Design & Build.

Ann C.


Professional, communicative and very knowledgeable

The team did a great job replacing the siding and recaulking all the windows. They were on time, hard working and cleaning up nicely. Matt, the owner, was professional, communicative and very knowledgeable. The price was reasonable. Highly recommended!



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!

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