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Our Services

As a premier flat roofing contractor in Washington, DC, we offer a comprehensive suite of services that cater to the diverse and often complex needs of our city’s architectural landscape. Fully licensed, certified, and insured, our expertise spans across five key areas:
Flat Roof Repair, Roof Replacement, New Roof Installation, and Roof Maintenance and Upkeep.

Flat Roof Repair & Waterproofing

Our repair services are exhaustive, addressing issues from wear and tear to improper installations. We specialize in four main types of repairs: Grade Changes & Continuous Flow for effective water drainage, Counter-Flashings & Spanning Metals to prevent water infiltration, Partial Overlays & Recoatings to enhance durability, and Proper Sealant Applications for a watertight seal. We are also adept at rectifying mistakes made by other contractors, ensuring your roof is in optimal condition.

​Roof Replacement or Overlay

For new constructions or major renovations, our new roof installations are designed to meet modern standards while respecting the architectural integrity of the area. We work closely with other building systems, including mechanical and photovoltaic energy systems, to ensure seamless integration.

When a roof reaches the end of its lifespan, we offer full replacement services. Our team conducts a thorough assessment to determine the best course of action, taking into account the unique challenges posed by Washington, DC’s historic buildings.

​Roof Upkeep and Consultations

Regular maintenance is crucial for extending the lifespan of your roof. Our maintenance services include regular inspections, cleaning, and minor repairs to prevent major issues down the line.

Washington, DC is a city rich in history, and many of its buildings are historic landmarks with flat roofs not initially designed for modern mechanical systems. This often requires us to coordinate with various building systems and assemblies, a task we are well-equipped to handle due to our extensive training and hands-on experience.

WHY DUPONT ROOFING LLC?

In summary, whether you’re dealing with a historic building or a modern structure, our services are tailored to meet your specific needs. From flat roof repairs to new installations, from replacements to regular upkeep, we offer a one-stop solution for all your roofing needs in Washington, DC. With our unparalleled expertise and commitment to quality, you can trust us to deliver exceptional results, every time.

SEE WHY WE ARE THE GO TO ROOFERS
FOR HISTORIC WASHINGTON, DC HOMES

Variety of roof types visible on a single building structure

A Variety of Roof Types in Just One Building – Part I

Variety of Roof Types in a Single Building Explained Today we’re looking at a case studio based on one of the many thousands of historic buildings here in Washington D.C.  Like many typical DC row homes, this particular building happens to have a mansard roof.  This particular building though is

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Leaking gutter causing water damage on a historic building facade

Leaking Gutter at a Historic Building

Leaking Gutter Issues Affecting Historic Structures This past week, we looked at an example of a water table installed at a historic building facade. Today we’re looking at a similar type of building but it’s different. This particular building has a cornice that wraps around the facade, not just at

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Water Tables on Top of Cornices - Part II

Water Tables on Top of Cornices – Part II

the Role of Water Tables on Top of Cornices This past week, we took a look at a large architectural cornice at the top of a historic masonry facade.  We talked about a few concerns with the upkeep and maintenance of this element, in terms of roofing. There are concerns

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