Commercial Roof Installation

Two workers in safety gear on a rooftop, installing roofing material against a blue sky.

Expert Commercial Roof Installation in Alexandria, VA

When your commercial property needs a new roof installation, experience matters. With more than 100 years in the industry, Virginia Roofing combines craftsmanship, union-trained labor, and technical expertise to deliver superior roofing solutions. Whether it’s a warehouse, municipal building, or retail space, we install with durability and performance in mind.

Commercial Roof Design

Virginia Roofing specializes in commercial roof design that emphasizes durability, energy efficiency and weather resistance. Our designs incorporate reliable materials and techniques, including flat or low-slope systems, which are commonly used for commercial buildings. With decades of experience, Virginia Roofing ensures each project meets industry standards while minimizing long-term maintenance costs for clients.

Commercial Roof Design

Virginia Roofing specializes in commercial roof design that emphasizes durability, energy efficiency and weather resistance. Our designs incorporate reliable materials and techniques, including flat or low-slope systems, which are commonly used for commercial buildings. With decades of experience, Virginia Roofing ensures each project meets industry standards while minimizing long-term maintenance costs for clients.

Special Penetration Considerations and Project Requirements

Professional Flashing and Sealing for Rooftop Equipment

Adding HVAC units, skylights, or restaurant exhaust fans to your building? Virginia Roofing brings decades of experience as a licensed, manufacturer-certified contractor specializing in the installation and flashing of rooftop equipment. Our expert service ensures:

  • Watertight, leak-resistant roof penetrations


  • Code-compliant, manufacturer-approved details


  • Warranty protection and documentation support

Choosing an experienced contractor minimizes long-term risks. At Virginia Roofing, we ensure your roofline stays visually clean, fully functional, and securely sealed for lasting protection.


From restaurants and retail spaces to offices and government buildings in Alexandria, VA and beyond, we work with property managers to complete rooftop installations efficiently and with minimal disruption.

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We install and Seal Systems for:

  • Skylights, vents, roof drains, roof curbs, pitch pockets


  • Gutters, anchors, exhaust fans, grease guards


  • Satellites, walkways, solar panels, ducts, and more

Post-Installation Roof Care

Virginia Roofing provides comprehensive post-installation roof care to ensure the longevity and performance of commercial roofing systems. Our services include regular inspections and prompt repairs to address wear and damage. We also have a comprehensive preventative maintenance program tailored to meet your needs. This proactive approach helps clients avoid costly issues and extends the lifespan of their roofing investment.

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Post-Installation Roof Care

Virginia Roofing provides comprehensive post-installation roof care to ensure the longevity and performance of commercial roofing systems. Our services include regular inspections and prompt repairs to address wear and damage. We also have a comprehensive preventative maintenance program tailored to meet your needs. This proactive approach helps clients avoid costly issues and extends the lifespan of their roofing investment.

View Packages

Why Choose Virginia Roofing for Roof Replacement?

  • Over 100 Years of Proven Commercial Roofing Experience


  • Fully Licensed, Bonded, and Insured Across the Washington–Baltimore Metro Region


  • Certified by Top Manufacturers for Warranty-Eligible Installations


  • Skilled in Complex Urban Projects, Including Rooftop Gardens and Mechanical Upgrades


  • Dedicated Estimators and In-House Project Managers for Seamless Execution


  • Union-Trained Crews Focused on Safety, Precision, and Quality

We go beyond roof installation – delivering long-lasting solutions that protect your property and your investment.

Commercial Roof Installation FAQs

  • When should a commercial roof be replaced?

    You should consider roof replacement when a professional contractor has completed a roof assessment and determined that the roof has deteriorated beyond repair.

  • How much does it cost to reroof a commercial building?

    It depends. The cost for a commercial reroof changes based on these factors: building size, location, labor, materials, and budget constraints. The cost weighs heavily on the type of roofing membrane you choose for your building.


  • How long do commercial roofs last?

    It is difficult to predict how long your commercial roof will last because buildings experience aging factors differently. However, proactively maintained roofs last an average of 8 years longer than reactively maintained roofs.


  • How long does it take to replace a commercial roof?

    As you might expect, the answer is it depends. The time it takes to complete your roof replacement will change based on these factors: demo, insulation layers, waterproofing, and the amount of rooftop equipment.


  • What is the best replacement roof?

    The best roof type for your replacement depends on the building's intended use and any cost considerations. A dedicated Estimator will examine your existing roof system and make a recommendation.


  • What is the longest-lasting roofing material?

    The longest-lasting commercial roofing material is EPDM. All roof membranes can last beyond their intended life if you perform regular roof maintenance. 


  • What are the best roofing shingles?

    The best architectural shingles are CertainTeed's Landmark® shingles. They are durable and available in numerous colors and color blends.


  • What is the most energy-efficient roof type?

    You can keep your heating and cooling system at its peak with an energy-efficient roof membrane. A white EPDM roof reduces cooling costs in the Summer. A black EPDM roof lowers heating costs in the Winter.


  • Does a new roof add value?

    Yes. Ridding your roof of an old, deteriorating roof increases value substantially. Your dedicated Estimator will recommend a roofing membrane that will add the most value to your property.


  • Is TPO better than EPDM?

    Both TPO and EPDM are high-performing roofing membranes, however, EPDM is typically the better choice for commercial buildings. An EPDM roofing membrane is durable and the best choice for these building types: retail, warehouse, office, and hospital.


  • Who makes the best TPO roofing?

    Carlisle SynTec is a global leading commercial roofing manufacturer known for long-term performance TPO roofing membrane, components, flashing, and accessories.


  • How do I protect my new TPO roofing system?

    Protect your roof by performing roof maintenance. Walk your roof regularly, checking gutters and drains for debris. Annual roof inspections are highly encouraged for commercial buildings.


  • What is the best roofing material for a low-pitch roof?

    Rubber roof membranes are the most popular choice for low-pitched roofing systems. A roofing Estimator will help you choose between an EPDM, PVC, and TPO roof membrane.


  • Why is my commercial roof leaking?

    It depends. A roof inspection reveals leak-causing damage such as loose membrane, open flashing, and clogged roof drains.


  • What is the most common cause of roof leaks?

    Leaks are caused by roof damage that happens when the roof is walked on, punctured, or neglected. You might be surprised at how much dirt and leaves accumulate on your roof's surface. Maintaining your roof will significantly reduce roof leaks.


  • How do I find a leak in a commercial roof?

    There are a couple of ways to find a roof leak in a commercial roof. Ultimately the method used depends on your roof type and the suspected damage. The roofers might perform a water test to locate the source of a roof leak.


  • Do flat roofs leak more?

    Yes, flat roofs experience more leaks than shingle roofs. Flat roofs are easily walkable and susceptible to damage from foot traffic. Protect your rooftop with roof walkway pads around high-traffic areas like HVAC units.


Virginia Roofing Corporation logo: cartoon roofer holding a ladder, green and white circle.

Ready to Install a New Commercial Roof? Let’s Discuss Your Options.

Whether you're scheduling a roof installation, upgrading rooftop equipment, or overseeing a multi-unit facility, Virginia Roofing offers dependable expertise in Alexandria, VA. With more than a century of experience, certified crews, and a strong focus on leak prevention, we deliver commercial roofing systems built for durability and performance.

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