Choosing the right contractor for your commercial roofing project isn’t just about getting the lowest bid—it’s about finding someone you can trust to protect your investment. At Master Roofing & Siding, we’ve been serving businesses in Alexandria since 1974, so we know how overwhelming it can feel when you’re trying to figure out what to ask a commercial roofer. After all, this is your building’s first line of defense against the unpredictable Virginia weather—wind, hail, and everything in between.
That’s why we’ve put together this list of the most important questions for a commercial roof contractor. Whether you’re fixing up a small office or re-roofing a multi-family complex, these seven questions will help ensure you’re hiring the right team for the job.
1. Are You Licensed and Insured?
Let’s start with the basics. If a commercial roofing contractor isn’t properly licensed or insured, that’s your sign to walk away.
Why This Matters
A roofing license ensures the contractor meets all state and local requirements to work on commercial roofs. Insurance protects you from liability if something goes wrong—like property damage or worker injuries—during the project.
How Master Roofing & Siding Helps
We’re fully licensed and carry both liability insurance and workers’ compensation. That means if anything unexpected happens, you’re protected. It’s one of the many ways we prioritize our clients’ peace of mind.
2. What Experience Do You Have With Commercial Roofing Projects?
Not all roofers are created equal—especially when it comes to commercial projects.
Experience Matters
Commercial roofing comes with its own set of challenges: flat roofs, specialized materials, and often tight deadlines to minimize business disruptions. You want to hire a contractor who knows these challenges inside and out.
Our Expertise
With nearly five decades in business, Master Roofing & Siding has worked on a variety of commercial projects, including churches, small office buildings, and multi-family units. We handle materials like EPDM, modified bitumen, metal roofs, and asphalt shingles, ensuring the right solution for your property.

3. Can You Provide References or Case Studies?
Any reputable commercial roofing contractor should be proud to share examples of past work.
Why This Is Important
Hearing from previous clients gives you a clearer picture of what to expect. Did the contractor stick to deadlines? Were there any hidden costs? How’s the roof holding up today?
How We Stand Out
We’ve been in business long enough to have installed multiple roofs for the same customers—sometimes decades apart. Our clients trust us to get the job done right, and we’re always happy to share references or examples of our work.
4. What Roofing Systems Do You Offer and Recommend?
A one-size-fits-all approach doesn’t cut it in commercial roofing.
Making Informed Choices
Depending on your building’s design, usage, and budget, certain materials will be better suited than others. A good contractor will explain your options and recommend the best solution for your specific needs.
Our Material Expertise
At Master Roofing & Siding, we offer a variety of commercial roofing systems, including:
- EPDM Roofing: Durable and weather-resistant, perfect for flat roofs.
- Modified Bitumen: Strong and flexible, ideal for high-traffic rooftops.
- Metal Roofing: Long-lasting and energy-efficient.
- Asphalt Shingles: A cost-effective option for certain commercial buildings.
We’ll walk you through the pros and cons of each system, so you can make an informed decision.
5. What Is Your Process From Estimate to Completion?
Nobody likes surprises—especially when it comes to timelines and costs.
Why You Should Ask
A clear, structured process ensures your project stays on schedule and within budget. It also gives you a sense of how the contractor handles communication and problem-solving.
The Master Roofing & Siding Approach
We follow a simple, five-step process for all commercial roofing projects:
- Contact: Give us a call or send an email to get started.
- Inspection: We’ll perform a detailed, on-site evaluation.
- Installation: Our in-house crews handle the job with precision.
- Clean-Up: We leave the site spotless—no nails, debris, or mess.
- Commitment: We stand by our work with industry-leading warranties.
And yes, we’ll keep you in the loop every step of the way.

6. What Warranties Do You Offer?
You’re making a big investment, so make sure it’s protected.
Protecting Your Investment
Ask about both material warranties and workmanship guarantees. A trustworthy commercial roofing contractor will offer solid coverage for both.
Our Warranty Promise
We offer manufacturer warranties of up to 50 years on CertainTeed roofing systems and a 10-year workmanship warranty on most full roof replacements. When we say our roofs last, we mean it.
7. How Do You Handle Unexpected Issues or Changes?
No matter how thorough the initial inspection, sometimes surprises pop up.
Why This Matters
You need a contractor who communicates openly and finds solutions quickly if issues arise—whether it’s hidden water damage or outdated roofing materials.
Our Transparent Approach
If we discover any problems mid-project, we’ll talk through your options and provide transparent pricing for any additional work. We’re all about honest conversations and zero surprises.
Why These Questions Matter
Hiring a commercial roofer isn’t something you do every day, and the stakes are high. Asking the right questions helps you avoid unreliable contractors and ensures you’re making the best decision for your property.
At Master Roofing & Siding, we know what it takes to get the job done right. Our in-house crews, competitive pricing, and commitment to quality have made us a trusted name in Alexandria since 1974.
Ready to Start Your Commercial Roofing Project?
Whether you’re planning a full roof replacement or need repairs on an existing system, Master Roofing & Siding is here to help. Give us a call at 703-780-9050 or email us at info@masterroofing.com to schedule your commercial roofing contractor interview today.
Let’s get your project started—on time, on budget, and built to last.