How do I know if I need a new roof or siding?

Common signs include missing or curling shingles, leaks, mold, cracked siding, or visibly aged materials.

How long does a roof or siding replacement take?

In our experience, most of our residential roofer jobs are completed in 1-3 days, while siding projects typically take 3-7 days, depending on the size and complexity of the home.

What types of roofing materials do you use?

We work with a wide range of materials, including asphalt shingles, metal roofing, cedar shake, and flat roofing systems like TPO and EPDM.

★★★★★
4.9 · 129 Google Reviews

Northern Virginia's Trusted

Roofing & Exterior Contractor

Roofing, Siding, Windows & Gutters - GAF Certified, Licensed, Bonded and Insured

WE'RE NOT JUST A SERVICE PROVIDER

Why Homeowners Choose American Group Construction

Roofing shouldn’t be confusing or stressful. We make it clear, simple, and reliable.

What sets us apart: We help our clients make their homes more enjoyable for their families while getting the most value out of their properties.

Serving Homeowners Throughout Northern Virginia and Surrounding Communities

American Group Construction, INC - Roofing Contractor

Roofing Contractor, Siding Contractor, General Contractor, Window Installation Service

We help homeowners protect and improve their homes with dependable roofing and exterior solutions. Our experienced, certified team delivers quality craftsmanship, clear communication, and results built to last. Every project is completed with attention to detail, fair pricing, and a commitment to doing the job right. Explore some of our recent work and see how homeowners trust us to care for their homes from start to finish.

Recent Projects in Our Service Area

American Group Construction

QUALITY, INTEGRITY, AND ROOFING YOU CAN COUNT ON

Choosing the right roofing contractor isn’t just about fixing a problem, it’s about knowing your home is protected by people who take the responsibility seriously.

Highly trained & Certified staff

Our roofing specialists are rigorously trained, certified, and experienced in modern installation practices. You can feel confident knowing your home is protected by experts who take pride in doing the job right.

Reliability and honesty

Established in 2010, our team brings 15 years of hands-on roofing experience and a long track record of doing right by our customers. We show up when we say we will, communicate clearly throughout your project, and provide recommendations you can trust.

Affordable Prices

We offer fair, competitive pricing backed by honest recommendations and clear estimates. You’ll get practical options that fit your budget without sacrificing the quality or protection your home deserves.

Services Guaranteed

With over 10,000 successful projects completed, we stand behind our work with dependable warranties and long-lasting results. Homeowners trust us because our craftsmanship delivers the protection and performance their homes rely on.

Excellent Work. Awesome Professional Service. Highly recommended. I am very satisfied and will use them for all of my roof works and siding as well.

After

Before

10,000+ PROJECTS COMPLETED

PROUDLY SERVING HOMES JUST LIKE YOURS

Check out a selection of projects we’ve completed across Northern Virginia, Washington, D.C., and Maryland.

Certifications & Warranties

All our services are guaranteed.

We only use high-quality materials with outstanding warranties.

The owner, Isai Fonseca is behind of each project. He has over 20 years of experience in the roofing industry. Our staff is well-trained, hard-working, and friendly. All this enables us to assure you of an excellent job.

American Group Construction, Inc. specializes in commercial and residential roofing. We do installation, replacement, as well as inspection and repair on demand of your own or at the request of an insurance company. We fix, clean and replace your gutters.

We are licensed, bonded and insured. Our objective is to offer you specialists: experienced and well trained. That’s why our employees frequently attend seminars and safety training, to be up to date. Reach out to our roofers in Northern, VA, to get started.

Building Confidence From the Roof Down

What sets American Group Construction, Inc. apart is our full-service approach to home exteriors. We provide high-quality roofing, siding, gutters, and window solutions—all under one roof. Every installation is handled by trained professionals who treat your property with care and attention. We use only materials backed by industry-leading warranties, ensuring your investment is protected for years to come.

We work closely with homeowners and property managers to understand their needs and provide honest recommendations. From detailed inspections to seamless repairs and replacements, our reputation as reliable roofers in Northern, VA, has been built one satisfied client at a time.

Home Improvements With Integrity

We understand that trust is earned. That’s why every job at American Group Construction, Inc. begins with transparency and ends with quality. Our licensed, bonded, and insured team shows up when we say we will, communicates throughout the process, and never recommends unnecessary services.

Our clients choose us because they know we put integrity first. We’re not just contractors—we’re partners in helping you maintain and improve your home. That’s why our work is backed by satisfaction guarantees, and why so many homeowners continue to turn to us as their preferred roofers in Northern, VA.

Your Project, Our Passion

There’s a reason our customers describe us as hard-working, friendly, and dependable. We love what we do. Our founder, Isai Fonseca, brings over 20 years of experience in roofing and home exteriors, personally overseeing each project to ensure the highest standards are met.

Every crew member at American Group Construction, Inc. is handpicked for their skill, professionalism, and dedication. We invest in regular training and safety education, keeping our team sharp, updated, and ready to deliver. When you choose us, you’re not hiring just another contractor—you’re choosing a passionate, quality-focused team that takes pride in every detail.

Protecting What Matters Most

Your home isn’t just a building—it’s where your family gathers, memories are made, and futures are built. That’s why we treat each project as if it were our own. At American Group Construction, Inc., we use premium materials and precise workmanship to deliver results that look great and stand the test of time.

From minor repairs to full replacements, we approach every job with one goal: to keep your home safe and beautiful. Whether you’re upgrading old siding, replacing leaking gutters, or looking for dependable roofers in Northern, VA, we’re the team your neighbors trust.

Built on Skill, Backed by Experience

Experience matters—and we’ve got it. Since 2010, American Group Construction, Inc. has completed over 10,000 successful projects. Our team of more than 30 certified specialists brings deep knowledge and skill to every task, making sure nothing is left to chance. We don’t just meet industry standards—we exceed them.

Homeowners throughout the region choose us because we’re experienced, consistent, and always working to improve. With each project, we build more than just homes—we build relationships, community trust, and a reputation as dependable roofers in Northern, VA.

The Local Choice for Lasting Results

As a proud part of the Nokesville community, American Group Construction, Inc. knows the local climate, architecture, and homeowner needs better than anyone. We live and work here too, which means every project we take on is personal. Our team takes pride in serving our neighbors with solutions that last, not just for a season, but for years.

We’re honored to be the local roofing and exterior team that families trust to protect their investments. When you need responsive, professional roofers in Northern, VA, we’re here to help—backed by integrity, skill, and a history of proven results.

If you’re ready to work with a company that combines passion, professionalism, and proven results, reach out to American Group Construction, Inc. today. Let’s bring lasting value and comfort to your home, starting from the roof down. Get in touch with us today to learn how our personalized approach can make a difference in planning out your construction needs.

An Unmatched Reputation

See What Our Clients Are Saying

    
 
 
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   Richard Trombly 
 
 
 
 Trustindex verifies that the original source of the review is Google. American Group's installation crew did a great job installing my gutter helmet.  I'm sold on this roofing company.
  
 
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   Amy Drake 
 
 
 
 Trustindex verifies that the original source of the review is Google. Isai with American Group Construction is just wonderful. I first found Isai about 9 years ago when had a leaky skylight when we first moved in to our home (we bought >100 year old house). I went through about 20 contractors before I found Isai. He was the only one to actually get on the roof to check and found it was the roof, not the skylight, causing problems. His crew replaced the lower roof with new skylights in just a day. He also has a great guarantee on his services. When we thought we had a leak in the roof when it started pouring like a waterfall from the dining room, he came right out the next day to check it out. Turns out, the HVAC left a hole in the side of our house when HVAC guy installed a new unit upstairs (that is a whole other story). But Isai also determined that the upstairs roof had some issues that needed to replaced. Once again, his crew replaced the upper roof in a day and did a great job. He also replaced our garage roof at a later date. We then had a leak through one of the skylights that we replaced. Isai came out the next day. He determined that the skylight was fine but found that an upstairs window was leaking in water (whoever originally fixed up this house just literally put bandaids over everything and now everything was coming off). We saved up the money to fix our whole outside of our house. We needed a general contractor to do the outside porch/deck, mudroom repair, and stone foundation. Isai did all the siding, windows, and doors. Isai has made our house look beautiful - a red farmhouse type. Isai is great to work with, especially as a woman. I have had so many contractors treat me poorly or ignore me because of being a woman. But he treats everyone with respect. He is very detailed, reasonable, and gives many options. He was willing to work with us when we had hiccups and delays with the first general contractor (too bad Isai is not also a general contractor). He will fine tune until you get your vision. I now have my dream home. Trust Isai, Harry, and American Group Construction and you will not be disappointed.
  
 
      Posted on Google  
   
   Ann Timbers 
 
 
 
 Trustindex verifies that the original source of the review is Google. I have dealt with several roofers over the years and this company has, by far, been the best. Everyone is courteous, and knowledgeable. They show up promptly and document their work. I can't say enough good things about this company. I would highly recommend them for your roofing and gutter needs.
  
 
      Posted on Google  
   
   Toryalai Alami 
 
 
 
 Trustindex verifies that the original source of the review is Google. American Group Construction recently completed my house roof replacement, nice people and very professional. I am very happy with their work and quality.
  
 
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   ST D 
 
 
 
 Trustindex verifies that the original source of the review is Google. I can’t recommend Isai from American Group highly enough—outstanding service, clear and detailed explanations, and very fair pricing. He’s incredibly honest and immediately pointed out that others had misdiagnosed the issue—I didn’t need to replace the entire gable after all. He saved me time, money, and a lot of unnecessary stress!
  
 
      Posted on Google  
   
   Mike Tarlton 
 
 
 
 Trustindex verifies that the original source of the review is Google. American Group Construction, Inc. did a fantastic job replacing my roof!  Isai Fonseca, the owner, was very knowledgeable, professional, and easy to work with from start to finish.  The actual work was done quickly and professionally at a very fair and reasonable price.  I would definitely recommend him and I will use again when I need roofing.
  
 
      Posted on Google  
   
   Carlos Marquina 
 
 
 
 Trustindex verifies that the original source of the review is Google. We highly recommend American Group Construction.  I found them through Angie’s list, because we needed to replace our roof. I called them on a late Saturday for a quote and they came the next day, on Sunday.  They were the only company who agreed to work on my schedule.  At the beginning, I had in my mind to do repairs only and replacing the roof in a couple of years, because my 3 previous quotes to replace the roof were too expensive for my budget.  When Isai came he took several pictures of my roof, and his quote for replacing the entire roof was very, very, very affordable.  Then, he explained to me the process and we discussed about any hidden damage that he could discover when replacing the roof, so everything was crystal clear. He found 5 damaged plywood, sent me the pictures and proceeded to replace them. After finishing the job, they gave me the certificate of completion for my insurance company, that lowered my annual insurance premium from $2800 to $928.  We are very happy with American Group Construction, a family owned company, they were very professional, reliable, and with the lifetime warranty on my roof, we couldn’t ask for more.  Call them, they will go above and beyond and you’ll end up with an extraordinary result. Thank you!
  
 
      Posted on Google  
   
   Rich Dudley 
 
 
 
 Trustindex verifies that the original source of the review is Google. I'm very happy with the work American Group Construction did replacing an outside door, painting other outside doors, solving an issue with my gutters, and caulking my skylights.  Isai Fonseca, President of the company, was personally involved in all aspects of the work and quickly replied to texts as we tried to find a solution for a gutter issue.  American Group Construction replaced my roof several years ago, which was a positive experience and led me to request the recent work.  I've been very happy with the quality of work and the attentiveness of Isai.