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- (571) 305-2252
”Jack was great to work with for our roof replacement. Roof looks great and they cleaned up everything. Barely knew they were there. Thanks for taking good care of us.”
”Anybody looking for a solid, ethical company to replace your homes roof, contact JACKs!
No, I’m in no way affiliated with the company, just a customer that is truthful on my experience with Jason and Erin – JACK Contracting.
Straight and upfront approach, zero gimmicks. I can’t applaud the company enough. Attention to detail and employee attitude is stellar.
If you”re looking for a quality small company, these are your people.
Reach out to me if you need validation.”
If your Gainesville home is showing signs of a failing roof, whether that means persistent leaks, widespread shingle wear, or a system that has simply reached the end of its lifespan, JACK Contracting is the contractor Prince William County homeowners call for a full roof replacement. We serve Gainesville and nearby communities including Haymarket, Bristow, and Nokesville, bringing the kind of workmanship that holds up through years of Northern Virginia weather.
Gainesville sits in a region that experiences heat and humidity in summer, significant storms in spring and fall, and freeze-thaw cycles in winter that can push a deteriorating roof toward failure faster than expected. A properly installed replacement roof is a long-term investment that protects your home for the next 20 to 30 years. JACK Contracting specializes in asphalt shingle roof replacement using quality materials rated for the Mid-Atlantic climate, and we handle projects across the full range of home styles found throughout this part of Prince William County.
Whether your home is in one of the newer HOA communities along Route 29 or in an established neighborhood that has been part of Gainesville for decades, we approach every replacement project the same way: honestly, thoroughly, and with close attention to the details that make the difference. Contact us today to schedule your free replacement estimate.
Getting a full roof replacement is a significant decision, and the contractor you choose matters more than most homeowners realize. JACK Contracting has built its reputation throughout Prince William County by doing replacement jobs the right way, using proper underlayment, ensuring adequate ventilation, and making sure every component of the system works together as it should.
We take the time to do a thorough pre-installation assessment of your Gainesville home so there are no surprises once the tear-off begins, and we communicate clearly with you at every step. Our team understands the housing stock throughout Gainesville, from Heritage Hunt and the newer developments near Route 29 to older homes in established neighborhoods, and we bring the right approach to each project.
JACK Contracting backs our work with solid warranties on both materials and labor. Reach out for your free estimate whenever you are ready.
Durable roofing systems installed with precision and care.
Seamless gutter solutions designed to protect your home.
Premium siding that enhances curb appeal and weather protection.
Energy-efficient windows for comfort, clarity, and efficiency.
Thoughtfully designed kitchens built for everyday living.
Clean, modern bathrooms finished with expert craftsmanship.
Rapid Response Time 
Locally Owned & Operated 
Superior Craftsmanship Every project is completed with careful attention to detail, high-quality materials, and workmanship designed to protect your home for years to come.
Personal Touch We believe homeowners deserve clear communication and honest guidance, so you always understand the process and feel confident in the work being done.
Financing & Claims Assistance Quick conversation to understand your needs, answer questions, and schedule an on-site visit.
We inspect your home, assess the scope of work, and explain your options clearly and honestly.
Our crew arrives on schedule and begins work using proven systems, quality materials, and clean jobsite practices.
We finish with a full walkthrough, answer any remaining questions, and ensure you’re happy before we leave.
Client-focused professional with a nursing and community outreach background, now bringing a relationship-driven approach to residential construction. As Client Experience Manager at JACK Contracting, Erin guides homeowners through roofing, remodeling, and renovation projects with clarity, transparency, and care. Committed to delivering high-quality service while building trust and long-term relationships.
Stacy is a Client Solutions Manager at JACK Contracting, working directly with homeowners on roofing, windows, doors, and remodeling projects. As part of the JACK team, she helps homeowners understand their options, pricing, and product selections so they can make confident, informed decisions.
She assists with both product and design choices by coordinating design consultations with Mosaic Home Interiors, reviewing roofing system options, and explaining how different components work together. Whether it’s walking through Owens Corning roofing systems or guiding window and door selections with ProVia, Stacy focuses on clarity, organization, and eliminating surprises throughout the process.
Her role is to simplify complex decisions, coordinate the right next steps, and make sure homeowners feel comfortable and supported from the first conversation forward. Her work reflects JACK Contracting’s core values of Authenticity, Transparency, and Quality.
Jason Kamprowski is the founder and CEO of JACK Contracting LLC, a Class A licensed Residential Builder Contractor (RBC) company based in Northern Virginia.
With over 30 years of experience in the construction industry, Jason is an expert in all aspects of residential construction, renovation, remodeling, and roofing.
Before starting JACK Contracting, Jason served as a Geospatial Engineer in the US Army, completing two tours in Iraq and one in Afghanistan as a civilian. He later worked in defense contracting and as a federal civilian in geospatial analysis and product management for SaFE Agile software development, specializing in data capture, analytics, and AI/ML-driven solutions.
Jason’s unique blend of military, construction, and software product management experience has helped him incorporate innovative technology and processes into his business and scale and grow the company. Jason is also a devoted husband and father of three.
The company name JACK is an acronym for his family’s first name.
