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National Contractors is an award-winning industry leader offering unsurpassed general construction services to community associations, condominiums, management companies, engineering firms, commercial property managers and residential property owners. We have earned numerous manufacturer certifications and recognized among the top 2% of roofing contractors in North America.

Our team of dedicated craftsmen will provide you with unparalleled workmanship, quality assurance and unrivaled customer service. We have years of expertise and training on roofing, siding, windows and doors, water infiltration, decks, balcony repair and restoration, stucco, brick, stone veneer and more.
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Delaware | Maryland | New Jersey | Pennsylvania

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  • What to expect during a Deck or Balcony Project
  • A Complete Roofing System
  • The Fundamentals of Maintenance

National Contractors is a premier partner with GAF Roofing System. In May 2020, it has received the prestigious President's Club Award.

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Better Business Bureau A Plus Rating

National Contractors maintains its expertise by attending workshops and conferences offered by key players in the building materials industry. We offer know-how in new construction and remodeling areas.

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National Contractors NewsLetter

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Best Roofing Materials and Colors for Energy Efficiency

Would you like to save money on your heating and cooling bills and keep your home feeling pleasant year-round, regardless of the weather outside?

June 2024

Our Services

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Inspections & Repairs

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Steep Slope Roofing Services icon

Steep Slope Roofing

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Low Slope Roofing Services Icon

Low Slope Roofing

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Stucco, Brick and stone services

Stucco, Brick & Stone

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Gutter services


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Window Services Icon

Windows & Doors

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Skylights services icon


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Chimney Chase Caps services icon

Chimney Chase Caps

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PVC membranes services

PVC Membranes

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Coatings and Sealants services

Coatings & Sealants

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Customer Testimonials


As chairperson of our FSR Maintenance Committee I am pleased to acknowledge that National has completed the fifth year of our roofing project with the same level of professionalism and attention to detail that we have come to expect as was experienced over the past four years.  
I have been involved with the FSR's roofing project for the past three years, where I have closely interfaced with Mario, and along with Jerry provided oversight as the project progressed. Mario's performance continues to be outstanding, providing excellent leadership to his team who are very diligent in their work while keeping the community neat and safe.  The quality and workmanship of the roofs, stucco replacements, stone replacements and gutters continues to meet our high expectations. In addition, Mario interfaces with residents in a very positive manner and he earns their respect. Overall, as a community we are very pleased.
We thank everyone at National for doing a great job and we look forward to working with National and in particular with Mario next year as we enter our sixth year of our roofing project.

Frank P., April 2024

National Contractors,
You have all been a joy to work with and I will absolutely look forward to working with you all again on the next project!
Have a great holiday season!!!

Portfolio Manager, Premier Management, December  2023

On behalf of the Windy Bush homeowners we want to acknowledge toall that we were very pleased with your entire crew. They were very hardworking and respectful of our property. 
We understand the work ethic of the crew and quality of the final product, in large part, is a reflection of the project supervisor. Marek is the type of leader we always hope for on a project. He treated our properties, as I am sure, he treats his own. He always put the customer first. 
Marek, the Windy Bush Board and all of its homeowners thanks you. 

February 2024

National Contractors is a great company to work with for any large project your community may need. Their quality of work is excellent. Their crew is efficient and respectful of the residents who live in these communities. I've been a community manager for 10 years and the thing that stands out above all else is their customer service. They are professional and responsive to homeowners, Board Members, and management from beginning to end of any project They stand by their work and will make it right if there is a problem. They recently completed a large siding replacement project. They were met with so many challenges during the 9 months they worked on the project and never missed a beat. They exceeded everyone’s expectations.
I was very impressed. I strongly recommend National Contractors and look forward to working with them again.

Kim W., Community Manager, March 2023
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