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THE FIRST CHOICE OF QUALITY

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Looking For A Basement Floor Repair & Waterproofing Contractors Near You?

It’s Our Goal to Consistently Provide You With a Higher Level of Service and Transparency on Every Project We Take on.
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FREE ON SITE INSPECTION

If you can dream it, we can build it.

FREE ON SITE INSPECTION

If you can dream it, we can build it.

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High Quality Workmanship

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Affordable Rates

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Certified & Trained Experts
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Licensed & Insured Contractors

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Won't Be Beaten on Price or Quality

We’re on a Mission to Provide More Than Exceptional Basement Related Services

A1 Masonry contractors are licensed and insured contractors based in Washington DC. We provide high-end results and our service area covers the entire Tri-State. We offer expert solutions on services such as basement floor repairs, basement floor replacement & basement insulation and also specialize in exterior and interior basement waterproofing. We can transform your musty, damp, and leaky basement into a dry, usable space. As one of the trusted waterproofing contractors in the area, we guarantee quick and responsive services with a quality finish.

Special Offer

$750 OFF

FOR NEW DRIVEWAYS

$350 OFF

ALL REPAIRS

$500 OFF

FOR NEW PATIOS

Testimonials

- MATTHEW

I’ve done basement work with A1 Masonry Contractors on multiple occasions. Their staff is really kind and professional. I keep calling them because the results they provide are amazing.

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- JOSE
Professionalism & high-quality work. Quick to offer an estimate, quick to do the project, &clear in their explanation of what they completed. They also gave me polite suggestions on other projects I’m working on.
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- SAMUEL

The basement project went really well; they arrived on time, worked hard, cleaned up after themselves, and completed the work to my complete satisfaction Please pass on our thanks to the team.

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Our Works

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A1 Masonry Contractors delivers high-quality workmanship in basement related services with guaranteed client satisfaction. We provide a wide range of services for all kinds of needs. Call Us today to receive a free estimate.

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FREE ON SITE INSPECTION

If you can dream it, we can build it.