

ABOUT OUR COMPANY
We don't just move earth - We build foundations for the future
J&M Earthworks LLC is a locally owned, veteran-owned excavation contractor serving New Hampshire. With over 30 years of hands-on experience, we specialize in septic system installation, excavation and site work, drainage solutions, retaining walls, driveway construction, and land clearing for residential and commercial projects. We are committed to delivering reliable service, quality workmanship, and clear communication from start to finish. Our goal is to prepare your site properly and get the job done right the first time.
Septic Installation & Home Site Prep
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Septic system installation & repair
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House lots & driveways
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Drainage solutions
Drainage & Retaining Walls
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Drainage correction
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Retaining walls
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Erosion control
Excavation & Site Work
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Excavation for commercial & residential builds
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Site preparation and grading
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Foundation digging
Land Clearing & Prep
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Land clearing
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Rough grading
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Build-ready site prep