Expert Grading & Drainage in Mount Airy, MD

Stop fighting standing water, muddy low spots, and erosion every time it rains. HL Design Landscaping LLC designs and installs grading and drainage systems that move water away from your home and hardscapes, keeping your yard usable in every season. We’ve been helping homeowners in Frederick, Carroll, Howard & Montgomery Counties, MD solve water problems since 2011.

From simple regrading to full drainage systems, we’ll look at the whole property, set proper slopes, and tie everything together so water has a safe place to go that’s away from your foundation, patios, and walkways.

Residential & Commercial Grading & Drainage

  • Yard regrading and lawn reshaping
  • Swales, berms & surface water redirection
  • French drains and trench drains
  • Downspout extensions & sump pump tie-ins
  • Dry wells, rain gardens & other stormwater solutions
  • Permeable pavers and decorative drainage features
Project Gallery
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Drainage & Grading Contractor Since 2011

  • Woman-owned and locally operated
  • 45+ years’ combined experience
  • 3-year hardscape warranty
  • Financing options available

We focus on fixing soggy spots, redirecting runoff, and protecting your foundation so every storm drains the way it should—not into your yard or basement.

Licensed & Insured Hardscape Company

  • SRW- and ICPI-certified installers
  • Nicolock Certified Contractor
  • Concrete Masonry & Hardscapes Association (CMHA) affiliation
  • Maryland Home Improvement Commission (MHIC)–licensed contractor

Our team follows manufacturer specs and county drainage guidelines so your grading, drains, and dry wells are built to perform long term, not just look good on day one.

HL Design Landscaping Project Gallery

As a trusted landscaping and hardscape contractor, we have regraded, dried out, and protected from runoff across Frederick, Carroll, Howard & Montgomery Counties, MD. See how proper grading and drainage can totally change how your property handles rain.

Call or text 301-829-9323 or contact us to get started.

Dealing With Standing Water or Erosion?

If you’re seeing puddles that never dry, mulch washing away, or water running toward your house, it’s time to address the grading. We can reshape the yard, install drains, and redirect runoff so rainwater flows safely away instead of sitting on top of your lawn. We serve residential and commercial clients across Frederick, Carroll, Howard & Montgomery Counties, MD.

Professional Grading & Drainage Company in Frederick County, MD

In addition to professional grading and drainage services, HL Design Landscaping provides expert landscaping, tree service and hardscape design, including: retaining walls, walkways, outdoor kitchens, fire pits & fireplaces, landscape lighting, gazebos and pergolas, and patios and decks.

Call or text @ 301-829-9323 or request a FREE Quote to get started.

Protect Your Home With Proper Grading & Drainage

Good drainage is one of the best investments you can make in your property. It helps protect your foundation, keeps basements drier, and stops patios, walkways, and lawns from breaking down before their time. Call or text us @ 301-829-9323 or request a FREE Quote to get started.