How much should I budget for landscaping and grading around a new garage in NB?

Budget $2,000-$6,000 for proper grading and landscaping around a new garage in New Brunswick, with basic grading and seeding starting around $1,500 for a single-car garage and comprehensive landscaping with retaining walls, walkways, and plantings reaching $8,000+ for larger garages on challenging sites.

Grading is absolutely critical in New Brunswick's wet Maritime climate — it's not optional cosmetic work but essential foundation protection. Poor drainage around your garage will cause water infiltration, slab moisture problems, foundation settlement, and premature deterioration of your investment. The grade must slope away from the garage foundation at a minimum 2% slope (roughly 1 inch per foot) for the first 6 feet on all sides. This seemingly simple requirement often requires moving significant amounts of soil, especially if your garage sits lower than the surrounding yard or if the excavation contractor left the site poorly graded.

Basic grading typically costs $8-$15 per square foot in NB, depending on soil conditions and how much material needs to be moved. For a typical 24x24 two-car garage, you're looking at grading approximately 1,200-1,500 square feet around the perimeter — that's $1,200-$2,500 just for rough grading and slope correction. If your site has clay soil (common in much of NB), poor drainage, or requires importing clean fill, add another $500-$1,500. Topsoil costs $35-$50 per cubic yard delivered in most NB communities, and you'll typically need 3-6 cubic yards for final grading around a garage.

Drainage improvements often push costs higher but are essential investments in NB's climate. If your garage site doesn't naturally drain well — common in Fredericton's river valley, parts of Moncton's clay belt, or anywhere with heavy clay soil — you may need French drains, drainage tile, or catch basins. A simple French drain around the garage perimeter costs $15-$25 per linear foot installed, so $1,200-$2,000 for a typical garage. Downspout extensions and splash pads add another $200-$500 but are essential for directing roof water away from the foundation.

Walkways and driveways represent the largest landscaping expense after grading. Extending your existing asphalt driveway to a detached garage costs $8-$15 per square foot, so a 12-foot-wide, 50-foot extension runs $4,800-$9,000. Concrete walkways cost $12-$20 per square foot installed, while interlocking stone or paver walkways run $15-$25 per square foot. A basic 4-foot-wide concrete walkway from the garage to your house (typical 30-40 foot run) costs $1,400-$3,200.

Seeding and basic landscaping around a properly graded garage costs $2-$4 per square foot. This includes final soil preparation, grass seed or sod, and basic shrub plantings near the foundation. Sod costs more upfront ($1.50-$2.50 per square foot) but provides instant results and erosion control — important on slopes around your garage. Hydroseeding is a middle option at $0.75-$1.25 per square foot and works well for larger areas.

Timing matters significantly in New Brunswick's climate. Grading should be completed immediately after garage construction to prevent water infiltration during the first winter. However, final seeding and planting should wait until spring (April-May) or early fall (August-September) for best establishment. Many homeowners complete rough grading in late fall and finish with topsoil and seeding the following spring.

Hire professionals for grading and drainage work — this isn't a DIY project. Improper grading causes expensive foundation problems that cost far more to fix than doing the drainage right initially. However, homeowners can handle seeding, basic planting, and walkway maintenance to control costs. Always get multiple quotes, as landscaping prices vary widely between contractors, and verify that your contractor understands NB drainage requirements and clay soil conditions.

Need help finding landscaping contractors experienced with garage site preparation? Find local professionals through the New Brunswick Construction Network who understand Maritime climate drainage requirements.

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Looking for experienced contractors? The New Brunswick Construction Network connects homeowners with qualified professionals:

• R.e.j Construction
• Thirty Four Renovations
• Gionetterenovations