How much for tree-stump grinding before paving in Ottawa?

Tree stump grinding in Ottawa typically costs $150 to $400 per stump depending on size, with an additional $100 to $300 for proper backfilling and compaction before driveway paving.

The stump grinding itself is just the first step — what matters for your driveway is properly preparing the void left behind. A 12-inch diameter stump might cost $150 to grind, but the resulting hole extends 18 to 24 inches deep and must be backfilled with granular material and compacted in lifts to prevent settling. Many homeowners focus on the grinding cost and overlook the critical backfill work.

Stump size dramatically affects pricing. Small stumps (6 to 12 inches diameter) run $100 to $200 each. Medium stumps (12 to 24 inches) cost $200 to $350. Large stumps (24+ inches) can reach $400 to $600, especially if they have extensive root systems. Ottawa's mature neighbourhoods — Glebe, Westboro, Alta Vista, Manor Park — often have large maple, oak, and ash stumps that hit the higher end of this range.

The backfill and compaction work is equally important as the grinding. After stump removal, the void must be filled with Granular A base material and compacted in 150mm lifts with a plate compactor. This prevents the driveway from settling into a depression over the former stump location. Expect $100 to $300 additional for proper backfill, depending on the size of the void. Some stump grinding contractors include basic backfill with topsoil, but this is inadequate for driveway base preparation — you need granular material compacted to specification.

Timing matters for your paving project. Stump grinding creates wood chips and debris that must be completely removed before base preparation begins. The grinding should be completed at least two weeks before paving to allow time for proper backfill settling. Many paving contractors prefer to handle the backfill themselves to ensure it meets their compaction standards, so coordinate between your stump grinder and paving contractor.

Root considerations extend beyond the stump. Large trees often have major roots extending 10 to 15 feet from the trunk that can heave driveway surfaces. Your paving contractor should identify and address any significant roots during excavation. Root barriers may be recommended if other large trees remain near the driveway.

When to Hire a Pro: Stump grinding requires specialized equipment and expertise. The grinder's carbide teeth can hit buried utilities, and improper technique damages surrounding landscape. Always call Ontario One Call (1-800-400-2255) before any excavation work to locate underground utilities. Professional stump grinders carry insurance and know how to work safely around gas lines, electrical, and water services.

Need help finding both stump grinding and paving contractors? Ottawa Driveways can match you with local professionals through the Ottawa Construction Network to coordinate your entire driveway project.