Can using a snowblower on my interlock or stamped concrete driveway cause damage over time?

Snowblowers can absolutely damage interlock and stamped concrete driveways if you're not careful, and this is one of the most common winter maintenance mistakes we see across Ottawa neighbourhoods like Barrhaven, Kanata, and Orleans.

How Snowblower Damage Happens

The metal scraper bar (also called the skid shoes or auger housing) on the bottom of a snowblower sits very close to the ground. On interlock driveways, it catches raised or shifted pavers and chips the edges. On stamped concrete, it scrapes away the colour hardener and sealant layer, leaving dull patches that worsen each winter. After a few seasons, you'll notice visible scarring, chipped paver corners, and exposed aggregate.

Adjusting Your Snowblower Properly

The single most important step is raising the skid shoes so the scraper bar rides 3-6 mm above the surface. This leaves a thin layer of snow but protects the driveway material underneath. Most two-stage snowblowers have adjustable skid shoes — set them to their highest position for interlock or stamped surfaces. Single-stage snowblowers with rubber paddles are actually safer for these surfaces since there's no metal contact.

Protective Accessories Worth Considering

Poly skid shoes ($25-$50 per pair) replace the metal ones and glide over uneven pavers without catching. Rubber scraper bars ($30-$60) are another option — they flex over raised joints instead of gouging them. For stamped concrete specifically, some Ottawa homeowners install a non-abrasive urethane edge on the auger housing for about $40-$70.

Interlock-Specific Concerns

Settled or heaved pavers are the real danger. Ottawa's freeze-thaw cycles — we can see 30 or more per winter — shift pavers out of alignment. A snowblower catches these raised edges and pops pavers loose entirely. Before winter, walk your driveway and tap down any raised pavers with a rubber mallet. In neighbourhoods like Gloucester and Nepean where clay soils cause more heaving, this is especially important.

When Damage Has Already Occurred

If your interlock pavers have chipped corners, individual pavers can be replaced for $5-$15 each plus labour. Stamped concrete with scraped-off colour typically needs resealing and colour touch-up at $2-$4 per square foot. For heavily damaged stamped surfaces, a full reseal with new colour hardener application runs $3,500-$6,000 for a standard two-car driveway.

The Better Alternative

Many Ottawa homeowners with interlock or decorative concrete switch to a quality push broom for light snowfalls and reserve the snowblower (properly adjusted) for heavy dumps over 10 cm. This hybrid approach dramatically extends the life of your driveway surface.

Connect with a driveway specialist through Ottawa Driveways to assess any snowblower damage and get repair options before the spring thaw makes things worse.

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

• Luxe Painting and Renovations
• JC Carpentry
• Prime Property Works
• Driveway Sealing Ottawa
• Dreamwood Construction & Renovations