Will it scratch my concrete, chew my gravel, or scalp the lawn?

A driveway is an expensive thing to let a 200-pound tracked robot loose on. Between Annapolis brick, Colorado stamped concrete, Chester County pavers, and half the gravel lanes in Garrett County, we see every surface there is. Here’s what actually happens to each one, and what we do about it.

Smooth concrete: the spike question

The winter track set that comes with the Snow Blower includes metal traction spikes. They’re great on slick, sloped asphalt. On smooth or decorative concrete, owners have reported fine scratch marks where the robot turns — and several simply removed the spikes.

We treat spikes as a per-driveway decision. Flat, broom-finished concrete usually doesn’t need them, and we leave them off. A sloped driveway that ices does, and we’ll show you what the wear looks like before you decide. There’s no right default; there’s only your driveway.

Pavers and brick

Pavers are a good match. The intake height is adjustable, so we set the scraper to ride just above the joints rather than dragging across them, and the rubber tracks distribute weight far better than a plow truck’s tires ever did. What we watch for is loose or heaved pavers along the edges — the robot won’t fix those, and the auger doesn’t love finding one. Fall is a good time to reset them; it’s on our pre-season checklist.

Gravel: the honest conversation

Yarbo’s official guidance is paved surfaces, and the plow blade accessory specifically isn’t recommended on gravel. In practice, the intake can be raised up to about two inches so the auger skims the snow above the stone and leaves a packed base untouched. Owners on Yarbo’s forum are split: some report their gravel lanes clear fine, others report the robot getting hung up on loose stone.

Our rule: we’ll tell you at the site assessment whether yours is a good candidate. Compacted, well-crowned gravel with a settled base usually is. Fresh, deep, loose stone usually isn’t — and a robot that ingests a mouthful of pea gravel makes a noise you don’t forget. (One owner learned this by running over a bag of it. No damage, but a memorable evening.)

The lawn edge at the dock

The most common cosmetic complaint isn’t the driveway at all. It’s the strip of turf beside the dock or at the end of a route where the robot turns every single pass all winter. Tracks turning in the same spot chew grass, and spring reveals it.

So we don’t let it happen: the dock goes on hard surface wherever possible, route turns happen on pavement, and where a route has to cross a turf strip we raise the intake so the auger never touches grass. If your only dock spot is on lawn, we’ll set a paver pad — a cheap fix that saves an ugly April.

Snow throw and the house

One more thing owners mention: wet snow thrown at a close wall sticks to it. We set throw zones with the house, the cars, and the neighbor’s fence in mind, and shorter throw for wet snow. Where the snow lands is a mapping decision, and mapping is the part we’re best at.