Why I skip the power drill for tight masonry chimneys

Most sweeps I know rely on power drills with brush heads. On a recent job, the mortar was weak and the drill risked causing cracks. I switched to hand rods and a small brush, which took more time but preserved the structure. Has anyone else faced this with older homes?

3 comments

3 Comments

lucas_johnson391mo ago

Oh wow, I mean my uncle's place had a chimney like that. We just used a wire brush by hand and it took forever, but no way was a drill going near it.

aaronhenderson1mo ago

Yeah, I heard an old-timer sweep talk about this exact thing on a podcast once. He said on those pre-1900 homes, the brick and mortar is just different, way softer. He basically refused to bring a power drill on those jobs at all. Said the vibration alone from the drill motor could shake things loose that were barely hanging on. Your call to switch to hand tools was totally the right move, even if it eats up more of your day. Saving that original chimney is way more important than saving an hour.

nancy_butler1mo ago

Gotta push back hard on this one, @aaronhenderson. That old-timer's fear is holding back good work. Modern tools have variable speeds and a light touch with a good drill does LESS harm than beating on it with a hammer and chisel all day. You can save the chimney AND your time if you know what you're doing.