Noise, timing and neighbours
The specification that decides whether you can run it when you want to.
Noise is the specification people ignore until they live with the machine, at which point it determines when they are able to run it — which determines whether they run it at all.
What the numbers mean
| Level | Comparable to | In practice |
|---|---|---|
| Under 55dB | Quiet conversation | Can run while you work in the same room |
| 55–65dB | Normal conversation | Fine in another room; distracting nearby |
| 65–75dB | Traditional vacuum | Leave the room. Not for calls or sleeping |
Robot vacuums vary their noise by mode. The advertised figure is usually the quiet setting, and turbo or maximum power is considerably louder — often the difference between another-room tolerable and leave-the-house loud.
The quiet mode trade-off
Lower power means less noise and longer runtime, at the cost of pickup on carpet. On hard floors this trade is nearly free — you rarely need maximum power on a surface where debris sits on top.
Practical setup: quiet mode as default with carpet boost enabled, so the machine only gets loud where it needs to.
Runtime vs your floor area
See whether one charge will finish your floor.
Open the runtime calculator →Flats and shared buildings
Floor vibration travels through buildings more than airborne noise does, and a robot vacuum bumping a skirting board at 7am is audible in the flat below. Many leases include quiet hours; where they do not, the usual conventions are still worth respecting.
Scheduling for mid-morning or early afternoon on weekdays avoids nearly all of it, and has the additional benefit that the home is usually empty then.
Docks make noise too
Self-emptying docks are the loudest thing in the system. The emptying cycle is brief — usually under fifteen seconds — but it is genuinely loud, comparable to a traditional vacuum at full power. It triggers when the machine returns, which means it happens at the end of every run.
If the dock is in a bedroom or near a nursery, this matters more than the vacuum's own noise figure. Some models let you schedule or delay the emptying cycle.
Pets and noise
Many animals find these machines stressful, and the noise is a large part of it. Running the machine while you are out is kinder to a nervous pet than running it while they are shut in another room, because the sound travels anyway and they cannot see what is causing it.
Quieter models let you run them while you are home, which in practice means they get run more often. Compare by noise level → Advertising — we may earn a commission.
Common questions
How loud is a robot vacuum?
Typically 55 to 70dB depending on mode. The advertised figure is usually the quiet setting; turbo and maximum power are considerably louder. Under about 60dB is tolerable to be in the same room with.
Are self-emptying docks loud?
Yes — the emptying cycle is the loudest part of the system, comparable to a traditional vacuum at full power, though it lasts under fifteen seconds. It runs at the end of every cleaning cycle.
When should I schedule a robot vacuum in a flat?
Mid-morning or early afternoon on weekdays avoids most disturbance and usually coincides with an empty home. Floor vibration travels through buildings, so early morning and late evening runs are audible below.