Robot Vacuums Are Brilliant. Here's What They Still Can't Clean

Robot vacuums have come a long way. A few years ago they bumped around the room at random and got stuck under the couch. Today’s flagship models map your home with LiDAR, recognise socks and cables with AI cameras, empty themselves into a dock, and even wash and dry their own mop pads.

For keeping floors tidy day to day, they’re genuinely brilliant. But spend enough time with one and you start to notice where the technology runs out. Here’s what robot vacuums do really well, where they fall short, and why the smartest setup in 2026 is a combination of tech and people.

What robot vacuums do well

Credit where it’s due. A good robot vacuum handles the daily grind better than most of us do:

  • Daily floor maintenance. Scheduled runs mean crumbs, dust and pet hair never build up.
  • Smart mapping. Room-by-room cleaning, no-go zones and different suction levels for rugs and hard floors, all controlled from an app.
  • Self-emptying docks. Some models can go weeks without you touching the dust bag.
  • Mopping. Newer models lift their mop pads on carpet and wash them with warm water back at the dock.

If you have pets or kids, a robot vacuum running every day makes a noticeable difference.

Where the tech hits its limits

The problem is that most of the cleaning in a home doesn’t happen at floor level. Even the best robot can’t:

  • Climb stairs. You’ll still be carrying it up, or buying a second one.
  • Clean above the floor. Worktops, skirting board tops, shelves, door handles and light switches are all out of reach.
  • Tackle the kitchen. Ovens, hobs, extractor fans and the inside of the fridge need hands, not sensors.
  • Remove limescale. There’s no app for a crusty showerhead or grey grout.
  • Do windows. Window-cleaning robots exist, but they’re slow and fiddly on anything except large flat panes.
  • Deep clean upholstery. A couch or a stained rug needs a proper steam cleaner.
  • Reach every corner. Round robots in particular leave a ring of dust in corners and along edges.

In other words, a robot vacuum is a maintenance tool, not a deep-cleaning solution.

The smart setup: robot for daily, people for deep

Think of it like a dishwasher. It’s fantastic, but nobody expects it to clean the oven.

The setup that works best is simple. Let the robot handle the floors every day, and bring in professionals for a proper deep clean every few weeks or months, or before a big moment like moving house, hosting Christmas, or finishing a renovation. The robot keeps the place ticking over. The deep clean gets everything the robot can’t.

Robot Vacuums Are Brilliant. Here's What They Still Can't Clean

Booking a cleaner has gone digital too

The good news is that booking a professional clean has caught up with the rest of our tech. You no longer need to ring around and wait days for a quote.

In Dublin, Granny’s Cleaning is a good example of how it should work. They say you can book in under 60 seconds, there’s a WhatsApp line, and same-day cleans are often available. A few other things that stood out:

  • They operate 24/7, every day of the week.
  • Their cleaners are Garda vetted and insured.
  • They bring products, plus machines like steam cleaners and industrial vacuums when the job needs them.
  • You pay after the clean, once you’ve checked it.
  • If anything isn’t right, they come back and fix it for free.
  • They have over 400 reviews.

They cover regular cleans, one-off deep cleans, end of tenancy, after-builders and commercial cleaning. At the time of writing a one-off deep clean is €31 an hour with products included.

Tips if you own a robot vacuum

A few things to get the most out of both:

  • Keep floors clear. Robots and cleaners both work faster when cables, toys and shoes are off the floor.
  • Tell your cleaner about the robot. They can focus their time on the jobs it can’t do.
  • Clean the robot too. Brushes tangled with hair and dirty sensors are the main reason robots stop performing.
  • Run it after a deep clean. A daily run keeps that freshly cleaned finish for much longer.

Robot Vacuums Are Brilliant. Here's What They Still Can't Clean

The verdict

Robot vacuums are one of the best home tech upgrades you can buy. They save time every single day. But they’re not going to descale your shower, degrease your oven or steam clean your couch any time soon.

For a home that’s properly clean, pair the robot with a professional deep clean now and then. If you’re in Dublin, grannyscleaning.com is a quick place to book one.

By Jim O Brien/CEO

CEO and expert in transport and Mobile tech. A fan 20 years, mobile consultant, Nokia Mobile expert, Former Nokia/Microsoft VIP,Multiple forum tech supporter with worldwide top ranking,Working in the background on mobile technology, Weekly radio show, Featured on the RTE consumer show, Cavan TV and on TRT WORLD. Award winning Technology reviewer and blogger. Security and logisitcs Professional.

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