My basement floor has been made amazingly gross (thank you, cats) and I'd like to get it really clean. Is there an option other than scrubbing on hands and knees? Are there cleaning solutions that work well on concrete? Do I have to worry about damaging the floor? There's no drain anywhere.

  • I know you can nowadays easily get environmentally friendly, safe (concrete, siding, etc) cleaners from the 2 big-box DIY stores here in the US.
    – Mike Perry
    Commented Jul 11, 2011 at 22:07

2 Answers 2


Is this a finished concrete floor or raw slab? If slab, I'd suggest low-power pressure wash...maybe even start with just the garden-hose attachment. Add a bit of soap.

The real challenge, however, is that you have no drains. I can't think of an easy way to get around that short of power wash a bit, shop vac it up, and then constantly repeat until the shop vac is full, then empty that into a sink and repeat.

  • A driveway squeegee (like this -- basically a big squeegee on a broom handle) in combination with the shop vac will make this job much easier.
    – gregmac
    Commented Jul 12, 2011 at 18:09
  • 2
    A Shop-vac pump vac (has a built in water pump) may make it easier to remove the water from basement to outside or a drain in an upper floor. Here is a link at walmart.com walmart.com/ip/Shop-Vac-Wet-Dry-Pump-Vacuum-10-Gallon/2194732
    – RSMoser
    Commented Jul 12, 2011 at 21:16
  • It's a raw slab.
    – nmichaels
    Commented Jul 13, 2011 at 15:29
  • Since I didn't have a shop vac handy, I used a carpet shampooer to suck up the water. It was basically this though.
    – nmichaels
    Commented Nov 3, 2011 at 14:18

You could use acid with water and a hard brush, but be really sure to have forced ventilation and the proper mask and safety gear.

I used this to clean decorative stones in my garden.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.