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  1. #1
    Join Date
    Jan 2010
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    72

    Default How to clean large area of Pavers

    Hi, I have a property/home where just about the WHOLE property is comprised of paver stones (roughly 100' x 35' with a home). Over the years, these originally "red" colored pavers have become dingy, dirty and more grey looking and from a distance, it's difficult to distinguish the paver from the seams. I wanted to try to clean these up. I'm not crazy about powerwashing for it would only do a very small area at a time and I don't want to gouge out the sand in the seams. I was thinking or wondering if there is some sort of orbital sander/polisher that could be used with a scouring pad, etc. I'd rather not get into any real caustic chemicals. Any ideas? Thanks

  2. #2
    Join Date
    Dec 2010
    Location
    Houston Texas
    Posts
    2,371

    Default Re: How to clean large area of Pavers

    There is an attachment for a power washer called a "hydroscrubber"

  3. #3
    Join Date
    Jan 2009
    Location
    Needham, MA
    Posts
    559

    Default Re: How to clean large area of Pavers

    they make a power broom which resembles a weedwacker. maybe wetting the pavers, some muriatic acid and the power broom might work.

  4. #4
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    5,103

    Default Re: How to clean large area of Pavers

    A. Spruce is an expert in steam washing/cleaning. Wait for him to offer his 2 cents of advice.

  5. #5
    Join Date
    Aug 2007
    Posts
    6,486

    Default Re: How to clean large area of Pavers

    Quote Originally Posted by dj1 View Post
    A. Spruce is an expert in steam washing/cleaning. Wait for him to offer his 2 cents of advice.
    LOL what are you saying, that I'm full of hot air?

    I would agree that steam might be a good option, but this would be a rental because there is no affordable homeowner version that could handle that kind of surface area. I mean, you could, but being on your hands and knees with a 1" nylon scrubber tip on the steamer is going to get old REALLY quick!

    I'm not familiar enough with commercial/trailer mounted rental steamers if it's a pressure washer type set up or not, a little research should tell you. If it's a pressure washer type system, then you'll have a similar issue with it blowing the sand from between the pavers.

    What you may be relegated doing would be to use something like a deck wash or TSP solution and a scrub brush on a broom handle to scrub the solution into the surface of the pavers, then rinse it down.
    I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!

  6. #6
    Join Date
    Jul 2010
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    SoCal
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    Default Re: How to clean large area of Pavers

    I know pavers and what I'm afraid of is that all treatments will damage them.

    The thing is that pavers 'weather' thru the years, so it's something that most homeowners learn to accept.

  7. #7
    Join Date
    Aug 2007
    Posts
    6,486

    Default Re: How to clean large area of Pavers

    As long as the cleaning method isn't overly caustic, there shouldn't be a problem with color degradation.

    I would recommend looking at a few paver manufacturer's websites for cleaning and care instructions. That will be the best place to start.
    I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!

  8. #8
    Join Date
    Aug 2007
    Location
    Portland, Oregon, formerly of Chicago
    Posts
    1,587

    Default Re: How to clean large area of Pavers

    There are a couple products I would probably try:

    Jomax is an old line cleaner which is mixed with bleach to make a very effective cleaning solution. A quart is mixed with four gallons of water and 3 quarts of household bleach to produce 5 gallons of solution. Jomax contains a chemical which further activates the bleach, a detergent and additional mildecides. I use this product on my concrete exposed aggragate patio every year to get rid of the algae and mildew from the long , damp Portland winters. Its application followed by a vigorous rinse with the power washer is very effective.

    Another product which is a great concrete cleaner is Behr's All In One Deck Cleaner. This is basically oxalic acid with the addition of some enzymes for cleaning. I discover by accident how good a concrete cleaner it is. I was using this product to bleach out my cedar fences. While mixing it on my driveway, I was splashing some of the solution on the driveway. Low and behold, that area of the driveway looked like new! After that, I treated the whole driveway.

    It also did a good job of getting the rust stains out of the sidewalk where I stupidly had left some of the 5% iron containing grass fertilizer had made stains.

    I see no reason why these faded pavers good not be stained with a transparent concrete stain after cleaning to reinstate some of the color.

  9. #9
    Join Date
    Jan 2010
    Posts
    72

    Default Re: How to clean large area of Pavers

    Thanks for the advice everyone. I'm going to have to think this thing through a bit and I'm going to check out my local equipment rental shop to see if they have any ideas. It is a large area. I'm not really trying to get the pavers to look like new..with their original color. I just want to get the top surface of grime off and hopefully have the pavers look separated again (seams). I was thinking that there would be some type of a machine/steamer/buffer similar to what you see them using on a roof to clean shingles/remove moss, etc.

  10. #10
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    5,103

    Default Re: How to clean large area of Pavers

    One last suggestion:
    I've cleaned mold and mildew off roofs with 100% bleach, using a regular garden sprayer. I got results in 20 minutes.
    Do you want to try it on your pavers?

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