Cement can be one of the most challenging substances around a home to clean. Concrete is very porous which allows dirt, tree sap and rust stains or actually mineral stains, to sink deep down making it almost impossible to clean with just soap and water. In order to clean concrete effectively, you must use a commercial grade power washer along with professional grade cleaners made for cleaning concrete. So forget about using off-the-shelf cleaners and the ninety dollar pressure washer, that is unless you really just need an excuse to play in the water or want to deep clean the soles of your shoes, because that’s about all you are going to accomplish if you try to clean cement driveways with the items mentioned above.
Some other things to take into consideration when cleaning cement and driveways is the size of the areas that need to be cleaned and the time it will take to clean that large of an area. Typical driveways can run around 18′ x 30′ and escalate up to around 20′ x 80′ or more. That means you could be pressure washing concrete areas that are between 540 sf to more than 1600sf. Does power washing concrete still look like a fun-in-the-sun project?
Well, now that you know how much you have to clean, start figuring on how long it will take you with one of those cheap pressure washers that clean concrete somewhere in the neighborhood of one square foot per minute, and that’s with a professional grade concrete cleaner. This means you would spend about 9 hours without a break just to halfway clean a 18′ x 30′ driveway. How about 27 hours to clean a 20′ x 80′ driveway? It is starting to look like you better cancel all of your plans for that type of weekend project.
There is a much simpler way to get your driveway clean; just hire a professional concrete cleaning contractor that is equipped with the proper cleaning equipment and has the experience to do the work right.