Concrete Cleaning

Concrete Cleaning 

It's a sad joke in the pressure washing industry saying, that guy is a Home Depot pressure washer.  What we are referring to is a person that buys a pressure washer for residential use. Then claims they are a professional.  Of course, it is usually these men who claim these pressure washers can properly clean something such as concrete.

When you're getting your concrete cleaned you do want to ensure your pressure washer is using proper equipment. Using the right equipment and techniques will allow the technician to complete the job at a professional level.

 

Our Approach To Concrete Cleaning

Many pressure washing companies apply a solution to the concrete before the concrete cleaning in order to help loosen contaminants from the concrete. This does not help as long as the proper equipment, which we will go over below, is used.

We start our process my first using a surface cleaner to cover the main area of your driveway and walkways. Next, we will use pressure washing gun to edge out everything that the Surface Cleaner was not able to reach. Then also use the pressure washing gun to rent all the loose debris from the concrete. Lastly, is applying the bleach-based solution to the concrete. This allows the solution to slowly move down the concrete in order to remove any remaining organic matter.

The post treatments step is the most important and sadly one that is missed by a lot of pressure washers. Without this step you will see lines where they pressure-washed and a pressure washer was not able to clean out everything. Nine times out of 10 the steps I've listed are appropriate for cleaning concrete. However, if another cleaning after the put’s treatment is put down is necessary; we will go over the steps one more time.

Different Types of Masonry We Clean

Concrete Cleaning Cumming, GA

Concrete

The pro to raw concrete can be cleaned in many different ways. Yet, the con is that raw concrete gets the most stains and is the hardest to clean.

Concrete Cleaning Cumming, GA

Stained Concrete

Stained concrete gives a great look to the concrete. Unfortunately, most homeowners assume the concrete is protected but it is not seeing this is not sealer. Furthermore, depending in the stain, we may need to introduce a cleaning agent that can strip the stain.

Concrete Cleaning Cumming, GA

Stamped Concrete

Stamped concrete cleans nicely. But, remember the stain needs to be reapplied once every 4-5 years. Also, stain is not sealer so it will not protect the surface.

Driveway Cleaning Cumming, GA

Mixed Masonry

Weather it is raw concrete mixed with pavers or brick it is the same raw concrete. While we have many options to clean it. With out any form of protection it gives the dirtiest.

Driveway Cleaning Cumming, GA

Pavers

Pavers give an amazing look to a driveway. While we can clean pavers, some require only soft wash techniques due to the sand base that they have.

Asphalt Cleaning Cumming, GA

Asphalt

While asphalt is not concrete it can be cleaned the same way with two exceptions. First when edging the asphalt, one must not exceed 1000 psi. Also, the only chemical that can be applied to asphalt is degreaser.

PROPER CONCRETE CLEANING EQUIPTMENT

PRESSUER WASHER

Most pressure washing professionals use a machine that is rated at 8 gallons per minute and 3500 PSI. well this is the best machine to use it is still acceptable to go all the way down to 4 gallons per minute and down to 3000 psi.  Some will also use heated water for cleaning concrete. There is nothing wrong with this practice. Yet, if the technician applies a post-treatment it does not matter whether it’s a cold or hot machine.

 

SURFACE CLEANER

Sometimes after a cleaning you may see that it has what we call Zorro marks. We find Zorro marks when technicians use a pressure washing gun instead of a Surface Cleaner. Essentially these marks are made from missing areas in the concrete that are still dirty. In some cases, they show up due to not by missing the dirt however by cutting into the concrete because the pressure is too high. First it allows you to cover a significant amount of area much quicker. Second it is a more thorough clean not missing any areas within the area of the Surface Cleaner.

 

HOW IT WORKS

Think of a Surface Cleaner the same as a lawn mower. however instead of a blade there is a pressure washing tube with nozzles connected to each end. These two nozzles are set on an angle in order to give a spinning motion. By this spinning action Surface Cleaner is able to clean the entire area under it.

 

The Gun

The pressure washing gun while it is not good for cleaning the entire driveway is very beneficial for cleaning the edges and in the cracks of the concrete. When using the gun, you want to ensure that you are using no more than 1500 psi otherwise even as hard as concrete is you can still go into the concrete if you use the pressure washer to its full strength.

WHAT Equipment NOT TO USE

Turbo Nozzle

A turbo nozzle is a nozzle that gives the water a pencil like stream and spins it in a cone shape. Newer pressure washing professionals use this type of nozzle due to the ability of pressure washing a larger area quickly. However, improper use of this nozzle can cause damage to the concrete by cutting into and removing some of the cream. Even a technician who is properly versed in use of turbo nozzles is a bad idea. This is due to the amount of pressure generated by this nozzle is greatly more than what the pressure washing equipment allows. That is why I never suggest the use of a turbo nozzle there's too great of a chance of damage.

Any Nozzle Over 1500 PSI

When cleaning concrete what sound that it is very hard and pressure will not harm it. As we just cover the turbo nozzle damages concrete easily. Beyond that any regular nozzle that is over 1500 PSI can also begin to degrade the concrete. This is why we use different chemicals as well in order to aid in the cleaning process of concrete.

 

Foxland Cleaning’s Service Area

Foxland Cleaning serves most areas north of Atlanta. Some of the communities where we work include:

  • Alpharetta, GA
  • Ball Ground, GA
  • Canton, GA
  • Cumming, GA
  • Dawsonville, GA
  • Johns Creek, GA
  • Milton, GA
  • Sugar Hill, GA
  • Suwanee, GA

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