How To Build A Low-pressure Roof Cleaning Machine

Click here and go to the official website of the seller to purchase or learn more about this product!!!

Considering the low pressure washing business?

Work smart, bury your competition and make a lot of money.  



“It’s in the process, not the pressure”

Below is a story of how we built a successful business as exterior cleaning contractors. and so can you.

Hello, my name is John White and I’m a retired HVAC contractor, turned exterior cleaning contractor.  In 1993 my buddy, Dick, was self employed, doing power washing work.  Dick was fixated on finding a method to clean roofs without using high pressure, and since he was not a very mechanically inclined person, he kept bugging me about helping him come up with a method to clean roof stains using low-pressure.  Compared to the HVAC business, pressure washing did not seem very challenging to me, and I just could not get interested.

One day, after his numerous pleads, I broke down agreed to help him with his business.  Dick had an open trailer, a pretty good pressure washer (13 HP, 3400 PSI) 200 feet of hose coiled up, a five gallon sheet rock bucket for mixing chemicals, a case of Clorox, some Dawn detergent and a couple ladders. This was his entire business.

I felt like his idea about the roof cleaning business offered the most promise if any money was to be made, as no one was doing it In 1993, I couldn’t even find any info on the new information highway (internet).  My interest grew when Dick announced he had heard through a supplier of a company that was producing a chemical that would clean roofs with garden hose pressure.  We promptly ordered a case and found the chemical did an excellent job cleaning, but garden hose pressure was not going to do the job, at least in a timely manner.  All we needed was a little bit more pressure but nothing like the pressure produced by a power washer.  We went to our local agriculture supply store and began buying pumps, motors, tanks and nozzles and eventually put together a machine that would safely clean roofs.  We must have spent $5,000 on pumps, regulators and other contraptions until we finally got it right.

Something really exciting happened.

While designing a rig to clean roofs we incorporated labor and chemical savings features that allowed us to clean siding, roofs and decks in a fraction the time using half the chemicals. This translates mathematically to earning more money per hour with less chemical cost than our competitors. However, our biggest money maker was simply being able to advertise:


“Did we make any money?”

The first year we did $50,000, not bad for being the new kid on the block.  By the third year, our onetrailer was doing $120,000.  Now, I’m not guaranteeing you will make the same amount. You could make more or you might make less. It depends on your willingness to devote time and effort to your business.  However, $50,000 was nothing to sneer at in 1993.

What was our secret?  

Before I go any further with this story, I want to talk about high pressure cleaning.  The only places for high pressure (I’m talking about 1500 psi or greater) is for popping bubblegum off of sidewalks and cleaning mud off heavy equipment.  I recently had my HardiePlank sided house painted, and part of the deal was having the painter clean the house before painting.  I was recovering from an operation so I let the painter do the cleaning.  He arrived at my home with a pressure washer, 50 foot of hose an 8 foot extension wand and 33 gallons of Clorox, you heard me right, 33 gallons (He ended up only using 25 gallons).  My house is only 2500 square feet. I asked, “Where is the detergent”?  He replied, “Don’t need any, been doing this for 20 years and when I get through your house will be clean as a whistle and the wooden steps will look like they just came from the lumberyard”.  I knew I was in trouble now, but It gave me a great opportunity to get some good pictures to illustrate how pressure washers can cause you a lot of grief.

Below are the results.


Sure glad I didn’t have vinyl siding or it may have been blown off!

And, that wood that was supposed to look like it just came from the lumber yard!

                      Below is a photo of bleached wood vs new wood


The good news is, the paint job came out great.

The reason I’m tell’n you all this is because you can go broke repairing the damage caused by using high pressure and misusing chemicals. Secondly, if the painter used the system I’m about to show you, he could have washed my house with less than 2 gallons of Clorox and 1/3 gallon of detergent.  Thus reducing his chemical cost from over $70 to about $15. That’s like making $130 extra a day if just two house were washed.

Our system is successful because we have developed a process that combines the right equipment, the right setup, the right chemicals with the right chemical delivery system. The result is an exterior cleaning rig that cleans better, faster, safer and at less cost than any of our competitor’s.



The plague that infects homes in nearly

80 percent of the United States

Gloeocapsa Magma is a species of algae that causes black streaking and discoloration on asphalt/fiberglass shingles. If left untreated this algae will feed and grow until the entire roof becomes infested. Meanwhile, the roof becomes unsightly, and the algae covers the roof granules, which leaves the shingles unprotected from the sun’s UV rays. Without UV protection, a roof will experience premature failure. The algae has migrated form Florida and the Gulf Coast are to cover about 80% of the nation.


Let’s talk about the roof cleaning business

Our competitors are scared of roofs, we aren’t!

Another milestone in our business was the development of our “ROOF GITTER”, which enables us to clean the steep pitched roofs that are not safe to walk on.  This accessory gave us a leg up on the competition and made us so profitable we kept it off the market for years.  A local competitor has attempted to copy it and sells it nationwide, but believe me, its effectiveness is nowhere near that of the “ROOF GITTER”.  With our system you will learn how to make one.

Since you’ve found this site, I assume you are looking for a business that can be run either full or part time and produces a pretty decent income.  If so, read what a veteran roof cleaner has to say about it.

First, roof cleaning is one of the few businesses that is not floating in a sea of competition, there ain’t non, or at least there’s very little.  Take a look around town; you’ll see thousands of roofs needing cleaned and nobody cleaning them. Most people don’t even know their roof can be cleaned; they think it needs replaced.  Most pressure washing guys are afraid to get on a roof.  And even if you have competition, there’s enough roofs to go around for everybody. We rarely run into the other guy.

Second, the investment needed to get into the business is nil compared to your return on investment (ROI).  It’s entirely possible and common place to earn $75,000 or more on an initial investment of $2000 or less in equipment and chemicals.  

Third, since roof cleaning may be new in your area you will have to be persistent to make your first sale.  But, once you get a few jobs under your belt, pictures taken and the neighbors gawking at the roof you just cleaned, you are on your way to seeing your business snowball.

Fourth, roof cleaning is not difficult, but its not as simple as the chemical web sites pitch.  There are companies pitching chemicals that will clean roofs simply by spraying it on the roof and letting mother nature rinse it clean.  That’s fine, if you want to wait six months to get your money.  No matter what they tell you, the roof will have to be rinsed off after applying chemicals, and if you think a garden hose with street pressure will do the job, you are absolutely correct, if you have a week to spend rinsing. Fact is, YOU WILL NEED SOME PRESSURE GREATER THAN STREET PRESSURE if you expect to finish the job in a timely manner.  Therefore you will have to modify your pressure washer so it will produce just enough pressure to rinse but not damage the shingles.

Fifth, there seems to be a lively and sometimes heated discussion over which chemicals are best for cleaning roofs.  This author, doesn’t give a hoot.  Both have pros and cons.  I haven’t seen any roofs ruined with either chemical.  I am somewhat partial tos and shrward sodium hydroxide because it seems to do a better job of restoring the roof colors, and is easier on plantubs, however it is more time consuming to rinse.  As for making your own chemicals, you are welcome to experiment all you wish, but we’ve found it ends up costing more.  Besides, I like the idea of using the other guys product liability insurance and MSDS sheets.  

If you’re concerned about the other guy finding out what chemicals you are using, we will tell you where to get them privately labeled

Below, I am offering my book that gives step-by-step instructions for setting up a low-pressure cleaning rig and building a “Roof Gitter” for cleaning steep roofs.   

You may be asking yourself,

“Why is this guy offering this valuable knowledge for only $49?

Because, I’m 70 years old, retired, and have done made my money. Most of all, it gives me great satisfaction to be able to help someone get ahead in life.


    John White


          You’ll eliminate a lot of competition just because your rig will have far more capabilities. 

You will learn how to build and set up a system capable of both low-pressure and high-pressure cleaning


Clean highly profitable steep pitched roofs without getting on them

CLEAN STEEP PITCHED ROOFS EITHER FROM THE EDGE OR SITTING ON THE RIDGE (some single story roofs may be cleaned from the ground)

Receive step-by-step illustrated instructions for building the Roof Gitter

The “Roof Gitter” has a bracket and clip that will accommodate a 1″ diameter extension pole.  If you prefer to straddle the roof ridge then an extension pole is not needed.  Just let the “Roof Gitter” roll down the roof, pull it back up with the hose, move it over about 18″ and repeat.

The “Roof Gitter” is made with commonly available components which may be purchased at hardware and agricultural supply stores.  Our instructions are simple to follow and accompanied by step-by-step pictures.  


            weight: 9 lbs

            operating psi: 800-1000 (pressure washer should have pressure adjusting valve)

            gpm: minimum 2.5

            spray width: 20″

            pressure on roof surface: approximately 50 psi    

            hose fittings: adaptable to all pressure washing  hoses

            wheels: 4 lightweight soft, assures consistent 90 degree spray pattern on surface

            nozzles: atomizing with anti clog filters (higher or lower gpm nozzles are only $5 each)

            reach: can be used with up to 24′ painter’s extension

Thank you for your time and I wish you the best,

John White,



Click here and go to the official website of the seller to purchase or learn more about this product!!!