Do-it-yourself Power Washing
You can avoid making the same mistakes as most homeowners that try to power wash house siding themselves by reviewing this list of common mistakes. You’ll also learn how to stay safe and how to clean the house without causing damage to your property.
Using too much water pressure and spraying at too steep of an upward angle can force water behind the siding where it can cause mildew and water damage. Too much pressure sprayed at vinyl siding at an upward angle forces water under the lip of the siding and in through the weep holes of the siding. The weep holes are designed to drain moisture, not large amounts of water. Too much pressure can also leave unsightly wand marks on the siding by removing oxidation; too much water pressure can also crack the siding, knock it loose, or completely blow it off the house.
Cleaning vinyl siding with hot water is also a mistake. Hot water can warp and distort vinyl siding causing it to loosen or pop out of place. Hot water is also very hard on plants and shrubbery and may even damage or kill them. The only benefit to hot water is it can speed up the cleaning process and cut down on the amount of cleaning solution used but the risk isn’t worth the reward. The same results are achievable when using cold water and the right cleaners but without the risk of damage to the siding or landscaping that hot water can cause.
Letting the cleaners dry on the house or using the wrong cleaners can cause streaks on the siding. Glass windows can also be damaged or etched by allowing chemicals to dry on them. We highly recommend having a good knowledge of cleaners for washing houses. Some cleaners can not only leave your property damaged but can also cause severe injury to you or others if handled improperly. Always wear the proper protective gear like a respirator, gloves and safety glasses.
Using a pressure washer from a ladder is very dangerous and is not recommended. Serious injury or death can occur. Without the proper equipment, some home owners are tempted to get up on a ladder and attempt to pressure wash their siding. Pulling the trigger on a pressure actuated pump always causes the spray wand to kick and could easily knock you off of a ladder or any elevated platform.
If you still plan on doing your own power washing project then follow some of these simple tips.
Ensure that the power washer you are going to use will put out less than 1000 psi. Even most big box store bought machines will put out 2000-2500 psi which can easily damage vinyl siding, asphalt shingles and even wood decks. To achieve a lower pressure the tip or nozzle must be changed at the end of the gun to one with a larger orifice. The correct nozzle will still allow the maximum amount of water flow or gallons per minute, which is where your cleaning speed comes from, but will cut back the pressure as to not cause damage to the surface.
Be careful if you’re making your own house washing chemicals. For example, mixing bleach and ammonia can create a poisonous gas. We suggest that home owners buy a siding wash that’s available in most hardware stores and follow the manufactures guidelines for the product. Leave the stronger agents to the professionals or you may end up doing more damage than good.
Allow the cleaning solution to dwell on the siding for several minutes, then using low pressure, rinse the product from the siding. Make sure when you rinse that you start at the top and work your way down. Also start at one end and work your way across to the other end. Rinse in the direction opposite of the vinyl laps so you don’t force water behind the siding. Do not stop or vary your distance from the siding, or it will cause the surface to be cleaned unevenly. Be sure to rinse the siding and windows thoroughly and to rinse the landscaping before, during and again after the cleaning process to assure no soap is allowed to dry on them.
Following these guidelines and doing some more research can help to eliminate the risk of damage or injury. If you are still unsure of taking on your own pressure washing project, you can call a professional exterior cleaning contractor in your area and see what they can do for you.
The Industry of Pressure Washing
The industry of pressure washing or power washing has never been considered, by most, to be a serious profession. With typically low start up costs, many fly by night companies come and go leaving a bad taste in the mouth of many unsatisfied customers. It happens in all industries, but the pressure washing industry seems to attract almost anybody out of a job or sick of working for the man.
A couple hundred dollars and a trip to the local home improvement store to purchase a pressure washer, and they are in business. They hit the road running with the attitude that they are going to be the next millionaire. On a shoestring budget, they print up their own fliers to hang on telephone poles and go knocking door to door asking for work only to be let down by an enormous wave of no’s.
To combat their lack of marketing and sales knowledge, many of these companies fall into the trap of offering a lower price than the competition, or low balling in a desperate attempt to get work. They offer ridiculously low prices and then have to take short cuts in order to make a profit. Many of them can’t afford general liability insurance or workman’s compensation insurance so they operate without it.
With their less than mediocre equipment and knowledge, they damage your property and give you a horrible service. Some of the horror stories my customers have told me about their past experiences with one of these types of companies are disturbing to say the least. From blowing out people’s window screens to leaving wand marks all over their vinyl siding or scarring up their expensive decks to putting an inferior sealer on it.
I’ve heard it all and the scarier part is; what have these kinds of companies done to their property that they didn’t see? Things like forcing water in behind the vinyl siding by using too much water pressure or using only water to clean the home, meaning the mold and mildew would return in a few months because it was never killed and because they did not apply a protective wax to prevent re-growth. I’ve heard of some unethical contractors cutting their customers deck stain 50% with mineral spirits to cut down own their costs.
Some even skip the important step of wood brightening or neutralizing during the wood restoration process. All this boils down to giving the pressure washing industry a bad image, which breeds more fly by night companies with the misconception that pressure washing is easy and that anybody can start up with a few dollars and do it. It also forces a lot of homeowners to result to doing their own pressure washing which can be dangerous and definitely painstaking.
The pressure washing industry, in my opinion, is in need of an organization or association that could require contractors to become licensed. Such an organization could set in place rules and guidelines and offer testing and membership opportunities. This would help homeowners in choosing only a reputable company that would meet these guidelines or that were licensed. There have been attempts by organizations in this industry in the past, but their focus has gone off course and contractors have turned their backs on them.
There is a ban of reputable pressure washing contractors, spread out all over the country that I believe are the future and possibly only hope of this industry. They network by internet, phone, informal meetings, conventions, and round tables during all times of the year. They provide free information to each other and to new contractors interested in pursuing a career in pressure washing.
Many have participated in what they call “labor for learning” where they invite a new, inexperienced contractor to come and work with them, and unselfishly show them the ropes in trade for some labor. This is a great concept because there is no better way to learn something than by hands on experience. Others have also given away free valuable information through formal and informal presentations at round table meetings, helping to shave years off of the learning curve of newer contractors.
Many also give away their knowledge by participating on message boards on the internet, helping others on a daily basis. They network together to hone their own skills and to teach others the correct methods and techniques that are involved in providing a quality pressure washing service.
This is all in an attempt, by people who are passionate about what they do, to solidify the professionalism of the pressure washing industry in the eye of the public.
