When regular cleaning methods fail to remove stubborn stains and dirt, pressure washing can save the day. The intensity of high-pressure water blasts excels at clearing away grime and debris—but intensity isn’t always a good thing.
Pressure washing is so strong that, in some cases, it can end up damaging the surfaces instead of cleaning them. As such, knowing which surfaces are safe for pressure washing and which aren’t is a must for protecting your home. Let’s break down several examples of what things you can pressure wash and what is better off being cleaned another way.
What Can Be Pressure Washed Safely?
- Concrete Driveways and Sidewalks – Hard surfaces like concrete driveways and sidewalks can withstand high-pressure water without damage. Dirt, mildew, and stains are much easier to remove with the strength of high-pressure blasts of water. A pressure washing machine with a moderate setting prevents unnecessary erosion and restores the surface’s original appearance.
- Brick Walls and Pavers – Durable materials such as brick and stone handle pressure washing without issue. Using a lower-pressure setting and a wide-angle nozzle avoids mortar damage. However, be mindful that older bricks may be more susceptible to damage, which is why you should take caution when spraying them.
- Vinyl Siding – Modern vinyl siding can withstand pressure washing when done correctly. Holding the wand at a downward angle prevents water from seeping behind the panels. Using a mix of soap and bleach removes mold, algae, and mildew without harming the material.
- Wood Decks and Fences – Treated or sealed wood surfaces handle moderate pressure washing when done carefully. Using too much force can splinter the wood, so a low-pressure stream works best. A brush attachment on the machine can help scrub away stubborn dirt and stains.
- Metal Roofs and Gutters – Sturdy metal surfaces such as aluminum and steel endure pressure washing without damage, making it a great way to quickly eliminate loose debris and moss. However, avoiding excessive pressure near seams is important for preventing leaks and structural issues.
What Shouldn’t Be Pressure Washed?
- Asphalt Shingles – Roofing shingles suffer significant damage under high-pressure water. Granules that protect against weather erosion loosen easily and can potentially lead to premature roof deterioration.
- Stucco – Fragile materials like stucco can crack or chip under intense water pressure. As such, using a gentler cleaning method is essential for preventing surface damage.
- Painted Surfaces – Exterior paint can peel away when hit with a pressure washer—even durable outdoor paints wear down over time and become vulnerable to damage. If the surface contains lead paint, pressure washing creates a hazardous situation by spreading toxic particles.
- Outdoor Light Fixtures and Electrical Components – Water under high pressure seeps into electrical fixtures and creates a safety hazard. Electricity and water exposure lead to short circuits, costly repairs, or even fire risks. As a result, cleaning these areas by hand is the safest way to remove debris.
- Delicate Landscaping Features – Decorative elements such as fountains, statues, and wooden garden furniture can be damaged from high-pressure water, especially if they’re older. The force removes finishes, erodes surfaces, or even knocks items out of place. A garden hose or a squeegee is a much gentler cleaning option.
- Solar Panels and Glass Surfaces – A pressure washer should never be used on a solar panel or delicate glass surfaces. The high-powered spray can crack panels and cause permanent damage.
- Outdoor Air Conditioning Units – Spraying a pressure washer directly on an air conditioning unit can damage its internal components.
- Awnings, Canopies, and Patio Covers – Fabric or plastic awnings and patio covers tear easily under the force of a pressure washer. The intense stream weakens the material, making it more susceptible to rain and heat damage. A soft brush and mild soap effectively remove dirt and mildew.
- Delicate Flooring and Decorative Cement – While standard concrete withstands pressure washing, some decorative cement surfaces and delicate floor tiles risk damage. Using a high-powered machine can strip sealants and cause permanent stains and erosion.
- Outdoor Wooden Structures and Older Decks – Aged wooden surfaces, especially older decks, weaken over time and splinter under high-pressure washing. Using a powerful spray can damage them and ruin their appearance, so seeking out safer cleaning methods is in your best interests.
- Plastic and Metal Lawn Decorations – Decorative plastic and lightweight metal ornaments bend, crack, or lose paint when exposed to high-pressure washing. Heat and weather already weaken these materials over time, making them even more vulnerable. A gentle hose rinse or a damp microfiber cloth removes dirt without causing harm.
- Glass Windows and Doors – A high-pressure spray can crack or shatter glass surfaces, especially older or weakened windows. Using a squeegee and a gentle window cleaner is a much safer way to remove dirt and grime and preserve the integrity of the glass.
- Delicate Outdoor Electronics and Appliances – Outdoor electronics should never be exposed to a pressure washer. Water forces its way into electrical components, causing malfunction or permanent damage. A damp cloth and mild detergent work best for cleaning these surfaces.
For Professional Pressure and Soft Washing Services, Call Patriot Exterior Cleaning!
If you want your home pressure washed safely, turn to the professionals at Patriot Exterior Cleaning! We specialize in pressure washing in Willis and the greater Houston area and also offer window cleaning, roof washing, and more to ensure your property looks the best it can possibly be. Get in touch with our team today to schedule an appointment for your home!