A pressure washer is highly effective for cleaning hard outdoor surfaces like concrete driveways, brick patios, sidewalks, and garage floors. You can also use it to wash home siding, wooden decks (with caution), and outdoor furniture. Always use the correct nozzle to avoid damaging softer materials.
Whether you're cleaning a driveway, sprucing up your deck, or preparing your house for a fresh coat of paint, a pressure washer is one of the most powerful tools for the job. But if you've never used one before, it can feel a bit intimidating.
Yes, you can pressure wash granite, but it must be done with extreme caution. Because granite is a dense, durable natural stone, it can generally handle moderate pressure, but high-pressure blasting can permanently etch, crack, or strip the finish.
No, you should never use a high-pressure power washer on James Hardie (fiber cement) siding. The intense pressure can gouge the board, damage the painted finish, and force water into seams, which leads to mold and rot. High pressure will also void the manufacturer's warranty.
A pressure washer is a versatile tool that can tackle much more than just driveways. Beyond the standard tasks, you can safely use it to clean and maintain dozens of areas around your property—from blasting away wasp nests to detailing your car's undercarriage.
From the mundane to the mysterious, here are 10 time-saving uses for a high pressure washer.
Never use a pressure washer on asphalt shingle roofs, older or peeling paint, windows, electrical fixtures, or delicate woods like cedar. High-pressure water can strip protective coatings, shatter glass, force moisture behind siding, and cause severe electrical or property damage.
For a 2,000 square foot house, you should generally charge between $400 and $800, with a baseline national average of about $0.25 to $0.45 per square foot.
Yes, October is actually one of the absolute best times of the year to powerwash. The mild, cool temperatures are perfect for preventing soaps from drying out too quickly while helping you clear away summer grime before the freezing winter weather sets in.
Yes, pressure washing can absolutely damage siding if done incorrectly. High-pressure water can crack vinyl panels, dent aluminum, strip paint from wood, and force moisture behind the walls causing mold. Industry professionals recommend a "soft wash" method instead, using low-pressure pumps and specialized cleaning detergents.
Do not use WD-40 on granite. Because granite is a porous natural stone, the penetrating oils and petroleum distillates in WD-40 will soak into the surface and leave permanent, dark oil stains. Furthermore, WD-40 will strip and dissolve any protective wax or sealants that have been applied to your countertop.
Arlington National Cemetery and other federal sites primarily use D/2 Biological Solution to clean headstones. D/2 is a pH-neutral, biodegradable cleaner that safely removes mold, mildew, algae, and air pollutants without damaging the stone.
Granite gets its characteristic sparkle primarily from mica flakes and quartz crystals embedded within the stone.
Avoid power washing delicate or porous surfaces. High-pressure water can strip protective granules off asphalt roofs, gouge softwoods like cedar, crack vinyl siding, shatter glass windows, and blast away aging brick mortar. For these areas, rely on a gentle "soft wash" (low-pressure water combined with specialized detergents) to safely remove dirt and grime.
Yes, you can power wash a fridge, but it is only recommended for outdoor or garage refrigerators where water can drain safely on the ground. It should never be done indoors because it will create a massive mess and can ruin your floors.
Best Time to Pressure Wash Your House
Late spring, after the pollen has settled down, is the perfect time to pressure wash your home. Since pressure washing requires closely examining your home's siding, it's also a great time to inspect the exterior of your home for rot, pest invasions, and areas that need attention.
Never power wash your house in freezing weather (below 40∘𝐹), during high winds, or in direct, scorching sunlight. Avoid using high pressure on delicate materials like wood, stucco, or old siding, and never spray directly at window seals, electrical outlets, or up under the eaves to prevent internal water damage.
Operating an electric pressure washer in temperatures below 0°C / 32°F is not advised as it may result in equipment failure and safety issues. Furthermore, most warranties do not cover frost damage, making this a potentially costly mistake.
Folklore traditions state you shouldn't do laundry on New Year's Day. According to superstition, washing clothes on the first day of the year will "wash away" your good luck, abundance, or blessings for the year ahead. Some versions even warn that it signifies "washing a loved one out of your life".
Using the Wrong PSI or Nozzle
Excessive PSI can damage concrete, strip paint, erode protective coatings, or force water into sensitive equipment components. On the other hand, insufficient pressure may leave behind stubborn grime, leading operators to spend more time cleaning or repeat the job altogether.
Pressure washing is absolutely worth it for boosting curb appeal, removing allergens, and preparing surfaces for painting. However, high-pressure water can easily damage wood siding, strip paint, or shatter window seals. Instead, opt for "soft washing"—a low-pressure detergent spray—to clean safely and effectively.
Running a pressure washer for 1 hour typically costs between $𝟎.𝟐𝟎 and $𝟑.𝟓𝟎 for electricity or gas, plus about $𝟐.𝟎𝟎 for water. Your exact cost depends on whether your machine uses gas or electricity, your local utility rates, and water usage.
Pressure washing’s intense force can easily cause severe, costly damage to your property if misused. High-pressure water can strip paint, gouge wood, shatter glass, and destroy delicate roofing. It also poses major health and safety risks, as the high-powered stream can cause severe injection wounds.
The average lifespan of a pressure washer is rated by operating hours rather than years, typically lasting between 3 to 10+ years depending on the model. Gas-powered models usually last 5 to 7 years (300 to 500+ hours), while electric models last 3 to 5 years.
When you pressure wash, the dirt doesn't vanish. Instead, the high-pressure water suspends the grime and flushes it away as dirty runoff. The resulting sludge naturally follows the flow of gravity and water, ultimately ending up in soil, storm drains, or sanitary sewer systems.