
Your home should feel good to pull up to. When siding is covered in dirt, or your driveway is stained, it quietly drags down that feeling. We help homeowners in St. Charles bring back the clean look their property deserves.
We use professional pressure washing to remove grime, algae, and stains that slowly build up over time. The difference shows right away. Your home looks brighter, feels cared for, and gives you that quiet pride every time you pull into the driveway.




We are incredibly thankful for the kind words our customers share after we complete a project. Their feedback means a lot to us. Check out the beautiful things people have to say about us:
Every property is a little different, so pricing can vary. The only way to give an accurate quote is by learning about your surfaces, stains, and goals. Once we understand the details, we can provide a clear and fair estimate for your pressure washing project.
Several things can affect the price of pressure washing. Each property is different, and the details of the job matter. Here are some common factors that can influence the final cost.
Surface Type
Different surfaces require different pressure levels and cleaning solutions. Concrete, vinyl siding, brick, and wood all need careful treatment to remove dirt while protecting the material from damage.
Size of the Area
Larger driveways, patios, or siding areas naturally take more time and equipment to clean. The total square footage of the surfaces being washed plays a major role in determining the final price.
We believe homeowners deserve clear answers. We give realistic timelines and straightforward budget expectations so you know exactly what to expect before we begin your pressure washing project.

When we agree on a price, we respect it. We plan carefully and communicate clearly so there are no surprises along the way. We want you to feel comfortable and confident from the moment we begin.

We also respect your time. When we schedule your pressure washing service, we show up ready and finish the work as promised so you can enjoy your clean home right on schedule.
Getting your home cleaned should not feel stressful or confusing. We keep the process simple and clear. We handle the work while you enjoy watching your home look better every step.


Pressure washing works by using pressurized water from a specialized machine to remove dirt, grime, dust, mud, and other buildup from outdoor surfaces. The pressure washer pushes water through a hose and out of a spray wand or nozzle at high pressure, measured in psi (pounds per square inch).
The strong spray loosens and washes away things like mildew, mold, debris, and oil stains that build up over time. Some models use soap or cleaning solutions to help break down tough stains. After that, the area is thoroughly rinsed with clean water so the surface is left fresh and clean.
A pressure washer can clean many outdoor surfaces around a house. Some common examples include driveways, patios, decks, concrete surfaces, vinyl siding, fences, sidewalks, and garage floors.
Different materials need different levels of pressure. For example, concrete can handle higher psi, while wood or siding requires a softer method to protect the material. The right nozzle, distance, and spray wand setting help ensure the cleaning is effective without causing damage.
Yes, pressure washing can often reduce or remove oil stains from concrete surfaces like driveways and patios. In many cases, a special soap or cleaner is used before the wash to break down the oil.
The pressure washer then uses strong pressurized water to lift the grime from the concrete. Results depend on how deep the oil has soaked into the concrete or into small cracks and holes, but most homeowners notice a big improvement after the cleaning.
Yes, there is a small difference. Pressure washing uses high pressure water for cleaning, while power washing uses heated water in addition to strong pressure.
Both methods can clean dirty surfaces, but heated water can help remove heavy grime, oil, and mildew faster. For example, power washing may work better for very greasy concrete areas, while regular pressure washing is often perfect for siding, decks, and patios.
If the pressure is too strong or the spray wand is held too close, a pressure washer can damage wood, paint, or vinyl siding. That is why it is important to use the right psi, nozzle, and distance for each surface.
For example, softer materials like siding or decks require lower pressure and careful spray control to protect the materials. A quick test in a small area is often done before the full job to make sure the method is suited for that surface.
Most residential pressure washing jobs take a few hours depending on the size of the yard, driveways, patios, or siding being cleaned. Larger homes with more surfaces naturally take longer.
The amount of dirt, mold, dust, or debris also affects the time. Once the cleaning is finished, the area may remain wet for a short time, but most concrete surfaces and decks become fully dry within several hours depending on weather conditions.
Not always. Many homeowners choose to be away while the job is completed. As long as the crew has access to the areas that need cleaning and a water source from a hose, the work can usually continue without the homeowner present.
Before we begin, we may ask you to move vehicles, outdoor objects, or fragile stuff in the yard. This helps keep everything safe while the pressure washer does the work.
Some homeowners choose to purchase or rent a portable pressure washer. There are many models, including electric pressure washer units and gas powered models. These machines often produce anywhere from a few gallons per minute (gpm) up to higher levels depending on the unit.
However, using a pressure washer correctly takes practice. The wrong pressure, distance, or nozzle can damage paint, push water behind siding, or even create safety hazards. For example, the strong spray can even cut into softer materials or damage windows and fabrics if not handled carefully.
A professional crew already has the right tool, wand, and machine for each job, which helps protect your house while delivering a deep cleaning.

Many homeowners tell us the same thing after their first cleaning. They wish they had done it sooner. Pressure washing instantly improves how your home looks and feels.
Clean surfaces make everyday life better. Your driveway looks welcoming, your siding looks brighter, and your home stands out again. We take pride in helping St. Charles homeowners love their property again. Contact us at (636) 633-6940 and we will get started.
St. Charles, MO, is known for its historic charm and welcoming neighborhoods. From the shops and restaurants along Main Street to the scenic views at Frontier Park and the Missouri River, it is a city full of pride. Families visit landmarks like the Lewis & Clark Boat House and Historic St. Charles every year. We are proud to help homeowners here keep their properties clean and beautiful. If you live in St. Charles and need pressure washing, call us at (636) 633-6940.

Gateway Power Washing provides professional exterior cleaning services in Saint Charles, O’Fallon, St. Peters, Wentzville, Lake St. Louis, and surrounding Missouri areas, specializing in driveway cleaning, house washing, patios, sidewalks, and commercial pressure washing.
Other services: Driveway Pressure Washing • House Washing • Patio Pressure Washing • Deck Pressure Washing • Gutter Cleaning Service • Roof Cleaning Near Me • Fence Pressure Washing • Garage Cleaning • Dumpster Pad Cleaning • Truck Fleet Washing
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