Most homes benefit from professional house washing about once a year, although some properties may need it more or less often. Homes surrounded by trees, located in shaded areas or exposed to excess moisture may develop algae, mildew and dirt more quickly. If your siding is starting to look green, dingy or stained, it may be time for a professional cleaning.

Pressure washing relies on higher-pressure water to clean durable surfaces, while soft washing uses lower pressure combined with professional cleaning solutions to remove algae, mildew, dirt and organic buildup. Soft washing is typically the preferred method for house siding because it provides a thorough cleaning without exposing more delicate exterior materials to unnecessary high pressure.

Yes, when performed properly. Soft washing is designed to clean siding and other exterior surfaces using low pressure rather than relying on force alone. The cleaning method should always be adjusted based on the type and condition of the material, helping remove buildup while protecting siding, paint, trim and other exterior finishes.

Professional house washing can remove many of the green algae, mildew, dirt and organic stains that commonly build up on siding. These stains are especially common on shaded or moisture-prone areas of Long Island homes. Professional cleaning solutions help break down the buildup so it can be safely rinsed away, restoring a cleaner and brighter appearance to your home's exterior.

House washing can often include areas such as soffits, fascia, exterior trim and other washable surfaces around the home. The exact areas included may depend on the condition and material of each surface. If there are specific areas you'd like cleaned, mention them when requesting your estimate so they can be evaluated and included in the recommended service.

Standard house washing can remove dirt, algae, mildew and other surface buildup, but oxidation and permanent fading are different issues. Oxidized siding may have a chalky or uneven appearance that does not disappear with normal washing and may require a specialized oxidation-removal service. A professional evaluation can help determine whether the discoloration is surface buildup or oxidation before cleaning begins.

Professional house washing should include precautions to help protect the landscaping surrounding your home. Plants and flowers can be rinsed and protected before, during and after the cleaning process as needed. It is important for the cleaning company to pay attention to nearby landscaping and use appropriate cleaning methods around sensitive areas.

House washing prices can vary based on the size and height of the home, the type of siding, accessibility and the amount of dirt, algae or staining present. Larger homes or properties with heavier buildup may require additional time and cleaning. The best way to determine the cost is to request an estimate based on your specific home and cleaning needs.

Many residential house washing projects can be completed within a few hours, although the exact time depends on the size of the home, the number of stories, accessibility and the amount of buildup that needs to be removed. Larger properties or homes requiring additional exterior cleaning services may take longer.

Before your house washing appointment, make sure windows and doors are securely closed and move outdoor furniture, decorations or other items away from the home when possible. Vehicles should also be moved away from the work area. It's helpful to provide access to gates and exterior areas that need to be cleaned and let the cleaning team know about any loose siding, damaged areas or other concerns ahead of time.