Get matched with top pressure washers in Kill Devil Hills, NC

The recommended PSI (pounds per square inch) for cleaning vinyl siding can vary, so it's best to consult the manufacturer's guidelines. Generally, vinyl siding can handle high pressure, from 2,500 to 3,500 PSI. For comparison, more delicate materials like wood and aluminum siding should not face more than 1,500 PSI. To safely disperse the pressure on vinyl, use a tip with a wider spray span, such as a green (25-degree) or yellow (15-degree) nozzle. For routine cleaning of light dirt, a garden hose with a spray nozzle may be sufficient. Always exercise caution to avoid using excessive pressure that could damage the siding.

Cedar shake siding requires regular cleaning, or else it will grow mold and algae. However, a pressure washer can easily damage your cedar shakes if the water pressure is too high. We recommend cleaning with a garden hose instead. Review our guide to cedar siding maintenance if you’ve just finished your installation.

The white nozzle is your best choice for power washing indoors. The white nozzle, or the 40-degree nozzle, comes with a pressure even lower than the standard green nozzle but still has enough force to clean the surface. It works great for painted and wooden surfaces. It also doesn’t damage more delicate materials like ceramic or tiles. However, avoid pressure washing delicate furniture, caulking, and other surfaces that require more tendered touches than regular surfaces.

Yes, it is highly recommended to wash a house's exterior before painting to ensure the best results. Cleaning the surface removes dirt, dust, grime, mold, mildew, and old paint, which allows the new paint to adhere properly and results in a smoother, long-lasting finish. Failing to clean can lead to poor adhesion, peeling, and an uneven appearance. Pressure washing is an efficient method for this, but be cautious not to use excessive pressure that could damage siding or wood. For materials like vinyl or stucco, soft washing might be a better option. After washing, allow sufficient drying time, such as three to four days, before painting to prevent trapping moisture, which can cause blistering or peeling.