Get matched with top pressure washers in Cornwall, NY

This answer is a bit tricky because experts say both. You should apply your cleaning solution from bottom to top, but rinse from top to bottom to avoid streaking. When it comes to multi-story houses, you’ll want to start at the top floor and work your way down, but follow the above instructions for each level as if it were an independent structure, rather than washing the whole house as one unit.

You should avoid using a pressure washer on any surface or item that could be damaged by the high-pressure spray, as some materials are too delicate to withstand the force.

Key items and surfaces to avoid include:

• Electrical Components: Never pressure wash electrical systems, as water can cause short-circuits and create a safety hazard. This includes utility meters, breaker boxes, electrical outlets, generators, and HVAC or air conditioner units.

• Delicate and Fragile Materials: Fragile items can crack, shatter, or be stripped by the pressure. Avoid pressure washing windows, glass, light fixtures, shingled roofs (especially asphalt), and stucco.

• Painted, Stained, or Sealed Surfaces: Unless your goal is to strip the finish, do not pressure wash painted surfaces, stained wood (like decks), or anything with a protective seal that could be stripped away. Be especially cautious with older surfaces that may contain lead paint.

• Soft Woods and Certain Decking: Delicate surfaces like softwood, composite decking, and antique or wooden patio furniture can be etched or damaged. If you must wash wood, use a lower-powered pressure washer with a wide-angle nozzle to prevent damage.

• Living Things: Never use a pressure washer on people, pets, or plants. The force can cause serious injury and will destroy landscaping.

It’s important to avoid power washing your house during freezing temperatures because the excess water can freeze on surfaces and cause damage. You should also avoid doing this task during heavy wind or rain because the water spray becomes less effective and could spread debris. Don’t power wash your home if your siding is cracked, loose, or peeling because the high pressure can worsen the damage. Lastly, if your home has delicate materials like softwood or stucco, consider gentler cleaning methods to prevent structural harm.

Depending on the amount of experience you have with power washing or pressure washing, hiring a professional is likely a better option. Using a pressure washer requires a bit of know-how to avoid damaging siding, trim, roofing shingles, and even the seals on your windows. Holding the pressure washer too close to the material you’re cleaning can cause damage to the surface. You can wash your home’s exteriors with a garden hose, but high-pressure cleaning should be done by professionals.