How to Prepare Your Home for a Professional Pressure Washing Service

You've scheduled a professional pressure washing service — great. Now what? Most homeowners assume they can just show up and let the crew get to work, but a small amount of preparation on your end can dramatically improve the results you get and protect your property, plants, and personal items from accidental damage. This guide walks through everything you should do before the pressure washing team arrives.

Why Preparation Matters

Professional pressure washing equipment moves a lot of water at high pressure. A surface cleaner attachment for a concrete driveway can throw spray in multiple directions, and water runoff from siding washes can carry concentrated cleaning solution into areas you don't want it. Cars, patio furniture, potted plants, outdoor decorations, and open windows are all vulnerable if they're not moved or protected before the job starts. The few minutes you spend preparing will prevent headaches after.

Beyond protecting belongings, preparing the work area helps the crew work efficiently — which typically means a better job. If they have to stop and move items themselves, they may not reposition everything correctly, and they'll spend time on logistics instead of cleaning. When the surfaces are clear and accessible from the start, the cleaning is more thorough and consistent.

Move Vehicles and Equipment

Your driveway can't be cleaned if there are cars parked on it. Move all vehicles — including anything parked on the street that might be close to the work area — before the crew arrives. This seems obvious, but it's one of the most common delays we encounter on job sites. Even a vehicle parked at the end of the driveway will prevent complete coverage of that section.

• Move all vehicles off the driveway and ideally off the property
• Move motorcycles, bikes, and scooters that are typically stored in the driveway or garage apron
• Relocate lawn mowers, trailers, or equipment stored on concrete surfaces being cleaned
• Move portable basketball hoops, cornhole boards, or other outdoor game equipment
• Relocate garbage and recycling cans — both for access and to avoid water intrusion

Clear Patio and Outdoor Living Areas

If your patio, pool deck, or outdoor living area is being cleaned, everything on it needs to come off. Outdoor furniture, grills, fire pits, planters, rugs, cushions, toys, and decorative items should all be moved to a covered area or at least relocated well away from the work zone. Even if the crew is careful, high-pressure overspray can reach 10–15 feet in some directions, and direct contact with pressure washing spray can damage outdoor cushions, electronics, and delicate decorations.

Pay special attention to outdoor rugs. These trap water and can take days to dry in Oregon's climate, and if they're left near a freshly cleaned surface, they'll immediately reintroduce dirt and organic material. Roll them up and store them indoors or in a dry garage until the surface has completely dried — which typically takes 24–48 hours in warmer weather, longer in fall and winter.

Protect Your Plants and Landscaping

This is one of the most frequently overlooked preparation steps, and it's especially important when soft washing is being done on siding or surfaces near garden beds. Soft washing solutions contain surfactants and cleaning agents that are highly effective on biological growth but can burn or stress plants if they're directly sprayed or if concentrated runoff pools around their roots.

• Water your garden beds and shrubs thoroughly the day before — well-hydrated plants handle chemical exposure better
• Cover sensitive plants with plastic sheeting or drop cloths before the crew starts
• Move potted plants well away from the work area
• Inform the crew of any particularly sensitive plants or recently planted seedlings
• After the job, rinse all nearby plants and landscaping with plain water to dilute any residual cleaning solution
• Do not irrigate treated areas for 24 hours — let the cleaning chemistry do its work

A reputable pressure washing company will pre-wet landscaping near the work area as standard practice, but it's still your job to point out anything especially valuable or delicate. A newly planted rose bush or vegetable seedlings are worth flagging explicitly — the crew can take extra precautions if they know in advance.

Close All Windows, Doors, and Vents

Before any exterior washing begins, close all windows and exterior doors on the side of the house being cleaned. Water gets into gaps you wouldn't expect — especially around older windows with worn weatherstripping. Even a small amount of water intrusion can damage interior walls, floors, and finishes, and it's completely preventable. Check second-floor windows too, which homeowners often forget.

If you have a window AC unit or through-wall vent on the side being washed, cover it with plastic sheeting and tape it down before work begins. Dryer vents should also be taped or covered — if the crew is washing the siding directly around the vent, it's possible for water to get pushed inside. This is rare with professional equipment and technique, but it's not worth the risk.

• Close all windows on every floor on the side being washed
• Close and lock exterior doors — locked doors are harder for pressure spray to push open
• Cover or tape any wall-mounted air conditioners or through-wall vents
• Tape over dryer vents, kitchen exhaust vents, and bathroom fan vents on the exterior wall
• Close the garage door if the exterior front face is being washed
• Disconnect and store any outdoor electrical cords, string lights, or extension cables

Secure or Remove Outdoor Electrical Items

Water and electricity don't mix, and professional pressure washing involves a lot of water moving fast across exterior surfaces. Before the crew arrives, unplug and remove all outdoor electrical items: string lights, outdoor speakers, Ring doorbells if they're within range of the spray, and any extension cords. If you have hard-wired exterior lighting near the work area, let the crew know so they can work carefully around it.

Outdoor electrical outlets typically have weatherproof covers, but high-pressure spray can sometimes overwhelm these covers, especially older ones. It's worth covering any exterior outlets in the immediate work zone with plastic and tape as an extra precaution. This is rarely a problem with professional crews who use controlled spray patterns, but it takes 30 seconds and provides real peace of mind.

Pre-Treat Problem Areas If Asked

Some pressure washing companies will ask you to pre-treat stubborn stains before their arrival — especially for deep motor oil stains on concrete. If your company provides pre-treatment instructions or sends a cleaning solution ahead of time, follow their directions carefully. Oil stains in particular respond better to cleaning solutions that have had time to dwell on the surface and break down the oil molecules before pressure is applied.

If you have a specific area of concern — a rust stain from a sprinkler head, a particularly dark tire mark, a section with heavy efflorescence — point it out when the crew arrives rather than assuming they'll see it. Flagging problem areas up front ensures the crew allocates appropriate time and uses the right technique or chemistry for that specific issue.

What You Don't Need to Do

Just as important as knowing what to prepare is knowing what not to waste time on. Some homeowners spend hours pre-cleaning surfaces before their appointment, which is genuinely unnecessary and sometimes counterproductive.

• Do NOT pre-wash or scrub the surface — let the professionals do the work their equipment is designed for
• Do NOT apply any cleaning products before the crew arrives unless specifically instructed to
• Do NOT run your irrigation system the morning of the appointment — wet grass near the work area creates mud that can splash onto freshly cleaned surfaces
• Do NOT sweep or blow debris off the driveway — the pressure wash will handle this; sweeping first is unnecessary
• Do NOT attempt to remove moss or algae yourself before the appointment — professional removal is more thorough and you risk spreading spores to clean areas

After the Job: What to Expect

Once the job is complete, surfaces will be wet and may remain slippery until fully dry — typically 24–48 hours in warm weather, up to 72 hours in cooler or overcast Oregon conditions. Keep foot traffic off freshly washed concrete during this drying period if possible, especially if young children or elderly family members might be walking on it.

If sealing was part of the service, the crew will advise you on the curing time before the surface should get wet again or have vehicles parked on it. Follow these instructions carefully — sealer that gets wet before it cures can cloud, streak, or delaminate, and re-application is an avoidable expense.

Rinse your plants and garden beds with plain water after the crew leaves, especially if soft washing was done anywhere near landscaping. This dilutes any residual cleaning chemistry and helps your plants recover quickly. Most professional-grade soft washing solutions are biodegradable and won't cause long-term harm to established plants when properly rinsed.