Frequently Asked Questions
Real answers to the questions homeowners ask about exterior pressure washing, from how the work is done to how to schedule it and what to expect after. No price figures, no guarantees, no response-time promises, just straight trade guidance from the crew perspective.
The Work Itself
What is the difference between pressure washing and soft washing?
Pressure washing uses directed water at high pressure to lift grime from hard, porous surfaces like concrete, pavers and brick. Soft washing uses a lower-pressure rinse, often with a cleaning solution, on fragile surfaces like siding, screens and painted trim where a harder stream could cut the finish or force water behind walls. Most homes need both methods across different areas, and the walk-through before the job settles which goes where.
Can pressure washing damage siding or paint?
It can if the method is not matched to the surface. Siding, screens and painted trim are washed with a gentler rinse that lifts algae and grime without driving water behind walls or cutting the finish. Hard, directed washing is reserved for concrete and pavers where the surface can take it. The walk-through before the job is where the right method for each surface gets settled, so the wash clears the grime without marking the finish.
Which surfaces around a home can be safely washed?
Most exterior surfaces can be washed when the method is matched to the material. Vinyl, wood and painted siding take a gentle rinse. Brick and stucco take a low-pressure wash with care for the mortar and the soft finish. Concrete driveways, walks and pavers take directed pressure. Gutters, downspouts, fence lines, pool decks and patio screens all have their own approach. The walk-through settles the scope and the method for each surface before any water is turned on.
What does a typical exterior cleaning visit include?
A typical visit starts with a walk-through to read the surfaces and settle the scope. The crew preps the area, moves or covers items near the walls, and works through the surfaces in order. Siding is washed from the top down, flat surfaces in sections, and gutters are cleared by hand and flushed. A final rinse and a walk-through confirm every surface reads clean before the crew packs up.
How long does a standard washing job take?
A single-story home takes a few hours, and a two-story home takes most of a morning or afternoon. Driveways and walks add time, and heavy growth takes longer than light grime. Weather plays a part too: steady rain or high wind pushes the job to another day. The walk-through at the start gives a clear sense of the time before the crew begins, so the homeowner knows what to expect.
Scheduling and Access
Do I need to be home during the work?
You do not have to be home for the wash itself, as long as the crew can reach the surfaces and an outdoor water spigot. Many homeowners prefer to be there for the walk-through at the start and the review at the end, but it is not required. If you cannot be on site, the finished work can be reviewed by photo, and the scope is settled in advance so the crew knows what to do.
What time of year is best for exterior cleaning in this climate?
Exterior cleaning works in any season in this climate, but the timing that makes the most sense depends on the growth. A wash in the spring clears pollen and algae before the humid summer sets in. A wash in the fall clears the growth that built up over the summer before it sits through the damp winter. There is no wrong season, only the question of whether the growth is ready to be cleared.
What does the crew need access to on the property?
The crew needs access to the surfaces being washed and an outdoor water spigot. Items that can be moved away from the walls, like patio furniture and potted plants, should be moved before the crew arrives. Windows and doors should be closed during the wash. If a rain barrel collects from the downspouts, it should be diverted before the wash so rinse water does not enter it.
Can exterior washing be scheduled around business hours?
Yes. For commercial properties, the crew works around the business hours, often before opening or after close, so customers are not walking through the wash. The schedule is set during the walk-through so the doors stay open and the walk stays safe for foot traffic. The timing depends on the type of business and the hours that keep the disruption lowest for the tenants and the customers.
What happens if it rains on the scheduled day?
Steady rain or high wind pushes the job to another day, because the wash needs dry conditions to work and to let the surfaces dry evenly. Light rain during a wash is not always a stopper, but the crew reads the weather and the surface and makes the call. If the job is rescheduled, the crew coordinates the next available day so the work stays on track.
Aftercare and Results
How long do the results of a wash typically last?
The results last as long as the conditions that caused the growth stay the same. A sun-facing wall can hold clean for a year or more, while a shaded wall or a surface under tree cover may show growth sooner because the moisture is still there. The wash kills and clears the growth, but it does not change the shade, the grade or the humidity, so the siding shows when the next wash is due.
What should a homeowner do after the crew leaves?
Give the siding time to dry before putting anything back against it, because damp siding holds whatever rests on it. Check the gutters and downspouts during the next rain, because a wash clears the exterior faces but not the interior, and a clogged downspout will send overflow back down the same path. If a rain barrel was diverted, reconnect it after the wash. These steps keep the wash from being undone by something avoidable.
How often should a home be washed in this climate?
Most homes do well with a wash once the green film and streaks become visible, which tends to happen over the warmer, more humid months. Shaded properties under heavy tree cover collect algae faster and need it sooner. Open, sunlit homes hold longer. There is no fixed schedule, and a straight answer about what can wait is part of the walk-through. The siding shows when the growth is ready to be cleared.
Is the washing safe for plants, pets and pools?
The crew works around planting carefully, rinsing beds before and after and routing runoff away from delicate growth. For pools, the runoff is kept out of the water. Pets and people should stay inside during the wash for safety. If there is a treasured plant or a pool concern, point it out during the walk-through so it gets extra attention.
Ready to schedule
If a question here matches the work a property needs, the next step is a walk-through and a straightforward price. There is no obligation in the quote, and the scope stays honest about what the property needs and what it does not. Call (504) 414-4449 or send your details through the form and Cooper will get back to you about the job and the schedule.