How to Prepare Your Home for a House Wash
Garner Pressure Washing • September 26, 2026 • 8 min read
Your house wash is booked for Thursday morning. Now what? If you are wondering how to prepare for pressure washing your home, the good news is that it takes about 20 minutes the evening before, and most of it is common sense you would not think of until the water is running: a cracked-open window, a car parked by the garage, a dog in the side yard.
The person washing the house handles the washing. Your job is to make sure nothing is in the way, nothing can get wet that should not, and the water is ready to go. In Garner that list has a few local extras. Many newer homes from Adams Point to South Creek have irrigation timers that fire at dawn, older lots near Lake Benson have big foundation plantings, and a lot of outdoor spigots get shut off for winter and forgotten.
This is the homeowner’s side of wash day: the checklist, whether you need to be home, what not to do beforehand, and what to check once the wash is done. What happens during the wash itself is described on the house washing service page.
What Should You Do the Day Before a House Wash?
Close and latch every window, move cars and outdoor items away from the walls, bring pets in, check the outdoor spigot, and switch off the sprinklers. Here is the full list, with the reason for each:
| Task | Why it matters | When |
|---|---|---|
| Close and latch every window, including basement and garage windows | Rinse water finds any gap, and older or loose sashes leak under a steady stream | Evening before |
| Move cars out of the driveway or well away from the house | Drift and rinse water land on whatever is parked beside the walls | Morning of |
| Move patio furniture, grills, planters, doormats and decorations off the walls | Clears the work area and keeps items out of the runoff | Evening before |
| Check the outdoor spigot turns on and runs | Most house washes use the home’s water; a winterized or broken spigot stops the job | Evening before |
| Turn off irrigation for the day | A timer that fires mid-wash wets surfaces and dilutes the solution | Evening before |
| Bring pets inside, plus their bowls and toys | Keeps them away from the solution and the equipment | Morning of |
| Unlock gates and note any side-yard access problems | Every wall has to be reached | Evening before |
| Point out loose siding, cracked trim, failing window seals or peeling paint | Known weak spots get extra care, and you get an honest record of them beforehand | When you book |
| Note outdoor outlets without covers, light fixtures with gaps, and cameras | These get covered or avoided | When you book |
Two items deserve a little more attention: plants and paint.
Plants. Soak foundation beds the evening before and tell the person washing which shrubs or garden boxes you care about most, and which downspouts empty into beds. Our guide to whether soft washing is safe for plants and pets covers why those details matter.
Peeling paint. If the house is older and the paint is flaking, say so when you book. Washing can knock loose paint off, and on a house built before 1978 that raises a lead-paint question worth settling first; our guide on pressure washing before painting explains the rule.
Pro tip: Take a quick lap of the house with your phone the evening before and photograph every wall. It takes five minutes, it lets you point to anything you are worried about, and if the wash is for an HOA notice, you already have your “before” photos.
Do You Need to Be Home During a House Wash?
No, you usually do not need to be home, as long as the washer can reach every wall, the water is on and pets are secured. Being reachable by phone is enough for most visits.
It helps to be home, or to have someone there, if:
- Access needs a key or code, such as a locked gate or a pool enclosure.
- The water comes from a well. Tell the washer when you book so the job can be paced to what the well delivers.
- You have questions about a specific stain. Rust, red clay or paint marks may need a different treatment from the general wash, and it is easier to point them out in person.
- You are closing out an HOA notice. You will want to see the result before sending photos to the management company. Our post on HOA letters about dirty siding covers the close-out step.
If you will be out, leave gates unlocked, pets inside, cars moved and the spigot on, and ask for a text when the job is done.
What Should You Not Do Before a House Wash?
Do not pre-clean the siding yourself, spray your own bleach mix, or wrap your shrubs in plastic hours ahead of time. Each one causes more trouble than it saves.
Pre-washing with a rented pressure washer. High pressure on vinyl or fiber cement is exactly what the wash is meant to avoid. James Hardie tells owners not to use a high-pressure power washer on its siding at all, and the full surface-by-surface picture is in our comparison of soft washing vs pressure washing.
Spraying your own cleaner. A homemade bleach mix on the siding the day before can streak, and mixing bleach with other cleaners is dangerous. Purdue Extension’s mildew guidance warns never to mix bleach with ammonia (Purdue Extension NCR-134).
Covering plants in plastic too early. Plastic sheeting left over shrubs on a sunny Garner morning traps heat. Covers, if used, go on just before the solution does and come off right after the rinse.
Touching up paint. Fresh paint and wash water do not mix. Save touch-ups until after the wash and after the surface has dried.
What Should You Check After the Wash?
Walk the house once it is finished and look at windows, plants, the yard and any spots you flagged. A short check the same day is worth more than a long one a week later.
- Look inside at window sills on the walls that were washed, especially older windows, for any sign of water.
- Hose the foundation beds again if the day is hot or the beds are packed with shrubs. Extra plain water never hurts.
- Walk the yard before letting pets out, and hose any puddles along the foundation into the lawn.
- Photograph the finished walls in good light, particularly if an HOA or a listing agent needs them.
- Leave the irrigation off until the next day so the rinse is not disturbed.
- Wait before painting or staining. Surfaces need time to dry, and the paint label sets the conditions.
If the driveway is next on the list, it is often done in the same visit; see driveway and concrete cleaning for what that involves.
Frequently Asked Questions
Should I close my windows before a house wash?
Yes, close and latch every one, including basement, garage and bathroom windows. Rinse water runs down the wall in a steady sheet and finds any gap. If a window does not latch fully or the seal is failing, mention it when you book so that wall can be rinsed with extra care.
Do I need to move my car before pressure washing?
Yes. Move cars out of the driveway, or at least well away from the house. Drift from the walls and rinse water from the roofline can land on anything parked alongside, and a clear driveway also leaves room to work and to clean the concrete if you have added driveway cleaning to the visit.
Should I water my plants before the wash?
Yes, a deep soak of the foundation beds the evening before helps, so the soil is already wet before any runoff reaches it. The beds should also be wetted again before the solution goes on and rinsed afterward, which is part of a proper soft wash.
What if it rains on the day of my house wash?
Light rain usually does not stop a house wash, since the siding gets soaked anyway. Heavy rain, lightning or high wind will, because the solution needs dwell time and drift must stay under control. If the forecast looks bad, expect a call to reschedule.
How do I prepare if my house is on well water?
Say so when you book. A house wash draws steady water for hours, and a well has its own flow limits, so the job may be paced differently. Make sure the outdoor spigot works and that the pressure tank and pump are in normal working order.
How long does a house wash take, and can I stay inside?
Most single-family homes take a few hours, depending on size and how heavy the growth is, and you can stay inside with the windows shut. If you want to talk through your house before booking, contact us with your address and a few photos.
Prepare Your Home for a House Wash in 20 Minutes
Knowing how to prepare for pressure washing your house comes down to a short list: windows shut, cars and furniture moved, pets in, plants soaked, sprinklers off, spigot working, gates open, and weak spots pointed out when you book. Do that the evening before and wash day takes care of itself.
We provide low-pressure house washing across Garner, Clayton, South Raleigh, Willow Spring and Fuquay-Varina, with free quotes and up-front pricing. See the Garner pressure washing cost guide for how pricing works, or request a free quote and get your wash on the calendar.
