How to Soft Wash a House the Right Way in Central Florida

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Most houses in Central Florida do not get dirty so much as they get green. Walk around almost any stucco home in Winter Garden or Clermont and you will find it: a gray film on the north wall, black streaks under the eaves, green creeping up from the sprinkler line.

That is not dirt. It is mildew and algae, and it is living on your walls. Blasting it with a pressure washer removes the top layer and leaves the roots, which is why it comes back in a couple of months. Soft washing kills it instead.

This guide covers how to soft wash a house step by step: the gear, the mix, the order of operations, and the mistakes that cost homeowners their plants and their paint. If you would rather hand it off, that is what our soft washing service is for. Either way, you should know what good work looks like.

What Soft Washing Actually Is

Soft washing is cleaning with chemistry instead of force. You apply a diluted cleaning solution at low pressure, give it a few minutes to kill the growth, and then rinse it away with about the same pressure as a garden hose.

The active ingredient is almost always sodium hypochlorite, the same chlorine sold as liquid pool shock. Mixed with water and a surfactant, it breaks down mildew, algae, and the organic staining they leave behind. The surfactant helps the mix cling to vertical walls instead of running straight to the ground.

If you are wondering how to soft wash a house without damaging it, start here: it is the right method for stucco, painted surfaces, pool screens, and roofs.

It is the wrong method for bare concrete, where real pressure is what lifts ground in dirt. That is a job for pressure washing, and most homes need a bit of both.

Gear You Need to Soft Wash a House

You do not need a truck mounted rig to wash one house, but you do need the right pieces. Here is the short list:

• A way to apply the mix at low pressure. A good pump sprayer works for small areas. For a whole house, a pressure washer with a downstream injector and a wide soap tip, or a 12 volt soft wash pump, makes it realistic.
• Fresh liquid chlorine. Pool shock around 10 to 12.5 percent. It loses strength as it sits in the heat, so buy it close to the day you use it.
• A surfactant. A soft wash specific surfactant is best. It keeps the solution on the wall long enough to work and helps cover the chlorine smell.
• A garden hose with a spray nozzle. This is for keeping plants wet and for the final rinse on delicate areas.
• Safety gear. Chemical resistant gloves, eye protection, and clothes you do not mind bleaching. Chlorine in the eyes is an emergency, not an inconvenience.

How to Soft Wash a House, Step by Step

Here is the order of operations we recommend for anyone learning how to soft wash a house. Pick a calm, overcast morning if you can. Wind carries the mix where you do not want it, and direct Florida sun dries the solution before it finishes working.

1. Walk the house first. Close every window and door. Cover exterior outlets, light fixtures, and anything electrical with plastic and tape. Move cars, bikes, cushions, and pet bowls well away from the walls.
2. Soak the landscaping. Hose down every plant, bed, and patch of grass along the walls you are washing. Wet leaves absorb far less solution than dry ones.
3. Test a small spot. Pick a hidden area and apply the mix. Watch it for a few minutes and rinse. You are checking that the paint does not change color and the stain actually lifts.
4. Apply from the bottom up. Work one wall at a time and spray from the ground toward the eaves. Starting at the bottom prevents clean streaks from forming where solution runs down over a dry, dirty wall.
5. Let it dwell, but never let it dry. Five to ten minutes is typical. You will see the green and gray fade as it works. If a section starts to dry, mist it again.
6. Rinse from the top down. Use low pressure and plenty of water. Rinse every window and fixture on that wall, then rinse the plants again before moving on.
7. Finish with one more plant rinse. When the last wall is done, give every bed around the house a long final soak.

Mixing the Solution

For painted stucco walls, most pros aim for a solution that lands at roughly 1 percent chlorine on the wall. With 12.5 percent pool chlorine in a pump sprayer, that is close to one part chlorine to eleven parts water, plus surfactant per its label.

If you are using a downstream injector, the machine dilutes the mix again on the way out, so the bucket has to be much stronger to reach the same number at the wall. Check your injector’s draw ratio before you mix.

Getting the mix right is most of how to soft wash a house well. Two hard rules. Never mix chlorine with ammonia or with acid based cleaners, because the fumes are dangerous. And stronger is not better on a wall. Extra chlorine does not clean faster, it just raises the odds of damaging paint and plants.

Mistakes to Avoid When Learning How to Soft Wash a House

The same few problems show up after most do it yourself washes. Every one of them is avoidable.

• Using high pressure on stucco. A narrow tip up close etches the finish, knocks out patches, and pushes water behind the surface. Once the wand is doing the cleaning, you are no longer soft washing.
• Working in full sun. Solution that dries on the wall leaves spotty, blotchy results and can mark windows. Shade and cooler hours make a big difference.
• Skipping the plant soak. This is where most brown shrubs come from. It takes ten minutes and saves hundreds in landscaping.
• Forgetting the glass. Chlorine overspray that dries on windows leaves a haze. Rinse the glass on every wall as you go. If they still look rough afterward, our exterior window cleaning starts from $10 a window.
• Expecting it to fix rust. Orange stains from irrigation well water are iron, not mildew. Chlorine does nothing to them, and they need a different cleaner entirely.

What About the Roof?

Roofs get the same black streaks, and soft washing is the right method there too. The difference is that a roof needs a stronger mix, the runoff hits every plant around the house at once, and the work happens on a steep, wet, slippery surface.

Please do not walk a wet roof. Every year people get hurt learning how to soft wash a house and deciding to do the roof while the ladder is already out. Treat the roof as a separate job, and if it is more than a single story, hand it to our roof cleaning crew.

When to Call a Pro Instead

Knowing how to soft wash a house is useful even if you never do it yourself, because it tells you what to look for in whoever you hire. A few situations where calling someone makes more sense:

• A two story home where the upper walls need a ladder to reach.
• Heavy growth that has been building for years.
• Landscaping you are not willing to risk.
• A roof, a pool screen enclosure, and walls that all need doing at once.
• No calm, cloudy morning free for the next few weekends.

We are family owned, Fully Insured, and based in the Winter Garden area, so homes around Winter Garden, Windermere, Ocoee, and Clermont are right in our backyard. A house soft wash is priced by home size, and our online estimator gives you a number in about a minute. Every visit has a $200 minimum.

Frequently Asked Questions

Is soft washing better than pressure washing for a house?

For stucco walls, screens, and roofs, yes. Those surfaces are where mildew and algae live, and high pressure can chip paint, etch stucco, and tear screen. Soft washing kills the growth with a cleaning solution and rinses it off gently. Concrete driveways and walkways are the opposite case and do better with real pressure.

How long does a soft wash last in Florida?

Because the solution kills the growth down to the root instead of just blasting the surface, a properly done soft wash usually keeps a Central Florida house clean for a year or more. North and shaded walls, and walls near sprinklers, tend to come back first.

Will soft washing kill my plants?

It can if you skip the prep. Wet every plant bed before you spray, keep them wet while you work, and rinse them heavily when you finish. The chlorine in the mix is diluted, and plants that stay soaked with plain water rarely show any damage.

Can I soft wash my house with a regular pressure washer?

You can with a downstream injector and a wide, low pressure soap tip. The injector pulls solution in and dilutes it heavily, so you start with a stronger mix in the bucket. Keep the wand far enough back that the stream never digs into paint or stucco.

Get a Price in About a Minute

If you want to tackle it yourself, follow the steps above, go slow on the first wall, and keep those plants wet. If you would rather it be done right the first time, use the instant estimator on our soft washing page to price your house, or call or text (407) 926-0028.

Booking is online through Square, and we will take care of the walls, the screens, and the roof in a single visit.