exterior painting

Should I Pressure Wash My House In the Woodlands, Texas before Painting?

Sometimes when homeowners are in a hurry to have their home painted, they’re tempted to skip washing the exterior. Washing your exterior is really critical for an even and durable paint job. Without proper washing, your paint job may only last for a year or two before signs of paint deterioration start setting in.

House siding collects a fine film of dirt and chalk that naked eyes might not see. This comes from air born debris that gets carried around by the wind, and the breakdown of paint (chalking) that happens over time. All this needs to be removed, and the most effective way of doing this is by pressure washing.

Benefits of Pressure Washing Your Home

1. Cleans Mold and Mildew

Mildew and mold thrive in moist shady areas. This risk increases if you leave in damp and moist areas or your house has overflowing gutters. Mold and mildew not only make your house look unappealing but also has the potential of damaging your siding and leading to expensive repairs.

To prevent mold and mildew from growing on your siding, carry out regular inspection of your home’s exterior. Mildew and mold show up in white, black or grey spots. Calling a power washing expert to clean off the mold and mildew will reduce the prep work needed before the actual painting happens.

2. Removes Dirt and Debris

As already mentioned, your siding collects fine dirt and chalk over time. This can sometimes seem invisible unless you take a close look. Painting over dirt and chalked paint will lead to unprofessional and uneven looking paint finish. Pressure washing will dislodge the loose dirt, chalk, and flakes of old paint, leaving you with a smoother surface to work with. It’s this mixture of dirt, chalk, and moisture that creates a breeding ground for mildew and mold.

3. It Cleans Efficiently

No matter how aggressively you clean your siding using water and mop etc. you can’t achieve the same level of cleanliness as what pressure washing can offer. Pressure washing will dislodge all the dirt and grime in the cracks and areas that you can’t easily access using other methods. Your surface will look clean, shiny and well maintained.

4. Faster and Convenient

If you’re the DIY type, it’s probably going to take you a whole day to clean your entire siding using other methods, depending on the size of your house. A Pressure washer will help you clean your exterior faster and more conveniently, allowing you to clean areas that you would have otherwise not reached using a mop and bucket.

Overall, pressure-washing not only removes the grime and dirt that has collected on your siding, but it also blows off flaking and loose paint that you would otherwise have to scrape off. Most pressure washers have a low-pressure setting and detergent port that allow you to treat mildew and mold while washing to prevent them from growing again after painting. Your paint job will also last longer on your siding after pressure washing.

Other than for painting purposes, regular pressure washing prevents dirt, grime, and mildew from accumulating on your exterior and breaking down your siding. So you will worry less about having to replace chipped paint, rotted wood, and premature aging of your home.


If you’re pressure washing your siding prior to painting, keep in mind that it may take 1-3 days for your siding to dry depending on the material. Concrete, vinyl, and aluminum sidings generally dry faster than wood siding. So you should probably pressure wash 3-5 days in advance before the scheduled painting day. If you can’t paint soon enough after pressure washing, don’t wait for more than two weeks.

Bottom Line

Pressure washing is an extremely important preparation step before exterior painting your home in the Woodlands, Texas. While there’re other options such as using a garden hose or a mop and bucket, only pressure washing can dislodge deep-seated dirt and grim in siding cracks and inaccessible exterior areas.

Need help pressure washing and repainting your home’s exterior in the Woodlands, Texas? Our experienced and skilled crew of professional painters would love to help. Just book a free estimate below or contact us for more information.