Pressure washing in Houston is mostly a fight against humidity. Concrete that sits in shade, next to a lawn sprinkler or under a live oak turns gray, then green, then black. A good pressure washing company can lift that growth out of the surface in an afternoon without carving lines into the concrete.
Worth knowing up front: Houston Power Washing Pro has no trucks, no wands and no crew. It is a free phone line. Ring it, mention the surfaces and a rough size, and the automated system hands your call to an independent, owner-run pressure washing business nearby, briefing it first so you skip the repeat. From there the price, the visit and the payment are between you and that business.
This page explains what residential pressure washing covers, how a careful company handles each surface, and what to ask before you hire anyone.
What residential pressure washing covers
"Pressure washing" means cleaning with water at much higher pressure than a garden hose. It is the right tool for hard, durable surfaces. Softer materials like siding, shingles and painted wood need a gentler method called soft washing, which uses low pressure and a cleaning solution instead of force. A good company switches between the two on the same property.
| Surface | Usual method | What to watch for |
|---|---|---|
| Concrete driveway and walks | Pressure washing with a rotary surface cleaner, then a wand along edges | Wand marks or "zebra stripes" from holding a narrow spray too close |
| Patio and pool deck | Pressure washing, with lower pressure on coated or stamped finishes | Coatings and sealers can lift if hit too hard; runoff near the pool |
| Pavers | Moderate pressure plus a surface cleaner | Joint sand blown out; may need re-sanding afterward |
| Brick and stone walls | Soft washing or low pressure | Old mortar can erode under high pressure |
| Siding and stucco | Soft washing (see house washing) | Water forced behind panels or into stucco cracks |
| Wood fences and decks | Low pressure or soft washing (see fence cleaning) | Fuzzy, raised grain ("furring") from too much pressure |
Why Houston concrete gets dirty so fast
Bush Intercontinental averages roughly 52 inches of rain in a year, according to National Weather Service climate normals, and morning humidity in Houston regularly sits around 90 percent. Mildew and algae thrive in exactly that kind of air, especially on surfaces that stay damp: the north side of the house, the strip of walk beside the flower bed, the driveway under a tree.
Spring adds a layer of yellow oak pollen, usually peaking in March. Summer storms splash soil onto slabs. Sprinklers fed by water with iron in it leave orange rings. By the time a driveway looks dark, it is usually a mix of all of these.
Who calls about pressure washing
- Homeowners who got an HOA letter. Many Houston-area associations write up dark driveways and green walks. A clean surface and a dated receipt usually close the matter.
- People getting ready to sell or rent. Clean concrete makes listing photos look better.
- Hosts before a big weekend. Patios and pool decks get slippery when algae builds up in shade.
- Anyone planning to seal or stain. Sealer and stain need clean, fully dry surfaces to bond.
- Homeowners after storm season. Hurricane season runs June 1 to November 30, and storms leave silt, leaf stains and debris behind.
What a careful pressure washing company does
You do not need to know how the machines work. You only need to know what good work looks like, so you can tell whether the company you hire is doing it.
Signs of a careful company
- Uses a rotary surface cleaner on flat concrete so the pressure is even and there are no stripes.
- Pre-treats mildew, oil and rust instead of trying to blast them out with pressure alone.
- Soaks plants and grass before and after any cleaning solution goes on.
- Keeps wash water out of storm drains. City of Houston code treats anything other than storm water going into the storm sewer as an offense, with few exceptions.
- Switches to soft washing for siding, shingles, wood and painted surfaces.
- Walks the job with you at the end.
Warning signs
- Plans to use the same high pressure on everything, including siding and the roof.
- Holds a narrow spray close to concrete, leaving light and dark lines.
- Will not put the price per surface in writing.
- Cannot show proof of liability insurance when asked.
- Lets cleaning solution and grime run straight into the street drain.
What happens when you call
- An automated assistant answers, any hour. The line also handles roofing and air conditioning calls, so it first asks which one you need.
- You describe the job. For example: "Two-car driveway, front walk and back patio, lots of black mildew in the shade."
- You are transferred to a local company. It hears a short summary first, so you do not have to repeat yourself. If it is out on a job, your name, number and request are passed along for a call back.
- The company quotes and schedules with you. It may ask for photos or come out to look. The price, the date and the work are between you and that company.
How this line works: Houston Power Washing Pro is a free phone line, not a pressure washing company. It connects you with an independent local pressure washing company, which inspects, quotes, does the work and is paid by you directly. Houston Power Washing Pro never charges callers. It may be paid a referral fee by the companies it connects callers with. How it works.
Three questions to ask any pressure washing company
Pressure washing is not one of the trades licensed by the Texas Department of Licensing and Regulation, so there is no state license number to look up. These questions do that job instead.
- Can you show me proof of liability insurance? A pressure washer can crack a window or strip paint. You want to know the company can pay for a mistake.
- Can you write down the price for each surface? Driveway, walk, patio and house listed separately makes quotes easy to compare.
- Will the siding, roof and any wood be soft washed rather than blasted? If the answer is no, keep looking.
Our guide to getting a pressure washing quote covers what a written quote should include, and how much pressure washing costs explains what moves the price.
Pressure washing for the rest of the property
Most calls are not for just one surface. If the driveway is dark, the siding on the north wall is often green too, and the gutters have black streaks. The company you are connected with can usually handle several surfaces in one visit, using the right method for each.
Related services
House Washing and Soft Washing
Low-pressure soft washing for brick, fiber cement, vinyl and stucco, so green mildew and black streaks come off without forcing water behind the siding.
Driveway and Sidewalk Cleaning
Concrete driveways, front walks and curb strips cleaned with surface cleaners, plus treatment for tire marks, mildew and the dark band along the lawn edge.
Deck and Patio Cleaning
Wood and composite decks, pavers and stamped concrete patios cleaned for the surface they are, with time to dry before any stain.
Oil and Rust Stain Removal
Oil drips, fertilizer rust and orange irrigation stains on concrete, treated with the right product before any rinse.
Pressure washing across the Houston area
The line takes calls from all over greater Houston, including Katy, The Woodlands, Sugar Land and Cypress. Each area page covers local issues like HOA rules, tree cover and drainage.
- Houston and all areas
- The Woodlands
- Katy
- Sugar Land
- Cypress
- Pearland
- Spring
- Conroe
- Tomball
- Kingwood
- League City
- Friendswood
- Missouri City
