Find Houston-area pressure washing companies — and see which ones we've confirmed with the business.

Hiring a pressure washing company in Houston

There is no state licence for pressure washing in Texas, so the filters that matter are insurance and technique.

Ask for proof of general liability, sent by the insurer. Water at 3,000 psi driven under siding or into a window seal does expensive damage, and on a two-storey job someone is working off a ladder over your landscaping.

Soft wash versus pressure wash — this is the whole conversation

The most useful thing to know in this trade is that your house should almost never be cleaned with high pressure. Siding, painted surfaces, and especially roofs are cleaned with a low-pressure "soft wash" — a detergent that kills the growth, then a rinse. High pressure on a roof strips granules off the shingles and takes years off it. High pressure on siding drives water behind it.

High pressure belongs on flatwork: driveways, sidewalks, patios, concrete. A company that describes the difference without being asked is telling you they know the trade. Several of the Houston companies listed here lead with "low pressure, no damage" for exactly this reason.

What actually grows here

Houston humidity means the black streaking on your roof and the green film on your north-facing walls are biological, not dirt. That matters because rinsing alone does not fix it — without a detergent that kills the organism it grows back in weeks. If a quote is significantly cheaper than the others, ask what chemical is being used and what the expected time to regrowth is.

Practical questions

• Do you use my water, and is that reflected in the price?
• Is the driveway priced by the square foot or as a flat rate, and what counts as the driveway?
• Do you move and replace patio furniture, or is that on me?