Frequently asked questions

The Soddy-Daisy area and nearby towns. We are based in Graysville and also work in Chattanooga, East Ridge, Signal Mountain, Dayton, Dunlap, McMinnville and Crossville.

Call or email. Reach us at (423) 387-0784 or h.murphypowerwash@gmail.com, Monday through Sunday, 6:00 AM to 8:00 PM. Tell us your address and which surfaces you want cleaned.

Yes. We wet your plants and grass before we start, protect them while we work, and rinse them again when we finish.

No, in most cases. If we can use an outdoor water spigot, we can do the work while you are out.

No. We need an outdoor water spigot and the cars moved off the concrete. We can share what we found by phone or text after the job.

Not always. Fresh drips usually lift well after pre-treatment. Oil that has soaked in for years often lightens a lot but can leave a shadow in the concrete.

Right after we finish for walking. For driving, wait until the surface looks dry, which is usually a few hours depending on sun and shade.

It can if the pressure is too close or too high. We use a surface cleaner held at a set distance and adjust for older or worn concrete to avoid etching.

Yes, if you want it to stay clean longer. Sealing helps keep out water, oil and stains. The concrete has to be fully dry first, so sealing is often a separate visit.

No. Siding is soft washed. We use low pressure and a cleaning solution to kill the growth, then rinse. High pressure can force water behind siding and strip paint, so we avoid it on walls.

No. If we can reach an outdoor water spigot, you can be at work or away. Just keep windows and doors shut and let us know about pets in the yard.

No, not when it is handled right. We soak your plants with water before we start, cover delicate ones, and rinse them well after. That keeps the solution from sitting on leaves or soil.

Once a year works for most homes. Shaded walls, or a house close to trees, may grow algae faster and need it sooner. If you see green or black film coming back, it is time.

Yes. We also offer roof cleaning, driveway and concrete cleaning, and deck and patio cleaning. Ask about adding them when you call, and we can plan one visit.

Yes, high pressure can strip granules and loosen shingles. That is why we never use it on roofs. We soft wash at low pressure and let the solution do the cleaning.

No. As long as we can use an outdoor water spigot, we can do the work while you are out. We will let you know when it is done.

No, not when it is handled right. We soak your plants with water first, protect them during the job and rinse them well afterward.

Yes, in time. Algae spores travel in the air and settle on roofs again. Killing the growth at the root means it takes much longer to return than if it were just rinsed off.

Yes. We also offer house washing, driveway and concrete cleaning, deck and patio cleaning, fence cleaning, and paver and concrete sealing. We can quote them together with your roof.

No. As long as we can reach an outdoor water spigot, we can do the work while you are out. Moving lighter furniture and grills off the deck ahead of time helps us clean every board.

No, not with the method we use. High pressure can splinter soft wood and scar composite, so we use low pressure and a cleaning solution that does most of the work.

Before you start using it for the season, and any time you see green film or black spots. Decks and porches in shade stay damp longer and usually need cleaning about once a year.

Yes, for concrete and paver patios. Paver and concrete sealing is a separate service we offer. Sealing helps protect the surface from water and stains, and it goes on after the patio is clean and dry.

As soon as it dries. You can walk on it after the final rinse, but let wood dry fully before you put rugs and furniture back or apply any stain.

No, not the way we do it. High pressure can splinter soft wood and leave it fuzzy. We soft wash wood fences with low pressure and a cleaning solution, so the solution does the work instead of force.

No. As long as we have access to an outdoor water spigot and the gates are unlocked, you do not need to be there. Please keep pets inside while we work.

Yes, if we can reach the other side. If the back faces a neighbor's yard, it helps to let them know ahead of time so we can get access.

Yes. Vinyl fences pick up green algae and dirt, especially in shade. We soft wash them at low pressure, the same way we clean vinyl siding.

Yes. We also offer deck and patio cleaning and house washing. Ask for them when you call, and we can quote the work together.

Both. We seal brick paver patios and walkways, and we seal concrete driveways, sidewalks and patios.

Yes. Every sealing job starts with a full cleaning. Sealing over dirt or mildew traps it under the sealer, so we wash and pre-treat stains first.

Often, yes. We pre-treat oil and rust before washing, and many stains lift. Some older stains that have soaked deep may fade but not fully disappear. We will tell you what to expect when we look at the surface.

No. As long as we can use an outdoor water faucet and reach the area, you do not need to be there. Please move cars, furniture and planters off the surface beforehand.

Yes. Murphy Power Washing is licensed and insured, and the business is veteran-owned.

Yes. We schedule from 6:00 AM to 8:00 PM, Monday through Sunday, so many jobs can start before customers arrive or after you close.

No. Siding, stucco, stone veneer and painted surfaces are soft washed at low pressure with a cleaning solution that kills algae and mildew. High pressure is only used on concrete.

No. We need access to an outdoor water spigot and the areas cleared of cars or furniture. We will check in with you before we start and when we finish.

Yes. Murphy Power Washing is licensed and insured. The company is veteran-owned and was established in 2023.

Yes. We clean parking lots, parking garages, dumpster pads, sidewalks and HOA common areas, along with building walls, storefronts and commercial windows.