Why Should I Hire a Professional Instead of Renting a Pressure Washer?

For a concrete patio or a set of trash cans, renting is fine. For your siding, your roof, or anything painted, hire it out. The rental is the cheap part. The mistakes are what cost you.

I'm not going to pretend nobody can run a pressure washer. Plenty of people do it every spring and nothing bad happens. But most of the damage I get called to look at started with a rental, and almost all of it was on a surface that never should have seen that much pressure in the first place.

What renting actually costs

The sticker on the rental counter isn't the real number. Here's what usually goes into a do-it-yourself house wash:

• The machine for the day, plus gas
• A surface cleaner attachment if you want the driveway to come out without stripes
• Cleaning chemicals, because water alone won't kill algae
• A truck or trailer to haul it, since most of them don't fit in a sedan
• Your whole Saturday, and usually part of Sunday

Add that up and you're often within shouting distance of what it costs to have the house done, and you still haven't touched the roof. If you want a ballpark on the pro side, here's what a house wash usually runs around Marietta.

A rental is the wrong tool for most of a house

The machines you rent are built to do one thing: put out a lot of pressure. That's great for concrete. It's the wrong approach for nearly everything else on your house.

Siding, roofs, soffits, and painted trim get cleaned with a soft wash. That means low pressure, about garden-hose strength, with a cleaning solution that kills algae and mildew at the root. The solution does the work and the water just rinses it off.

A rental doesn't come set up for that. The little soap injector on most consumer units waters the mix down so much it barely does anything, so people make up for it the only way the machine allows: more pressure, closer to the wall. That's where things go wrong.

Where DIY jobs go wrong

Here's what I see most often after a rental weekend:

• Siding. Cracked vinyl, fuzzed-up wood, paint stripped off in stripes, and water forced up behind the panels into the wall. I wrote a whole post on how pressure washing damages siding because it's that common.
• Roofs. Pressure on asphalt shingles knocks off the granules that protect them. It looks clean for a few months, and then the roof starts wearing out years early.
• Windows and fixtures. Blown window seals that fog up between the panes, water in outdoor outlets and light fixtures.
• Plants. Strong chemicals sprayed without wetting the beds first, and two weeks later the azaleas along the foundation are brown.
• You. A ladder and a wand that kicks back is a bad combination. And a narrow tip at full pressure can cut skin, which is not an injury you want to explain at the urgent care.

None of this means the person was careless. They used the tool the way it was built to be used. It just wasn't built for a house.

When renting makes sense

I'll be straight with you. If all you want is a small concrete patio cleaned, a few trash cans, or some plastic lawn furniture, rent the machine. Use a wide tip, keep it moving, and keep it off anything painted or anything with a seam in it.

Where I'd stop and hire it out:

• Any siding, especially vinyl or painted wood
• The roof, every time
• Anything two stories up, if it would put you on a ladder
• Heavy green growth that's been building for years
• A deck or fence you'd have to refinish if the grain gets torn up

What you get when you hire me

You get the right method on every surface. I soft wash siding and roofs and pressure wash the hard surfaces that can actually take it, like driveways and sidewalks. I set the mix for what your house is made of, wet down your plants before and after, and do the whole wash from the ground. No ladders against your gutters.

It also lasts longer. Killing the growth instead of blasting it loose means you're looking at a year or two before it comes back, not one season.

And you're dealing with me. I'm licensed and insured, I handle every job personally, and if something on your house isn't right, you've got my number, not a 1-800 line.

Skip the rental counter

You don't have to schedule a visit or be home for a quote. I quote off Google Earth. I pull up your address, measure the house from the satellite imagery, and send you a real number the same day. If there's a stained spot the satellite can't see, text me a photo and I'll work it in.

Call or text me at 678-984-9542, or send me the details here. You'll get me, not a call center.

Serving Marietta, Kennesaw, Acworth, Woodstock, Powder Springs, Smyrna, and the rest of Cobb, Cherokee, Paulding, Fulton, and Bartow counties. See residential services for everything I clean, or the service areas page for the full map.

Common questions

Is it cheaper to rent a pressure washer than to hire someone? For a small patio, yes. For a whole house, once you add the machine, gas, chemicals, attachments, and a full weekend, the gap gets small. One repair to a cracked panel or a damaged roof wipes it out completely.

Can I soft wash my house with a rental pressure washer? Not really. Rental units are built for high pressure, and their soap injectors dilute the cleaning mix too much to kill algae. Soft washing takes different equipment and the right mix for the surface.

What PSI is safe for siding? Much lower than a rental puts out by default. That's why I soft wash siding instead of pressure washing it. The cleaning solution does the work, so the water only has to rinse.

Should I pressure wash my own roof? No. Pressure strips the granules off asphalt shingles and shortens the life of the roof. Roofs should only ever be soft washed.

How often should I have my house washed? Every one to two years in this climate. Heavy tree cover pushes you toward once a year, and roofs run on a longer cycle of three to five years for most houses.