Pressure washing blasts high-pressure water at hard surfaces like concrete, pavers, brick and stone. Rob is a family man from Woodstock who works alone, with no subcontractors, and he cleans walks, patios, steps and retaining walls in Johnsburg, IL, where algae, salt and lake-area grime build up. Pressure washing starts from $75. Send a picture of the area to (815) 451-0106 and the estimate is free.
There is a reason a patio near water turns slick and green in July. Shade, dew, lake humidity and a thin layer of dirt give algae everything it needs, and a wet algae film on concrete is a genuine slipping hazard on steps and walkways. The slab itself is fine. The film on top is the problem.
Blasting with water is the right tool for that film, but only on the right surfaces. Applied to a deck, a window or soft siding, the same force becomes damage. This page focuses on the hard surfaces around Johnsburg homes: what Rob cleans with pressure, what he keeps it away from and how to decide whether a job is worth doing.
The hard surfaces on a lake-country lot
A typical Johnsburg property has more hard surface than the house suggests. There is the front walk and porch steps, a driveway and garage apron, a patio behind the house, maybe a seawall cap, a retaining wall holding up a slope toward the water, a boat-trailer pad or a fire pit area with pavers. Each collects different dirt.
Front steps get tracked-in grit and salt. Patios under trees collect leaf tannins and pollen. Lakeside slabs pick up algae, bird droppings and the gray film of airborne dust. Pavers near the water develop moss in the joints. Rob sizes the job to the surface, choosing a method that cleans without gouging the face of the concrete or blasting out the sand between pavers.
- Front walks, porch steps and landings
- Garage aprons and short driveways
- Back patios and fire pit areas
- Retaining walls and seawall caps
- Boat-trailer pads and parking spots
Slick steps and a safety argument for cleaning
Cleaning is partly cosmetic and partly practical. Algae on a wet step is the sort of film that sends people sliding, and in northern Illinois the worry returns in winter when the same damp surface freezes. A cleaned step gives better grip, and a cleaner surface also lets you see cracks and spalling before they spread.
That said, Rob will not tell you pressure washing makes concrete safe from ice. It does not. For winter safety you still need to manage ice and use salt or sand sensibly. What cleaning can do is remove the algae base that makes a step treacherous in the first place.
What high pressure damages, and where Rob dials it back
High-pressure water can etch soft wood, strip paint, lift old mortar, tear window screens, loosen caulk and push water behind siding. Brick joints, old stucco-like coatings, composite decking and painted trim are all sensitive. Even concrete can be scarred if the nozzle sits too close, leaving stripe marks that look worse than the dirt did.
For those materials Rob uses a gentler approach, often a low-pressure wash with solution. If you are choosing between methods, the soft wash versus pressure wash guide compares them. Siding and trim belong on the soft washing side, while flat concrete is the natural home of pressure washing.
Rust, salt stains and other marks that need a different plan
Not every stain is dirt. White haze on concrete can be efflorescence or salt residue, and orange spots may come from rusting metal furniture, fertilizer or iron in well water. Oil from a parked car leaves dark patches that water alone barely moves. Each one needs a different treatment, and pressure alone sometimes spreads the mark.
The guide to concrete cleaning, salt, rust and efflorescence covers the chemistry. Rob will look at the stain in your photo and say whether it should lift, lighten or remain. Old stains that have soaked into porous concrete sometimes stay faintly visible, and he is upfront about that before work begins.
Runoff, drains and keeping the rinse out of the lake
Rinsing a patio near water carries dirt, algae and cleaning residue downhill. On a lakefront or creekside lot, Rob works from the highest point down, keeps solution in controlled areas and avoids sending a flood straight toward the shoreline. He watches where water flows before he starts.
Tell him if you have a rain garden, a planted slope or a spot where runoff tends to pool. Those details change how he sequences the work. If a surface drains directly into the lake with no buffer, he may suggest a gentler method or a different order of work to limit what leaves the property.
Bundling hard-surface jobs
Most people who call about a patio also have a driveway that needs attention. Larger concrete jobs are covered on the driveway and patio cleaning page, and Rob can combine them with other work. A single trip to the property is less disruptive than several visits.
If you are preparing to host guests, sell the house or open a seasonal home, ask about adding a deck wash or yard tidy during the same visit. Photos of each area help him quote the whole thing at once.
Pressure Washing through the year in Johnsburg
Early spring
Salt residue and winter grit are at their worst. Wait until temperatures stay above freezing, then clean walks and aprons before the lake season begins.
Late spring
Pollen, cottonwood fluff and fresh algae show up on shaded patios. This is a good time for patio and retaining wall cleaning ahead of summer gatherings.
Midsummer
Humidity pushes green growth on lakeside slabs. A mid-season touch-up helps on steps and walkways that see wet feet from the water.
Fall
Get it done ahead of leaf stains and the first salt of the season. Dry weeks in October give the surface time to dry fully.
Getting a quote
If a slab, step or wall around your house has gone slick, gray or green, snap a picture and send it to Rob at (815) 451-0106. Say whether it is by the water, under trees or in full sun, and mention any stains you already know about. You get a free quote, a straight read on what will improve and a plan that keeps the harsh water where it belongs.

