Concrete Patio Cleaning in Chicago, IL

A cleaner patio you’ll actually want to use.

Removing Grime, Algae, and Salt Residue from Chicago Concrete

Chicago patios take a beating from long winters, wet springs, and freeze-thaw cycles. Between algae in shady areas, grime buildup, and salt residue tracked in from snow season,
concrete can start looking dark, blotchy, or permanently stained. The right cleaning method restores the look and helps your patio stay safer underfoot.

Common Chicago patio problems

Green algae in shade and low spots
Black mildew speckling after wet seasons
White salt residue and chalky film
Rust stains from metal furniture and planters
Oil and grease stains near grills

What a proper clean solves

Removes organic growth and surface discoloration
Improves traction and reduces slick areas
Flushes grime and salt residue from pores
Helps slow down recurring staining

Why Concrete Patios Get Dirty Faster in Chicago

Concrete is porous, so it absorbs moisture and holds onto dirt. In Chicago, snowmelt, spring rain, and humid summer stretches keep patios damp longer than you’d expect.
Add de-icing salts, tracked-in grime, and freeze-thaw wear, and concrete can look stained even after a quick rinse.

Freeze-thaw cycles open pores and trap more grime
Snowmelt and spring rain keep patios wet for long periods
Salt residue leaves a white film and dull appearance
Shade and puddling encourage algae and mildew regrowth

Best Way to Clean a Concrete Patio in Chicago

In many Chicago yards, a rinse alone won’t remove algae, mildew, or salt residue because those issues bond to the surface and settle into the pores.
The most effective approach usually combines pre-treatment, proper dwell time, and a controlled rinse to avoid striping, etching, or aggravating existing cracks.

Pressure Washing

Great for heavy dirt and seasonal buildup
Works best with a cleaner pre-treatment
Too much pressure can worsen cracks or spalling

Soft Washing

Low pressure, cleaner-driven results
Often better for algae and mildew
Typically safer on aging or worn concrete

Many Chicago patios do best with a hybrid process: treat organic growth and salt residue first, then rinse thoroughly to lift embedded grime and reduce the slick film that returns after rain.

Concrete Patio Cleaning Cost in Chicago, IL

Pricing depends on patio size, stain severity, accessibility, and local rates. In Chicago, patios with algae, mildew, and salt residue often require stronger pre-treatment
and a more thorough rinse cycle, especially after winter.

Chicago Concrete Patio Cleaning FAQs

How often should I clean my concrete patio in Chicago?

Most homeowners do well with a deep clean once or twice per year, usually after winter and again in late summer. If your patio stays shaded, holds water, or develops slick algae after rain, you may need cleaning more often.

What causes the white chalky film on my concrete?

It’s often salt residue from de-icing products or tracked-in winter grime. Over time, that residue can dull the surface and make concrete look permanently dusty unless it’s properly flushed out with the right cleaner and rinse method.

Is pressure washing safe for Chicago patios?

Yes, when done correctly. The key is using the right tip, maintaining consistent distance, and avoiding excessive pressure on older concrete, cracks, or areas already showing wear. For organic staining, a cleaner-first approach (soft washing) is often safer and more effective.

Request a Free Quote

Share your zip code and what you need. We’ll route your request to a qualified concrete patio cleaning pro near you.