6 Best Brick Cleaner of 2026: Formulas That Actually Remove Mold

The bleach-based concentrate makes short work of black mold and mildew on brick, concrete, and siding. Mix equal parts water in a pump sprayer, apply, and let it dwell for half a minute; a rinse alone lifts stains that usually demand intense brushing. The formula restores deeply stained patios and walkways to a noticeably brighter state, often making aged brick look freshly laid. It handles the most common outdoor discoloration across fences, canvas awnings, and even plastic furniture without separate steps or tools.

This is the right pick for homeowners tackling large outdoor areas marred by mold and algae, and who prioritize speed and cost over a bleach-free formula. The strong chlorine odor during application calls for open-air use, protective eyewear, and old clothing — splashes can lighten fabric permanently. Rinsing overspray from nearby plants promptly keeps landscaping safe, but the smell makes it less suited for enclosed patios or entryways. Those who prefer a gentle, scent-free wash will find peroxide-based concentrates a better match, though they typically require longer dwell times and clean black mold less decisively.

💡 💡 Tip: Wear old clothes and eye protection, and rinse any overspray from plants and soft surfaces within minutes to prevent bleaching.

Savogran TSP is a concentrated alkaline powder that cuts through soot, grease, and old chalked paint on brick without bleach fumes. DIY painters preparing brick walls or fireplaces for paint or stain get the deepest clean possible. The trade-off is mixing with water, wearing gloves, and thorough rinsing. The powder can also harden into a solid brick in humid storage, requiring chipping or hot water to dissolve. For exterior mold and mildew, the top pick's no-scrub bleach spray is faster, but for oil-based grime and pre-paint prep, TSP's alkaline attack is far more effective.

💡 💡 Tip: Store the powder in a sealed container to prevent moisture from hardening it into a brick; if it solidifies, smack it with a hammer and dissolve in hot water.

Unlike fast-acting bleach formulas, Simple Green Oxy Solve uses peroxide to clean dirt and light mildew from brick, wood, and concrete without harming surrounding plants or leaving harsh residues. The concentrate mixes easily for pressure washing or manual spray application and covers up to 6,400 sq ft per gallon — practical for maintaining brick patios and walkways.

Its limit becomes apparent on heavily embedded black mold or deeply stained brick. Peroxide can struggle, sometimes leaving behind a film or requiring extra dwell time and scrubbing. This makes it a better fit for routine maintenance rather than full restoration. Eco-conscious homeowners who prioritize pet safety and plant health over maximum stain-fighting aggressiveness will find it a solid, gentle cleaner.

💡 💡 Tip: Let the solution sit on brick for 10-15 minutes before rinsing to improve mildew removal.

This degreaser tackles oil spots and greasy residue that power washers miss. The spray-on formula breaks down petroleum-based grime, then wipes away without scrubbing—effective on brick driveways, garage floors, and outdoor kitchen tiles. Without harsh fumes, it's usable in enclosed garages where bleach smells would linger.

It's ideal for spot-cleaning oil drips, grill splatter, and greasy tools on brick. The ready-to-use bottle works for small stains, but the included sprayer may become unreliable; a heavy-duty replacement head makes the experience frustration-free. For mold, mildew, or large-area driveway coverage, the bleach-based top pick is the better tool.

💡 💡 Tip: Keep a heavy-duty spray head handy—the included one can sputter and die.

This pH-neutral no-rinse concentrate keeps interior brick and stone floors gleaming with a light lemon scent and won't dull delicate surfaces. But it's built exclusively for indoor maintenance — it lacks the mold-killing agents and heavy stain removal needed for exterior brick. For that, outdoor-specific cleaners cost less and do more.

Oxy Solve lifts light dirt and general grime from brick and siding while keeping nearby plants and waterways safe. When faced with stubborn mold or mildew, its cleaning power is noticeably weaker than bleach-based alternatives — results can be inconsistent. For homes near lakes or ponds where chemical runoff is restricted, it fills a narrow niche as a maintenance wash rather than a heavy-duty stain remover.