20 Best Deck Cleaner For Mold And Mildew (Jan 2023 Update)
Are you looking for the Best Deck Cleaner For Mold And Mildew? If so, you’ve come to the right place.
Choosing the Best Deck Cleaner For Mold And Mildew can be difficult as there are so many considerations, such as 303, Dettol, Jelmar, Klean-Strip, Krud Kutter, Miracle Brands, Scotts, Simple Green. We have done a lot of research to find the Top 20 Best Deck Cleaner For Mold And Mildew available.
The average cost is $26.39. Sold comparable range in price from a low of $3.98 to a high of $99.99.
Based on the research we did, we think Star Brite Mildew Stain Remover – 32 oz. is the best overall. Read on for the rest of the great options and our buying guide, where you can find all the information you need to know before making an informed purchase.
20 Best Deck Cleaner For Mold And Mildew (20 Sellers)
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- Removes mildew stains on contact without heavy scrubbing
- Simple to use; spray on, scrub lightly and rinse off stains
- Safe for use on fiberglass, painted surfaces, rubber, plastic and vinyl headliners, bolsters and upholstery
- Non-caustic, non-acidic, contains no bleach
- Safe on any outdoor surface
- One step process. for concrete, brick, stucco, aluminum, painted surfaces, siding, decking, roofs and more
- Fast-foaming action that starts working on contact.
- Lifts dirt and wipes out stains from moss, mold, mildew and algae and more.
- Safe to use around lawns and plants.
- Lifts dirt
- Wipes out stains from mold, mildew and algae
- Works great on cement, stone, wood, wood composite, vinyl, brick, patio furniture and many more outdoor surfaces
- Safe to use, oxygen bleach-based formula
- Restores uv-grayed, dirty, mildew-stained wood surface to a bright, like-new appearance
- Fast-acting foaming action works in 10 minutes
- Epa registered formula crushes mold spores as it dries and leaves an invisible, barrier
- Odorless solution cleans between 80110 sq. ft. per 32 oz. bottle
- Simply spray onto effected area and allow to dryno scrubbing or rising required
- Pressure washer concentrate formula.
- Biodegradable, non-toxic bleach-free.
- Cleans wood, brick and more.
- Use to clean stains caused by moss or algae, or other organic debris from your composite decking.
- As you spray the spray n clean on your deck you will see instantly that the stains are disappearing.
- Spray and clean composite deck cleaner is safe, effective and couldn't be easier to use.
- Almost twice as strong as the leading brand.
- Removing stubborn mold and mildew stains has never been faster or easier.
- Powerful bleach-based formula.
- Spray & leave formula
- Concentrate makes 4.5 gallons
- No scrubbing, no rinsing and no power washing
- For use on acrylic fiberglass ceramic tiles and porcelain laminate and corian surfaces
- Cleans dirt grime and stains on grout tile tubs shower doors and vinyl curtains sinks counters urinals and plastic (unpainted) canvas awnings
- Not for use on metal formica painted surfaces marble granite terrazzo and natural stone
- Gallon olympic premium deck cleaner. ready-to use.
- Removes dirt and mildew stains.
- Simply apply, let sit for 5-10 minutes.
- Controls mould and mildew for aesthetic purposes
- Safe on urinals and plastic unpainted awnings
- Whitens fibreglass, tile and grout
- Brand name: sunnyside.
- Product type: deck cleaner.
- Container size: 1 gal.
- Restores surfaces prior to repainting
- Product has shelf life of 6 months or more
- Scrub free – why scrub when you can watch
- Durable construction for lasting use
- Easy to handle and use
- Application-hard, non-porous surfaces
- Simply spray on, allow black stains to disappear and rinse off! made in the usa.
- Exceptional quality: specially formulated to remove stains with a wide spray unlike a gel without fading your fabrics.
- Mmr has you covered a favorite with restoration contractors since 2003 specifications safe for use on.
- Concrete,specialty,stone,tile,vinyl,wood where to use.
- Bathroom,floors,kitchen,outdoor,specialty formulation.
- Free of bleach and chlorine
- Protect your exterior from algae, moss, lichen, mildew and fungus infection and all
- A revolutionary no rinse cleaner and preventive treatment system
- Need to improve the performance and appearance of paint clean the surface with mold armor instant mold and mildew stain remover prior to painting
- Kills mold visible results in 1 minute
- No scrubbing required
1. Star Brite Mildew Stain Remover – 32 Oz.

Product Details:
Specifications:
Item Package Dimensions L x W x H | 11.7 x 5 x 3.7 inches |
Item Dimensions LxWxH | 3.25 x 5 x 11.75 inches |
Style | 32 Oz. Spray |
Surface Recommendation | Fiberglass, Plastic, Rubber |
Contains Liquid Contents | No |
Reviews:
2. Wet And Forget 10587 1 Gallon Moss, Mold And Mildew Stain Remover

Product Details:
Specifications:
Reviews:
3. Scotts Cleaner, Outdoor – 1 Gal

Product Details:
Specifications:
Container Size | 1 Gal |
Contains Bleach | NO |
Number in Package | 1 pk |
Rinse required | Yes |
Product Form | Liquid |
Cleaning Surface Type | Outdoor |
Concentrated | Yes |
Each Weight | 9.300 LB |
Hazardous Material | No |
Removes Mildew | Y |
Removes Mold | Y |
Velocity | B |
Product Type | Outdoor Cleaner Concentrate |
Height | 12.00 |
Length | 4.88 |
Width | 8.75 |
Brand | Scotts |
ECCN | EAR99 |
Product Size (oz.) | 128 |
Color | Clear |
Net Content | 1 gal |
Form | Liquid |
pH Range | 5 |
Reviews:
4. Scotts Outdoor Cleaner Plus Oxi Clean Multi Surface Cleaner – 2.5 Gal Jug

Product Details:
Specifications:
Container Size | 2.5 gal |
Contains Bleach | NO |
Number in Package | 1 pk |
Rinse required | Yes |
Product Form | Liquid |
Cleaning Surface Type | Outdoor |
Concentrated | Yes |
Each Weight | 22.300 LB |
Hazardous Material | No |
Removes Mildew | Yes |
Removes Mold | Yes |
Velocity | C |
Product Type | Outdoor Cleaner Concentrate |
Application | Multi Purpose |
Net Content | 2.5 gal |
Form | Liquid |
pH Range | 5 |
Container Type | Bottle |
Reviews:
5. Wolman 16001 1 Lbs. Deckbrite Wood Cleaner & Coating Prep

Product Details:
Specifications:
Container Size | 1 lb |
Application Method | Brush Mop Roller Spray |
Paintable | YES |
Transparency | Transparent |
Indoor or Outdoor | Indoor and Outdoor |
Each Weight | 1.040 LB |
Hazardous Material | Yes |
Velocity | X |
Product Type | Wood Cleaner and Coating Prep |
Height | 7.50 |
Length | 2.50 |
Width | 5.50 |
Biodegradable | Y |
Product Height (in.) | 8 |
Product Length (in.) | 5.5 |
Product Width (in.) | 2.5 |
Substrate/Surface Use Type | Wood |
Concentrated | Y |
Interior or Exterior | Exterior |
Paint Base Material | Sodium Percarbonate |
Recommended Number of Coats | 1 |
Solvent Type | Sodium Percarbonate |
ECCN | EAR99 |
Product Weight (lb.) | 1.1 |
Vertical or Horizontal Application | Vertical/Horizontal |
Maximum Optimal Temperature (F) | 90 |
Minimum Optimal Temperature (F) | 40 |
Product Dispenser Type | Pouch |
Surface Location | Exterior Wood |
Net Content | 1 lb |
Form | Solid |
Specific Gravity | 0.739 |
Applicable Materials | Wood |
Flash Point | 94 deg C |
Odor/Scent | Characteristic |
Boiling Point | -18 to 18 deg C |
pH Range | 10.5 |
Hazardous Marine | Hazardous transport required |
Container Type | Pouch |
Reviews:
6. Concrobium Mold Control – 32 Oz

Product Details:
Specifications:
Assembled Depth (in) | 2.9 in |
Assembled Height (in) | 10.5 in |
Assembled Width (in) | 4.7 in |
Assembled Weight (lbs) | 2.4 lbs |
Item has MSDS (SDS)? | N |
Item is Shipped at this Packaging Level | Y |
Information Effective Date | 1/1/2008 12:00:00 AM |
Packaging Depth | 2.4 IN |
Packaging Height | 10.75 IN |
Packaging Width | 4.7 IN |
Package Weight | 14.9 |
Package Weight UOM | LB |
Net Packaged Quantity | 6 CA |
Product Form | Liquid |
Units of Measurement Quantity | 32 |
Units of Measurement | Fluid Ounces |
Scent | no odor |
Use Location | Universal |
Color / Finish | Clear |
Biodegradable | Yes |
Flammable | No |
Reviews:
7. Sun Joe Spx-Hdc1g House Deck All-Purpose Pressure Washer Rated Concentrated Cleaner

Product Details:
Specifications:
Customizable | No |
Flow Rate (Gallons Per Minute) | 4.1 – 6.5 GPM |
Interchangeable Wand | No |
Material of Item | ABS Plastic |
Number of Spray Tips Included | 1 |
Pressure Washer Cleaning Area | Medium |
Pressure Washer Psi | Less than 1500 |
Pressure Washer Type | Pressure Washer Cleaners |
Water Temperature | Hot |
Reviews:
8. Wash Safe Industries Ws-Sc-1g Clear Spray And Clean Composite Deck Cleaner

Product Details:
Specifications:
Is Discontinued By Manufacturer | No |
Surface Recommendation | Stone |
Contains Liquid Contents | Yes |
Reviews:
9. Mold Armor Instant Mold & Mildew Stain Remover – 32 Fl Oz Bottle

Product Details:
Specifications:
Assembled Depth (in) | 3 in |
Assembled Height (in) | 10.75 in |
Assembled Width (in) | 4.75 in |
Assembled Weight (lbs) | 2 lbs |
Active Ingredients | Bleach |
Biodegradable | No |
Cleaner / Dispenser Category | Stain Remover |
Combustible | No |
Container Type | Plastic bottle |
Flammable | No |
Indoor / Outdoor | Indoor/Outdoor |
Poisonous | Yes |
Ready To Use | Yes |
Recommended Safety Equipment | None |
Size In Gallons | 0.25 gal |
Use Location | Interior/Exterior |
Package Quantity | 6 |
Reviews:
My house has varying levels of impact from mold all around the house and I found a very bad/thick area of mold yesterday which pushed me to do more about it than spot clean (which is why I bought mold armor). I was disappointed this morning when I checked that area and there was still mold BUT the bottle does instruct you to pre-clean highly affected areas so that it can penetrate better, which I didn't do. I sprayed it again a few minutes ago and it's already looking better.
Another thing to note is that it is also a mold stain remover. This means it can "bleach" fabrics or other porous materials. I did have this happen on the side of a wooden table, but I noticed it and wiped it off quickly, and its not in a noticeable spot so I don't really mind. If you're using it in a highly visible spot though, I would recommend spraying it on a rag and then wiping it around until dry (and then rinsing). It may not have the same preventative effectiveness as letting it sit for ten minutes but it will still get the mold off.
Overall it seems to be very effective in killing mold; the mold began to dissipate immediately upon being sprayed. I can't speak to the preventative effectiveness of it since I've only been using it for about 12 hours. The instructions do say to reapply every seven days to inhibit mold growth, which is the biggest downside to me since my house is hard to ventilate and the chemical is so strong.
TL;DR it seems to be a great cleaner both for mold and otherwise, but read instructions to use it safely and effectivelyEmily Ekleberry
10. Wet & Forget .75 Gallon Moss, Mold, Mildew & Algae Stain Remover, 2 Pack

Product Details:
Specifications:
Product Dimensions | 10.5 x 7.0 x 5.75 inches |
Reviews:
11. Zep Commercial Mold & Mildew Stain Remover, No-Scrub, Professional Strength – 32 Fl Oz

Product Details:
Specifications:
Units in Package | 1 |
Unit Size | 32 fl oz |
Directions | Always test in an inconspicuous area prior to use. 1. Spray on the surface. 2. Allow to sit for 2 – 3 minutes. Do not allow to dry. 3. Rinse and repeat if necessary. If product contacts porcelain or metal, rinse immediately. |
Warnings | Eye irritant. May cause irritation to skin and mucous membranes. Contains sodium hypochlorite. Avoid contact with eyes and prolonged contact with skin. Avoid breathing vapors or spray mists. Use only with adequate ventilation. First aid: eyes: flush eyes with plenty of water for at least 15 minutes. Get medical attention immediately. Skin: flush skin with plenty of water. Get medical attention if irritation develops. Inhalation: get to fresh air. If irritation persists, get medical attention. Ingestion: do not induce vomiting. If person is conscious, give plenty of water to drink. Get medical attention. Handling & storage: keep container closed when not in use. Store in a cool, dry, well-ventilated place. Do not reuse empty container. Keep out of reach of children and pets. Do not mix other products or household chemicals, dangerous fumes may result. Keep bottle in upright position. Do not place bottle on clothing, carpeting, upholstery or any surface that may become discolored or damaged. For emergency medical assistance, call your local Poison Control Center or 877-541-2016. |
Reviews:
12. Olympic Liquid Deck Cleaner – 1 Gallon

Product Details:
Specifications:
Indoor or Outdoor | Outdoor |
VOC Level | 1 g/L |
Application Method | Brush/Cloth |
Container Size | 1 Gal |
Product Type | Deck Cleaner |
Paintable | NO |
Each Weight | 9.933 LB |
Velocity | D |
Hazardous Material | No |
Height | 11.75 |
Length | 4.00 |
Width | 7.75 |
Biodegradable | N |
Product Height (in.) | 10.5 |
Product Length (in.) | 4.25 |
Product Width (in.) | 7.5 |
Substrate/Surface Use Type | Wood |
Transparency | Transparent |
Concentrated | N |
Interior or Exterior | Exterior |
Paint Base Material | Water/Sodium Hypochlorite |
Solvent Type | Water/Sodium Hypochlorite |
ECCN | EAR99 |
Product Weight (lb.) | 9.95 |
Vertical or Horizontal Application | Vertical/Horizontal |
Maximum Optimal Temperature (F) | 90 |
Minimum Optimal Temperature (F) | 35 |
Product Dispenser Type | Plastic Bottle |
Surface Location | Wood |
Reviews:
I'm not sure who else would use this product. When I re-did my deck, I pressure washed and then sanded. There's no need for this product if you are pressure washing and sanding like you should, unless you got side tracked and waited a month after the pressure wash/sanding. This product is good for maintaining your deck more than anything.Steve Miller
13. Zep Commercial Mold & Mildew Stain Remover, No-Scrub, Professional Strength – 128 Fl Oz

Product Details:
Specifications:
Units in Package | 1 |
Unit Size | 128 fl oz |
Directions | Always test in an inconspicuous area prior to use. 1. Spray on the surface. 2. Allow to sit for 2 – 3 minutes. Do not allow to dry. 3. Rinse and repeat if necessary. If product contacts porcelain or metal, rinse immediately. |
Warnings | Eye irritant. May cause irritation to skin and mucous membranes. Contains sodium hypochlorite. Avoid contact with eyes and prolonged contact with skin. Avoid breathing vapors or spray mists. Use only with adequate ventilation. First aid: eyes: flush eyes with plenty of water for at least 15 minutes. Get medical attention immediately. Skin: flush skin with plenty of water. Get medical attention if irritation develops. Inhalation: get to fresh air. If irritation persists, get medical attention. Ingestion: do not induce vomiting. If person is conscious, give plenty of water to drink. Get medical attention. Handling & storage: keep container closed when not in use. Store in a cool, dry, well-ventilated place. Do not reuse empty container. Keep out of reach of children and pets. Do not mix other products or household chemicals, dangerous fumes may result. Keep bottle in upright position. Do not place bottle on clothing, carpeting, upholstery or any surface that may become discolored or damaged. For emergency medical assistance, call your local Poison Control Center or 877-541-2016. |
Reviews:
14. Sunnyside Deck Wash

Product Details:
Specifications:
Reviews:
15. Rmr-86 Instant Mold & Mildew Stain Remover (4 Pack – 1 Gallons)

Product Details:
Specifications:
Concentrated or Ready to Use | Ready to use |
Formulation | Regular Strength |
Pack Size | 4 |
Product Dispenser Type | Plastic Bottle |
Product Form | Liquid |
Recommended Surfaces | Concrete,Painted Surfaces,Wood |
Types of Surfaces Cleaned | Wood |
Where to Use | Bathroom,Floors,Kitchen,Outdoor,Specialty |
Certifications and Listings | No Certifications or Listings |
Container Size | 4 Gallon |
Product Size | 4 GA-Gallon |
Reviews:
16. Mold Armor 32 Oz Rapid Clean Remediation

Product Details:
Specifications:
Concentrated or Ready to Use | Ready to use |
Formulation | Regular Strength |
Pack Size | 1 |
Product Dispenser Type | Trigger Sprayer |
Product Form | Liquid |
Recommended Surfaces | Concrete,Glass,Grout,Metal,Painted Surfaces,Wood |
Types of Surfaces Cleaned | Multi-Purpose |
Certifications and Listings | ECO Certified |
Container Size | 32 Ounce |
Product Size | 32 OZ-Ounce |
Reviews:
17. Better Boat Mildew Stain Remover Cleaner Seats Fabric Vinyl Mold Stain Removal Gallon Size

Product Details:
Specifications:
Item Package Dimensions L x W x H | 12.28 x 10.51 x 4.65 inches |
Reviews:
18. Mmr Professional 1-Gal. Instant Mold And Mildew Stain Remover

Product Details:
Specifications:
Concentrated or Ready to Use | Ready to use |
Formulation | Professional Strength |
Pack Size | 1 |
Product Dispenser Type | Plastic Bottle |
Product Form | Liquid |
Recommended Surfaces | Concrete,Specialty,Stone,Tile,Vinyl,Wood |
Types of Surfaces Cleaned | Multi-Purpose |
Where to Use | Bathroom,Floors,Kitchen,Outdoor,Specialty |
Certifications and Listings | EPA Approved |
Container Size | 1 Gallon |
Reviews:
19. Citra-Shield Ready To Use Exterior Cleaner Algae, Mold & Mildew Removal & Prevention For Roof, Decks, Driveways

Product Details:
Specifications:
20. Mold Armor 1 Gal Rapid Clean Remediation
