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Internet # 321779247

Model # 7700405

Store SKU # 1008315224

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1 Gal. Exterior House and Siding Pressure Wash Concentrate Cleaner; Removes Algae, Mold and Mildew

$15.98
  • Exterior pressure wash cleaner for algae, mold and mildew removal
  • Concentrate cleaner for gutters, fences, house siding, stucco
  • Apply with pressure washer or pump up sprayer, makes 25 gal
  • View More Details

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Product Details

About This Product

ECOLAB Scientific Clean Exterior House and Siding Pressure Wash concentrate removes stains from algae, mold, and mildew. Quickly cleans dirt and debris: perfect for cleaning houses, buildings, concrete walls, painted fencing, gutters and downspouts. Formula requires no personal protective equipment follow pressure washer use instructions as directed.

Highlights

  • For use on virtually all exterior surfaces including house siding, fences, gutters, vinyl, brick, stucco, aluminum siding, steel and fiber cement
  • Tools Needed are a manual pump-up sprayer and pressure washer on-board tanks with siphon hoses
  • Instructions are to dilute to needed strength and apply using low pressure-washer spray nozzle or pump up sprayer first, allow product to penetrate for 5-minutes (do not allow to dry) and clean with water using a high pressure spray
  • For light soils mix 5 oz. of Exterior House and Siding Pressure Wash Concentrate with 1-gallon of water
  • For heavy soils mix 20 oz. of Exterior House and Siding Pressure Wash Concentrate with 1-gallon of water
  • Bleach-free formula requires no personal protective equipment follow pressure washer use instructions as directed
  • Formula requires no personal protective equipment follow pressure washer use instructions as directed
  • Bleach-free
  • Makes 25 Gal. of solution
  • Click here to shop for more Ecolab products
  • Clean Your Home Like a PRO. RENT A PRESSURE WASHER TODAY!
  • Return Policy

Product Information

Internet # 321779247

Model # 7700405

Store SKU # 1008315224

Additional Resources

Shop All ECOLAB
From the Manufacturer

Specifications

Product Size: 1 GA-Gallon

Dimensions

Product Size

1 GA-Gallon

Details

Application Method

Pressure Washer

Concentrated or Ready to Use

Concentrated

Features

Chlorine Free, Non-Corrosive

Health Facts

No Health Features

Helps Remove

Dirt, Grease, Mildew, Mold, Oil, Scuff Marks

Pack Size

1

Product Form

Liquid

Recommended Surfaces

Concrete, Fiberglass, Glass, Limestone, Metal, Painted Surfaces, Plastic, Slate, Stainless Steel, Stone, Tile, Vinyl, Wood

Returnable

90-Day

Scent

Clean

Warranty / Certifications

Manufacturer Warranty

N/A

Questions & Answers

Will it remove stains from Mold, Mildew, and Algae on white vinyl fences that has not been treated for years?
ByJul 13, 2026
1 Answer | 
Answer This Question

Hi Ryan, Yes it will remove those types of stains. It might take more than one application to remove.

By|Jul 20, 2026


    Is this safe for marine life if it gets in the water
    ByMay 15, 2026
    1 Answer | 
    Answer This Question

    At recommended use dilutions it will be ok near plants, shrubs, and flowers. It is recommended to first wet the plants just with water, proceed to clean the surfaces nearby then rinse the plants off afterwards with fresh water. Do not dispose of the concentrate in ponds, waterways or ditches.

    By|Aug 2, 2026


      Is this safe around plants and flowers
      ByMar 28, 2026
      1 Answer | 
      Answer This Question

      At recommended use dilutions it will be ok on plants and flowers, but first wet the plants just with water, proceed to clean the surfaces nearby then rinse the plants off afterwards with fresh water.

      By|Apr 18, 2026

        (1)

        Does this Product Ecolab scientific clean for exterior house and siding pressure wash for pexco winged plastic slats for fencing to remove dirt residue on fence work on residential plastic slats for fencing?
        ByNov 18, 2025
        1 Answer | 
        Answer This Question

        Hi Chuck, Yes this will work at removing dirt and residue from plastic slats and fencing.

        By|Nov 24, 2025


          Can I add bleach
          ByJul 12, 2025
          1 Answer | 
          Answer This Question

          Hello John! Thanks for your question! This formula was purposefully designed to perform without bleach and should only be used with water in your pressure wash machine.

          By|Jul 29, 2025

            (1)

            Hi, what is the projected effect this product may have on the carefully protected amphibious life in and around the chinks in my old farmhouse's old stone foundation, e.g., newts, tree frogs, toads, etc., and deep mats of moss they inhabit and their diet?
            ByJun 30, 2025
            1 Answer | 
            Answer This Question

            At recommended use dilutions it will be ok near plants, shrubs, and flowers. It is recommended to first wet the plants just with water, proceed to clean the surfaces nearby then rinse the plants off afterwards with fresh water. Do not dispose of the concentrate in ponds, waterways or ditches.

            By|Jul 30, 2025


              Square footage coverage per gallon
              ByApr 10, 2025
              1 Answer | 
              Answer This Question

              Hello Nestor and thank you for this question. The square foot coverage of this product is challenging to report since the calculation would depend on the type of surface you are cleaning and the level of soil of the product. We recommend diluting 5 oz for a light soil and 20 oz for a heavy soil. A rough estimate would be 200-400 square feet per diluted gallon of this product.

              By|Jul 5, 2025

                (1)

                Is it mixed with water or used straight.
                ByMar 1, 2025
                1 Answer | 
                Answer This Question

                Hello Gaman and thanks for this question. This product is a concentrate and should be mixed with water before use. For heavy soil you can use 20 oz of concentrate per 1 gal water, and lighter soil will need 5 oz product per 1 gal water.

                By|Jul 21, 2025

                  (1)

                  Viewing 1-8 of 43

                  Customer Reviews

                  4 out of 5

                  • 4 out of 231 reviews
                  • 52% recommend this product
                  Filter by:
                  Showing 1-10 of 231 reviews
                  This customer chose to rate the product and not provide text.
                  by
                  Far better than expected. Very happy with the results.
                  For background and reference I live in New england. The winters are cool to cold The Summer's are hot and muggy. North sides of homes get covered with mold and mildew if they are in a wet area. My home and my mother-in-law's home both suffer from mold and mildew on the north side of the home. We regularly clean the entire home with different solutions and pressure washers. This ecolab exterior house and siding pressure wash solution is the best I've used in 30 years. Let me start by saying I did clean the test home twice. As you can see in some of my pictures and in my video that I've linked below, I sprayed half of the gable end of a home and let the product sit for 5 minutes as directed. After about 4 or 5 minutes I started at the top with the pressure washer set to a fan spray and work my way down. What I did notice immediately was that as soon as I put the product on the siding where there was mold and mildew it immediately started to turn a blackish brown. This is not like putting water on green or dark mold and mildew where it gets to be a brighter green and sometimes a darker green. What I mean by spraying it on and having it turn black or brown is exactly that. It looked like it was actually dying within the first 5 minutes. Pressure washing the house took the normal amount of time to get the dirt the mold the mildew and the product off the siding. I took pictures as I went so you could see the before and after images. I took a picture as you will see of the left side after completing the first wash and the right side not completed as of yet. Once the entire end of the home was cleaned the first time, I then resprayed the entire Gable end of the home from top to bottom one more time. I waited about 4 minutes and then sprayed from a distance with the pressure washer and watched even more dirt mold and mildew come down the home. At that point I was very happy with the results. The entire end of the home with both treatments used only one gallon of the concentrate in water. I did mix the solution at 8 oz to the gallon. Tomorrow I'm going to start on the remainder of the home. Very happy with the results and will be using this product for many years to come. A link to a helpful video I think you might like is here: https://youtu.be/4R1gTuxtOUY
                  by
                  • Recommended
                  2 found this review helpful
                  A Good idea!
                  This pressure wash cleaner claims to remove algea, mold, and mildew stains for cleaning houses, buildings, painted fencing and gutters. It reports a one gallon container will make 25 gallons of wash to use in a pressure washing machine or pump-up sprayer. To test, I tried several concentrations in both my pressure washer and a 2 gallon hand spray tank. Following the directions, I applied, waited then used the power washer or deck brush to clean. When comparing the results of the applications, I found that the pressure washer alone provided the same cleaning results.
                  by
                  1 found this review helpful
                  Clean’s garage doors, Not only for Pressure Washing
                  I tried this product as an alternative to the exterior cleaners that kill grass and are otherwise bad for the environment. Rather than running it through a pressure washer I just put in a spray bottle to test it for strength and to make sure it didn’t peel off my paint. In order from left to right, Water, Dish Soap, This Cleaner. I am satisfied, definitely a good buy.
                  by
                  • Recommended
                  Since my pressure washer broke, I manually mixed a batch...
                  Since my pressure washer broke, I manually mixed a batch at 25 to 1 water/ECOLAB Wash for a spray bottle. Siding on our northern exposure grows unsightly algae. Per the instructions, five minutes after I sprayed it on, I gave it a light brushing, and rinsed it off. Mild odor, no noticeable affect on my skin. As you can see in the photos, it did a nice job.
                  by
                  1 found this review helpful
                  Just ok for aluminum patio cover
                  Used for to clean aluminum patio cover. First used pressure washer to clean off lose dirt the sprayed on at 5:1 dilution ratio. Using a brush to scrub was useless. Instead, used a microfiber mitt to scrub and followed with a pressure washer rinse. Results were medicare to ok. Patio is much cleaner but still does not yet seem clean. Would it have been any better if I had just used all purpose cleaner or car wash detergent? Perhaps. It certainly was not the magic wash I had hoped for.
                  by
                  • Verified Purchase
                  1 found this review helpful
                  easy to use
                  i used the Ecolab pressure washer soap with my ryobi pressure washer it worked great i used it to clean the floor of my Brother in laws pavilion while prepping it for the summer season. it removed the dirt and green stains from the cement with ease. it also cleaned the picnic tables i also used it to clean a car hauler trailer i simply applied the cleaner brushed it with a broom and sprayed a years worth of grime
                  by
                  • Recommended
                  Okay for light dirt but ineffective on heavily soiled areas.
                  I am very familiar with Ecolab as a company - I worked for the Institutional Division many years ago and they made superior products for institutional applications in hotels and restaurants. So when I saw that they now offered a product line in the retail/big box space I ordered this one to try on my cedar siding with a latex painted finish and painted trim as well as the railings around my deck. Following label instructions, I applied this via the suction line on my pressure washer. BTW, you can also mix this at a rate of 5 oz/gallon of water and apply with a manual tank sprayer. I waited the instructed 5 minutes and rinsed off using a 25 degree nozzle and pressure washer. I was disappointed with the results. While the siding was definitely cleaner, the painted railing were still pretty dirty. I then rubbed the top painted railing with a wet cloth and the dirty came right off. This leads me to believe that I would get better results by going over the entire surface to be cleaned with either a rag or soft brush after the cleaner was applied. Then rinse off. I used a different cleaner (in a green hose end quart spray bottle) from Home Depot for this same project last with year with far, far superior results. I cannot recommend this product to clean exterior siding or any painted surface for that matter. I know there are much better product for this purpose - I have used them and Home Depot carries them. This cleaner does have a pleasant odor, not harsh and chemically smelling.
                  by
                  Response from Ecolab Customer SupportMay 22, 2023
                  TC thank you for your feedback, please give us a call at 1(866) 999-7484 between 8-5 CST Monday through Friday if we can be of further assistance. EcolabSmallBusinessSolutions
                  1 found this review helpful
                  Good cleaner
                  This cleaner is nice works well and not a bad odor. I left it on a little bit longer than required and the stains came off my siding . Used a pump up hand sprayer to mix up some cleaner to try out. Sprayed the siding and then used a long handle brush to clean the area. Rinsed off area and what a difference!!! Just use it like the label says and it will work very well.
                  by
                  • Recommended
                  Love ECOLAB products
                  Love ECOLAB products we have used this house wash on our previous home and loved the results. We will be truly putting to serious use this May/June. We built a home and moved in at the end of last year and living where we are lawns are not put in until spring or summer. So we can’t wait to get rid of all the mud on our home. Building a home and moving in the winter is an experience as until the lawn is in.
                  by
                  • Recommended
                  Showing 1-10 of 231 reviews

                  Compare Key Features

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                  Product Snapshot

                  Great for homeowners looking for a non-corrosive, bleach-free cleaner, making house washing easier.
                  Great for homeowners looking for a powerful house and siding cleaner, making cleaning easier and more efficient.
                  Ideal for heavy-duty cleaning of concrete, asphalt, and more. Dissolves oil, grime, and dirt buildup with ease.

                  Cleaning Strength

                  Removes algae, mold, mildew, dirt, grease, oil, and scuff marks
                  Removes dirt, algae, mold, mildew and grease
                  Heavy-duty, dissolves oil, dirt, and grime

                  Coverage Area

                  Makes 25 gallons of solution
                  2500 sq. ft.
                  Makes 25 gallons of solution

                  Concentration Level

                  Application Method

                  Environmentally Friendly