Corte Clean Composite Deck Cleaner Reviews

Name: Corte Clean Composite Deck Cleaner
Rating: 4.84

4.8 Rating 707 Reviews

98 %

of reviewers recommend Corte Clean Composite Deck Cleaner

4.8

Based on 707 reviews

Shipping & Delivery
Delivery Methods	Courier, Postal Service
Average Delivery Time	Within 5 Days
On-time Delivery	100%
Accurate And Undamaged Orders	100%
Customer Service
Communication Channels	Email, Telephone, Live Chat
Queries Resolved In	Under An Hour

About Corte Clean Composite Deck Cleaner:

DISCATISFIED CORTE-CLEAN® CUSTOMERS (anything less than a 5 Star Review)!

PLEASE READ BEFORE POSTING A NEGATIVE REVIEW!!!

Please immediately contact Corte LLC if you are not satisfied with our proven product, which has existed for over a decade, with so many positive reviews & re-peat customers. We are a small, 1 product, family run, American made business. We will do our best to help you, as we are EXPERTS in composites & keeping them clean.

We wish to help! (415) 924-9500 X 1
Please leave a message if we fail to answer the phone.
We will call you back ASAP!

We want to make sure you not only get your composites THOROUGHLY CLEAN, we want to make sure you understand how to generally SPEND LESS TIME & MONEY, in the future, keeping composites clean. Corte-Clean® is proven to do this when used "at least twice yearly, spring & fall, or when stains appear" at the "routine cleaning" reduced "up to" 1/2 strength. If mold stains are returning, you are waiting too long to proactively Corte-Clean®, and likely wasting more time, labor and money than necessary! See how little Corte-Clean® can be proactively used to save. THis has the added benefit of being more ECO Responsible!

Corte-Clean® is the most recommended solution for deep cleaning Composite Deck, Dock & Fence of all common stains, NOT JUST those caused by MOLDS. Say goodbye to mold & mildew stains, black spots, grease, oil, rust and more with out the need to expensively purchase and laboriously use multiple non-compatible poisonous and/or corrosive to structural metal cleaning chemicals, especially those that contain oxalic acid or sodium hypochlorite, the active biocide in chlorine bleach which OSHA DOES NOT RECOMMEND FOR MOLD & science by Oregon State University has proven to be ineffective from the wood of which most composites are partially made. Don't be another sucker for "The Chlorine Bleach SCAM"!!!

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Phone:

(415) 924-9502

Email:

info@compositedeckcleaner.com

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Corte Clean Composite Deck Cleaner 5 star review on 5th June 2023

Jerry L

Anonymous

Anonymous // 01/01/2019

Filter: Rated 5 None 5 Stars 4 Stars 3 Stars 2 Stars 1 Stars Helpful

“Corte Clean works very well on TimberTech decking.”

Helpful Report

Posted 6 years ago

“By far the only thing that will work, due to my deck being 15 years old, and never has been cleaned,I will have to do again this fall, the amount of dirt and mold that this product took off was amazing.”

Helpful Report

Posted 6 years ago

“I've use Corte Clean for about 4 years and it really brings my deck back to life after a miserable Chicago winter. I spray it on and let the rain activate the cleaning process. Using it 2x a year really keeps it looking great. If there are a few dark, moldy spots left after the winter, I give them another shot and wait for the rain, unless I'm really impatient. That one time I just sprayed it on again, let it "work" for a few minutes, and then used an old push broom to brush over them. However, since I'm basically lazy and would rather do something else - I just pop a suds and wait for the rain.”

Helpful Report

Posted 6 years ago

“The product worked as advertised on my TimberTech deck and stairs. I just followed the directions on the packaging as well as the website and it worked! My deck and stairs look like new. I wish knew of this product before wasting time with other products that did not even come close to cleaning my deck with three times the effort.”

Helpful Report

Posted 7 years ago

If only every customer that used Corte Clean "just followed the directions"...

Posted 7 years ago

“I have a 5 year old Trex deck here in Florida. I used to buy Corte Clean at Lowe’s but now buy it direct, from its website. I have noticed that the fresher Corte Clean is, the better and faster it removes stains. The Best If Used By Date is incredibly important, and I get the freshest product when I order it from its website, unlike when I purchased it at the retailer. This saves me time. I have noticed that with proactive use, my deck stays clean for longer periods of time, so I proactively use this product four times per year. I don’t mind paying for products that work, and this one does, as I have tried other products. I just ordered more, as we received incredible amounts of rain with hurricane Irma and it is again time to clean my deck.”

Helpful Report

Posted 7 years ago

Thank you for your 5 Star Review and pointing out how critically important the Corte Clean “Best If Used By:” date is, when purchasing at retailers, using the product proactively, as it was designed and intended, when the composites have received rain, which results in fungus stains if spores exist. Proactively applying Corte Clean, preferably before it rains, to remove loose spores, before they root and cause stains is always best. Corte Clean is no longer available through Lowe’s, but is available through many other retailers or directly from its website.

Posted 7 years ago

“Just wanted to let you know that your product worked to my susprising satisfaction especially if you follow specific directions and read the part of sunlight weathering. The part about the sprayer clogging was so true as now I warm the water some to dissolve all the granules before spraying. I had to scrub multiple times in some bad spots that bricks have sat for over two years on the composite but it finally removed the stains. This seems to be the only chemical that works as advertised even though I have tried many others that only gave partial results. Best to your team on formulating a great product. - Ron S.”

Helpful Report

Posted 7 years ago

Thanks for the review/testimonial of Corte Clean! Weathering is definitely the 2nd biggest complaint in the Composite decking industry, right after cleaning issues. Generally, the optional filtration device, offered by some pump sprayer manufacturers, which is designed for powdered cleaning products, like Corte Clean is definitely the way to prevent clogging. Warm and/or distilled water works great too for dissolving Corte Clean, specifically when used above 4 Scoops. Unfortunately, as we state on the website, it generally takes more time and costs more money to clean neglected or not properly or proactively Corte Cleaned composites, as other products generally can exacerbate cleaning issues, as you likely experienced with the bricks saturating into your deck for two years. Had Corte Clean been proactively used, prior to the bricks being placed on the composites, it likely would have been much easier to Corte Clean, costing less time and money.

Posted 7 years ago

“We love your product”

Helpful Report

Posted 7 years ago

“Didn't have to use my pressure washer for the good part of a day. A pressure washer just pushes stains deeper. Will purchase this product again. What would really make me happy is to reward loyal customers with a buy 9 get 1 free offer.”

Helpful Report

Posted 7 years ago

Thanks for the 5 Star Review! The use of pressure washers should only be used in in accordance with composite deck manufacturer recommendations, as some composite manufacturers generally don’t recommend them. Composites can generally be easily scared or damaged with pressure washers while exacerbating cleaning issues by driving stains deeper into the pours of most composites. Pressure washers should never be used with Corte Clean! All that is needed is generally a hose, deck brush and water to properly prep composites prior to using Corte Clean or to thoroughly rinse. The only time pressure washers should ever need to be used is to prep neglected composites to remove loose dirt, debris, leaves, pine needles, etc., generally a week or two before using Corte Clean. It is extremely important for the composites to “thoroughly dry”, as stated on the Corte Clean label directions, especially if common black mold stains or other fungus stains exist, prior to using Corte Clean.

Posted 7 years ago

“This Deck Cleaner is one of the very few cleaning products that delivers on all of its promises. For us, because we let the deck go for 2 years, there was some scrubbing to do, but unlike other cleaners, the deck was really clean and bright when we finished the work. We will be using it regularly.”

Helpful Report

Posted 7 years ago

“I have had a Trex deck for 17 years. It was installed in 2000. It didn't get dirty for the first few years here in ON, Canada. Then it got mold and other stains. I tried many products, at the recommendation of the Trex Company. They contained sodium hypochlorite and oxalic acid. They temporarily only bleached out the mold. When the deck received moisture it came right back, costing me more time and money to again clean. Season after season it got worse, until it took over the deck. I then discovered Corte Clean at a retailer. I haven’t found anything that works as well, for as long, and proactively using it is the key. I just phone ordered 3 more bags. Proactively applying Corte Clean costs less money and time to keep my Trex deck clean.”

Helpful Report

Posted 7 years ago

“I am 3/4 of a century old but got out on my veranda to give it a scrub with Composite Deck Cleaner, using the extensive directions provided. Honestly, I did not indulge in a heavy scrub, on my knees of course. Rinsed with the hose, let it dry and voila, magic, all the grease spots and others that would not be removed in the past are gone! I am more than pleased. My neighbours are begging for a bit to try. You may have more customers. Definitely 5 star plus satisfaction.”

Helpful Report

Posted 7 years ago

Thank you for the review. One shouldn't have to ever "heavy scrub, on my knees" ever when using Corte Clean, provided it is being used as per its label directions. Now, the trick is to keep your Veranda composite decking clean, which should generally cost you much less time, labor, and most importantly MONEY, when properly proactively used as our product was designed and intended. Generally, using Corte Clean, at the reduced strength, "at least twice yearly, spring & fall, or when stains appear" is proven to do this, especially in Washington, which gets so much routine moisture. Please let us know if you wish to thoroughly discuss. (415) 924-9500 X 1 P.S. You and your neighbors should order Corte Clean together, if you wish to generally save even more money.

Posted 7 years ago

“In 2009 we built our deck using timber tech twin face composite. we were aware that all composites had mold issues. We had ideal conditions with full sun ,no trees, didn’t cook on it , and had proper pitch for water runoff. Cleaned it every spring and fall with ordinary household products and for about 4 years had no real issues, then the black dots started. Tried to power wash it along with several deck cleaners but none would do the job. Around year 7 it was getting really bad especially when it rained. Came across corte clean and gave them a call. Tech support was great and had all my questions answered.Ordered one bag just to test it out. I had a few problems but was able to correct them. The first was your supposed to keep the corte clean from drying for a min. of 20 minutes,but I had a hard time because i sprayed it on in the middle of the day in full sun. Corrected that by applying it the next time in the late afternoon. The next was the sprayer i bought sprayed in a fine mist and it took too long to wet the deck. Corrected that by drilling the nozzle hole larger. Other than that the product worked great. we were afraid it would bleach the deck but it didn’t.There was a little color change where the black was but we’re sure it will even out from the sun. To us it doesn’t even matter because the deck looks way better without the black mold. Our timber tech deck is now 8 years old and looks great again. We are totally satisfied with the product. It did what it was supposed to and we would recommend it to a friend.”

Helpful Report

Posted 7 years ago

“We purchased a house in North Carolina, which was built in 2002. It had a moldy, nasty Trex deck, especially in the shade. It likely had never been cleaned. Corte Clean did a great job cleaning it. I still have 1/2 a bag left.”

Helpful Report

Posted 7 years ago

“This is the only product that I have found to be effective in cleaning my TREX deck.”

Helpful Report

Posted 7 years ago

“We have first generation Trex installed 12 years or more ago. We have used many products...some with bleach. Those cleaned well but mold/mildew returned. We were willing to give Corte*Clean a try. We talked directly with Corte*Clean before using the product for additional information or tips. We feel like we followed directions to a T. We cleaned our large deck well before using Corte*Clean and we cleaned our deck at least twice with the product. The results were not perfect...but we didn't expect that. Our deck looks very good...better than we expected. We will definitely re-order with the goal of cleaning at least twice or more each year. We are VERY happy!”

Helpful Report

Posted 7 years ago

Thank you for the review/testimonial and 5 stars. The “many products” you have previously “used”, especially those that contain sodium hypochlorite, commonly known as “bleach” generally exacerbate common black mold issues with Trex decking, as mildew is incredibly rare. Other products may appear to clean “well”, especially the first several times used, as we state on the Corte Clean website. Unfortunately, sodium hypochlorite based products cause irreversible corrosion to structural metal decking hardware which can be a safety issue which should be expensively inspected by a professional and visible corrosion stains around screws and nails which can be difficult to remove when allowed to saturate deep into Trex. Some even think these are mold stains. If you can still see the mold stains, specifically when the Trex is wet, with water, as water magnifies common mold stains on Trex decking, it generally rapidly returns when it receives moisture, as you likely experienced. Additionally, failure to thoroughly clean the dirty recycled plastic and wood fiber of tannins, from which your Trex deck is made, is the food from which funguses such as mold feed when it receives moisture. Generally, sodium hypochlorite based and other products don’t properly clean these items or the underlying issue with first generation composite decking. Failure to properly proactively Corte Clean Trex decking “at least twice yearly, Spring & Fall, or when stains appear”, as stated on the Corte Clean label directions, from the time Trex is installed, especially if other products have been previously used, generally results in it costing more time and money to initially thoroughly Corte Clean Trex decking. This is why the Corte Clean product label directions state “If stains are still visable, repeat application process. Composites that have tough stains, been neglected or previously cleaned with other products and/or sealed may require several applications & additional Corte Clean.” We would be HIGHLY surprised if only Corte Cleaning your Trex “deck at least twice” would get it thoroughly Corte Cleaned, especially since other products had been previously used, specifically those that contain sodium hypochlorite! You definitely need to do additional “repeat” Corte Clean applications at “maximum strength” to a “thoroughly dry” Trex deck in “direct sunlight” between “65 to 85 F.” if the “results were not perfect” or the Corte Clean is still turning “dirty or discolored”. By your own statements, it appears you didn’t “followed directions to a T”, and stains likely remain. If mold stains immediately return, when your Trex deck receives moisture, you will know that you didn’t thoroughly Corte Clean your Trex deck. Hopefully you didn’t skip the final Corte Clean label direction which states “When Corte Clean no longer becomes dirty or discolored, it can be diluted & allowed to dry on weathered composite surfaces. Corte Clean is designed to continue to clean any time it receives moisture. A white residue may remain until thoroughly rinsed (use a brush if necessary).” The best way to “Thoroughly rinse composite prior to using” is to apply before it rains, especially your Trex deck. Moving forward, should you generally wish to spend less time and money keeping your Trex deck clean, we HIGHLY recommend proactively applying Corte Clean “at least twice yearly, Spring & Fall, or when stains appear”. Trex decks like yours, we would suggest proactively applying Corte Clean more often. Example: Fall, Winter, Spring & Summer for the first season or two. Generally, you will start noticing your Trex deck staying clean for longer and longer periods of time. You currently likely have “weathering issues”, as discussed on the Corte Clean website, where the mold and other stains or items have been allowed to block the sun from evenly bleaching, fading or what the Trex Company has referred to as “Naturally Weathering”. Because Corte Clean isn’t designed to generally bleach, fade or weather Trex decking beyond what occurs naturally, like sodium hypochlorite based products, only the sun will “naturally weather” out any color variations caused by neglect to routinely Corte Clean your Trex deck. You should “expect” Corte Clean to make your Trex deck “perfect” and generally spend much less time and money keeping it clean in the future. If you have any questions, please call us to discuss. (415) 924-9500 X 1

Posted 7 years ago

“Corte Clean removed the black spots from my Trex decking. It took a couple of treatments, but follow the instructions and they WILL DISAPPEAR. The other cleaner I tried (sodium hypochlorite) didn't touch the stain. Corte Clean TWICE per year prevents the stains, which is much easier that removing the stain once they are established.”

Helpful Report

Posted 7 years ago

“We have the original TREX composite decking. Corte Clean is the only product that removes the mold and atmospheric stains. This product I've used for about seven years and I use it twice a year....once in the spring and once in the fall. This keeps the deck looking good and worthy of use.”

Helpful Report

Posted 7 years ago

The key to this review is “keeps the deck looking good”! Generally, when Corte Clean is proactively used, “spring and once in the fall”, as it was designed and intended, to keep “original TREX composite decking clean”, as the Trex Company has recommended, it costs up to ½ the money and takes generally 2/3rds less time. Thanks for the 5 Stars!

Posted 7 years ago

“Been using corte clean on trex deck for 5 years...LOVE IT! Easy to use A believer in the company, always helpful with questions and ordering. THANKS”

Helpful Report

Posted 7 years ago

“For years I tolerated my dirty Trex original deck. Nothing (detergents, oxiclean, Clorox, etc.) would get it clean. If someone dropped a potato chip on the trex, I'd freak out inside because I knew the grease stain would be there for years! I discovered Corte Clean at a local hardware store. It took away all stains, even a huge rust stain in a visible area that I had completely given up on. Yes, it weathered the deck's surface a bit, but the payback of a clean deck made it well worth it. Last year, I went back to the local hardware store and they had replaced Corte Clean with a similar product. It didn't work as well even though the application and granules was just like CC. Recently, I found CC on the internet and bought a pouch. Yesterday, I cleaned a majority of my deck with CC, but ran out. So, I finished with the left over of the similar product. You can actually see the line in my deck between CC side and the other product's side. CC was incredibly better. CC is good stuff, double your order so you don't run out.”

Helpful Report

Posted 7 years ago

“This is my second year using Corte Clean on my 450 sq ft. Trex Deck. I purchased my house 3 years ago which was built in 2004 with Trex deck that was part of the recalled flooring. Previous owner did not have it fixed under warranty. Every year the black mold spores come out in early spring and continue to grow as weather warms up. Corte Clean works fabulous you just need to give it time to work. I do 10' X 10' sections at a time and spray and scrub with a brush. Spray with hose to wash off. Previous owner did not maintain the deck and now after 2 years of Corte Clean deck looks amazing. Hard to believe it continues to work after it dries, but it does. Recommend this product - it's amazing and eco friendly.”

Helpful Report

Posted 7 years ago

Corte Clean Composite Deck Cleaner is rated 4.8 based on 707 reviews