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Corte Clean Composite Deck Cleaner Reviews

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"!!!

Visit Website

Phone:

(415) 924-9502

Email:

info@compositedeckcleaner.com

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Anonymous
Anonymous  // 01/01/2019
I purchased the product last fall and just got around to using it. My deck is about 17 years old and was a Home Depot composite deck.. Corti Clean did a really great job considering the age and stains on the deck. I have extra bags left over and will use again at the end of the season. It works much better than the bleach type product that I have used in the past. Although the deck doesn't look brand new, it looks great for an old deck. Definitely recommend it.
Helpful Report
Posted 5 years ago
Thank you for your Corte Clean Testimonial on Reviews.IO. You likely have Home Depot Veranda decking made by Fiber Composites, LLC. The "bleach" products you have previously used have likely exacerbated your cleaning issues, especially if mold stains or other fungus stains are your primary cleaning issue while excessively bleaching your composite boards. If your deck isn't thoroughly clean, you need to "repeat" the Corte Clean application process to the properly prepped, "thoroughly dry" composites between the temperatures of "65 to 85 F" in "direct sunlight" (allows the composites to expand & pore to open while not being too hot that the water Corte Clean is mixed with evaporates too quickly) at "MAXIMUM STRENGTH". DO NOT skip the final 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). Thoroughly rinse composite prior to using.” The best way to “thoroughly rinse” is to apply before it rains, “at least twice yearly, Spring & Fall, or when stains appear”. This will continue to clean your composite deck, removing deep stains while ensuring that it stays clean for the maximum amount of time. It is best to do this more often than not the first year or two if composites have been neglected or chlorine bleach or other sodium hypochlorite-based products have been previously used. Any weathering issues caused by stains blocking the sun will fade away over time, however, sodium hypochlorite-based products are known to excessively chlorine bleach composites, specifically Home Depot Veranda, which is the #2 biggest complaint right behind cleaning issues, specifically those caused by mold stains. Please call if you wish to thoroughly discuss, as we wish to help you make your deck look it’s best, while costing the least amount of time, labor & money or Corte Clean to keep it clean.
Posted 5 years ago
I've tried quite a few cleaners on my Timbertech deck. None of them cleaned it nearly as well as Corte Clean. It made it look like new! My neighbor, who had a deck installed the same summer that I installed mine, even commented how jealous he was. Needless to say, he and his parents now are hooked on CC as well!
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Posted 5 years ago
Great product have been using for 6 years. Just finished both tree decks this evening can’t wait to see how they look in the morning, it’s like xmas!Roy Kumerow Medina Ohio
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Posted 5 years ago
I have an old TimberTech deck on the north side of the house in Minnesota, so it doesn't get a lot of sun. I still have snow under the deck. It gets mold, especially where it sags and water pools. It's the T&G where you can't see the fastiners. I've tried other products, one from Duckback, soap & water, etc. My wife bought Corte Clean last year and it is superior. Other products are a joke.
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Posted 5 years ago
This will be my seventh year using Corte Clean to keep my Trex deck clean of speckled black mold in Wisconsin. I really do like the product. I’ve used other products from Home Depot and Menards in the past. This is the only product I feel works. The other products didn’t do the job and excessively bleached my deck. I use Corte Clean spring and fall and just ordered more.
Helpful Report
Posted 5 years ago
Thanks for the review! When Corte Clean is routinely used as it is designed & intended, Spring & Fall, mold stains can't root too deeply, once the underlying issue with the dirty recycled plastic & tannins from the wood fibers have been thoroughly cleaned from Trex composite decking. They generally easily come out if, as you have experienced. It is best to proactively apply Corte Clean “at least twice yearly, Spring & Fall, or when stains appear” to a “thoroughly dry” Trex deck. Getting ahead of the problem and proactively applying Corte Clean at the “routine cleaning” or up to ½ strength before composites receive moisture to remove any stain causing mold spores that have landed on your Trex before they hatch, root in and cause ugly stains is the key to generally spending less time and money keeping composites Corte Cleaned. This is why the Corte Clean label directions state “When Corte Clean no longer turns 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). Thoroughly rinse composite prior to using.” The best way to “thoroughly rinse” is to apply before it rains or snows, especially if “stains appear”. If stains appear, Corte Clean may not have that instant wow effect of immediately removing stains at the “routine cleaning” strength, but they generally disappear after the composites receive moisture within hours to several days. Unfortunately, most will ignore this info and end up spending more time & money keeping composite’s clean???
Posted 5 years ago
This is my 5th year purchasing Corte Clean. I am totally satisfied. It works for cleaning mold from TimberTech in Ohio. I use it twice per year to keep my deck clean.
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Posted 5 years ago
We have used Corte Clean on our timber Tech Decks for over 5 years and are thoroughly pleased with the results. Corte Clean is very easy to use - simply spray on Corte, brush lightly, rinse with water & the job is done. Dirt & mildew is gone. Can't say enough about the ease of use & effectiveness of Corte. Price of Corte is well worth benefit received from this product.
Helpful Report
Posted 5 years ago
I have an a Lowe's ChoiceDek that is at least 10 years old in Tennessee. It has the railing too. I am not sure how many square feet it is, but half is a covered porch. The covered area does not get the black mold stains. I use to use a sodium hypochlorite based product to clean the black mold. It was making the ChoiceDek rough. I thought it might be damaging the decking. Last year, my son purchased Corte Clean for me. It worked. I just purchased more this year.
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Posted 5 years ago
We have a Trex deck in Illinois. For the first two years we didn’t know what to clean it with. We then discovered Corte Clean and have used it for the past 8 years. It still looks new, like the day they put it in. My son cleans it for us, but I could do it, as it isn’t that big of a job. My neighbors are all putting in Trex decks because the wood decks are rotting out. We have been recommending Corte Clean to them too. I just placed my order for more today.
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Posted 5 years ago
I have a 5-year-old Elk composite deck. I was beside myself when black mold stained my new composite deck, for the first 2 years, which is 10’ off the ground and 27’ X 12’. I tried Clorox the first year, which did nothing. I then found out about Corte Clean. I have since been using this product spring and fall. Last year, I forgot to do the fall cleaning. To my surprise, the deck is still clean except for a few small stains. The deck now stays clean for longer & longer. Last year, when I removed the patio furniture, orange rusty water spilled all over the deck from one of the chairs. I thought this would never come out. I mix up a little Corte Clean, sprayed it on the affected area, and the stains came right out with a little brushing. I have a tip for those that use a cheap pump sprayer. Use a strainer to filter out any undissolved Corte Clean to prevent clogging. I selfishly wish you continued success, as I will be needing Corte Clean in the future and just bought more today. If I could give 10 stars, I would.
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Posted 5 years ago
I have been using Corte Clean for many years on my Timbertech deck. I'm in Maryland and the mold on my deck is brutal, I use Corte Clean and the product brings the deck back to new. I would suggest using bottled water if you have well water as it dissolves much better.
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Posted 5 years ago
I have a Tek deck in Columbia River Washington which gets mold. My daughter has one in Oakland California, which too gets mold. I ordered too much Corte Clean, so I gave the rest to my daughter. We both loved it. My neighbor has a Tek deck too. She saw how well the Corte Clean worked, so now she will be using it too. I have ordered more, but unfortunately, the weather isn’t quite right to clean the deck, so I will wait. I love the YouTube Corte Clean video. It reminded me to only use Corte Clean when the weather permits.
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Posted 5 years ago
I’ve had an AZEK composite deck for 5 to 7 years. I get black mold and dirt in Illinois. The first year I used Corte Clean to clean my deck, I hired someone to clean it, as I didn’t want to do the work. I now use Corte Clean spring and fall; however I may do it three times this year. Corte Clean is a great product that I have ordered again this year.
Helpful Report
Posted 5 years ago
I have a TimberTech composite roof deck which was installed in 2012. My contactor recommended Corte Clean to clean it. I have been using it once per year ever sense to clean bird poop, oil, dirt, black & green mold, etc. The deck gets lots of sun, so the mold isn’t too bad. I use a pump sprayer and stiff brush to clean the deck. The rain does an excellent job of thoroughly rinsing it. I just bought another four bags for my yearly cleaning today.
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Posted 5 years ago
I had a Trex deck installed here in Pennsylvania in 2006. It has the Trex Railing. It began to get green mold and the occasional wine spills. I originally purchased Corte Clean from my local Lowe's. When they no longer carried it, I began buying it from its website. I believe this is my 7th season, so I think I have been using Corte Clean for approximately 10 years. I use Corte Clean to clean my deck every April and October and just ordered today.
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Posted 5 years ago
Had used another composite cleaner previously which required many more steps and more preparation and did not even work as well as Corte. I highly recommend Corte cleaner
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Posted 6 years ago
We are sorry to hear you wasted time with another composite cleaner. Did the composite cleaner that you previously used contain sodium hypochlorite or oxalic acid? If so, please have a professional check your structural metal decking hardware (screws, nails, joist hangers, etc. to make sure it is safe. Corrosion caused by the use of corrosive to metal cleaning chemicals is currently the #1 safety issue facing composite owners that ignore structural metal decking hardware corrosive cleaning chemicals disclosures by following retailer, chemicals & composite manufacturer corrosive cleaning chemical recommendations! Hopefully you choose to use Corte Clean proactively, “at least twice yearly, spring & fall, or when stains appear”, at the “routine cleaning” strength, preferably before composites receive moisture to prevent stains. This is proven to cost less time & money to keep composites clean. Thanks for the review!
Posted 6 years ago
Amazing Product We have Choice Decking on our porch, front steps and back steps with multiple stains/mold on all. After using many different products, Corte-Clean was the ONLY product that made any impact and removed most stains. This company REALLY does care and took the time and effort to work with me directly on how to remove the stains and care for my decking. My only regret is that I wish I knew about this product before wasting my time, effort and money on other products. Highly recommend this product and 5 stars to Greg, the representative I dealt with.
Helpful Report
Posted 6 years ago
Thank you for the review! Corte Clean will generally remove ALL the stains from your ChoiceDek, however the stubborn deep stains will generally come out with the proactive use of Corte Clean, if they didn’t come out during the initial cleaning. Please consider using Corte Clean proactively, at the reduced “routine cleaning” strength (which saves money), preferably before the deck receives moisture, to prevent new stains, while continuing to remove the most stubborn deep stains. If Corte Clean won’t remove the deepest stains from ChoiceDek, it is likely nothing will. Do not skip any part of the Corte Clean Label Directions, especially the part that states “When Corte Clean no longer turns 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. Thoroughly rinse prior to using.” The best way to thoroughly rinse is to apply Corte Clean prior to it receiving moisture, if you wish to generally save time & water. Unfortunately, your previous routine use of the multiple other cleaning products at the recommendation of the ChoiceDek manufacturer, for cleaning the mold stains, grease, etc., in addition to the rubber mats you used to hide the stains, when the ChoiceDek recommended cleaners failed, made it more challenging to thoroughly clean due to the stains deeply rooting & saturating. This greatly exacerbated the cleaning issues with your ChoiceDek. Additionally, based on the photos your ChoiceDek, it has weathering issues caused by the stains & rubber mat blocking the sun from evenly bleaching/fading your decking. The weathering issue will naturally weather away once thoroughly Corte Cleaned, over time, by exposure to the sun. Those that follow the ChoiceDek manufacturer cleaning instructions, BE WARNED, it generally costs more time & money to thoroughly Corte Clean ChoiceDek once the multiple products they recommend ultimately exacerbate cleaning issues & fail while causing weathering issues. Please keep us posted, as we want to make sure your ChoiceDek gets thoroughly Corte Cleaned, stays clean for as long as possible, & you are spending the least amount of time & money keeping it clean. Corte Clean has been proven to do this specifically with ChoiceDek, by ChoiceDek owners, for approximately 15 years.
Posted 6 years ago
This product worked wonders on my Timbertek steps and railings. Cleaned the mold right off. Then I used the had some solution left over and I treated my concrete patio. It worked like magic. With just a little scrub the concrete patio looked like new. An outstanding product.
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Posted 6 years ago
I am a long time user of this product and a believer in its ability to keep black mold at bay. Our ChoiceDek has been in place for more than ten years now and I first started out using other products but none of them have performed as well as Corte Clean. I only need to use 2 to 3 cups per application and I do a cleaning each spring and fall.
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Posted 6 years ago
Thanks for the Corte Clean review! You likely meant 2 to 3 scoops of Corte Clean powder, not cups, for routine cleaning. If you are using cups, you are likely wasting money by using too much Corte Clean per gallon of water. The trick then becomes how little Corte Clean powder can be used proactively, per gallon of water, to keep composites clean. It’s kind of like trying to maximize fuel economy, of a vehicle, on a road trip, to save money. Proactively Corte Cleaning composites, before they receive moisture and mold stains occur, or other stains saturate, generally costs less money, time & labor to keep Corte Cleaned.
Posted 6 years ago
Corte*Clean does a great job on our 10-year-old TimberTech deck. We've tried other products, but nothing works like Corte-Clean. This is the 1st year we had to deal with several grease spots - and we're happy to say they disappeared! We are so pleased with the appearance of our deck - it looks great. We are late cleaning the deck this year because of several months of heavy smoke in Medford, having roof work done and getting the house painted, so we were lucky to have beautiful weather in October to finish this project.
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Posted 6 years ago
Corte Clean Composite Deck Cleaner is rated 4.8 based on 707 reviews