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Corte Clean Composite Deck Cleaner Reviews

4.8 Rating 706 Reviews
98 %
of reviewers recommend Corte Clean Composite Deck Cleaner
4.8
Based on 706 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
Read Corte Clean Composite Deck Cleaner Reviews

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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A long-time neighbor, who I'd never met before covid, mentioned to me that her husband was home washing their trex deck while we were out walking. I responded that we also had a trex deck, but a very old one. We got to talking about trex and how we maintain it: I've always used power washing and diluted bleach over the last 25 years. She told me that's exactly what the recommend I NOT do! So I asked what she used and she threw out a name I'd never heard of before. I tried to Google it when we got home but my search hit a dead end. Later that week I asked her to write down or take a picture of the product she uses for the deck. It was Corto-Clean. At first I thought it was expensive but I decided to buy 2 bags of the product to give it a try. If it didn't work, I was out $90 but if I liked it, I probably wouldn't need to use as much going forward. Well she stopped by while I was cleaning the lower deck and I was so thrilled with the transformation even after only one application. The second application the next day made the deck look almost new again! The other deck, which is now a porch, had a very old stain from where we used to have our grill. While it didn't remove the stain entirely, it made a huge difference. I'm confident that I can make it nearly disappear with future applications. Only a small amount remains of the 2 bags I bought. Rugs & furniture cover my problem areas but I definitely will be cleaning with Corto-Clean at least annually, if not again in the Fall. I'm so glad she recommended your product & I'm thrilled with the results. So is my husband! Respectfully Rose Weed
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Posted 1 year ago
YOU WIN FREE Corte Clean [not "Corto"]! Generally, as we state on the website, it takes several applications to remove stains from Trex, especially if it has been previously power washed and/or chlorine bleached with sodium hypochlorite based products. Your are correct, your "other deck" will become clean with future applications because the deeper stains are allowed to saturate or root, especially when they are power washed into the composites, the composites expand and contract with heat and cold, the grease and oil deeply saturate, especially if it is not allowed to solidify on a warmer day, the more applications are necessary to thoroughly remove. Ultimately, your Trex deck should end up costing less time, labor and money or Corte Clean to keep clean when routinely used because less and less is used, once your Trex deck has been deeply cleaned of the tannins from the exposed wood fibers and dirty recycled plastic from which it's made. Most find that Trex then begins staying clean for longer periods of time once thoroughly Corte Cleaned and when routinely used. Please contact us when you need your free Corte Clean.
Posted 1 year ago
Corte Clean makes my deck look like new every time I use it. I use it once a year in the spring and have never been disappointed. I highly recommend this product!!
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Posted 1 year ago
Corte Clean is the best Timbertech cleaner and only one that I have used!! You do need to pretreat dark spots to do a great job.
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Posted 1 year ago
We love it! We use it every year. It does a great job on our Trex deck in Michigan.
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Posted 1 year ago
Corte Clean is the best stuff. Nothing like it! I professionally clean TimberTech twin finish for an HOA in New York. It gets mold and mildew, etc. I have previously tried other products such as Mold Armor which did nothing. I learned about Corte Clean from the TimberTech website.
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Posted 1 year ago
We have both Trex and TiberTech decking and I use Corte Clean at full strength to clean all of this material each year. It does an excellent of cleaning stains, mold and other stains on the decking material. It works best if you use a brush to scrub the deck after application and rinse when done. A good rain storm will remove any corte clean left after rinsing. I have used Corte Clean for 10 years and I am very pleased with it and the results.
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Posted 1 year ago
I have a 15 year old TimberTech deck. It still looks like new. I use Corte Clean Spring and Fall. Corte Clean was recommended by TimberTech and it's the only product I have ever used. I love that when I call, if they don't answer, I know I will always get a call back. I just signed up for the yearly subscription.
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Posted 1 year ago
We have been using Corte Clean every spring since 2008 and our Trex deck looks as new as when we bought it. It's located in Wisconsin. Corte Clean was recommended on the Trex website. I just signed up for the subscription service.
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Posted 1 year ago
We've been using Corte Clean every year for 13 years to clean our double Trex decks since they were new. It does what we need it to do in moist Virginia. It's a great product! We've never used anything else and our Trex looks almost new when cleaned. We learned of Corte Clean from our contractor and/or in the Trex literature. We use to buy Corte Clean at Lowe's but they stopped carrying it and we have been buying it direct online from its website ever since.
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Posted 1 year ago
I’ve been using Corte Clean for 25 years on my Treks deck with outstanding results. Highly recommended
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Posted 1 year ago
I wish I could remember how I found out about Cort Composite Deck Cleaner, so I can thank them for tell me about such a fantastic product. We have a light grey composite deck, which gets dirty and develops small dark spots. This is the only product that has worked, making the deck look like the day it was installed. The photo shows the difference this cleaner makes!
Corte Clean Composite Deck Cleaner 5 star review on 12th April 2023
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Posted 1 year ago
Thanks for the testimonial with BEFORE & AFTER photo!
Posted 1 year ago
I called TimberTech and they recommended Corte Clean when their other recommended product failed in cleaning the green from my deck. The other product was an expensive hassle, as I was having to clean my deck 3 times per year. The green just kept coming immediately back! Corte Clean keeps the deck clean on my condo in Ohio for nearly a year. It looks brand new after I use it. I have now been using it for 6 or 7 years. I just ordered more for the spring cleaning.
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Posted 1 year ago
Thanks for the testimonial & order!
Posted 1 year ago
I have used Corte Clean for over 10 years and have found it to be the best solution to cleaning my composite deck. most of my deck is grey so it is difficult to detect any weathering. I clean it every Spring. I know I should clean it again in the Fall, but I'm too lazy (and cheap)! It would make the Spring cleaning easier. All things considered, I am very happy with this product.
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Posted 1 year ago
Thanks for the testimonial! Don't be so "cheap"! It's likely costing you more time, labor & money/Corte Clean by skipping applying in the fall; as most composite manufacturer's recommend & our product was designed to be used. Proactively using Corte Clean at the "routine cleaning" reduced strength (up to 1/2 strength) will generally result in savings, especially if you apply before the composites get deep stains. This has been proven for we'll over a decade.
Posted 1 year ago
Great product, easy to use.
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Posted 1 year ago
The more routinely Corte Clean is generally initially used, less & less is generally needed, the longer composites are generally known to stay Corte Cleaned; sometimes for years. It is critically important to get composites thoroughly cleaned of the tannin bleeding issue which with exposed wood fibers and/or dirty recycled plastic can feed fungi! Failure to thoroughly Corte Clean composites of all stains is generally a waste of time, labor & money/Corte Clean. Thanks for the testimonial!
Posted 1 year ago
I tried everything to clean my composite deck, including power washing and various cleaners. I just could not get some of the stains out, including grease (from grill) and mold. I purchased the cleaner and long-handled brush. Using it was able to get most stains out. I have done this for the past two Springs and will do it again next year.
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Posted 2 years ago
Thanks for the testimonial! If all the stains didn't come out on the first application, "repeat" the application process at "maximum strength" and DO NOT skip the final label directions 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 anytime 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. If your deep stains don't come out, they generally come out over time with routine "Spring &Fall" proactive cleanings over time with problematic composite decks. Please call if you wish to thoroughly discuss. Happy Holidays!
Posted 2 years ago
Ordering on-line is easy and delivery is quick. I have been using Corte Clean for over 10 years. Once in the spring and once in the fall keeps my deck looking good.
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Posted 2 years ago
The is the best stuff I’ve ever used. I just cleaned my deck yesterday. So easy to mix in a bucket, no smell and works just like it says on the package. it removed dirt, dog poop and pine sap with ease, hardly any scrubbing. , and when I had a question I called and spoke to PERSON who was helpful and knowledgeable…Simply the best all around
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Posted 2 years ago
I must admit two (2) things. This is NOT one of them but, yes, I am from the South and sometimes use more words than might be necessary. BUT, "in the South" is where decks can sour the quickest due to the heat & humidity. So, bare with me here. Or "bar" with me. One, I do squeak when I walk, I am that tight with a dollar. BUT, I am MORE than willing to pay for quality products and/or services within my budget. And I do my homework, often relying on customer reviews and Consumer Reports to try to select a best value. I purchase my hearing-aids at Costco for that reason. Two (2), I have used Corte Clean many in the past. Initially because I considered the good reviews, which are compiled by an independent company, Reviews.io, and found it to be an extraordinary product, AND a good value. After my first use, I relied on my own experience and the results it rendered. Yes, I have tried to cut costs by using some other methods of cleaning, including a soda/vinegar wash. My bad. My deck is composite and 408 sq. ft. in size. It is the scene of MANY family gatherings over the past dozen years during the summer and into the autumn, usually through Thanksgiving. It falls victim to a LOT of spillage from our grand kids and great-grand kids, plus my grilling. Too late for "long story short", but I do HIGHLY recommend the product, which I have to apply about four (4) times per year. Thanks for listening, y'all. James Paul
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Posted 2 years ago
Thanks for the testimonial!👍🤟
Posted 2 years ago
The product works well if protocol is followed closely. I find the price to be the biggest negative. Used at 5 of their scoops per gallon, a fifty dollar bag makes TWO GALLONS. That is not a bargain. Another caveat is how slowly it dissolves even in warm water. You can't see the undissolved granules because it foams when stirred. Just go overboard on the stirring or you'll be fighting a plugged sprayer. Lastly, they could give you a scoop with a handle to avoid contact when measuring. ;O)
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Posted 2 years ago
We are always pleased to hear "the product works well". Common sense would imply a pump sprayer designed for powdered cleaning chemicals that has a filter to prevent clogging be used. One can additionally use less Corte Clean per gallon of water, especially if you have hard water to prevent clogging or not getting any undissolved granules in the pump sprayer. When proactively used at the reduced "routine cleaning" strength "at least twice yearly, spring & fall, or when stains appear", Corte Clean is even more of a bargain. Good luck finding a less expensive single proven product that cleans all common stains while not being corrosive to structural metal decking hardware.
Posted 2 years ago
Best Composite Deck Cleaner I have ever used. Found this product about 10 years ago and would not use anything else.
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Posted 2 years ago
Thanks for the testimonial!
Posted 2 years ago
Corte Clean Composite Deck Cleaner is rated 4.8 based on 706 reviews