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Corte Clean Composite Deck Cleaner Reviews

4.8 Rating 707 Reviews
98 %
of reviewers recommend Corte Clean Composite Deck Cleaner
Company Reviews Product Reviews
215
 Metrics Info
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
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"!!!

Visit Website

Phone:

(415) 924-9502

Email:

info@compositedeckcleaner.com

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Rita K
Verified Buyer
“Deck was really dirty and full of black spots . Corta Clean spiffed it up and looks so much better. We should have gotten to it last year but better late than never. We used Corta Clean a few years back as we purchased it from Costco. Now, the only way we can purchase it is directly on line. The product works and so we will order it again . Great product .”
Helpful Report
Posted 8 years ago
Larry S
Verified Buyer
“Worked very well. I was not sure if it would damage bricks (underneath my deck) so I covered them with cloth.”
Helpful Report
Posted 8 years ago
Ron L
Verified Buyer
“Works GREAT”
Helpful Report
Posted 8 years ago
John H
Verified Buyer
“Used it again to remove mold spots from timbertech. Worked great. There were a few stubborn spots that did not come off and were in a well traveled walkway. While the deck was still wet I sprinkled some of the powder on those spots, waited a while and scrubbed with a brush and the spots were gone. Great product. I'll be using it again fall.”
Helpful Report
Posted 8 years ago
Dennis E
Verified Buyer
“I have been using Corte*Clean Composite Cleaner - 2000A for about 8 years on my Trex deck. Corte*Clean works better than any other cleaner I have used. If you follow the directions exactly and don't take any shortcuts, you will be amazed with the results. It is important that your deck be completely dry and in direct sun before you begin. Also, clean a small section of the deck at a time and keep it wet with the Corte*Clean solution until it has time to work. Then rinse thoroughly. For me, Corte*Clean is the best choice. Denny, Southern Ohio”
Helpful Report
Posted 8 years ago
John R
Verified Buyer
“One of the few products I've ordered online that actually worked. I will purchase this product again.”
Helpful Report
Posted 8 years ago
DON H
Verified Buyer
“I have a Trex deck about 6 years old. After about one year I notices alot of black spots on the deck. Did some research and determined it was black mold. Googled the problem to get a solution and called Trex as well . I didn't want to use all the bleach products out their which I felt were unsafe after reading their warnings on the packages in the home stores. Then i went through the list of products that Trex recommended. One of them was Corte-Clean. I ordered 3 containers as they were not sold in bags at that time. I really had to work at it as the mold was really bad. After 2 applications it was much better but not as good as new. I called Corte-*Clean and spoke to Greg, who I believe is the owner. He made some suggestions and the next weekend I gave it one more shot. Big improvement and I was very happy. The next year the mold was back but not as bad as year one. I did 2 coats this time and I was very satisfied. Don't believe anyone who tells you Trex is "NO " maintenance. Fast forward to 2 years ago. I wasn't feeling 100% and did just one application in May. Deck came out really good and I was set for the season. Last year we had a million things going on and only did one application to half the deck. I just went outside today to look at the condition of the deck. I cannot believe their is no mold whatsoever on either half of the deck. The deck is a little dirty but not really that bad considering. I just called Corte Clean and ordered more product for this year. Greg answer ted the phone and we spoke for a while. He said it must be the product has finally gotten into the TREX and gets reactivated when moisture hits it. He gave me a few tips from things they have learned in the last few years, and I look forward to an easy cleaning this year. My advice is BUY this product and follow the instructions to the letter. Call the company if you have any questions or problems and only use the product if the expiration date has not been exceeded. Good Luck Don Heide -New York”
Helpful Report
Posted 8 years ago
Douglas F
Verified Buyer
“I have used this product for a number of years! Tried other products one year, but was very dissatisfied with them. Applies easily not time comsuming, and rinses of with just water hose. As for price it's like the old saying, YOU GET WHAT YOU PAY FOR.”
Helpful Report
Posted 8 years ago
Ray
Unverified Reviewer
“So, I read the instructions on the website and ordered 2 bags of Corte*Clean for my 600 square foot deck. I installed the Trex 6 years ago and since it was "Maintenance Free" haven't done much more than wash it with soap and water and elbow grease. We finally got decent weather here in northern Illinois (I had a completely dry deck at least) and since it was on the cooler side, decided today was the day to try the product since it wouldn't dry to fast in the sun. I have a 4 gallon backpack sprayer, so I mixed up 4 gallons at maximum strength. As I was using the included scoop, I was surprised to barely get 10 scoops out of a bag. Glad I ordered 2, wish I had ordered 5! I applied it, brushed it, applied again, keeping the product wet on the deck for the 20 minutes. While I was waiting the 20 minutes I sprayed the next section, keeping everything wet. When the 20 minutes was up on the first section, I only had the stairs left to treat. I rinsed the first section off then treated the steps. Got to the rest of the sections on time and had just enough product left to treat the first piece a second time. What a difference! Definitely need to order more next time. I was skeptical but am now a believer!”
Helpful Report
Posted 8 years ago
George S
Verified Buyer
“My north facing composite deck in Wisconsin accumulates the usual dirt but much of it also begins to develop a green stain. This product is very effective, relatively easy to use and really does the job. I highly recommend it.”
Helpful Report
Posted 8 years ago
Ann A
Verified Buyer
“Excellent product! I have been using it for the past three years. The product is easy to use and gets the job done. The customer service is excellent and the delivery of the product is outstanding. I would highly recommend Corte Clean. It is a product I will continue to use in order to keep my deck looking like new. One important feature is the product keeps on working in the rain and snow. Great feature!”
Helpful Report
Posted 8 years ago
Mary J
Verified Buyer
“Our deck gets the Northwest intense summer sun and the long, dreary, moldy winter. We also get a big dose of road grime since we live next to a US highway. We needed a great cleaner and Corte Clean is it. So glad I found it on the internet. It shouldn't be a secret!!”
Helpful Report
Posted 8 years ago
Dracie C
Verified Buyer
“I've tried quite a few cleaners and it's the only one that works. I buy it every spring as it performs best when it's fresh. Tough spots may require two cleanings. It may not look like it's doing much while the deck is still wet, but give it a chance. Once dry, your deck will look great.”
Helpful Report
Posted 8 years ago
Michael L
Verified Buyer
“I've been using this product since 2008 and always get great results. I use on my composite deck, pvc deck fence and rails, and even vinyl siding. Just have to be careful not to get it on the windows. This product is recommended by the deck manufacturers and that is how I found it originally. Never tried anything else as this does a great job. Customer service is excellent and shipping is quick.”
Helpful Report
Posted 8 years ago
Roann T
Verified Buyer
“Great stuff especially for first generation composite decks. We put our deck in, in 2005 and we have tried every thing you can think off to clean it and this is the only thing we have found that really works. Be sure to follow directions and buy fresh product!”
Helpful Report
Posted 8 years ago
Donna H
Verified Buyer
“The pictures on the web site were impressive but I found them hard to believe. We live in the Northwest where it rains at least half of the year, and our deck is almost completely shaded by large trees, so moss and mold are a given. For two years I tried so many things to clean the moss and mold off of our deck, and none of them worked very well. I was always left with black spots. We don't know for how many years the deck was neglected before we bought our home, but as you can see from the photo, by spring it is really a mess. I bought Corte Clean out of sheer desperation and as a last resort before just replacing the deck. I added 4 scoops of Corte Clean to a gallon of water (nearly maximum strength), sprayed it on, and scrubbed the deck with a deck brush. After 20 minutes, I thoroughly rinsed it. When it dried, we were shocked to see how clean it got. It was a miracle! It was like getting a new deck. I never would have believed it if I hadn't done it myself. I can't recommend Corte Clean highly enough!”
Helpful Report
Posted 8 years ago
Billy L
Verified Buyer
“My composit deck was in terrible shape with stains from a wide variety of sources. I followed the recommended directions and what a wonderful surprise. An almost clean deck. After one application the years worth of stains have significantly deminished. I want to follow up with a second cleaning. I believe, from what I have already experienced, that my eight year old deck will look as new as the day I finished building it. I wish I had taken some before and after pictures. Oh well. What I am going to do is order two more bags. Then I will reorder in the fall. Great product! I am a satisfied customer.”
Helpful Report
Posted 8 years ago
Stephen M
Verified Buyer
“Corte Clean is the only composite deck cleaner that I have found that will properly clean a composite deck. Multiple applications is required for tough stains, but it works.”
Helpful Report
Posted 8 years ago
Carl R
Verified Buyer
“Corte Clean does a great job on composite deck. It cleans the black mold very nicely.”
Helpful Report
Posted 8 years ago
Susie W
Verified Buyer
“I have tried some other similar products. I liked the fact that this one included no bleach; however, I don't think it cleaned as well as the other products I have used over the years that did include bleach (deck has been down for 10 years).”
Helpful Report
Posted 8 years ago
Thank you for the review! You likely know that the Corte Clean website states “Corte LLC freely admits that sodium hypochlorite based products generally appear to quickly bleach out mold, on most composites, the first several times used”. If you have "tried some other similar products" in the past, " that did include bleach" with the active biocide “sodium hypochlorite”, for the purpose of cleaning mold, this generally exacerbates the mold problem, making your composites the perfect environment for mold to return and deeply root. The previous use of scientifically unproven chlorine bleach based biocides generally results in mold stains and other common stains being more resistant to quickly being cleaned with Corte Clean! Unfortunately, this results in it generally costing more money [Corte Clean] and time to initially thoroughly Corte Clean composites, when our product is first used, as you have experienced. There is a reason why no reputable mold remediation professional or organization, recommend chlorine bleach or other sodium hypochlorite based products for the purpose of cleaning mold. WHY? It is scientifically proven to exacerbates the problem while causing many other expensive problems! Example… Sodium hypochlorite is HIGHLY corrosive to the structural metal decking hardware, such as screws, nails & joist hangers, made from galvanized or stainless steel almost always used in the construction of composite decks, docks or fences. Are you aware that major decking hardware manufacturers have disclosed the general corrosion risks of cleaning chemicals their literature? Are you aware how expensive decking hardware is to replace and what happens when it fails, as generally the added weight from people causes these corroded items to fail because they don’t know any better. Welcome to what is known as “The Chlorine Bleach Scam” in the composite decking world! The previous use of sodium hypochlorite based products generally results in the need to “repeat” the Corte Clean application process to a “thoroughly dry” composite surface, until thoroughly Corte Cleaned. It is extremely important that when you “rinse with water”, “water magnifies stains”, “if stains are still visible” that you “repeat” the “application process.” This is why the Corte Clean label directions state “Composites that have tough stains, been neglected or previously cleaned with other products” “may require several applications”. Failure to thoroughly remove mold stains generally results in the stains immediately returning when composites receive moisture and is generally a waste of time and money. Corte Clean isn’t designed to “generally bleach/fade/weather composites beyond what occurs naturally”, like chlorine based products. Once thoroughly Corte Cleaned, it generally takes around 20 weeks of direct sunlight to even out the weathered look of most composites. Corte Clean relies on the sun to even out the color variations caused by stains blocking the sun, once thoroughly Corte Cleaned. It won’t bleach out mold stains or weathering issues like chlorine based products because it isn’t designed to. Rather, Corte Clean is designed to thoroughly remove the stains so they don’t immediately return when the composites receive moisture. Unlike most sodium hypochlorite based products, Corte Clean will clean the exposed wood fibers, that composites generally are approximately 50% made, from exposed wood fibers, to eliminate tannins and tannin bleeding. This is the food funguses feed from, such as black mold, green lichen or moss. For these reasons, and others, some customers that have previously used sodium hypochlorite based products “don't think it cleaned as well as the other products”. If you choose to proactively use Corte Clean, as it was designed and intended, “at least twice yearly, spring & fall, or when stains appear”, you will likely find that it costs you less time and money to keep your composites clean, not only of common mold stains, but grease & oil, rust & tannin stains and just about any other type of stains. Over time, composites tend to stay clean for longer, as “Corte Clean is designed to deep clean and continue to clean any time it receives moisture” until thoroughly rinsed. Proactively using Corte Clean, preferably before composites receive moisture and stains occur or saturate at the reduced Corte Clean strength of “up to 2.5 scoops for routine cleaning”, is the key to generally spending less time and money because it can be “allowed to dry on weathered surfaces”, at the “diluted strength”. The ugly “white” Corte Clean “residue may remain until thoroughly rinsed”. The best way to “thoroughly” rinse, is to allow rain or snow naturally rinse it. If the composites are going to be used before they receive moisture it is recommended that one “thoroughly rinse” with a hose and water. Please call us if you wish to thoroughly discuss. (415) 924-9500 X 1
Posted 8 years ago
Corte Clean Composite Deck Cleaner is rated 4.8 based on 707 reviews
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