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

Sort by: Most Recent Most Recent Highest Rated Filter: None None 5 Stars 4 Stars 3 Stars 2 Stars 1 Stars Helpful

“We have a TimberTech deck in MI. It gets grease and oil, in addition to mold, mostly in the shaded areas. We learned about Corte Clean from a friend and have ordered before. It's powerful and a great product.”

Helpful Report

Posted 4 years ago

“Corte Clean Composite Deck Cleaner is the best product we have found to keep our deck looking as close to new as possible. We have had this deck since 2010 (uncapped version), and when it is cleaned with Corte Clean, it looks great. We are Seniors and are still cleaning it ourselves--mostly my husband, but I have done it a time or two in his absence. To quote him, "Cleaning a deck is never easy, but CorteClean makes it rewarding." Reading and following directions are also important to get the best result. Customer service has always been helpful and courteous. Their delivery has been reliable all the years we have used this product. Not sure if photo actually attached, but if it did, you can see the results of cleaning with Corte Clean on the boards on the right. Those spots on the boards on the left are after being wetted down, and before cleaner is applied. Amazing results!”

Corte Clean Composite Deck Cleaner 5 star review on 8th June 2020

Helpful Report

Posted 4 years ago

Thanks for the testimonial w/photo! Let us know next time you need Corte Clean. You get a discount.

Posted 4 years ago

“We have Lowe's ChoiceDek that was installed in 2010. The deck gets mold, as it is located in Tennessee. We've previously used chlorine bleach products which appear to have damaged the deck. We switched to Corte Clean 5 years ago. This is a great product which I just ordered more today.”

Helpful Report

Posted 4 years ago

Unfortunately, some manufacturers recommend chlorine bleach or other sodium hypochlorite based products for cleaning mold? They do this even though science has shown these products exacerbate mold, excessively bleach/fade or weather composites color beyond what is generally disclosed & corrode structural metal decking hardware. These are the top 3 complaints with composites that lead to the #1 SAFETY issues & expensive early replacement. This is known as THE CHLORINE BLEACH SCAM! Thanks for the testimonial & your order. We have discounted your order by $10 today.

Posted 4 years ago

“I have a TimberTech deck that was promoted as "no" maintenance. I should have done additional research before having it installed. Within 2 years I knew I had a problem. I found Corte Clean online and called to discuss my situation. They could not have been more helpful and gave me very detailed instructions. It was a lot of work because I had to protect the wood rails and aluminum balusters, but the result was worth it. Last year I tried a product that was guaranteed for 3 years and did not requires as much prep work. Five months later I am back as a 5 time Corte Clean customer. The results are much better! It is worth the time and money. I will be ordering more today. Thank you Corte Clean!”

Helpful Report

Posted 4 years ago

Generally, it's a lot of work the first time Corte Clean is used because composite owners have neglected or used other products exacerbating cleaning problems, especially those caused by mold. This unfortunately generally costs more time & money/Corte Clean to initially clean. Protecting items regardless of what you use is key! Not only is Corte Clean cleaning the stains, it's cleaning the "tannin bleeding" from the wood fiber of which your TimberTech is made & can feed molds. We love it when people try other products & report their failure, especially those that have previously used Corte Clean. Unfortunately, these products can exacerbate cleaning issues, costing more time & money to again Corte Clean. It's almost funny that people spend $10K to $20K on average for a composite deck then try to spend as little money as possible to clean it? We don't blame them, but you get what you pay for with Corte Clean. Those that proactively use Corte Clean, at the reduced "routine cleaning" strength "at least twice yearly, spring & fall, or when stains appear" won't find a more cost effective PROVEN product for keeping composites clean, of all common stains, not just those caused by molds. Most other products have low perceived price points, and/or make lofty claims, but you have to buy two to four times as much, use it more often & buy other expensive products to clean specific stains. You get what you pay for with Corte Clean. Please call if you wish to place an order, as you get a discount for your testimonial.

Posted 4 years ago

“We used Corte Clean Composite Deck Cleaner on our very neglected almost 20 year old composite deck. This product did an awesome job with minimal effort. We will be using this product for future cleanings!”

Helpful Report

Posted 4 years ago

“I've first used Corte Clean approximately 12 years ago to clean my Trex deck. I use to buy it from my local True Value in MD. They stopped carrying it, so I have tried many other, including some of the other oxy type products, as they are less expensive. The biggest difference is you don't have to scrub. Many of the other products are less expensive, but you get what you pay for. I'm back to Corte Clean and just bought more today.”

Helpful Report

Posted 4 years ago

“I recently posted a very poor review about this product that was incorrect. This product does in fact work when used correctly. My deck was in very bad condition due to neglect as can be observed in the photos. After speaking with Greg the owner of the company I was instructed on the proper way to clean and care for my deck. As a result of the Memorial Day Holiday customer support was not able to contact me immediately regarding my request for a refund and I posted the review in haste. The owner did contact me, apologized, and took the time to explain in detail how to use the product. In addition he immediately issued a refund and shipped additional product for free. "THUMPS UP"”

Corte Clean Composite Deck Cleaner 4 star review on 28th May 2020

Helpful Report

Posted 4 years ago

See 4th previous review from "Anonymous" & especially the Corte Clean comments. Now we wish to make sure your Trex deck remains clean, at the lowest possible cost, with the least amount of time, labor & effort. Proactively using Corte Clean "at least twice yearly, Spring & Fall, or when stains appear" at the reduced "routine cleaning" Corte Clean strength is proven to do this. We'd suggest more proactively for the first year or 2, before the composites receive moisture, if the goal is for the composites to ultimately stay clean for generally longer & longer for less & less.

Posted 4 years ago

“1,000 Square feet of lite colored TimberTech 2010, which they discontinued right after we installed it because it didn't hold it's color. It gets black mold and stains around the flower pots where the irrigation overflows. Been using Corte Clean in MD for 6 years.”

Helpful Report

Posted 4 years ago

“We have a TimberTech deck in Ohio. I originally thought we had a defective deck, as I thought black oil was coming out of it. I talked to the contractor that installed it and he recommended Corte Clean. Fantastic! Works.”

Helpful Report

Posted 4 years ago

“Corte Clean Composite Deck Cleaner is the best cleaner of composite deck I have ever used.”

Helpful Report

Posted 4 years ago

We wish every customer thought the same thing! Unfortunately, there will always be those that don't purchase enough to initially thoroughly clean composites or read, comprehend & follow it's label directions, therefor, no matter what we do, will never be happy. For us, accepting this fact, no matter how hard we try to help, has been difficult for us to understand. Thanks for this testimonial, especially after the last downer. You get a discount on your next order, just call.

Posted 4 years ago

“-WAS NOT SATISFIED WITH RESULTS. -AFTER CONTACTING THE COMPANY NUMEROUS TIMES VIA EMAIL I COULD NOT SUCCESSFULLY RECEIVE A REFUND. -THERE ARE PRODUCTS THAT GIVE BETTER RESULT FOR SUBSTANTIALLY LESS MONEY. -ONCE REFUND IS REQUESTED YOUR IMMEDIATELY ACCUSED OF NOT ABIDING BY NOT ONLY THE PRODUCT USE INSTRUCTIONS BUT ALSO THE COMPOSITE DECK MANUFACTURES GUIDELINES FOR CARE.”

Corte Clean Composite Deck Cleaner 1 star review on 26th May 2020

Helpful Report

Posted 4 years ago

Anyone whom has ever used Corte Clean, by following its label directions, can take a look at the above pictures & know it wasn't properly used. Those that let their deck get this mold stained have generally ignored this composite manufacturer guidelines for care, of "Spring and Fall", especially if they have previously used sodium hypochlorite, greatly scientifically exacerbating the mold growth (mold is no longer spotting, spots have grown together infesting the deck, & is now green mold too, as this is a worst case scenario!). This was confirmed with the owner of this Trex deck via a phone call. Unfortunately, every now & then we have a Corte Clean customer that refuses to read, comprehend & follow its label directions, especially when using Corte Clean for the first time to clean a majorly neglected black & green incredibly nastily mold stained composite deck, like the deck in question (Numerous Corte Clean label directions were not followed as too confirmed via phone call. 1.) Did not "If stains are still visible, 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." Customer only purchased 2 bags of Corte Clean to clean approximately 750 Sq. Ft., which isn't nearly enough for a Trex deck in this state. Bought 2, needed at least 3 to 6+. 2.) Customer failed to "sprinkle Corte Clean powder directly on composite that is wet with Corte Clean, scrub with brush", as this label direction is intended for neglected composites like this. 3.) "Allow composite to thoroughly dry before applying Corte Clean". this includes when "repeat application process" 4.) "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 prior to using." This label direction is CRITICAL for composites in this condition! Failure to follow any and all of these label directions will result in FAILURE!!!) The first unhappy email we received from this customer, was Friday, 5.22.20 @ 2:09 PM & we responded at 2:43 PM; 33 minutes later. We didn't receive a response until Saturday, 5.23.20 @ 1:37 AM in the early morning??? Upon reviewing this customers response & above pictures of this customers composite deck, it was determined that the Corte Clean label directions were not followed, to which we replied via email on Saturday, 5.23.20 @ 10:44 AM, on Memorial Weekend. We even requested a call back, which we didn't receive, if the customer wished to discuss??? Like most products Corte Clean doesn't offer a refund unless covered under the "Guarantee & Limited Warranty". Failing to properly use Corte Clean by following it's relatively simple CRITICALLY IMPORTANT label directions isn't covered, so we didn't offer a refund. In good faith, we offered FREE "replacement product" for this customer to complete cleaning the composite deck, including FREE SHIPPING. We requested the label directions be followed to thoroughly Corte Clean this composite deck. Unfortunately, this customer chose to ignore & use another product, thereafter, to finish cleaning this composite deck. Hopefully this customer didn't choose to use a PERCEIVED less expensive scientifically unproven sodium hypochlorite based product, for all the reasons stated on the Corte Clean website. PLEASE DO NOT BUY Corte Clean if you aren't willing to read, comprehend & follow its label directions, or purchase enough to complete the job, as Corte Clean will likely fail! We don't want unsatisfied customers. We are interested in not only making sure composite deck owners get their composites thoroughly clean, and understand how to maintain the clean appearance, for generally less. Unfortunately, there will always be those that are so furious their composite deck gets dirty with mold stains & other common stains, they have to routinely clean it, there is no making them happy. With this customer, even though he didn't have a warranty claim, we refunded him & sent him 3 more FREE Corte Clean bags to finish cleaning his composite deck, restore some of its original color and make generally stay clean for longer periods of time, of all common stains, not just the black & green mold stains. Hopefully he chooses to upgrade this review.

Posted 4 years ago

“I have a ProCell deck with Trex railing which I had installed around 2005. ProCell was bought by AZEK. It is located in New York. The deck & railing gets black and green mold, especially on the north side on the railings. Corte Clean makes it disappear! It takes it right off. I like to power wash first, then let it thoroughly dry. The composite manufacturer recommendations of soap and water; forget it! It doesn't work. I've been using Corte Clean for years. I use to buy it locally, at 84 Lumber, but the store no longer carries it? The bags were always damaged and out of date? I forgot to clean it last year, so it looks a little worse this year. I just ordered more. This stuff is great! I recommend it to everyone. Thank god I found out about it from a lady in Florida.”

Helpful Report

Posted 4 years ago

The number of AZEK & other PVC composite owners has been steadily growing. If you neglect PVC, or use the wrong cleaning chemicals, mold becomes a problem. It's not much different than other types of plastic. Proactively cleaning composites made from PVC, like those made from PP or PE, generally costs less time, labor & Corte Clean or money. Those that procrastinate, generally unfortunately spend more. Thanks for the testimonial! We discounted your order today by $10 to show our appreciation.

Posted 4 years ago

“I have a Trex deck in Upstate NY. A former co worker helped install it in 2008-09. We had some extra, so we made planters out of it too. The deck is about 14 X 40. I use to buy Corte Clean locally, until one year, I used it and it didn't work so well. They sold me bags that were beyond the best if used by date. I've been ordering it online ever sense, for the last 3 or 4 years, to avoid this problem. I generally clean it every spring and fall to keep it clean. Last fall, I didn't have time. The black mold is apparent this year. I am very happy with the product.”

Helpful Report

Posted 4 years ago

Unfortunately, some retailers don't properly manage their inventories on a first in/out bases. Corte Clean, like other cleaners, paints, etc. degrade over time. When this occurs, they don't perform as the manufacturer intends, which generally costs the consumer more time & money, if they perform at all. Unfortunately, this happened to you. This is why dates should always be checked when purchasing any chemical from a retailer! It's always great to hear Corte Clean keeping Trex decking clean, when properly proactively used. Unfortunately, composites don't remain clean without proactive use, as you unfortunately discovered by skipping the "fall" cleaning. Fortunately, it doesn't sound too bad. Thanks for the testimonial & order!

Posted 4 years ago

“I tried lots of other products to keep the red and black mold off of my Trex deck in PA. Nothing worked until someone told me about Corte Clean. I have now been using it for about 8 years. I love it! It's easy to use also. I have also gotten lots of good advice from the owner of the company. I use it spring and fall. I don't have any mold pictures to sure anymore because Corte Clean has kept it from coming back.”

Helpful Report

Posted 4 years ago

Unfortunately, the "products" most Trex owners have "tried", prior to Corte Clean, were recommended by the Trex Company. Unfortunately, the Trex Company continues to ignore mold remediation science & all the known problems with these cleaning chemical recommendations? Fortunately, you found Corte Clean! You win a discount, so contact us next time you need it.

Posted 4 years ago

“Cleans and removes mildew and mold like a charm.”

Helpful Report

Posted 4 years ago

That's the idea! Most don't realize Corte Clean cleans all other common stains too, as they are fixated on the molds. If you choose to use it proactively, before mold stains return, it can save you time & money too. Please consider using it "at least twice yearly, spring & fall, or when stains appear at the reduced "routine cleaning" strength to see how much you can save, while keeping your composites clean. Thanks for the review & let us know when you need more. We'd like to offer you a discount.

Posted 4 years ago

“I installed a Trex deck approximately 15 years ago at my home in New York. I have an awning that covers half the deck. The part that is exposed gets the dirtiest. I've only used Corte Clean and have been satisfied years. When you find a good product you stick with what you know. I use to buy it elsewhere locally and I just bought it directly from the company.”

Helpful Report

Posted 4 years ago

“I have a 14' X 6' Tamco Evergrain composite deck and railing in Maryland. It's the cedar color which is no longer available. The deck was installed in 2005. It gets green with mold and then turns black, I believe from the nearby airport? I originally heard about Corte Clean on a radio do it yourself talk show which promoted it as being the best product and available at Lowe's, where I initially purchased the product. They unfortunately no longer carried it, so I skipped a year, because it was more expensive online. I only used the power washer that year. Corte Clean is a fantastic product that additionally gets rid of the citronella candle, food and other stains without taking off a layer of the composite like the power washer. I've been using it for years.”

Helpful Report

Posted 4 years ago

MD gets lots of moisture which results in mold growth. EverGrain composites are notorious for getting green mold first, then turning black with mold, especially when only power-washed or neglected as you unfortunately discovered. Corte is always appreciative when retailers no longer carry Corte Clean, & the end user ends up buying it direct, even if it costs more. Thanks for your order this year & feel free to contact us next time you need Corte Clean, as you win! We'll give you a bag for FREE! We greatly appreciate your business for approximately decade, as this is when we quit selling Lowe's.

Posted 4 years ago

“My friend has a composite deck. She has tried many products to clean black and green mold over the years. Last year, she tried Corte Clean. To our amazement, it didn't come right back this year, like it did with the other products. It must have cleaned the items below, where it dripped down, as it didn't come back on these items too. We were both so impressed! My friend told me "Corte Clean might seem a little more expensive, but it's worth it." I just ordered it to clean my deck this year too.”

Helpful Report

Posted 4 years ago

Those that thoroughly Corte Clean composites, generally notice composites staying clean for longer periods of time of all common stains, not just those caused by molds. However, its important to proactively apply Corte Clean at the "routine cleaning" reduced strength, "at least twice yearly, spring & fall, or when stains appear" as composites don't stay clean forever. Using Corte Clean proactively generally costs less time, labor & money, as generally 1/2 or less is used to keep composites clean when proactively used before stains occur. Because of this fact, Corte Clean generally ends up costing less & less. While "Corte Clean might seem a little more expensive" you get what you pay for as it generally saves our customers a fortune over the life of an expensive composite deck. Unfortunately, most won't take the time to educate themselves after purchasing & installing an expensive composite deck. Thanks for the testimonial.

Posted 4 years ago

“I just finished cleaning our top deck. I might be too critical. It did a good job. I am just never completely satisfied. I thought I rinsed the deck very well. I had a few stops that I needed to rinse again.”

Helpful Report

Posted 4 years ago

As long as Corte Clean did a "good job"... It's always best to apply Corte Clean before natural moisture to generally thoroughly rinse. This generally eliminates the need to "rinse again". Please note: The longer the ugly white Corte Clean residue remains, the deeper it generally cleans, the longer composites generally remain clean, the less time, labor & money one generally spends on Corte Clean to keep composites clean when used "at least twice yearly, spring & fall, or when stains appear" at the reduced "routine cleaning" strength. Thanks for the testimonial.

Posted 4 years ago

“I used Corte Clean on a composite deck that hadn't been cleaned with Corte Clean before the deck boards were approximately 8 years old. The surface had been pressure washed annually. I followed the instructions to-the-letter and the deck looked as it had the day that it was built. Extremely pleased with the product and will use it every year the deck!”

Helpful Report

Posted 4 years ago

Now we want your composites to remain clean, while costing you the least amount of time, labor & money. Don't wait another 8 years! Proactively using Corte Clean "at least twice yearly, spring & fall, or when stains appear" at the reduced "routine cleaning" strength has been proven to do this. See how little you can proactively use to keep your composites clean. The less you use, the more you generally save with the added benefit of being more Eco Responsible.

Posted 4 years ago

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