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

“I have a Trex deck located in New Jersey, which I have previously Corte Cleaned of mold, approximately 2 years ago. Corte Clean worked! Our deck looked like new. Last year we didn’t use Corte Clean, but only power washed. The mold got worse & worse as it took over the entire deck. We had some left-over Corte Clean with a “Best If Used By:” date that was in 2016. We tried using this product, and the mold stains did not come out, wasting our time and effort. I ordered fresh Corte Clean and called the company. So, I did the entire deck over. The deck wasn’t installed properly, with proper gapping. Water pools on the deck. It doesn’t drain properly. You can see how close the boards are in my pictures. That's a real problem. I had to blow the water off the deck. The only problem was that I was still working on the deck after the sun went down. So, in the morning there were a few water stains because it stayed wet overnight without the sun. Wow! A big difference. The fresh Corte Clean worked! I am very pleased. Finally got rid of all the dirt in between the slats. The mold stains are gone. I can live with the way the deck looks now and will proactively use Corte Clean so I spend less time and money.”

Corte Clean Composite Deck Cleaner 5 star review on 29th August 2018

Helpful Report

Posted 6 years ago

Thanks for the review w/ pictures! YOU WIN! FREE CORTE CLEAN FOR YOU! This will help keep your Trex deck clean, especially in NJ, where composites receive routine moisture, resulting in common black mold & is a known problem, especially with Trex decks. Proactively applying Corte Clean, at the “routine cleaning” strength “at least twice yearly, spring and fall, or when stains appear”, generally results in Trex staying clean for longer & longer periods of time, while costing less & less money or Corte Clean. The trick is to see how little one can use, saving money, while being as environmentally responsible as possible to keep your Trex clean. Neglecting them and/or power washing can exacerbate mold problems, as you have unfortunately found. Thank you for pointing out why the Corte Clean has a “Best If Used By:” date on every bag, states “works best in direct sunlight” & to “Make sure composites drain properly”! We don’t any person to ever waste unnecessary time or money cleaning or keeping composites clean. Hopefully Corte Clean got rid of any grease & oil or rust from your barbecue too?

Posted 6 years ago

“I have an Trex deck in Pennsylvania that gets green mold, barbecue stains, rust, all of the above. I had been purchasing and using Corte Clean from Sequoia Supply for years. Last year, they no longer carried it. They sold me a product called Resist Mist, claiming it was better and easier to use. Don’t bother wasting your time. I just purchased Corte Clean directly from the company.”

Helpful Report

Posted 6 years ago

“This is a great product! If anyone has a negative review they must not be following the directions properly. If you do exactly as stated on the package, you will have fantastic results.”

Helpful Report

Posted 6 years ago

Thanks for the REVIEW! Not following Corte Clean directions is the #1 reason it fails, especially when it comes to KEEPING COMPOSITES CLEAN! We want every customer to not only get their composites thoroughly clean, but keep them clean, while generally spending up to 2/3rds less time or labor & up to 1/2 the money. Corte Clean has been proven to do this for over a decade. Proactively using Corte Clean "at least twice yearly, spring & fall, or when stains appear" at the "routine cleaning" Corte Clean strength of "up to 2.5 scoops" per "1 gallon of water" & following the "When Corte Clean no longer 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.", which label direction most skip, is the KEY! Applying Corte Clean before composites receive moisture from rain or snow, to remove microscopic mold spores, before they hatch, germinate & colonize deeply into composites, or other stains deeply saturate & allow the natural moisture thoroughly rinse is proven to cost less time & money keeping composites clean, especially if composite owners start proactively applying more often. EXAMPLE: Fall, Winter, Spring & Summer. Then the trick becomes "how little Corte Clean can one proactively use per gallon of water" or the "up to" part of the label direction. How little Corte Clean can one proactively use to keep composites clean? Generally, when proactively properly done, composites stay clean for longer & longer periods of time for less & less money or Corte Clean. This has the added benefit of being more & more environmentally responsible because less & less Corte Clean is being used. Fine tuning how proactively Corte Clean should be applied & how little Corte Clean can be used, depends on the type of composite, what it is made from & the environment it is located. As a general rule, those composites located in humid climates or that receive routine moisture, such as just about everywhere east of the Rockies should have Corte Clean proactively applied, more often, than those composites that don’t see much moisture, except for a few months per year, such as most areas in the Southwest.

Posted 6 years ago

“I have a light colored deck composite deck and it gets dirty fairly quickly. I use Corte Clean twice a year and it keeps my deck looking new. I really like this product and would recommend it to anyone who owns a composite deck.”

Helpful Report

Posted 6 years ago

“I have an 8 to 10 year old Trex deck that gets green with mold in NY! I found out about Corte Clean from the Trex Company and have been using it for years to keep our two toned decking clean. I used to purchase it from Lowe's. They no longer carry it, so I have been purchasing it directly. My only complaint is that the Trex has not heald its origional color.”

Helpful Report

Posted 6 years ago

“It got sap stains out that other cleaners could not”

Helpful Report

Posted 6 years ago

“Awesome stuff! Gets rid of mildew, dirt & grime from our composite decking!”

Helpful Report

Posted 6 years ago

“I had my Trex decking and railing installed in 2002 here in northern Wisconsin which is 16 X 38 feet. I didn’t clean it for years. The railing and decking started getting black mold spots and then turning green, especially on the outer edges! You could really see the problem when the Trex was wet. 5 years ago, I purchased Corte Clean and used it. The deck looks like new and has remained looking like new. I proactively use it especially in the fall, before winter and spring and it doesn’t take near the time it initially took to get the deck clean to keep it clean. The deck stays clean and I am using much less Corte Clean to keep the deck clean. This product does a wonderful job.”

Helpful Report

Posted 6 years ago

“I'm in VA with a large Trex deck (approx 1200 sq ft) that is 8+ years old. Early on I cleaned the deck several times with Corde Clean and everything was fine. Then I got lazy and several years were skipped and soon it was at least 5 yrs since it was cleaned. There were quite a few large dark stains, mold, etc because of the Virginia weather and Dogwood trees that overhang the deck. This year I got some help and a fresh supply of CC and the mixed it strong. With some scrubbing, but only one application - the deck was restored to a nearly new condition. I'm back on track to do the twice a year cleaning and keep it looking good with little effort.”

Helpful Report

Posted 6 years ago

“We installed our TimberTech deck in 2008. It started getting leopard spots this past year, as we had an unusual amount of rain this past spring. Some areas were turning solid black with mold! We tried ammonia and hot water, Tide and Windex glass and patio with no success. We then tried Corte Clean. It was turning green when we applied it and the leopard spots just disappeared. I even recommended it to our friends that have the same decking, installed the same time, with the same problem. This product works really well here in Minnesota! I will be using it later this fall and again to keep my deck clean.”

Helpful Report

Posted 6 years ago

“Had only cleaned deck once in 15 years so it was pretty bad. It cleaned up pretty good with corte clean with one cleaning but I still thought it could have been cleaner so I did the deck on the flooring again because the rails looked really good, It came out very nice. When my ex-wife makes a comment on how nice the deck looks that is a real complement.”

Helpful Report

Posted 6 years ago

LOL! CLASSIC. Perhaps Corte Clean could have saved a marriage?

Posted 6 years ago

“Love this cleaner!! Don’t use anything else. Support a small business”

Helpful Report

Posted 6 years ago

If only every composite deck owner chose our small proven 1 product business, which has existed for over a decade, for cleaning all common stains from composites, rather than the multinational globalist chemical conglomerates, pushing scientifically un-proven, corrosive to structural metal sodium hypochlorite-based biocide products, such as chlorine bleach, for remediating molds, against OSHA recommendations, while unscrupulous manufacturers and retailers propel what is commonly known as the chlorine bleach scam, to the uneducated and/or naive owner, to prey on their misinformed beliefs, in the pursuit of guaranteed repeat high margin profits, while ignoring the safety concerns of corrosive cleaning chemicals, by structural metal decking hardware manufacturers, and choosing to recommend multiple expensive laborious, generally non-compatible cleaning chemicals, to clean specific stains, which are generally at the opposite ends of the pH scale, to routinely clean porous materials and likely will release toxic gas, without any regard to the risks of using these chemicals, one after the other, while ignoring these products label directions warnings and disclosures.

Posted 6 years ago

“Clean an old,never cleaned Trex deck when done it looked brand new, fantastic product. We do it again in the spring. Great product and fantastic instructions, thank you.”

Helpful Report

Posted 6 years ago

Once the cleaning issues have been initially Corte Cleaned from Trex decking, it is best to proactively Corte Clean “at least twice yearly, spring & fall, or when stains appear” at the “routine cleaning” reduced Corte Clean strength, using up to 1/2 the Corte Clean, should Trex owners wish to generally spend up to 1/2 the money and generally 2/3rds less time keeping Trex decking clean. The first year or two, it is best to proactively apply Corte Clean more often. Example: Fall, Winter, Spring, Summer. This ensures Trex remains thoroughly clean and will stay clean for the maximum period of time, of all common stains, not just those caused by molds.

Posted 6 years ago

“I've been using Corte Clean for five years and very pleased with it. With the Trex and Georgia's weather, the mold stains get very bad. I've used a lot of the other composite deck cleaners with bad results. At best they appeared to clean in the beginning but the stains return in a short period of time. I've found following your instructions produced the best results and noticed by doing a regular cleaning program it made the job easier and kept me ahead of the mold. THANKS - R.S. - Jonesboro Ga.”

Helpful Report

Posted 6 years ago

The "other composite deck cleaners" you likely used for cleaning "mold" likely contained "sodium hypochlorite" at the recommendation of the Trex Company? There’s good reason products containing this biocide "appeared to clean in the beginning but the stains return in a short period of time". This is because sodium hypochlorite isn't scientifically proven effective for mold remediation or cleaning & keeping clean the "wood" of which most composite decks are partially made, including Trex. There is good scientific reaso OSHA doesn't recommend chlorine bleach (or any sodium hypochlorite-based biocide product) for cleaning mold. Rapidly returning pesky mold has been frustrating for Trex owners due to this fact. The current ticking time bomb in the composite decking industry is for those companies and composite owners that ignore the "corrosion risks" of "cleaning chemicals", such as those that contain "sodium hypochlorite", as disclosed by structural metal decking hardware manufacturers! If you have used "sodium hypochlorite" in an attempt to clean "mold", it is highly recommended you get your deck professionally inspected to make sure it is safe! Decking hardware generally fails when corroded and under load from people. Nothing could be worse than any person injured or killed due to negligent corrosive cleaning chemical recommendations. https://ir.library.oregonstate.edu/concern/defaults/6969z1338 https://www.osha.gov/dts/shib/shib101003.html

Posted 6 years ago

“I just finished doing my spring cleaning of my Timber-Tech composite deck which is 12 years old. I've been using Corte Clean for years with exceptional results. I must say, however, that the new Corte Clean I ordered this year has improved. I can see that is appears to foam up and does not dry out as fast. I don't think it is just my conditions this year as nothing has changed. I LOVE the way it worked this year!! Thank You!!! Definitely on my "recommended" list!”

Helpful Report

Posted 6 years ago

Thank you for pointing out the improvements we have made to Corte Clean! Like most companies, we are constantly striving to improve our product. No doubt, Corte Clean is better at cleaning, and more importantly keeping composites clean, generally at a much lower cost, with less time and effort, for longer periods of time, than it was a few years ago.

Posted 6 years ago

“Struggled to keep my TimberTech deck clean until someone told me about Corte-Clean. Since I started using the product my deck was brought back and continues to look like new. Have been a satisfied Corte-Clean customer for many years. Quite simply, IT WORKS!”

Helpful Report

Posted 6 years ago

Thank you for the 5 STAR REVIEW! Now that the underlying tannin problem from the wood fibers, that your TimberTech is partially made, and can feed molds, has been Corte Cleaned, and the tannin bleeding problem has been eliminated, the goal is to make sure you are spending the least amount of time & money keeping your composite deck clean, of all common stains, not just those caused by molds. Proactively using Corte Clean, “at least twice yearly, spring & fall, or when stains appear” at the “routine cleaning” strength of “up to 2.5 scoops” per “1 gallon of water”, preferably before the composites receive moisture and mold spores hatch and/or deeply root, or other stains deeply saturate, is the key to generally spending less time and money keeping your composite deck clean. Mix up the Corte Clean, spray it on your “thoroughly dry” composites, “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).” The best way to “Thoroughly rinse composite prior to using.” is to allow the natural moisture from rain or snow to thoroughly rinse. Proactively using Corte Clean, and removing mold spores (seeds) before they hatch and root into composites or other stains are allowed to deeply saturate is the key to generally spending much less time and money keeping composites clean of all common stains. Initially the more proactively composites are Corte Cleaned, (EXAMPLE: Summer, Fall, Winter, Spring) the better, if one chooses for composites to ultimately stay clean for longer periods of time, while generally removing the most stubborn saturated stains. The trick then is becoming, how little Corte Clean can one use, per gallon of water (“up to”), and how frequently or preferable infrequently does it need to be proactively applied to keep composites clean. If you notice mold stains returning, or notice other stains, you are waiting too long to proactively apply! Those that proactively use Corte Clean, as it was designed and intended, once the underlying wood tannin issue and or dirty recycled plastic has been cleaned, generally spend the least amount of time & money keeping composites clean and notice the composites staying clean for longer and longer periods of time, sometimes even for years! This has been proven for over a decade.

Posted 6 years ago

“Cleans easily and restores color.”

Helpful Report

Posted 6 years ago

Unfortunately, Corte Clean generally only temporarily restores the color of some previously “weathered” composites, especially those that have been previously chlorine bleached with as sodium hypochlorite-based product, as these products generally bleach composites beyond what composite manufacturers disclose, as you have likely unfortunately experienced. Generally, the sun will again weather or dull the composites color over time once Corte Cleaned, where sodium hypochlorite has been previously used. Excessive color fade by sodium hypochlorite-based products is the 2nd biggest complaint in the composite decking industry, right after cleaning issues. Why composite manufacturers and retailers have recommended and or sold products containing sodium hypochlorite for mold remediation, that are scientifically unproven for this purpose, can excessively bleach the color of composites and are corrosive to structural metal decking hardware is any persons guess, as corrosion caused by sodium hypochlorite is a potential ticking time bomb in the decking industry! There is a potentially deadly serious reason the largest structural metal decking manufacturers have disclosed the “corrosion risks” of “cleaning chemicals” such as those that contain sodium hypochlorite!

Posted 6 years ago

“I love this cleaner. As we all know when you spend money on a composite deck that want to use a product that cleans well and protects your investment. This is the only cleaner that I use. It does a great job with all stains, sap, and mildew that covers my deck. When I am finished, it looks brand new,even though it is Nine years old!!! Don’t use anything else. This is the best. Also, it’s great to support a small business with such a nice owner.”

Helpful Report

Posted 6 years ago

Yes, you do want to choose a cleaner that “protects your investment”! Unlike scientifically unproven chlorine bleach or other sodium hypochlorite-based deck cleaning products for cleaning mold, Corte Clean is non-corrosive to structural metal decking hardware. There is potentially a deadly serious reason why the two largest decking hardware manufacturers have disclosed the “corrosion risks” of “cleaning chemicals”! We all know what happens when these items are corroded, under load from people, and fail. Nothing could be more expensive, especially if you are the unlucky person(s) injured or worse!

Posted 6 years ago

“My husband and I used the Corte Clean Composite Clearner this weekend on our lake home deck. This product worked. It removed deep stains and brought out the deck's beauty. You must keep the product wet and let it sit for about 20 minutes. I wish I could show all the pictures especially the before and after but I could load only one.”

Corte Clean Composite Deck Cleaner 5 star review on 9th July 2018

Helpful Report

Posted 6 years ago

“Corte Clean did a fantastic job of cleaning our 1,215 square foot Trex composite deck of barbecue mess and green moss under the plants here in Pleasanton California.”

Helpful Report

Posted 6 years ago

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