911 Flood of Long Island
Flag Enterprises Services Long Island And The 5 Boroughs (800) 794-3524
911 Flood of Long Island

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NY State Licensed Mold Remediation Company On Long Island

New York State Mold Remediation Contractor / License #00152

Whether you live on Long Island or in Manhattan you can be confident that we have your mold removal needs covered. As a trusted industry leader and licensed, certified mold remediation contractor you can put the well-being of your property in our hands. Our fast response and on-demand help make it easy for you to get the services you need at your convenience.

We ensure that the mold removal process is thorough and our method is proven effective. We use professional grade industrial equipment and offer free estimates to prospective customers. Mold can be a danger to you, your family, and your pets if it goes unaddressed. Many times it can cause health problems like asthma, headaches, bloody noses, and in some cases severe problems due to mold toxicity.

While mold removal and remediation may seem like a good DIY project, you should always leave this potentially dangerous process in the hands of licensed professionals. Even in small instances you run the risk of spreading mold spores when you're working without negative air and proper containment.

The mold remediation process doesn't have to be a difficult one, and we're happy to work with you every step of the way. The first step is to come to your property and do a thorough mold inspection, then we will go on to test your air quality (if needed) to identify the presence and type of mold. Finally, we will perform our mold remediation and abatement. Typically this process requires us to fix the source of the problem, usually leaking water or extra moisture. Then we will remove the mold and take care of any contaminants and spores it may have left behind.


Our Mold Remediation Process

Assessment We will send a certified mold inspector to visit your property and evaluate the extent of mold damage. We will document an actionable mold remediation strategy and provide you a cost and time estimate to safely address the mold problem.

Team Dispatch Upon accepting our proposal, we will very quickly dispatch our mold remediation team. They will immediately setup up containment to prevent cross contamination.

Pre-clean We will pre-clean the premises in preparation for demolition of the mold infested site. This includes safe removal of non-salvageable items. We set up air scrubbers (negative air) to blow fine particles and suspend them in the air, so they can be trapped and removed by a HEPA filter.

Demolition We will conduct the demolition of the contamination and remove the debris. All waste is double bagged and moved to a dumpster which is emptied daily. Our workers will wear all of the safety protection equipment to prevent injuries during the demolition.

Scrape & Sand Clean The exposed structure is then scraped, wired brushed, sanded or dry ice blasted to remove visible mold growth. This process removes the mold and helps to prevent future mold issues.

Item Cleaning Salvageable items are then pre-cleaned and bio-washed and then vacuumed again. Insurance companies cover the cost of cleaning items such as clothing, bedding and curtains. We will help you separate salvageable items from those which must be disposed.


Mold Remediation Service

Top reasons to choose 911 Flood of Long Island

  • We are the local leader in mold removal & remediation.
  • We've completed hundreds of mold remediation projects on Long Island.
  • We maintain an A+ BBB Rating.
  • We send only Certified mold remediation contractors and inspectors.
  • We give you a thorough on-site mold inspection and free estimate.
  • We are Licensed and Insured. Refer to our credentials page

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Featured Project

Watch our project slide progression of a mold remediation project on Long Island.


Our Service Advantages

24/7 Emergency Service

Our technicians have the training and expertise to handle your restoration and cleaning needs.

One Hour Response

A fast response is critical. We arrive at your home or place of business within 60 minutes.

Certified Professionals

Flag's team is committed and dedicated to providing and promoting the best practices in the restoration and cleaning industry. With this in mind, we are focused on continued education and have tailored our management to give our clients the best possible service.

Insurance Claim Processor

If the loss is covered by your homeowners insurance policy Flag will bill your insurance company directly and wait for payment from them.

Exceptional Craftsmanship

Our skill and knowledge is a result of many years of education and experience and it is because of that we are able to provide the service you need at the time you need it.

High-tech Equipment

We have all of the structural drying equipment and hands on experience to handle any damage to your property, residential or commercial.


What People Are Saying About Us

Real Customer Reviews about Our Mold Remediation Service

Wanda W. On 1/18/16

Remediation Work by Flag Enterprises
Flag Enterprises are total professionals. They thoroughly inspected the area, expertly advised on what type of remediation was necessary, removed all damaged areas and cleaned the entire site. They were always on time, always in contact with me and fully informed me on all their work. Tom and his crew did a remarkable job, professionally and quickly. Couldn't ask for a better experience with them. Would easily recommend them to others.

Sharese W. On 9/29/15

High quality service.....very trustworthy!
We recently had a severe mold condition in our basement. I reached out to flag enterprise after speaking to different companies. Flag was professional and honest. From the beginning to the end they reassured me that everything would be taken care of. They displayed such a high quality of service and talked me through the entire process. The job was neatly and in a timely matter. I would highly recommend them to anyone.

Amy E. on 5/1/2015

Flag Enterprises helped me after my air conditioner condenser flooded and made a 6' x 6' hole in my ceiling on Memorial Day weekend. I was distraught and worried about mold, reconstruction, and expense but they were fantastic! They were professional, efficient, did meticulous work, cleaned up and left things spotless and made sure that everything was bone dry with no mold. Even better, they dealt directly with my insurance company so I didn't have to worry about anything. They were completely accessible and responsive even over the holiday weekend and I was very grateful for their kindness and willingness to help. I highly recommend Flag Enterprises.

Frank G. on 4/1/2015

We had Flag do a mold cleaning job for the attic. They did a good job. More importantly, their price is fair.

Dawn F. on 4/17/2015

Extremely through job in removing the mold! Many vacuum machines running continuously and the house has never had it back again. I would recommend this if you have flooding in your house!

NicciZ Z. on 3/24/2015

We had an overwhelming amount of water and mold due to roof leaks and broken pipes. Gary and his guys walked us threw the process necessary to dry the house out and rid of the mold. Never felt as if I was being talked down to or being had, which as a woman still happens more often than not. I highly recommend and would use again. The house was good as new, no better when all the work they did was finished. Thank you Flagg Enterprise.

Indira M. on 4/7/2015

Post Sandy I did air quality testing and found that I had mold. I did research for days and had multiple consults and found out that many companies had no clue on how to treat mold. Flag Enterprise was recommended by a friend and they were great. They also guaranteed their work and post remediation I retested the air and the quality was close to perfect.I paid 50% upfront and the other 50% after the air quality test. This is the first time that I have taken the time to review any company/product but I feel very strongly about this company.

Ashley B. on 3/16/2015

We had a leak in our basement which resulted in mold everywhere! I am not from the area and Googled someone flag came up and I called them. Absolutely no disappointment.. they cleaned the area removed the mold and I haven't had a problem since. And if I do, they'll be the first I call and recommend to everyone.

Sandi L. on 3/29/2015

They did a great job. They came quickly and worked carefully. They did everything they could to ensure that the water damage was handled properly so that mold would not grow. They were friendly and knowledgeable. I would absolutely recommend them again.

Virginia L. on 2/13/2015

When our boiler burst a pipe during a blizzard and flooded the basement with hot steamy water for 5 days in Feb. 2013, we were referred by our insurance company to Flag Enterprises for clean up and restoration. We had damage not only to the basement, but also to the first floor of the home due to the steam rising from the basement. A team arrived the next day with all the equipment needed to clean out and sanitize the basement for mold/mildew and fans to dry out the basement and the first floor. Once that was accomplished, we had different teams that came to restore the dining room wall paper, paint, and refinish the hard wood floors. All work was done in a timely manner. The personnel were very polite, conscientious and professional making sure that all repairs were made to our satisfaction. They arrived promptly as scheduled. We were very impressed with Flag Enterprises and highly recommend them.


You May Qualify for Assistance

Mold Remediation damage claims are often rejected by insurance companies if not correctly documented.

Step #1


We review your assistance application and assess the smoke damage at your property to see if you qualify for claims assistance.

Do I Qualify?

Step #2

Claims Processing

We document your claim and prepare all of the insurance paperwork and directly work with your insurance provider to process it fast.

Check Claim Status

Step #3

Claims Payout

Once your claim has been verified and approved by your insurance company, you'll receive reimbursement for the approved claimed amount.

View Claim Amount


We're In Your Neighborhood

When it comes to mold remediation, we're right around the corner. We're on call to service homes and businesses owners in these areas:

Long Island
Nassau and Suffolk Counties

New York City
Queens, Bronx, Brooklyn & Manhattan.

If your property is located outside of the service map, and you believe it is in our best interest to service your project, please call 1-800-981-0265.


Trained and Certified in Mold Remediation

Keeping up with industry advancements helps us deliver the best possible service.

911 Flood Of Long Island Menu

Mold Removal | Covid 19 Coronavirus Cleanup and Removal | Sewage Cleanup | Flood Cleanup | Puff Back Cleanup | Smoke Damage Cleanup | Asbestos Removal | Lead Abatement | Fire Damage Cleanup | Credentials

Terms & Conditions

† The 50% Off Inspection Discount will be applied against the inspection fee. 911 Flood of Long Island commits time and resources to expedite your inspection. Your on-site inspection is thorough, which helps us produce an accurate estimate. All inspection fee payments will be deducted from your work order invoice, should you agree to move forward with our services.

‡ The 10% Restoration Discount code will be sent to the email address that's provided upon estimate request. Code must be presented before or during your inspection. Codes will not be accepted after the inspection and will be deemed invalid. Discount code cannot be combined with other offers.