Top-rated mold testing and remediation specialists.

Get matched with top mold testing and remediation specialists in Southold, NY

Enter your zip and get matched with up to 5 pros

Need a pro for your mold testing and remediation project in Southold, NY?

Select your specific project to find the pro for you.

TRUSTED BY SOUTHOLD, NY HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon16
    Verified mold testing and remediation services reviews

Find Mold testing and remediation specialists in Southold

Global Restoration Services, Inc.

5.00(
20
)
Approved Pro

Global Restoration Services, Inc.

5.00(
20
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Free onsite estimate

With years of experience serving Ronkonkoma and surroundings area, Global Restoration Services, Inc. is your solution for all your mold removal needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Satisfaction guaranteed!

"I can’t express my gratitude enough for what this company did for my mother. Having an electrical fire at her house was scary enough. They were there from the moment we needed them and guided me through the entire process and made me understand each step. CuzWith precise efficiency they started the process of the cleanup that day and finished the projects In two weeks time. They were very professional and had great communication and customer service. I highly recommend this company above all."

Danielle W on August 2024

With years of experience serving Ronkonkoma and surroundings area, Global Restoration Services, Inc. is your solution for all your mold removal needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Satisfaction guaranteed!

"I can’t express my gratitude enough for what this company did for my mother. Having an electrical fire at her house was scary enough. They were there from the moment we needed them and guided me through the entire process and made me understand each step. CuzWith precise efficiency they started the process of the cleanup that day and finished the projects In two weeks time. They were very professional and had great communication and customer service. I highly recommend this company above all."

Danielle W on August 2024


Avatar for Phase 1 Restoration Inc.

Phase 1 Restoration Inc.

4.79(
19
)
Approved Pro

Phase 1 Restoration Inc.

4.79(
19
)
Approved Pro
Customers say: Quick response
38 years of experience
Free onsite estimate

Phase 1 Restoration, Inc. possesses and utilizes the acumen to evaluate our client’s requirements and initiate a course of action necessary to achieve intended targets, incorporating the client’s schedule, budget, operational needs and future plans into consideration.

"Phase 1 did a fantastic job. They arrived on time and worked well to remove the asbestos from our basement."

Peter S on July 2025

Phase 1 Restoration, Inc. possesses and utilizes the acumen to evaluate our client’s requirements and initiate a course of action necessary to achieve intended targets, incorporating the client’s schedule, budget, operational needs and future plans into consideration.

"Phase 1 did a fantastic job. They arrived on time and worked well to remove the asbestos from our basement."

Peter S on July 2025


"Peter and his team were very thorough in assessing and remediating my mold problem. His staff was very knowledgeable, professional and courteous throughout the process. Issue was identified , remediated and contained with modern state of the art equipment."

Greg Deli D on November 2023

We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today.

"Peter and his team were very thorough in assessing and remediating my mold problem. His staff was very knowledgeable, professional and courteous throughout the process. Issue was identified , remediated and contained with modern state of the art equipment."

Greg Deli D on November 2023


Avatar for Long Island Mold Testing, LLC

Long Island Mold Testing, LLC

5.00(
8
)
Approved Pro

Long Island Mold Testing, LLC

5.00(
8
)
Approved Pro
Customers say: Quick response
1 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"It was a pleasure working with them they were punctual and respectful. They help us with all our needs and there pricing was one of the best."

Mark C on October 2024

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"It was a pleasure working with them they were punctual and respectful. They help us with all our needs and there pricing was one of the best."

Mark C on October 2024


Avatar for Mold Test Company NY

Mold Test Company NY

4.31(
73
)
Approved Pro

Mold Test Company NY

4.31(
73
)
Approved Pro
Customers say: Quality work
17 years of experience

At Mold Test Company NY, we take great pride our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Very professional, thorough and easy to work with"

Nicole B on March 2023

At Mold Test Company NY, we take great pride our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Very professional, thorough and easy to work with"

Nicole B on March 2023


Avatar for Healthy Buildings & Homes LLC

Healthy Buildings & Homes LLC

5.00(
6
)
Approved Pro

Healthy Buildings & Homes LLC

5.00(
6
)
Approved Pro
20 years of experience
Free onsite estimate

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We have many years of experience to give you confidence that we are your number one choice for your next home project. You will find us to be competitively priced with close attention to the details. We look forward to building a lasting relationship and guarantee your satisfaction! Call us today.

"I had an excellent experience with this mold testing company. Jeff was extremely knowledgeable and took the time to explain every step of the process. He was prompt, responsive, and thorough making sure all of my concerns were addressed. His professionalism and calm demeanor made this stressful situation so much easier. I highly recommend Jeff and this company to anyone in need of reliable, honest, and high-quality mold testing services."

Arianna T on December 2025

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We have many years of experience to give you confidence that we are your number one choice for your next home project. You will find us to be competitively priced with close attention to the details. We look forward to building a lasting relationship and guarantee your satisfaction! Call us today.

"I had an excellent experience with this mold testing company. Jeff was extremely knowledgeable and took the time to explain every step of the process. He was prompt, responsive, and thorough making sure all of my concerns were addressed. His professionalism and calm demeanor made this stressful situation so much easier. I highly recommend Jeff and this company to anyone in need of reliable, honest, and high-quality mold testing services."

Arianna T on December 2025


"Dominick was great! We hired Dom for a buyer's home inspection. Called back the same day within hours. Polite on the phone and patient. He was very thorough and spent about 2.5 hours inspecting a 2800 sq ft house. He was testing the radiator in the middle of summer. He was up and down the ladder going up to the roof. Very knowledgeable, knows the codes, and produced very detailed inspection report accompanied with pictures. In addition to identifying a potential issue, his report also explains the both the cause and potential solutions. We will certain hang on to the report for future reference to keep up the maintenance. Dom spent an hour on the phone afterwards to answer our questions after reviewing the inspection report, he also anticipated some of our questions therefore was a great resource in estimating the cost to address the issues. Again, very patient and did not rush us off the phone and this is after he was already paid. In fact, we will probably have him come back to the house for inspections on regular basis to ensure continued safety and comfort. Competent and reliable, highly recommended!"

H B on August 2020

Home inspection services. Available 7 days a week. Home inspections performed by building professional with over 20 years experience in the industry. For more information visit us at www.certifiedhomeinspectionsny.com.

"Dominick was great! We hired Dom for a buyer's home inspection. Called back the same day within hours. Polite on the phone and patient. He was very thorough and spent about 2.5 hours inspecting a 2800 sq ft house. He was testing the radiator in the middle of summer. He was up and down the ladder going up to the roof. Very knowledgeable, knows the codes, and produced very detailed inspection report accompanied with pictures. In addition to identifying a potential issue, his report also explains the both the cause and potential solutions. We will certain hang on to the report for future reference to keep up the maintenance. Dom spent an hour on the phone afterwards to answer our questions after reviewing the inspection report, he also anticipated some of our questions therefore was a great resource in estimating the cost to address the issues. Again, very patient and did not rush us off the phone and this is after he was already paid. In fact, we will probably have him come back to the house for inspections on regular basis to ensure continued safety and comfort. Competent and reliable, highly recommended!"

H B on August 2020


Avatar for NY Indoor Air Quality Solutions

NY Indoor Air Quality Solutions

5.00(
95
)

NY Indoor Air Quality Solutions

5.00(
95
)
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Indoor air quality testing and solutions focusing on those who suspect the poor air quality of either in their home or workplace may be responsible for their health issues. We are not just a mold company; we have built a unique service that identifies elevated triggers associated with Asthma, COPD and other chronic pulmonary diseases. -MBA Health Care Administration Dowling College -Bachelor Science Industrial Engineer Buffalo State University -NY State Home Inspector Instructor… course subject “Mold” -Suffolk County Academy of Medicine Faculty Member for Continuing Education -NY State Licensed Home Inspector… License # 16000001670 -Certified Mold Technician… Pro Labs. AIHA Accreditation Lab ID # 163230 -International Restoration Institute (IRI) Mold Remediation Certificate ID# 18573 -Licensed and Insured Home Improvement Contractor… -DEC Licensed Pesticide Applicator… License # C1860946 -EPA Lead Safe Certified Renovator -Consultant to the Mount Sinai School of Medicine

"They came on time. They were professional and courteous. They did the work expeditiously and answered our questions to our satisfaction."

Peter J on May 2023

Indoor air quality testing and solutions focusing on those who suspect the poor air quality of either in their home or workplace may be responsible for their health issues. We are not just a mold company; we have built a unique service that identifies elevated triggers associated with Asthma, COPD and other chronic pulmonary diseases. -MBA Health Care Administration Dowling College -Bachelor Science Industrial Engineer Buffalo State University -NY State Home Inspector Instructor… course subject “Mold” -Suffolk County Academy of Medicine Faculty Member for Continuing Education -NY State Licensed Home Inspector… License # 16000001670 -Certified Mold Technician… Pro Labs. AIHA Accreditation Lab ID # 163230 -International Restoration Institute (IRI) Mold Remediation Certificate ID# 18573 -Licensed and Insured Home Improvement Contractor… -DEC Licensed Pesticide Applicator… License # C1860946 -EPA Lead Safe Certified Renovator -Consultant to the Mount Sinai School of Medicine

"They came on time. They were professional and courteous. They did the work expeditiously and answered our questions to our satisfaction."

Peter J on May 2023


Avatar for C&G Restorations

C&G Restorations

4.96(
116
)

C&G Restorations

4.96(
116
)
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Specializes in Mold & Water Damage. Professional, License & safe mold remediation. Free Estimates. Drying/dehumidification services. A 30 min response! With professionally trained employees. Free evaluation estimates with the concerns within your home or business. We carefully explain and educate each client so they fully understand the problem, the remediation, and the long term solution. All work is guaranteed. Self-paying home owner discounts are available; credit cards are accepted. Email at: [email protected] for additional literature, information, questions, or appointments. The purpose of our visit is to provide you with a "free/no charge" visit to evaluate your mold concerns and provide you with additional information/literature/education so you can make additional decisions on how to proceed. It is necessary to view and inspect the project before giving advice or pricing. We examine the source of the moisture or high humidity to prevent the re-occurrence of a mold problem; our appointment is approximately 15-20 minutes, pending questions. Sincerely, Guy Reed C&G RESTORATIONS

"Guy reed and his team were Awesome. Job was very professional work was excellent. They were very responsive to all question and reccomended professional reccomended Contractors for reconstructon and tips to prevent future problems. Price was also more reasonable than other quotes. Would highly reccomend."

Louis L on January 2022

Specializes in Mold & Water Damage. Professional, License & safe mold remediation. Free Estimates. Drying/dehumidification services. A 30 min response! With professionally trained employees. Free evaluation estimates with the concerns within your home or business. We carefully explain and educate each client so they fully understand the problem, the remediation, and the long term solution. All work is guaranteed. Self-paying home owner discounts are available; credit cards are accepted. Email at: [email protected] for additional literature, information, questions, or appointments. The purpose of our visit is to provide you with a "free/no charge" visit to evaluate your mold concerns and provide you with additional information/literature/education so you can make additional decisions on how to proceed. It is necessary to view and inspect the project before giving advice or pricing. We examine the source of the moisture or high humidity to prevent the re-occurrence of a mold problem; our appointment is approximately 15-20 minutes, pending questions. Sincerely, Guy Reed C&G RESTORATIONS

"Guy reed and his team were Awesome. Job was very professional work was excellent. They were very responsive to all question and reccomended professional reccomended Contractors for reconstructon and tips to prevent future problems. Price was also more reasonable than other quotes. Would highly reccomend."

Louis L on January 2022


Avatar for ACM Basement Waterproofing, Inc.

ACM Basement Waterproofing, Inc.

4.97(
73
)

ACM Basement Waterproofing, Inc.

4.97(
73
)
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

ACM Basement Waterproofing is a family-owned and operated waterproofing company that has served as Long Island's certified waterproofing specialists for over 25 years. We are experts in basement waterproofing, French drain systems, pressure relief systems, sump pumps, egress windows, mold, and more. We provide lasting solutions for water and mold problems in basements and crawlspaces. Our team is reliable, reputable and friendly, and contains several waterproofing specialists certified by the Basement Health Association.

"We purchased a beach house that had an open French drain and 2 sump pumps in the basement. We spoke with several contractors, none of whom diagnosed why the pumps were running continuously and why the sisterns were always bubbling up water onto the front lawn. ACM diagnosed the problem, explained to us what was wrong. They were the only people we spoke to who really understood what the issue was. They recommended several upgrades, installed the new basement floor and sump pumps. This fixed the issue. They completed the work on time and on budget. HIGHLY RECOMMNEDED "

BandW R on December 2025

ACM Basement Waterproofing is a family-owned and operated waterproofing company that has served as Long Island's certified waterproofing specialists for over 25 years. We are experts in basement waterproofing, French drain systems, pressure relief systems, sump pumps, egress windows, mold, and more. We provide lasting solutions for water and mold problems in basements and crawlspaces. Our team is reliable, reputable and friendly, and contains several waterproofing specialists certified by the Basement Health Association.

"We purchased a beach house that had an open French drain and 2 sump pumps in the basement. We spoke with several contractors, none of whom diagnosed why the pumps were running continuously and why the sisterns were always bubbling up water onto the front lawn. ACM diagnosed the problem, explained to us what was wrong. They were the only people we spoke to who really understood what the issue was. They recommended several upgrades, installed the new basement floor and sump pumps. This fixed the issue. They completed the work on time and on budget. HIGHLY RECOMMNEDED "

BandW R on December 2025

...
Showing 1-10 of 539
Mold Testing and Remediation questions, answered by experts

It is not advisable to stay in a house with black mold. Exposure to black mold, or any mold, can lead to health problems, especially for vulnerable individuals such as children, the elderly, or those with weakened immune systems. Black mold produces mycotoxins, which can cause respiratory issues, skin irritation, fatigue, and headaches. If black mold is detected, it is crucial to evacuate the premises, seek professional help for remediation, and only return once the area is thoroughly cleaned and confirmed mold-free by experts.

If you see black stuff under your vinyl flooring, it’s probably mold. There is a chance it could just be dirt, dried-out adhesive, or slight water damage, but some of those are causes for mold growth, so you should remove it immediately anyway. In some older homes, it could be black mastic asbestos. If you think it could be this–you guessed it–call a pro.

Many peel-and-stick wallpapers aren’t moisture-resistant, so if you install them in high-humidity rooms, mold can grow behind the wallpaper. It’s best to reserve peel-and-stick wallpaper for bedrooms, living rooms, and other rooms with lower humidity levels. Not only does this minimize the risk of mold growth, but it also keeps the wallpaper from bubbling or peeling.

The EPA broadly defines hazardous waste as any waste that could pose a danger to humans or the environment. More specifically, it includes any material that could combust or explode under normal temperatures and pressure, as well as materials that are toxic or corrosive. Some common household hazardous waste products include aerosol cans, paint cans, old tires, medical supplies, unused medications, fire extinguishers, cleaning solutions, and lawn care products.

Neglecting mold growth on wood can result in various issues that deteriorate its appearance and jeopardize its structural stability. The mold's ability to multiply and expand can disintegrate the fibers of the wood, weakening it further. In addition, the allergenic spores and mycotoxins released by mold can pose health hazards through inhalation or contact. Ignoring the mold's presence allows it to thrive, increasing the likelihood of spreading to other surfaces and requiring extensive and expensive measures to control in the future. Addressing mold on wood promptly is crucial to preserving its condition and safeguarding the health of those around it.

The Southold, NY homeowners’ guide to mold testing and remediation services

From average costs to expert advice, get all the answers you need to get your job done.

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"