Top-rated radon detection and reduction specialists.

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There are 7 highly-rated local radon detection and reduction specialists.

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Verified Reviews for Radon Detection And Reduction pros in Port Washington, NY

*The Angi rating for Radon Detection And Reduction companies in Port Washington, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

*The HomeAdvisor rating for Radon Detection And Reduction companies in Port Washington, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

Last update on December 04, 2025

Find Radon detection and reduction specialists in Port Washington

Avatar for Aris Mold Removal

Aris Mold Removal

4.94(
18
)
•Approved Pro

Aris Mold Removal

4.94(
18
)
•Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
27 years of experience

established since 1998 We specialize in mold inspection mold remediation and water damage restoration. We always make sure our customers are 100% satisfied and we make sure we leave your house mold free. When we take air samples we always make sure you get next day and reliable results.

"Aris Mold Removal had Mold Inspection and Mold Report within a day. They were very professional, highly recommended."

Bianca C on August 2025

established since 1998 We specialize in mold inspection mold remediation and water damage restoration. We always make sure our customers are 100% satisfied and we make sure we leave your house mold free. When we take air samples we always make sure you get next day and reliable results.

"Aris Mold Removal had Mold Inspection and Mold Report within a day. They were very professional, highly recommended."

Bianca C on August 2025

Avatar for G-Tech Restoration, Inc.

G-Tech Restoration, Inc.

5.00(
14
)
•Approved Pro

G-Tech Restoration, Inc.

5.00(
14
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
146 local quotes requested

G-Tech Restoration specializes in Fire-Water-Smoke-Mold disaster recovery. We will treat your home as if it were our own and guarantee all services provided. If you are filing an insurance claim for your fire-water-smoke-mold damage, let our experts help you facilitate the entire process removing the stress and discomfort when venturing into the unknown. We offer financing and provide senior citizen/military veteran discounts. Call today to setup your free inspection!

"I can’t say enough good things about G Tech Restoration. After our home was severely damaged by a flood, we were feeling overwhelmed and unsure of what to do next. From the moment their team arrived, they were professional, compassionate, and incredibly efficient. They assessed the damage quickly and explained every step of the cleanup process in a way that made us feel informed and reassured. The team worked tirelessly to remove the water, dry out our home, and prevent any potential mold growth. Their attention to detail and commitment to quality work were evident throughout the entire process. What really stood out was their excellent communication. We were always kept in the loop, and any questions we had were answered promptly. Don, the owner went above and beyond to ensure that our home was restored to its original condition, if not better. I highly recommend Don and his team at GC Tech Restoration for anyone in need of restoration services. They turned a very stressful situation into a manageable one, and we are incredibly grateful for their help. Thank you, G-Tech Restoration for your outstanding service!"

Alison B on June 2024

G-Tech Restoration specializes in Fire-Water-Smoke-Mold disaster recovery. We will treat your home as if it were our own and guarantee all services provided. If you are filing an insurance claim for your fire-water-smoke-mold damage, let our experts help you facilitate the entire process removing the stress and discomfort when venturing into the unknown. We offer financing and provide senior citizen/military veteran discounts. Call today to setup your free inspection!

"I can’t say enough good things about G Tech Restoration. After our home was severely damaged by a flood, we were feeling overwhelmed and unsure of what to do next. From the moment their team arrived, they were professional, compassionate, and incredibly efficient. They assessed the damage quickly and explained every step of the cleanup process in a way that made us feel informed and reassured. The team worked tirelessly to remove the water, dry out our home, and prevent any potential mold growth. Their attention to detail and commitment to quality work were evident throughout the entire process. What really stood out was their excellent communication. We were always kept in the loop, and any questions we had were answered promptly. Don, the owner went above and beyond to ensure that our home was restored to its original condition, if not better. I highly recommend Don and his team at GC Tech Restoration for anyone in need of restoration services. They turned a very stressful situation into a manageable one, and we are incredibly grateful for their help. Thank you, G-Tech Restoration for your outstanding service!"

Alison B on June 2024

Avatar for Rainbow Restoration of North Brooklyn

Rainbow Restoration of North Brooklyn

5.00(
18
)
•Approved Pro

Rainbow Restoration of North Brooklyn

5.00(
18
)
•Approved Pro
Customers say: Super punctual
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
29 local quotes requested

With over 50 years of experience in the restoration industry, we are the experts you need to take care of your home. We handle water damage and mold cleaning and remediation. Our experienced team will make sure to leave the disaster behind and ease unconfort. We will treat your home as we would treat our own. Give Rainbow Restoration of North Brooklyn, a call today, we look forward to working with you! Additional license: Mold Remediation Contractor #MR01316

"They were reliable and responsive and went above and beyond to help identify the source of the problem. I would highly recommend them."

Evelyn B on May 2024

With over 50 years of experience in the restoration industry, we are the experts you need to take care of your home. We handle water damage and mold cleaning and remediation. Our experienced team will make sure to leave the disaster behind and ease unconfort. We will treat your home as we would treat our own. Give Rainbow Restoration of North Brooklyn, a call today, we look forward to working with you! Additional license: Mold Remediation Contractor #MR01316

"They were reliable and responsive and went above and beyond to help identify the source of the problem. I would highly recommend them."

Evelyn B on May 2024

Oakhill Home Inspections

5.00(
1
)
•Approved Pro

Oakhill Home Inspections

5.00(
1
)
•Approved Pro
58 local quotes requested
Free onsite estimate

I pride my company on reliability, great communication, integrity, and quality work. I am an expert in home inspections and I will do my absolute best to keep you as educated and informed on your particular inspection project. I look forward to earning your business! Book with me online or feel free to give me a call today! My focus is protecting your home investment. Thank You, Charles Rauch Oakhill Home Inspections

"good job"

Mike R on November 2025

I pride my company on reliability, great communication, integrity, and quality work. I am an expert in home inspections and I will do my absolute best to keep you as educated and informed on your particular inspection project. I look forward to earning your business! Book with me online or feel free to give me a call today! My focus is protecting your home investment. Thank You, Charles Rauch Oakhill Home Inspections

"good job"

Mike R on November 2025

Procyon

4.33(
6
)
•Approved Pro

Procyon

4.33(
6
)
•Approved Pro
Customers say: Quick response
309 local quotes requested
11 years of experience

We can offer Mold Testing and Remediation. Water Damage. Smoke Damage. Fire Damage. Our owner is on site for all jobs! Call today we work flawlessly with your insurance company.

"I had a poor experience. I hired this company to do a mold assessment in my apartment. I dealt with the owner. First, he requested cash or check payment only. He made an appointment and did not show up or contact me. I had to call him. In one of the rooms, the pipes above and whatever else the cause of the leak was, had been leaking repeatedly for 40 years, and the plaster constantly replaced. I was worried about mold ABOVE the ceiling on the beams and studs and not just the visible mold on the ceiling plaster and I worried it could be black mold. He did not seem to listen to what I told him and he did not use a water meter to check for saturation or a borescope or any other tools except taking a surface sample and air sample (the borescope and water meter I did not know about until after I had paid him for this inadequate job). He did not mention anything I said in the report. He was also rude and unkind and never provided me with a receipt. "

Ellen L on December 2025

We can offer Mold Testing and Remediation. Water Damage. Smoke Damage. Fire Damage. Our owner is on site for all jobs! Call today we work flawlessly with your insurance company.

"I had a poor experience. I hired this company to do a mold assessment in my apartment. I dealt with the owner. First, he requested cash or check payment only. He made an appointment and did not show up or contact me. I had to call him. In one of the rooms, the pipes above and whatever else the cause of the leak was, had been leaking repeatedly for 40 years, and the plaster constantly replaced. I was worried about mold ABOVE the ceiling on the beams and studs and not just the visible mold on the ceiling plaster and I worried it could be black mold. He did not seem to listen to what I told him and he did not use a water meter to check for saturation or a borescope or any other tools except taking a surface sample and air sample (the borescope and water meter I did not know about until after I had paid him for this inadequate job). He did not mention anything I said in the report. He was also rude and unkind and never provided me with a receipt. "

Ellen L on December 2025

Avatar for ALL PRO CLEANING & RESTORATION SERVICES

ALL PRO CLEANING & RESTORATION SERVICES

4.76(
34
)
•Approved Pro

ALL PRO CLEANING & RESTORATION SERVICES

4.76(
34
)
•Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
100 local quotes requested

When disaster strikes, All Pro is waiting 24 hours a day, 7 days a week, 365 days a year. Regardless of the magnitude of damage, All Pro’s experienced technicians are capable of assisting you and your client in managing the disaster crisis. All Pro works closely with you and your client at every phase: Consultation—A technical specialist examines and evaluates the disaster. Evaluation—The disaster site is secured, and service methodologies and timelines are developed and submitted to you and your client. Education—Technical specialists review coverage and educate the insured on the restoration process, while easing their minds about the disaster. Quality Checks and Service—Work is processed, secured, and stored at All Pro’s facility. A checklist of all work is reviewed and inspected prior to final quality sign-off from the managing principal. Follow-up—A technical specialist calls you and your clients to ensure that work has been satisfactorily completed.

"Very good and excellent service."

Joseph C on May 2022

When disaster strikes, All Pro is waiting 24 hours a day, 7 days a week, 365 days a year. Regardless of the magnitude of damage, All Pro’s experienced technicians are capable of assisting you and your client in managing the disaster crisis. All Pro works closely with you and your client at every phase: Consultation—A technical specialist examines and evaluates the disaster. Evaluation—The disaster site is secured, and service methodologies and timelines are developed and submitted to you and your client. Education—Technical specialists review coverage and educate the insured on the restoration process, while easing their minds about the disaster. Quality Checks and Service—Work is processed, secured, and stored at All Pro’s facility. A checklist of all work is reviewed and inspected prior to final quality sign-off from the managing principal. Follow-up—A technical specialist calls you and your clients to ensure that work has been satisfactorily completed.

"Very good and excellent service."

Joseph C on May 2022

Avatar for WPS Contracting Group LLC

WPS Contracting Group LLC

New on AngiNew on Angi
•Approved Pro

WPS Contracting Group LLC

New on AngiNew on Angi
•Approved Pro
28 local quotes requested
4 years of experience

WPS CONTRACTING GROUP LLC IS a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of testing and abatement services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

WPS CONTRACTING GROUP LLC IS a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of testing and abatement services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

Avatar for Anthi Environmental Corp.

Anthi Environmental Corp.

5.00(
9
)
•Approved Pro

Anthi Environmental Corp.

5.00(
9
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
93 local quotes requested

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 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 D on November 2023

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
159 local quotes requested
38 years of experience

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

Avatar for Elite Home Inspection Group LLC

Elite Home Inspection Group LLC

No reviews yet

Elite Home Inspection Group LLC

No reviews yet
Free onsite estimate

I am a Licensed and insured home inspector that is reliable and thorough. I take my time with inspections and always put my clients first. You'll receive a detailed home inspection report along with some tips and tricks for maintaining a safe home.

I am a Licensed and insured home inspector that is reliable and thorough. I take my time with inspections and always put my clients first. You'll receive a detailed home inspection report along with some tips and tricks for maintaining a safe home.

...
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Radon Detection and Reduction questions, answered by experts

You can buy DIY radon test kits from a home improvement store and conduct radon testing, but these tests are often inaccurate. No matter the result, you should supplement DIY testing with professional radon detection and analysis. DIYers only have access to passive radon tests, which aren’t as reliable as active tests that professionals use. Plus, it’s very easy for DIYers to make mistakes during testing, leading to inaccurate results. If you’re moving into a new home, have concerns about radon, or are due for an updated test, hire a professional. 

Since radon typically comes out of the soil, it is most commonly found in the lower levels of a home. In houses with basements, that's a common location for radon. Homes built directly on the ground may have radon on the ground floors. Radon can be found on the upper floors of the home, but often in lower concentrations than in lower levels.

The short answer is no, air purifiers do not help with radon. While they certainly can improve the air quality of your home, they only clean pollutants from the air. Radon is radioactive, and it isn’t affected by the same filtration systems that handle other airborne particles, like dust and mold. The only thing that works is a radon mitigation system.

Costs for radon detection services typically range from $150 to $250, depending on the testing method and whether a professional assessment is required.

What is radon? It’s a radioactive gas that naturally occurs in the ground, forming as uranium and thorium decay. It has no color or odor, so you don’t know if it’s seeping into your building’s foundation. Regular exposure to radon gas increases your chances of suffering from lung cancer. Radon testing measures the air inside your house for the presence of radon gas. If detected, the test will measure the severity of radon levels in your home’s air.

The Port Washington, NY homeowners’ guide to radon detection and reduction services

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

See all articles