Top-rated mold testing and remediation specialists.

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Mold testing and remediation specialists in Hopkinton

Avatar for Affordable Mold Removal
Affordable Mold Removal
1248 Washington St
4.88(
99
)
Approved Pro
Affordable Mold Removal
1248 Washington St
4.88(
99
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
25 years of experience

Certified Mold Remediation for over ten years. We can handle the big jobs down to the small jobs. We offer free inspections and estimates. Locally owned and owner is on all jobs to answer any questions you may have. The service you get with us cannot be matched. Additional contact - Dina Oliver

"Did mold remediation in 2020 before house was purchased. Mold found in attic. Resolved it with a 4 year warranty expiring 3-23-24. In January 2024, found mold in same spot. They inspected and sent an estimate to remove. Asked about the warranty still in place. Never responded. Did a good job of remediation work. Doesn’t support their warranty."

Deborah H on February 2024

Certified Mold Remediation for over ten years. We can handle the big jobs down to the small jobs. We offer free inspections and estimates. Locally owned and owner is on all jobs to answer any questions you may have. The service you get with us cannot be matched. Additional contact - Dina Oliver

"Did mold remediation in 2020 before house was purchased. Mold found in attic. Resolved it with a 4 year warranty expiring 3-23-24. In January 2024, found mold in same spot. They inspected and sent an estimate to remove. Asked about the warranty still in place. Never responded. Did a good job of remediation work. Doesn’t support their warranty."

Deborah H on February 2024


Avatar for My Pure Environment- New England
My Pure Environment- New England
43 Nesmith ST
5.00(
30
)
Approved Pro
My Pure Environment- New England
43 Nesmith ST
5.00(
30
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
126 local quotes requested

My Pure Environment New England provides mold removal from homes and businesses throughout Massachusetts. We use a patented dry fog technology that allows us to wipe out the toxic mold, like black mold, from virtually any building. Our revolutionary demolition-free mold remediation method means we can break down microbes on a molecular level, and get rid of the problem without removing walls or ceilings. And because our mold treatment fog is dry, nothing in your home or office is at risk for water damage. Best of all it's all-natural using EPA-registered products and is the only mold remediation process with a one-year guarantee

"He removed the mold and fumigated to remedy the situation in a timely fashion."

Michelle O on January 2025

My Pure Environment New England provides mold removal from homes and businesses throughout Massachusetts. We use a patented dry fog technology that allows us to wipe out the toxic mold, like black mold, from virtually any building. Our revolutionary demolition-free mold remediation method means we can break down microbes on a molecular level, and get rid of the problem without removing walls or ceilings. And because our mold treatment fog is dry, nothing in your home or office is at risk for water damage. Best of all it's all-natural using EPA-registered products and is the only mold remediation process with a one-year guarantee

"He removed the mold and fumigated to remedy the situation in a timely fashion."

Michelle O on January 2025


Avatar for Octagon Cleaning and Restoration
Octagon Cleaning and Restoration
232 Calef Hwy
5.00(
3
)
Approved Pro
Octagon Cleaning and Restoration
232 Calef Hwy
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
49 local quotes requested

Since 2002, Octagon Cleaning & Restoration has been the trusted choice for homeowners and businesses across Maine and New Hampshire. With our ACAC & IICRC Certifications and membership in the Better Business Bureau, we adhere to the highest standards in cleaning and restoration. Our experienced teams are on call 24/7, ready to protect and restore your property quickly and efficiently. We specialize in Water Damage Remediation, Mold Removal, Fire & Smoke Damage Remediation, Commercial Air Duct Cleaning, and Asbestos & Lead Removal. Octagon is here to help every step of the way. We provide thorough assessments, effective mitigation strategies, and seamless communication with your insurance providers. Our commitment to customer satisfaction is reflected in every job we do. From small home cleanups to large commercial restorations, we stand by our 5-Year Guarantee, giving you peace of mind that the job was done right. Octagon Cleaning & Restoration – Your trusted partner in keeping your property safe, clean, and healthy. Contact us today for a free estimate and experience the Octagon difference. Your peace of mind is our priority.

"I would give 10 stars if I could. Octogon did a fabulous job after a frozen pipe disaster. They really went over and above what was required. Blaine, in particular, was wonderful. The house was left in perfect readiness for the rebuild. Thank you, Blaine and Octogon!"

Bonnie P on August 2023

Since 2002, Octagon Cleaning & Restoration has been the trusted choice for homeowners and businesses across Maine and New Hampshire. With our ACAC & IICRC Certifications and membership in the Better Business Bureau, we adhere to the highest standards in cleaning and restoration. Our experienced teams are on call 24/7, ready to protect and restore your property quickly and efficiently. We specialize in Water Damage Remediation, Mold Removal, Fire & Smoke Damage Remediation, Commercial Air Duct Cleaning, and Asbestos & Lead Removal. Octagon is here to help every step of the way. We provide thorough assessments, effective mitigation strategies, and seamless communication with your insurance providers. Our commitment to customer satisfaction is reflected in every job we do. From small home cleanups to large commercial restorations, we stand by our 5-Year Guarantee, giving you peace of mind that the job was done right. Octagon Cleaning & Restoration – Your trusted partner in keeping your property safe, clean, and healthy. Contact us today for a free estimate and experience the Octagon difference. Your peace of mind is our priority.

"I would give 10 stars if I could. Octogon did a fabulous job after a frozen pipe disaster. They really went over and above what was required. Blaine, in particular, was wonderful. The house was left in perfect readiness for the rebuild. Thank you, Blaine and Octogon!"

Bonnie P on August 2023


Avatar for Indoor Environmental
Indoor Environmental
P.O. Box 890186
4.98(
53
)
Approved Pro
Indoor Environmental
P.O. Box 890186
4.98(
53
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 local quotes requested

WE ARE A GREEN MOLD SOLUTION COMPANY. *Our solutions are free of hazardous materials & harsh chemicals *Within 24 hours mold is eliminated, the property is healthy, & ready to be lived in safely *CERTIFIED professionals *Our personal guarantee *Our customers have saved up to 65% over competitive quotes * We work in confidence. Our company vehicles are unmarked, which allows you to maintain a strong level of privacy for your home or business Our unique process replaces demolition & rebuilding, & reduces the need to replace carpets, furnishings & personal items.

"He was very prompt. He came out and let us know what was indeed happening in our basement."

Lira M on September 2019

WE ARE A GREEN MOLD SOLUTION COMPANY. *Our solutions are free of hazardous materials & harsh chemicals *Within 24 hours mold is eliminated, the property is healthy, & ready to be lived in safely *CERTIFIED professionals *Our personal guarantee *Our customers have saved up to 65% over competitive quotes * We work in confidence. Our company vehicles are unmarked, which allows you to maintain a strong level of privacy for your home or business Our unique process replaces demolition & rebuilding, & reduces the need to replace carpets, furnishings & personal items.

"He was very prompt. He came out and let us know what was indeed happening in our basement."

Lira M on September 2019


Avatar for Green Home Solutions of North Central MA
Green Home Solutions of North Central MA
15 Coughlin Street
4.89(
9
)
Approved Pro
Green Home Solutions of North Central MA
15 Coughlin Street
4.89(
9
)
Approved Pro
Customers say: Quick response
33 local quotes requested
4 years of experience

We provide comprehensive indoor air solutions that target the root cause of the problem, not just the symptoms. Our team of experts utilizes science-backed, eco-friendly treatments to eliminate mold, mildew, and other pollutants. With years of experience and a commitment to sustainability, we've successfully transformed thousands of homes, offices, and healthcare facilities across America. Our customers trust us to deliver cleaner, healthier indoor air without harming people, pets, or the planet. Our services include: Indoor Air Quality Assessments: Identifying and addressing potential health risks. Mold Remediation: Effective removal of mold and mildew. HVAC Duct Cleaning: Improving air circulation and reducing allergens. Probiotic Treatments: Enhancing indoor air quality and promoting a healthier environment. Breathe easy with Green Home Solutions.

"Kenson was very thorough and professional, and applied lots of experience to tailor their services to our exact needs."

Anthony G on February 2025

We provide comprehensive indoor air solutions that target the root cause of the problem, not just the symptoms. Our team of experts utilizes science-backed, eco-friendly treatments to eliminate mold, mildew, and other pollutants. With years of experience and a commitment to sustainability, we've successfully transformed thousands of homes, offices, and healthcare facilities across America. Our customers trust us to deliver cleaner, healthier indoor air without harming people, pets, or the planet. Our services include: Indoor Air Quality Assessments: Identifying and addressing potential health risks. Mold Remediation: Effective removal of mold and mildew. HVAC Duct Cleaning: Improving air circulation and reducing allergens. Probiotic Treatments: Enhancing indoor air quality and promoting a healthier environment. Breathe easy with Green Home Solutions.

"Kenson was very thorough and professional, and applied lots of experience to tailor their services to our exact needs."

Anthony G on February 2025


Acadia Contractors
780 Auburn Rd
No reviews
Acadia Contractors
780 Auburn Rd
No reviews
24 years of experience

Acadia Contractors specializes in Asbestos Removal across the state of Maine and New Hampshire. We have the most experience in the industry and give our customers the quality they deserve. As a DEP Licensed Asbestos Training Facility, we even train our competition. No one knows asbestos like we do. Give us a call for a free quote today!

Acadia Contractors specializes in Asbestos Removal across the state of Maine and New Hampshire. We have the most experience in the industry and give our customers the quality they deserve. As a DEP Licensed Asbestos Training Facility, we even train our competition. No one knows asbestos like we do. Give us a call for a free quote today!


Mold Managers
33 Patten Hill Rd
5.00(
3
)
Mold Managers
33 Patten Hill Rd
5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Our business specializes in removing mold from homes. We do quality work at low prices. We are a small locally owned business. We are certified and ready to help you with your mold issues.

"Tim and Chris were great to work with. They contacted me when they were going to be late due to traffic. The answered all my questions and they were very thorough. I would hire them in a heartbeat."

Richard P on July 2024

Our business specializes in removing mold from homes. We do quality work at low prices. We are a small locally owned business. We are certified and ready to help you with your mold issues.

"Tim and Chris were great to work with. They contacted me when they were going to be late due to traffic. The answered all my questions and they were very thorough. I would hire them in a heartbeat."

Richard P on July 2024


Tuxedo Painting LLC
323 Raccoon Hill Rd
No reviews
Tuxedo Painting LLC
323 Raccoon Hill Rd
No reviews

We specialize in and are certified in Lead removal and abatement. We also take care of fixing your home in all facets. Our services are all inclusive including power washing, trim and siding repairs, drywall, interior and exterior painting and other handyman services to make your transformation as easy as possible. No need for multiple contractors. We can do it all. With a crew of 5 experienced individuals, we make quick work of all jobs. We clean our way out the door, so no worries about cleaning up! Allow us to give you a free estimate today on your next project.

We specialize in and are certified in Lead removal and abatement. We also take care of fixing your home in all facets. Our services are all inclusive including power washing, trim and siding repairs, drywall, interior and exterior painting and other handyman services to make your transformation as easy as possible. No need for multiple contractors. We can do it all. With a crew of 5 experienced individuals, we make quick work of all jobs. We clean our way out the door, so no worries about cleaning up! Allow us to give you a free estimate today on your next project.


Aspen Air Duct Cleaning Company
270 Lawrence St
4.77(
43
)
Aspen Air Duct Cleaning Company
270 Lawrence St
4.77(
43
)
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

Aspen Air Duct Cleaning are experts in diagnosing and eliminating indoor air quality problems for both residential and commercial customers in Boston, MA, and the surrounding areas since 2008. We also specialize in dryer vent cleaning to eliminate a commonly overlooked fire hazard as well as mold removal and remediation. We proudly offer 24/7 emergency services. Call for an estimate today!

"Punctual, responsive, knowledgable, hard working problem solvers, and straight shooters in their evaluation of our system. Did not duct seal, not appropriate for our configuration. Had lower estimates but these folks were worth it to me; I’d use them again."

Michael B on September 2022

Aspen Air Duct Cleaning are experts in diagnosing and eliminating indoor air quality problems for both residential and commercial customers in Boston, MA, and the surrounding areas since 2008. We also specialize in dryer vent cleaning to eliminate a commonly overlooked fire hazard as well as mold removal and remediation. We proudly offer 24/7 emergency services. Call for an estimate today!

"Punctual, responsive, knowledgable, hard working problem solvers, and straight shooters in their evaluation of our system. Did not duct seal, not appropriate for our configuration. Had lower estimates but these folks were worth it to me; I’d use them again."

Michael B on September 2022


Millyard Home Inspection LLC
81 Upland St
4.57(
7
)
Millyard Home Inspection LLC
81 Upland St
4.57(
7
)
Customers say: Quick response
17 local quotes requested

Millyard Home Inspection is a home inspection service that meets and exceeds national standards. We are a full service inspection service that includes: Septic Evaluation; Air Radon Testing; Well water Testing; mold, asbestos and lead evaluation testing. First time home buyers or experienced investors will feel comfortable knowing Millyard Home Inspection has the experience and knowledge to make you feel secure in making one of life's biggest decision. My name is Dan Lombardo and I know how frustrating it can be to have phone calls answered by services and never returned; emails that are ignored; and people you hire that show up late or never. The dedicated personal service you receive is what sets Millyard Home Inspection apart.

"Millyard was knowledgeable and prompt with inspection and report. Overall a great job. Thank you!"

Dwight T on July 2022

Millyard Home Inspection is a home inspection service that meets and exceeds national standards. We are a full service inspection service that includes: Septic Evaluation; Air Radon Testing; Well water Testing; mold, asbestos and lead evaluation testing. First time home buyers or experienced investors will feel comfortable knowing Millyard Home Inspection has the experience and knowledge to make you feel secure in making one of life's biggest decision. My name is Dan Lombardo and I know how frustrating it can be to have phone calls answered by services and never returned; emails that are ignored; and people you hire that show up late or never. The dedicated personal service you receive is what sets Millyard Home Inspection apart.

"Millyard was knowledgeable and prompt with inspection and report. Overall a great job. Thank you!"

Dwight T on July 2022

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Mold testing and remediation services FAQs

Some states require mold removal specialists to be licensed, while others require licensed mold testing companies to create remediation protocols that any contractor can carry out. You can use our state licensing tool to find requirements in your area. In either case, it’s imperative that you hire an experienced professional for mold removal to ensure the safety of your home and your family.

It’s possible to scrub mold off of visible surfaces yourself, but it’s not usually a good idea. Mold is not only a potential health risk, but it’s also difficult to treat in its entirety, especially because it can grow behind walls and in other hidden areas a DIYer might miss. Since mold is a serious and often pervasive issue, you should hire a professional that will remove all of the mold—including any that might be hidden—run industrial air scrubbers to remove airborne particles, and complete mold testing to ensure the underlying problem is solved.

The most effective way to remove mold includes testing affected surfaces and the air for spores, creating a protocol for removal, carrying out the steps within the protocol, running air scrubbers for the recommended amount of time, and then completing a post-remediation round of testing to confirm the issue is solved. Since this work is very involved and there are health risks if done incorrectly, you should always hire an experienced professional to handle mold removal.

The average cost for mold remediation is around $2,200, and most projects fall somewhere between $1,100 and $3,300. Your total will depend on many factors, including the surface area that is affected by mold, the extent of the issue, how much building material your professional needs to replace, whether or not testing is necessary for safety reasons, and existing indoor air quality.

Mold removal will take between one and five days in most cases, but severe mold issues can take several weeks to correct. Your timeline will depend on how much mold there is in your home, where the mold is located, and how much testing and aftercare is required. If you have mold behind your walls or you have an excessive amount of mold that requires removal and running air scrubbers for several days, you could be looking at over a week for the process to be completed.

The homeowners guide to mold testing and remediation services
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