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TRUSTED BY DEDHAM, MA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon26
    Verified mold testing and remediation services reviews

Top-Rated Mold testing and remediation specialists in Dedham - Updated Nov 2026

Avatar for Affordable Mold Removal
Affordable Mold Removal
4.7(
105
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business+2 more

Serving Dedham, MA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"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."
Additional Photos
Additional Photos
Response time4 days
Response rate100%
Recommended by96%of homeowners
Avatar for Above All Mold Removal
Above All Mold Removal
5.0(
19
)
Mold & Toxic Material TestIndoor Air Quality TestingToxicity and Mold - Removal+2 more

Serving Dedham, MA and surrounding areas

Approved

In business since 2024

Free estimates

Warranties offered

"Above All Mold Removal has been my go-to company when we encounter mold inside attics on our roofing projects. They have been reliable, excellent at what they do, affordable, and easy to work with!"
Black attic mold before
Basement mold before
Black attic mold after
Basement mold after
Basement mold 2 before

+31

Response time9 hrs
Response rate100%
4 neighbors recently requested a quote
Avatar for Indoor Environmental
Indoor Environmental
5.0(
56
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business+2 more

Serving Dedham, MA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"Jon came by for a consult to look at some ugly looking black staining that was growing in my basement. He was very professional and punctual and thoroughly explained why it was not mold, but harmless mildew and how to rectify it. I was so appreciative for his integrity and honesty and I will absolutely use Indoor Environmental if I ever do get mold in my house."
3 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for My Pure Environment New England
My Pure Environment New England
4.8(
105
)
Mold & Toxic Material TestMold & Toxic Material Test - For BusinessToxicity and Mold - Removal+1 more

Serving Dedham, MA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"I had a positive experience with Rey and Giovanni at My Pure Environmental. Both were responsive and professional throughout, and they scheduled and performed the mold remediation on my house quickly and on a schedule. Rey was easy to work with in terms of scheduling, and Giovanni was nice and professional in person and kept me updated."
Fog building up
Deep clean
Full Fog
Attic Rafters
Attic Rafters

+3

Response time5 hrs
Response rate95%
Recommended by80%of homeowners
Avatar for Green Home Solutions
Green Home Solutions
4.5(
141
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Dedham, MA and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"I have been having allergy issues and needed to have the air quality in my home tested. I first spoke with Jacquie, who was both professional and personable. She explained they would sent someone out to inspect home for any obvious mold issues and do an air quality test if nothing was evident. Tanner arrived as scheduled and was also very knowledgeable, personable and thorough. Did inspection, tested air quality and got back to me with the results In a day. Would use again."
Attic Mold Remediation
After Remediation by Green Home Solutions
Tanner with the Chevy Colorado
Steve and Tanner
Hepa Air Scrubber

+55

Response time1 day
44 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for All Clean Environmental Services, Inc.
All Clean Environmental Services, Inc.
4.5(
39
)
Toxicity and Mold - RemovalMold & Toxic Material TestMold & Toxic Material Test - For Business+1 more

Serving Dedham, MA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"I am very happy that I had All Clean Environmental Services to fulfill my project. They are extremely reliable in all aspects, price is reasonable. The terrific asbestos removal job was done, my place is left been very clean. The most important for me was a direct and clear communication with Kevin from the first phone conversation, during the project and after it was finished. He is a very knowledgeable specialist and the nicest person. Kevin went above and beyond making me been comfortable and absolutely worry free. Would like also mention that I appreciate how detailed were Kevin and Sorany with all documentation I was getting from them via emails. Thank you so much, Kevin and Sorany! Highly reccommend this company!"
Response time11 hrs
2 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Mold Test Company North East
Mold Test Company North East
3.8(
91
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Dedham, MA and surrounding areas

Approved

In business since 2008

Small jobs welcome

Credit card accepted

"Jeremiah came out and tested the air and moisture and other items to determine if I had mold in my basement. After getting the test results there was evidence of mold and he recommended a company that provides a do it yourself kit for mold remediation. (Not cheap). After getting the items and realizing that there was more work, it would have been better for me to let my insurance company handle this as I do have coverage for mold/fungi. Though having a professional do the work is expensive, from what Jeremiah mentioned, it does not guarantee that the work will be complete or the source of the problem taken care of. He mentioned most companies will take care of the mold but not necessarily the cause of the mold. For this I would have to contact another company."
Mold Testing
Mold Testing
Mold Testing
Mold Testing
Mold Testing

+69

Response time5 hrs
23 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Air Guardian Inc.
Air Guardian Inc.
5.0(
5
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business+2 more

Serving Dedham, MA and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

At Air Guardian Inc., we specialize in protecting homes and properties through professional mold remediation, indoor air quality inspections, water damage restoration, basement waterproofing, crawlspace encapsulation, air duct cleaning, and radon mitigation services.\n\nServing Massachusetts and Rhode Island, our certified professionals combine advanced diagnostic technology, industry-leading equipment, and proven remediation techniques to identify problems at their source and deliver lasting solutions.\n\nFrom hidden moisture and mold concerns to flooded basements and poor indoor air quality, we provide honest assessments, transparent recommendations, and exceptional workmanship. Whether you're facing an emergency or planning preventative improvements, Air Guardian Inc. is committed to restoring confidence in your property.\n\nProtecting Your Property. Preserving Your Peace of Mind.

3 neighbors recently requested a quote
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Mold Testing and Remediation FAQs, answered by experts

Slime mold isn’t toxic to your dog, even if they eat it. Toxicity and comfort are two different things, and if you notice your dog eating slime mold, you should stop them, but not worry too much. Expect a period of gastrointestinal distress, and possibly some other complications, but your dog should be ok within a few days.

The purpose of crawl space encapsulation is to prevent mold by blocking moisture and reducing humidity. If the vapor barrier is properly installed, it significantly reduces the chance of mold developing within the crawl space. However, mold can sometimes grow behind the encapsulation material, but it will be sealed away from the main area. Additionally, moisture can still condense inside the encapsulated space, so if you notice excess humidity, installing a dehumidifier is recommended to prevent mold and mildew growth.

Mold can begin growing in as little as one to two days after your ceiling has been exposed to water. Mold grows and spreads quickly and can cause serious health problems. Always ensure areas with leaks are fully dried out, and any damaged material is replaced to discourage mold growth.

The difference between mold and mildew is that mildew is a mild type of mold, whereas mold can be used to describe many different types of fungus. In general, mold is more dangerous than mildew. If you spot mold in your home, you will need a professional mold remediation specialist to help clean and remove it.

Mold grows quickly. It typically begins to grow on drywall about 24 hours after exposure to moisture or humidity. Drywall is a porous material, which makes it particularly hospitable to mold growth. 

While mold growth begins after just a day or so, it can take a few weeks before the evidence becomes visible. Mold spores will typically appear on the drywall surface within three weeks of growth starting.

The Dedham, MA 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.