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Mold testing and remediation specialists in Alstead

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 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


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
16 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


Green Home Solutions - New Hampshire
19 Wilton Rd
No reviews
Green Home Solutions - New Hampshire
19 Wilton Rd
No reviews

Additional address - PO Box 470, Peterborough, New Hampshire 03458. Locally owned & operated. Green Home Solutions® is proud to bring products and services that protect Families and Pets from insect and air quality threats, feel better and enjoy life. We strive to find natural and safe solutions to life's issues that are made in the US. Being comfortable inside and outside of our homes is a part of truly enjoying life. When a simple pleasure like being able to enjoy an evening with family and friends outdoors in the warm months, is taken away from us, it can be very stressful. At Green Home Solutions we are here to help. We offer fast, easy and effective ways to solve the problems that cause distress and restore life's enjoyment. We guarantee it. And fixing these problems doesn't have to mean that you are introducing harsh chemicals into the environment or around your family and pets any longer. Green Home Solutions® specializes in using products for our services that use natural ingredients and are safe when used as directed.

Additional address - PO Box 470, Peterborough, New Hampshire 03458. Locally owned & operated. Green Home Solutions® is proud to bring products and services that protect Families and Pets from insect and air quality threats, feel better and enjoy life. We strive to find natural and safe solutions to life's issues that are made in the US. Being comfortable inside and outside of our homes is a part of truly enjoying life. When a simple pleasure like being able to enjoy an evening with family and friends outdoors in the warm months, is taken away from us, it can be very stressful. At Green Home Solutions we are here to help. We offer fast, easy and effective ways to solve the problems that cause distress and restore life's enjoyment. We guarantee it. And fixing these problems doesn't have to mean that you are introducing harsh chemicals into the environment or around your family and pets any longer. Green Home Solutions® specializes in using products for our services that use natural ingredients and are safe when used as directed.


JP Pest Services - Vermont
878 Hartford Ave
4.54(
24
)
JP Pest Services - Vermont
878 Hartford Ave
4.54(
24
)
Customers say: Super punctual
100 years of experience

Family owned & operated since 1925. We have local service representatives living throughout our service area and multiple service centers to provide you with timely, local service.

Family owned & operated since 1925. We have local service representatives living throughout our service area and multiple service centers to provide you with timely, local service.


Peachtree Builders, Inc
66 State St
5.00(
1
)
Peachtree Builders, Inc
66 State St
5.00(
1
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Peachtree Builders, Inc. is a full-service building and remodeling company specializing in rehabilitation, additions, and remodeling projects. We have successfully completed many projects in the Upper Valley of New Hampshire and Vermont.

Peachtree Builders, Inc. is a full-service building and remodeling company specializing in rehabilitation, additions, and remodeling projects. We have successfully completed many projects in the Upper Valley of New Hampshire and Vermont.


Allied Property Solutions Incorporated
192 Chelsea Street
No reviews
Allied Property Solutions Incorporated
192 Chelsea Street
No reviews
21 years of experience

We provide turn key construction services from start to finish. Whether your project is a small remodel, or a custom home you will receive the same high level of service that we are known for. New Construction New construction is our forte. We build accurate and fast. Our Project Managers take time to keep you informed of progress and potential changes. Our Pro-Active approach allows us to make adjustments before there is a significant impact on the success of your project. Our detail oriented Project Teams have satisfied very discerning clients with complex and demanding building needs. Remodeling You have been thinking about your project for a long time. So have we. Our years of experience have shown us how to keep your life operating smoothly while we transform your home. We do a lot of work up front, like pre-scheduling subcontractors and inspections to make sure that your project progresses effeciently. Kitchen Remodeling The differnce between a great kitchen and an average one is in the details. We start with a thourough analysis of your needs so we account for the important details from the start. Our craftsman are experts of wood, stone, water, and electricity providing you with a sensual and intuitive cooking experience. Additions Whether its adding another story, converting a garage or basement, or just a room enlargement, you'll be in good hands as our experienced crew moves quickly and efficiently to transform your home. We respect your space and work to keep your home clean and safe. Because we focus on efficiency and quality, trusting your addition to us is a safe investment. Bath Remodeling We excel at making the most out of small bathrooms. Adding bay windows, expanding into unused closets, opening up with skylights, are just few of the techiques we use to create charming baths. Deck & Fence Thinking of building a deck. We specialize in creating outdoor living spaces that are beautiful and functional. Our craftsman are experience with low maintance recycled deck materials as well as beautiful all natural wood. We use these same durable materials for outdoor fencing to give you lasting beauty and privacy.

We provide turn key construction services from start to finish. Whether your project is a small remodel, or a custom home you will receive the same high level of service that we are known for. New Construction New construction is our forte. We build accurate and fast. Our Project Managers take time to keep you informed of progress and potential changes. Our Pro-Active approach allows us to make adjustments before there is a significant impact on the success of your project. Our detail oriented Project Teams have satisfied very discerning clients with complex and demanding building needs. Remodeling You have been thinking about your project for a long time. So have we. Our years of experience have shown us how to keep your life operating smoothly while we transform your home. We do a lot of work up front, like pre-scheduling subcontractors and inspections to make sure that your project progresses effeciently. Kitchen Remodeling The differnce between a great kitchen and an average one is in the details. We start with a thourough analysis of your needs so we account for the important details from the start. Our craftsman are experts of wood, stone, water, and electricity providing you with a sensual and intuitive cooking experience. Additions Whether its adding another story, converting a garage or basement, or just a room enlargement, you'll be in good hands as our experienced crew moves quickly and efficiently to transform your home. We respect your space and work to keep your home clean and safe. Because we focus on efficiency and quality, trusting your addition to us is a safe investment. Bath Remodeling We excel at making the most out of small bathrooms. Adding bay windows, expanding into unused closets, opening up with skylights, are just few of the techiques we use to create charming baths. Deck & Fence Thinking of building a deck. We specialize in creating outdoor living spaces that are beautiful and functional. Our craftsman are experience with low maintance recycled deck materials as well as beautiful all natural wood. We use these same durable materials for outdoor fencing to give you lasting beauty and privacy.

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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
From average costs to expert advice, get all the answers you need to get your job done.
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You’ve just opened your toilet to a slimy surprise, and now you’re wondering: Why is mold growing in my toilet? Here are the most common causes.
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