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Radon detection and reduction specialists in Gilmanton

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 Millyard Home Inspection
Millyard Home Inspection
81 Upland Street
4.90(
150
)
•
Approved Pro
Millyard Home Inspection
81 Upland Street
4.90(
150
)
•
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
22 local quotes requested

Welcome to Millyard Home Inspection.. We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! We also do: Air radon testing; Mold testing; Comprehensive water testing; Same day septic testing.

"It went well, they did a great job."

richard f on October 2024

Welcome to Millyard Home Inspection.. We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! We also do: Air radon testing; Mold testing; Comprehensive water testing; Same day septic testing.

"It went well, they did a great job."

richard f on October 2024


Avatar for True North Home Inspections, LLC
True North Home Inspections, LLC
34 Cottage Street
4.92(
24
)
•
Approved Pro
True North Home Inspections, LLC
34 Cottage Street
4.92(
24
)
•
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 local quotes requested

True North Home Inspections, LLC is the solution to all of your home inspection needs. We take great pride our extreme professionalism, timeliness, and superior customer service on every job. We makes 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!

"John was very thorough in his work and took the time to point out to my husband not only what would need or even just WANT repair but also how to do the work himself so that we could do it ourselves. We will be recommending True North to anyone we know who needs an inspection done from here on out."

Kayla R on December 2023

True North Home Inspections, LLC is the solution to all of your home inspection needs. We take great pride our extreme professionalism, timeliness, and superior customer service on every job. We makes 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!

"John was very thorough in his work and took the time to point out to my husband not only what would need or even just WANT repair but also how to do the work himself so that we could do it ourselves. We will be recommending True North to anyone we know who needs an inspection done from here on out."

Kayla R on December 2023


Erickson Foundation Solutions
14 Clement Road
4.56(
9
)
Erickson Foundation Solutions
14 Clement Road
4.56(
9
)
Customers say: True professional
46 local quotes requested

Erickson Foundation Solutions is your local expert for ALL THINGS BASEMENTY! We specialize in basement waterproofing, foundation and crawl space repair, sump pump installation and maintenance, concrete lifting & leveling, as well as radon mitigation. When it comes to problems or ongoing issues in your basement, we offer permanent solutions! We are a family owned business that began in 1979, proudly serving New Hampshire, Massachusetts, and Rhode Island.

"They did a fantastic job! We have had driving rain since the installation and our basement is bone dry. They came on time, were very polite and I'm very happy with the fast train system they installed."

Chris T on November 2021

Erickson Foundation Solutions is your local expert for ALL THINGS BASEMENTY! We specialize in basement waterproofing, foundation and crawl space repair, sump pump installation and maintenance, concrete lifting & leveling, as well as radon mitigation. When it comes to problems or ongoing issues in your basement, we offer permanent solutions! We are a family owned business that began in 1979, proudly serving New Hampshire, Massachusetts, and Rhode Island.

"They did a fantastic job! We have had driving rain since the installation and our basement is bone dry. They came on time, were very polite and I'm very happy with the fast train system they installed."

Chris T on November 2021


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


New England Radon LTD
11A Industrial Way
3.50(
2
)
New England Radon LTD
11A Industrial Way
3.50(
2
)
Customers say: Quick response
39 years of experience

NH & MA Water and Air Testing New England Radon, Ltd. is a New Hampshire-based independent water and air testing laboratory founded in 1986 that offers a full range of contaminant testing and radon mitigation services. New England Radon uses state of the art equipment and EPA approved methods. Our service areas include the following greater metro areas: Boston MA and Manchester NH. Our Radon Mitigation Services Our radon mitigation division provides fully guaranteed solutions for the radon remediation in air and water as well as a full range of solutions for water contamination problems. About New England Radon Ltd. New England Radon Ltd. is accredited by NEHA (National Environmental Health Association) and NELAP (National Environmental Laboratory Accreditation Program). We are proud to provide professional and prompt service. Our tests are accurate and affordable, and we understand the importance of fast, efficient service. Please see our full accredited analyte list for more information.

NH & MA Water and Air Testing New England Radon, Ltd. is a New Hampshire-based independent water and air testing laboratory founded in 1986 that offers a full range of contaminant testing and radon mitigation services. New England Radon uses state of the art equipment and EPA approved methods. Our service areas include the following greater metro areas: Boston MA and Manchester NH. Our Radon Mitigation Services Our radon mitigation division provides fully guaranteed solutions for the radon remediation in air and water as well as a full range of solutions for water contamination problems. About New England Radon Ltd. New England Radon Ltd. is accredited by NEHA (National Environmental Health Association) and NELAP (National Environmental Laboratory Accreditation Program). We are proud to provide professional and prompt service. Our tests are accurate and affordable, and we understand the importance of fast, efficient service. Please see our full accredited analyte list for more information.


Red Dog Home Inspections, LLC
7 Holbrook
5.00(
2
)
Red Dog Home Inspections, LLC
7 Holbrook
5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Fully licensed and certified Home Inspections are offered in MA and New Hampshire for home buyers, sellers and mortgage companies, as well as component inspections for insurance companies. A Red Dog inspection includes, in part, electic, heating and air conditioning, structure, roof, foundation, attic, basement, crawlspace, deeck, shed, garage, yard walls, steps, driveway, walkways, drains, gutters, chimneys, vents, handrails, mositure intrusion, etc.

Fully licensed and certified Home Inspections are offered in MA and New Hampshire for home buyers, sellers and mortgage companies, as well as component inspections for insurance companies. A Red Dog inspection includes, in part, electic, heating and air conditioning, structure, roof, foundation, attic, basement, crawlspace, deeck, shed, garage, yard walls, steps, driveway, walkways, drains, gutters, chimneys, vents, handrails, mositure intrusion, etc.


US Water Consultants Inc
46 Lowell Rd
4.00(
4
)
US Water Consultants Inc
46 Lowell Rd
4.00(
4
)
Customers say: Quick response
Free onsite estimate

We are a Certified NH water treatment company specializing in hard water problems as well as RADON Arsenic and Filters

We are a Certified NH water treatment company specializing in hard water problems as well as RADON Arsenic and Filters


Easy Home Inspections
1465 Woodbury Ave #398
No reviews
Easy Home Inspections
1465 Woodbury Ave #398
No reviews
12 years of experience

NH Lic#298. Home Inspection Services, Free 90 Day Warranty, Free RecallChek on appliances, furnaces, etc.

NH Lic#298. Home Inspection Services, Free 90 Day Warranty, Free RecallChek on appliances, furnaces, etc.


Yankee Pump & Filter Co
75 Pinkham Rd
No reviews
Yankee Pump & Filter Co
75 Pinkham Rd
No reviews
48 years of experience

We install and repair all types do domestic and light commercial well water pumps. Typically a winder in the truck will pull and coil your well pump down to 600 feet, in the truck for ease and cleanliness. For larger jobs, we use our crane truck. "WE FIX WATER" Water conditioning and treatment repair and installation is a specialty...iron, manganese, arsenic, radon, hardness! "BUY A FILTER or BE A FILTER" Radon mitigation in water or air is a growing part of the business. Small community water system management is also part of the business with a 1A category license. Yankee Pump &Filter was established Jan 1977, and I am the original owner!

We install and repair all types do domestic and light commercial well water pumps. Typically a winder in the truck will pull and coil your well pump down to 600 feet, in the truck for ease and cleanliness. For larger jobs, we use our crane truck. "WE FIX WATER" Water conditioning and treatment repair and installation is a specialty...iron, manganese, arsenic, radon, hardness! "BUY A FILTER or BE A FILTER" Radon mitigation in water or air is a growing part of the business. Small community water system management is also part of the business with a 1A category license. Yankee Pump &Filter was established Jan 1977, and I am the original owner!

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Radon detection and reduction services FAQs

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. 

Radon testing costs depend on whether you hire a professional radon inspector or DIY test. You can expect to pay $150 to $800 to hire a local radon inspector, and home-testing kits range in price from $15 to $250 from home improvement stores. However, it’s best to trust a professional inspector with this task to ensure accurate results. Plus, if you have radon in your home, your testing company can develop a mitigation protocol to keep you and your family safe from the dangerous gas, so it’s well worth the money to hire a professional.

If radon is present in your home, you can expect to pay around $1,000 for a radon mitigation system or between $780 and $1,250 in most cases. The exact price will depend on the severity of the radon leak, home size, and the protocol the radon specialist develops to remove radon from your home and keep it out. Your foundation type will also affect your radon mitigation system cost, as unfinished basements will cost about $4,600 to seal and ventilate, while crawl spaces without a foundation slab may need extra encapsulation, costing $1,500 to $15,000.

Yes, radon testing is absolutely necessary if you suspect the presence of this hazardous gas, and the Environmental Protection Agency (EPA) recommends testing for all homes in the country. Radon is a pervasive natural gas that can leak through your home’s foundation and seep into the living areas. Unfortunately, the gas is highly carcinogenic and is the second leading cause of lung cancer. Radon testing is crucial for keeping you and your family safe from harm, so hire a radon mitigation specialist to test your home if you suspect its presence in your home.

In most states, radon testing companies don’t need to be licensed or certified by the state, but the companies that analyze the test results and develop radon mitigation protocols do. You should choose a radon testing company that suits your needs, but before hiring a mitigation specialist, check our state licensing tool to make sure the company is properly certified.

The homeowners guide to radon detection and reduction services
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