Top-rated radon detection and reduction specialists.

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Avatar for  Prime Contracting, LLC

Prime Contracting, LLC

PO Box 343
4.92(
12
)
Approved Pro

Prime Contracting, LLC

PO Box 343
4.92(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 local quotes requested

Prime Contracting LLC is a company with over 30 years combined experience in Asbestos Abatement, Mold Remediation, and Selective Demolition. Let us help take the danger for you from hazardous material Removal. Licensed and Insured… we do not do testing of any kind

"Corey and team were nothing short of professional and efficient. From the price point to the level of excellence in the cleaning, I could not ask for more. I would hire Prime over and over again. Their compassion and kindness during a really sad time was greatly appreciated too."

Julia C on September 2025

Prime Contracting LLC is a company with over 30 years combined experience in Asbestos Abatement, Mold Remediation, and Selective Demolition. Let us help take the danger for you from hazardous material Removal. Licensed and Insured… we do not do testing of any kind

"Corey and team were nothing short of professional and efficient. From the price point to the level of excellence in the cleaning, I could not ask for more. I would hire Prime over and over again. Their compassion and kindness during a really sad time was greatly appreciated too."

Julia C on September 2025


Safe Harbor Home Services

2850 Coit Ave NE
No reviews yet

Safe Harbor Home Services

2850 Coit Ave NE
No reviews yet
4 years of experience

Local company who offers comprehensive inspection services by a Certified Professional Inspector. I serve West Michigan and am based in Grand Rapids. I inspect to InterNACHI standards and have been certified to provide radon testing, mold testing, wood destroying insect inspection, thermal imaging and more. I want you, the customer, to be satisfied before and after the inspection. I will make you my priority and present to you a detailed yet easy to read inspection for your new home that will highlight needed repairs, safety concerns or maintenance items that will need attention.

Local company who offers comprehensive inspection services by a Certified Professional Inspector. I serve West Michigan and am based in Grand Rapids. I inspect to InterNACHI standards and have been certified to provide radon testing, mold testing, wood destroying insect inspection, thermal imaging and more. I want you, the customer, to be satisfied before and after the inspection. I will make you my priority and present to you a detailed yet easy to read inspection for your new home that will highlight needed repairs, safety concerns or maintenance items that will need attention.


SGS Contracting Environmental Services Llc

P.O.Box 629
5.00(
5
)

SGS Contracting Environmental Services Llc

P.O.Box 629
5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

*Call us today and ask about our Angie's List Deals!* With over 20 years of experience, we specialize in asbestos abatement, Mold and Radon Remediation, Duct cleaning and sterilization, Indoor air quality, Air Sampling Testing and Inspections. Let-SGS Clear the Air! *20% Discount for Seniors and Veterans*

"Great communication and very nice work on this project! I'd definitely recommend them and hire them again for a future project!"

Shayne M on February 2020

*Call us today and ask about our Angie's List Deals!* With over 20 years of experience, we specialize in asbestos abatement, Mold and Radon Remediation, Duct cleaning and sterilization, Indoor air quality, Air Sampling Testing and Inspections. Let-SGS Clear the Air! *20% Discount for Seniors and Veterans*

"Great communication and very nice work on this project! I'd definitely recommend them and hire them again for a future project!"

Shayne M on February 2020


Northland Basement Systems

111 Commercial Lane
3.00(
3
)

Northland Basement Systems

111 Commercial Lane
3.00(
3
)
25 years of experience

Serving the Greater Ashland area of Michigan and Wisconsin. Specializing in basement waterproofing, crawl space repair, gutter installation, concrete lifting & leveling, attic insulation, foundation repair, & commercial foundation services. FREE estimates available.

"Worst workmanship I’ve ever seen. Basement still leaks, the system they installed does not drain water into the sump crock looks like water is now being diverted under the floor. Owner never came out to look at what his employees call a finished job. I was quoted by Dennis $56 a foot in the basement and when I got upstairs it was actually $59, red flag. I was quoted and designed a system and they installed another. Look at pics and you decide if you want to hire these hacks and liars. One other thing the workers mixed the Qiukrete next to my furnace that was running and the whole house was filled with concrete dust."

Steve H on June 2020

Serving the Greater Ashland area of Michigan and Wisconsin. Specializing in basement waterproofing, crawl space repair, gutter installation, concrete lifting & leveling, attic insulation, foundation repair, & commercial foundation services. FREE estimates available.

"Worst workmanship I’ve ever seen. Basement still leaks, the system they installed does not drain water into the sump crock looks like water is now being diverted under the floor. Owner never came out to look at what his employees call a finished job. I was quoted by Dennis $56 a foot in the basement and when I got upstairs it was actually $59, red flag. I was quoted and designed a system and they installed another. Look at pics and you decide if you want to hire these hacks and liars. One other thing the workers mixed the Qiukrete next to my furnace that was running and the whole house was filled with concrete dust."

Steve H on June 2020


Central Home Inspections

9780 Green Rd
4.00(
4
)

Central Home Inspections

9780 Green Rd
4.00(
4
)
Customers say: Quick response
14 years of experience

We are Certified Inspections Experts, as well as Certified Home Inspectors with InterNACHI. We have 2 inspectors with 1 apprentice. We accept Visa, Mastercard, Discover, American Express, check,cash

"Mike was prompt, pleasant, and did a very thorough inspection. His electronic inspection report was great - grouped by area, color coded by severity, and very easy to read. We had a great experience and would definitely hire him again."

Cathy H on April 2018

We are Certified Inspections Experts, as well as Certified Home Inspectors with InterNACHI. We have 2 inspectors with 1 apprentice. We accept Visa, Mastercard, Discover, American Express, check,cash

"Mike was prompt, pleasant, and did a very thorough inspection. His electronic inspection report was great - grouped by area, color coded by severity, and very easy to read. We had a great experience and would definitely hire him again."

Cathy H on April 2018


Detroit Abatement Demolition

8953 Stoney Creek Drive
No reviews yet

Detroit Abatement Demolition

8953 Stoney Creek Drive
No reviews yet
12 years of experience

Full Service Environmental Company with over 13 years experience. When things fall in disarray who else to turn to then D,A,D. (Detroit Abatement Demolition) to help Protect a Families Environment. We treat each of our clients like Family.

Full Service Environmental Company with over 13 years experience. When things fall in disarray who else to turn to then D,A,D. (Detroit Abatement Demolition) to help Protect a Families Environment. We treat each of our clients like Family.


C.T.Janni & Associates

5098 Knapp Drive
No reviews yet

C.T.Janni & Associates

5098 Knapp Drive
No reviews yet
32 years of experience

We are a small 1-3 person full service plumbing/mechanical contracting & repair company located in Flint, Mi. and offer senior discounts, financing, utility rebates, all at competitive prices.

We are a small 1-3 person full service plumbing/mechanical contracting & repair company located in Flint, Mi. and offer senior discounts, financing, utility rebates, all at competitive prices.



MCL Radon Gas Technician

5493 Sparr Rd
No reviews yet

MCL Radon Gas Technician

5493 Sparr Rd
No reviews yet
18 years of experience

Our company is dedicated to treating your home like it is our own. We are a low impact company that will always be polite and professional. Low impact means your home will always be left clean and installation will always be constructed that is best for your home. We include a retest to make sure the system we install is getting the job done. We have 3 very nice and professional technicians that you will enjoy having work in your home.

Our company is dedicated to treating your home like it is our own. We are a low impact company that will always be polite and professional. Low impact means your home will always be left clean and installation will always be constructed that is best for your home. We include a retest to make sure the system we install is getting the job done. We have 3 very nice and professional technicians that you will enjoy having work in your home.


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Radon Detection and Reduction questions, answered by experts

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.

A DIY kit can lessen the sting that comes with paying for a professional assessment, but these comprehensive tests are true lifesavers. Inspectors are more likely to catch all of the pollutants and hazards in your air. Plus, you’ll still need a professional to verify and act on your DIY test results. 

Some kits don’t include tests for certain air pollutants or only detect their presence, but not their levels (i.e., mold spores). If you’re willing to shell out money for a DIY kit, it’s usually better to stretch your budget slightly higher for a more detailed assessment.

Mold, VOCs, radon, carbon monoxide, and particulate matter are typically measured.

Radon is a colorless, odorless gas that can cause lung cancer; testing ensures safe indoor air quality.

Professional radon detection involves placing test kits in the lowest lived-in level of the house for a period, usually 48 hours to several months, followed by lab analysis of collected data.

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The Marion, MI 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.