Get matched with top radon detection and reduction specialists in Columbus, IN

Customers say: Quick response

•Approved Pro

The KING's Mitigator

9 years of experience

Welcome to The KING's Mitigator, where the protection and enhancement of your home reign supreme. Specializing in roofing, siding, gutters, and remediation services, we are dedicated to preserving the integrity and beauty of your residence. At The KING's Mitigator, we understand that your home is your castle. That’s why we offer comprehensive solutions tailored to withstand the elements and the test of time. Whether you're in need of a sturdy new roof, stylish siding, reliable gutters, or expert remediation services, our skilled team is equipped to deliver top-quality craftsmanship and unparalleled customer service. Trust us to mitigate any challenge with royal precision and make your home a fortress of comfort and safety. Choose The KING's Mitigator—where quality meets royalty.

"King's Mitagators responded quickly to my request, which was greatly appreciated. Sam came out to inspect and quote the job and he could not have been easier to work with during this process. He fully explained the contract specifics and was able to schedule the job within a reasonable timeframe. He kept in contact through out the process and was responsive when I had questions. Chris arrived on time to repair the water damage and prep for painting. The job required work over 3 days. Chris was a pleasure to work with. Such a skilled professional and personally just the nicest person ever. He had two properties to handle and was extremely accommodating in scheduling between the jobs. I would highly recommend King's Mitagators for any level of work you may need. They will always be my first call going forward for future work. Thanks Sam & Chris! It was a pleasure to work with you both."

Dee C on November 2025

"King's Mitagators responded quickly to my request, which was greatly appreciated. Sam came out to inspect and quote the job and he could not have been easier to work with during this process. He fully explained the contract specifics and was able to schedule the job within a reasonable timeframe. He kept in contact through out the process and was responsive when I had questions. Chris arrived on time to repair the water damage and prep for painting. The job required work over 3 days. Chris was a pleasure to work with. Such a skilled professional and personally just the nicest person ever. He had two properties to handle and was extremely accommodating in scheduling between the jobs. I would highly recommend King's Mitagators for any level of work you may need. They will always be my first call going forward for future work. Thanks Sam & Chris! It was a pleasure to work with you both."

Dee C on November 2025

Master Services

Master Services

Recommended by 93% of Angi customers

Free onsite estimate

Master Services is your local, certified basement, crawl space, and foundation repair specialists. They specialize in professional services that improve the health and functionality of your below-grade space: Basement Waterproofing Crawl Space Repair Sump Pumps Foundation Repair Concrete Lifting and Leveling Humidity and Mold Control We will make your basement, crawl space, and foundation safe and usable. With free, no obligation estimates, patented products, and lifetime warranties you can rest assured we have the best solution available on the market to fix your problems permanently.

"5 fails in one job, didn't even listen on what the problem was. Then raised the wrong floor, probably damaged the house. [*** Link removed ***]"

Shane B on August 2024

"5 fails in one job, didn't even listen on what the problem was. Then raised the wrong floor, probably damaged the house. [*** Link removed ***]"

Shane B on August 2024

The Mold Removers LLC

4.76(

•Approved Pro

The Mold Removers LLC

4.76(

Customers say: Quick response

•Approved Pro

Recommended by 94% of Angi customers

37 years of experience

With over 20 years of experience serving the Midwest, we specialize in thorough mold inspection, testing, and removal for both residential and commercial properties. Whether your concern is in the attic, living areas, basement, or crawl space, our skilled team is ready to provide tailored solutions to meet your needs.

"It went well."

S H on August 2019

"It went well."

S H on August 2019

Alpine Maintenance Group Inc

649

Alpine Maintenance Group Inc

649

We have 20 full-time employees and we are a family-owned company. We do not use sub contractors. Cost is determined by the job as all jobs are slightly different. We are NADCA-trained and Certified by the National Air Duct Cleaners Association. We follow their protocol and professional guidelines. Our company and our employees have been certified by The Clean Trust (formerly IICRC) for Applied Microbial Remediation. Ask about our Angie's List discount. We accept cash, personal checks, Visa and M/C. Visit us online at www.alpineairduct.com. Award winning services since 2003 to present.

"The company did an excellent job: they showed up on time (for both the initial estimate and to perform the work), were professional and courteous and cleaned up upon completing the project. I am already a repeat customer and would certainly use this company again in the future."

Julia D on June 2021

"The company did an excellent job: they showed up on time (for both the initial estimate and to perform the work), were professional and courteous and cleaned up upon completing the project. I am already a repeat customer and would certainly use this company again in the future."

Julia D on June 2021

M & T Inspection Services

4.98(

M & T Inspection Services

4.98(

Customers say: Quick response

Recommended by 98% of Angi customers

M&T Inspection Services is a full-service family owned and operated home inspection company which has a dedicated goal to provide the most thorough inspection in our local industry. Troy Hicks is the sole inspector and is one of the few local dual-certified inspectors through both ASHI and InterNACHI. We have completed over 5,000 residential inspections as of 12/2019 and have been in business for 13 years. Our home is usually the largest investment we make and it is critical to ensure hiring an inspection company that has the experience required to properly evaluate that investment. Call us today at (317) 409-0545 for a thorough evaluation of your biggest investment!

"I recently moved into my home. There were very few issues listed by the original inspector. Everything started going wrong in my home. I was despondent and felt unsafe. I called Troy. He took his time with the inspection, explaining everything to me along the way. He explained the priorities and made me feel safe and secure. After the repairs are made, I will call him back to inspect the repairs. He cares and I trust him."

Connie C on February 2021

"I recently moved into my home. There were very few issues listed by the original inspector. Everything started going wrong in my home. I was despondent and felt unsafe. I called Troy. He took his time with the inspection, explaining everything to me along the way. He explained the priorities and made me feel safe and secure. After the repairs are made, I will call him back to inspect the repairs. He cares and I trust him."

Connie C on February 2021

Mark IV Environmental Systems Inc

4.83(

926

Mark IV Environmental Systems Inc

4.83(

926

Recommended by 94% of Angi customers

We have been in business for over 35 years. Our technicians are trained experts and certified in the diagnosis, repair and installation of heating, cooling and refrigeration equipment. We take pride in our work and strive to provide the highest quality service available. Your family’s comfort and satisfaction is our number one concern.

"During a heat wave in August with temps in the 90s, our air conditioner went out. We had a technician come out on Monday morning who recommended replacement of our unit. I purchased the Enhanced Service Plan for $250 which would provide two annual maintenance services. I was told that the office would call us back with an estimate. Near the end of the day, we called and asked for an estimate and were told we would receive one in the morning. We waited until after noon on Tuesday to make a decision on which company to go with after receiving 2 other estimates. Given the heat wave and having not received an estimate from Mark IV at that time, we decided to go with a company. I emailed asking if I could receive a refund on the Enhanced Service Plan due to the untimely estimate and the company we ended up going with requiring us to use their service for the first year for warranty purposes. I never received a reply or a refund."

Justin K on September 2023

"During a heat wave in August with temps in the 90s, our air conditioner went out. We had a technician come out on Monday morning who recommended replacement of our unit. I purchased the Enhanced Service Plan for $250 which would provide two annual maintenance services. I was told that the office would call us back with an estimate. Near the end of the day, we called and asked for an estimate and were told we would receive one in the morning. We waited until after noon on Tuesday to make a decision on which company to go with after receiving 2 other estimates. Given the heat wave and having not received an estimate from Mark IV at that time, we decided to go with a company. I emailed asking if I could receive a refund on the Enhanced Service Plan due to the untimely estimate and the company we ended up going with requiring us to use their service for the first year for warranty purposes. I never received a reply or a refund."

Justin K on September 2023

Radon Environmental, Inc.

182

Radon Environmental, Inc.

182

Radon Environmental, Inc. is your trusted partner for radon detection and reduction in Indianapolis. With a team of 4-6 dedicated professionals, we tailor our services to meet your specific needs. Contact us today for a safer and healthier home.

"I wish I could give 0 stars, honestly. The house flippers that we bought the home from used Radon Environmental during the flip in January to solve the radon mitigation issues in the slab following a different buyer being scared off by the high radon levels. By the time we walked through the house with the inspector in February, the radon levels MORE THAN DOUBLED (over 10 pCi/L, for those wondering.) It was then that I began to be skeptical of Radon Environmental, so I negotiated in our closing contract for the house flippers to pay for everything. This, unfortunately, made me contractually obligated to use Radon Environmental. Trust me, I tried to convince the house flippers to switch companies. To make long stories short, Patrick (technician) made 3 mistakes in the house which made those radon levels spike that high for A MONTH. Each time, Scott (manager-ish) had to come fix Patrick's mistakes. Of course, the owner was difficult to reach (only responds to customers via email, per his office staff) and when he did reach out via phone following my prompting, he made nothing but excuses for Patrick. I am, once again, so grateful that I was not on the hook for cost as they did the house flippers little favors when it came to billing. TLDR; there are better radon companies out there, and I found more than a few in the area with Better Business Bureau accreditations, among other accolades. Give those companies your business instead of these people who turned a small radon issue into a 6 month one. If you do use this company, don't let Patrick near your home."

Herman G on May 2025

"I wish I could give 0 stars, honestly. The house flippers that we bought the home from used Radon Environmental during the flip in January to solve the radon mitigation issues in the slab following a different buyer being scared off by the high radon levels. By the time we walked through the house with the inspector in February, the radon levels MORE THAN DOUBLED (over 10 pCi/L, for those wondering.) It was then that I began to be skeptical of Radon Environmental, so I negotiated in our closing contract for the house flippers to pay for everything. This, unfortunately, made me contractually obligated to use Radon Environmental. Trust me, I tried to convince the house flippers to switch companies. To make long stories short, Patrick (technician) made 3 mistakes in the house which made those radon levels spike that high for A MONTH. Each time, Scott (manager-ish) had to come fix Patrick's mistakes. Of course, the owner was difficult to reach (only responds to customers via email, per his office staff) and when he did reach out via phone following my prompting, he made nothing but excuses for Patrick. I am, once again, so grateful that I was not on the hook for cost as they did the house flippers little favors when it came to billing. TLDR; there are better radon companies out there, and I found more than a few in the area with Better Business Bureau accreditations, among other accolades. Give those companies your business instead of these people who turned a small radon issue into a 6 month one. If you do use this company, don't let Patrick near your home."

Herman G on May 2025

PURE AIR ENVIRONMENTAL

4.92(

PURE AIR ENVIRONMENTAL

4.92(

Customers say: True professional

Keeping your family safe from airborne chemicals is our number one goal. Today's environment is full of unsafe and unseen hazardous chemicals which can pose serious health problems for you and your family over time. Our ventilation systems will eliminate these dangerous concerns and keep your family safe for years to come giving you peace of mind. Call us today at (317)760-7873 to schedule one of our award winning services so your family can breath Pure Air. Protecting Indiana families one set of lungs at a time!

"they installed the vent pipe in a place other than where I might have wanted it. When we had a problem 6 months in, they came back, resolved the problem. I'd use them again"

Peter W on June 2023

"they installed the vent pipe in a place other than where I might have wanted it. When we had a problem 6 months in, they came back, resolved the problem. I'd use them again"

Peter W on June 2023

Environmental Testing & Research Laboratories, Inc

4.85(

347

Environmental Testing & Research Laboratories, Inc

4.85(

347