Best Radon Companies in Indianapolis (2027)
We compared 6 radon testing and mitigation companies that serve Indianapolis on Google rating, review count, years in business, BBB rating, state licensing, published prices and warranties. Healthy Radon Solutions is our pick for best overall, because it publishes its prices, and it pairs a written below-4.0 guarantee with NRPP certification numbers you can verify.
Key takeaways
- Best overall: Healthy Radon Solutions. It posts its prices ($169 test, $1,200–$2,400 for most mitigation systems), and it guarantees results below 4.0 pCi/L. It’s BBB A+ accredited, Neighbor Serve vetted and has 400+ Google reviews across its profiles.
- Best for urgent jobs and closing deadlines: Healthy Radon Solutions. After the 48-hour test, your report arrives the day the monitor is picked up, and most systems install in one day. Radon Environmental has three reviews describing work finished before a home closed.
What is radon?
Radon is a radioactive gas that seeps up from the soil into homes. It has no smell, color or sound, so a test is the only way to know your level. The EPA recommends fixing any home at or above 4.0 pCi/L.
Watch: “Hi, I’m Radon. I’ve Been Living in Your Basement.” on YouTube
Indianapolis radon companies compared
At a glance
| Company | Google rating | Google reviews | Years in business | BBB | Other vetting | Based in |
|---|---|---|---|---|---|---|
| Healthy Radon Solutions | 4.9–5.0 | 400+ across our profiles | 2 (founded 2024) | A+, accredited (parent company) | Neighbor Serve vetted | Carmel |
| Safe Home Inspections & Safe Air Radon | 5.0 | 434 | 8 | Not accredited | — | Noblesville |
| Great Lakes Radon | 5.0 | 128 | 25+ (Google listing) | No Indiana profile found | — | Indianapolis |
| Anderson Radon and Vapor Services | 5.0 | 76 | 8 | A+, accredited | — | Indianapolis |
| Radon Environmental Inc. | 4.6 | 107 | 38 | Not accredited | — | Carmel |
| SWAT Environmental | No local profile | — | 38 | Not accredited | — | National |
Pricing, guarantees and services
| Company | Published prices | Warranty or guarantee | Insurance stated | Financing stated | Speed stated | Certification shown |
|---|---|---|---|---|---|---|
| Healthy Radon Solutions | Test $169; mitigation $1,200–$2,400 | Below 4.0 pCi/L; lifetime workmanship; fan maker’s warranty | Not stated | Not stated | Report the day the monitor is picked up; one-day install | NRPP #115094-RMP, #115198-RMS |
| Safe Home Inspections & Safe Air Radon | No | Not stated | Yes | Not stated | Not stated | “Licensed” |
| Great Lakes Radon | No | Below 4.0 pCi/L; lifetime workmanship; 5-year fan (maker) | Not stated | Not stated | “Quick installation” | NRPP, AARST |
| Anderson Radon and Vapor Services | No (free quotes) | Not stated | Yes | Not stated | Not stated | Not stated |
| Radon Environmental Inc. | No (free estimates) | Not stated | Not stated | Cash, check, card | Not stated | NRPP |
| SWAT Environmental | No | Not stated | Yes | Not stated | Not stated | State licensure |
Data as of November 6, 2026, from each company’s website, Google Business Profile and BBB profile. Years in business are from BBB unless noted. “Not stated” means we couldn’t find it on the company’s website.
Our methodology
Which companies made the list: we chose six companies from Google search and map results for radon mitigation in Indianapolis on November 6, 2026, focusing on companies that list radon mitigation, not testing alone. Other companies serve the area too.
What we checked for each one, using only public sources:
| Factor | Where it came from |
|---|---|
| Google rating and review count | Google Business Profile |
| What reviewers said | Newest 41–80 Google reviews per company |
| Years in business | BBB profile, or the company’s listing if it has no BBB profile |
| BBB rating and accreditation | bbb.org |
| Licensing and certification | Indiana license search; NRPP |
| Insurance | Company website |
| Services offered | Company website |
| Published prices | Company website |
| Warranty or guarantee | Company website |
| Financing | Company website |
| Speed and urgent availability | Company website and reviews |
| Service area | Company website |
Why Healthy Radon Solutions ranks #1
Healthy Radon Solutions is the only company on this list that publishes all of the following:
- Prices posted: $169 for a test and $1,200–$2,400 for most mitigation systems.
- Written guarantee: below 4.0 pCi/L, plus a lifetime workmanship guarantee. Great Lakes Radon also publishes one.
- Testing method: a 48-hour continuous radon monitor with hourly readings and tamper detection. The report arrives the day the monitor is picked up.
- Certification you can check: NRPP numbers published with a verification link.
- Accredited and vetted: BBB A+ accredited (through parent company Healthy Interior Solutions) and Neighbor Serve vetted.
Healthy Radon Solutions was founded in 2024, so several companies on this list have been around longer.
The best radon companies in Indianapolis for 2027
1. Healthy Radon Solutions
At a glance: 400+ Google reviews across our profiles · Founded 2024 · BBB A+ accredited · Neighbor Serve vetted · Carmel, serving Indianapolis and Hamilton County · Test $169 · Mitigation $1,200–$2,400 · Guaranteed below 4.0 pCi/L
We’re BBB A+ accredited through our parent company and vetted by Neighbor Serve, an Indianapolis home services club whose vetting starts with a nomination from an already-approved contractor.
Healthy Radon Solutions is the radon team of Healthy Interior Solutions, a family-owned company in Fishers. It handles testing, mitigation, fan replacement and repairs on systems another company installed.
- Testing: an Airthings Corentium Pro continuous monitor runs for 48 hours in closed-house conditions, recording hourly readings and flagging tampering. You get the report the same day the monitor is picked up.
- Mitigation: basement, crawl space and combination systems, most installed in one day. Price depends on the foundation, the sump, pipe routing and where the pipe can exit.
- Results: every system gets a post-mitigation test. Customers have reported results below 1.0 pCi/L.
- Guarantee: below 4.0 pCi/L, a lifetime workmanship guarantee and the fan maker’s warranty.
- Certification: NRPP measurement #115094-RMP and mitigation #115198-RMS, verifiable on NRPP.
Real Healthy Radon Solutions installs:
What customers say: one seller’s buyer inspection found high radon, and the post-mitigation result came back under 1.0 pCi/L. A listing agent wrote that the team “completed a last-minute mitigation installation” and delivered results “in time for the closing table.”
Schedule a radon test → Get a mitigation quote →
Best for: homeowners who want to know the price before anyone visits, and buyers or sellers who need a test and a fix before a closing date.
2. Safe Home Inspections & Safe Air Radon
At a glance: 5.0 on Google (434 reviews) · Noblesville · In business since 2018 · BBB: not accredited · Prices not published
A home inspection company that also offers radon testing and mitigation in Indianapolis and Hamilton County.
Considerations: most of its public reviews are about home inspections, and few mention radon work.
3. Great Lakes Radon
At a glance: 5.0 on Google (128 reviews) · Indianapolis office, also operates in Michigan · 25+ years in business per its Google listing · Prices not published
Installs and repairs radon mitigation systems and sump pumps. Its website lists a guarantee below 4.0 pCi/L, a lifetime workmanship warranty and the fan maker’s 5-year warranty.
Considerations: pricing and testing services aren’t listed on its website.
4. Anderson Radon and Vapor Services
At a glance: 5.0 on Google (76 reviews) · Indianapolis · In business since 2018 · BBB A+, accredited · Prices not published
An owner-operated company offering radon testing and mitigation, chemical vapor mitigation and crawl space vapor barriers in seven central Indiana counties.
Considerations: certification and warranty terms aren’t listed on its website.
5. Radon Environmental Inc.
At a glance: 4.6 on Google (107 reviews) · Carmel · In business since 1988 · BBB: not accredited · Free estimates
NRPP certified, offering radon testing and mitigation for homes, multifamily and commercial buildings.
Considerations: public reviews mention some installation hiccups and trouble reaching the office.
6. SWAT Environmental
At a glance: national company · In business since 1988 · BBB: not accredited · Prices not published
A national radon mitigation company that serves Indiana through local technicians.
Considerations: pricing and warranty terms aren’t listed on its website, and we didn’t find a local Google profile with reviews.
How a radon mitigation system works
Most radon mitigation systems work the same basic way: a fan pulls radon from under the foundation through a PVC pipe and vents it outside, above the roofline. The setup varies with the house, including the foundation, whether there’s a sump or a crawl space, and where the pipe can run. A follow-up test after the install shows how far the level dropped.
Radon FAQ for Indianapolis homeowners
How much does radon mitigation cost in Indianapolis? Healthy Radon Solutions charges $1,200–$2,400 for most homes. The other five companies quote case by case.
Is 4.2 pCi/L really high? It’s above the EPA’s 4.0 action level, so the EPA recommends fixing it. The EPA also suggests considering mitigation between 2 and 4.
My home monitor jumps from 2 to 5 day to day. Which number is right? Radon changes hour to hour with weather and how the house is used. A home monitor is useful for trends, while a professional test is run in closed-house conditions.
My new build already has a radon pipe. Am I covered? Not necessarily. Many new homes have a passive pipe with no fan, which often doesn’t lower radon enough. A test shows whether it does, and a fan can be added to the existing pipe.
Can radon be fixed before closing? Usually, if it’s booked quickly. It helps to mention the closing date on the first call.
Do homes in Indianapolis need testing, or just Hamilton County? The EPA recommends testing every home regardless of zone, and two houses on the same street can test very differently.
Get a radon test from Healthy Radon Solutions
Get a radon test → $169 · 48-hour continuous monitor · Indianapolis and Hamilton County
Sources
- Indiana Department of Health, radon information for homeowners
- Indiana professional license search
- EPA, Indiana radon zone map
- Healthy Radon Solutions, radon testing, radon mitigation
- Great Lakes Radon, Indianapolis and its hiring guide (warranty terms)
- Radon Environmental Inc. and BBB profile
- Anderson Radon and Vapor Services and BBB profile
- Safe Home Inspections & Safe Air Radon and BBB profile
- SWAT Environmental and BBB profile (Indianapolis)
- Google Business Profiles and Google reviews, pulled November 6, 2026