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Top-Rated Radon detection and reduction specialists in Karnes City - Updated Nov 2026

Avatar for GreenWorks Inspections & Engineering
GreenWorks Inspections & Engineering
4.9(
277
)
Radon Gas - Testing

Serving Karnes City, TX and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

At GreenWorks, we know that buying, building, or investing in property is one of the biggest decisions of your life. You deserve absolute peace of mind and confidence in your investment. That’s why we’ve built the nation’s largest privately owned, non-franchise inspection and engineering company—serving with unmatched quality, speed, and care.\n\nUnlike most inspectors who only point out problems, GreenWorks provides clear answers, proactive solutions, and cost transparency. Every inspection includes a detailed walkthrough, a comprehensive report with photos, and a free repair estimator so you know exactly what deficiencies mean and how much they will cost to fix. From foundation mapping, plumbing, and HVAC checks to mold, asbestos, radon, and lead testing, our comprehensive services ensure no detail is missed.\n\nFor homeowners, we are your go-to partner from the first pre-pour on new construction to warranty inspections years later. For realtors, we keep deals moving forward with fast, accurate reports and communication your clients can trust. For commercial investors, we can inspect up to 900 units a day, delivering thorough PCAs, ESAs, and structural plans that keep feasibility studies on schedule. And for builders, we provide engineering-led quality assurance to make sure projects are built right the first time.\n\nFounded nearly two decades ago by CEO Harmony Brownwood, GreenWorks was created to raise the bar in an industry that too often settles for the bare minimum. Every inspector completes a rigorous training program—including structural engineering—before serving clients. Our team is backed by licensed engineers, cutting-edge technology, and a full support staff available 365 days a year.\n\nWhen you choose GreenWorks, you’re choosing more than an inspection. You’re choosing a long-term partner committed to safeguarding your property, protecting your investment, and giving you clarity at every step.

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

Response time1 day
Response rate100%
8 neighbors recently requested a quote
Avatar for Affordable Radon Services
Affordable Radon Services
4.7(
351
)
Radon Gas - Abatement

Serving Karnes City, TX and surrounding areas

In business since 2011

Free estimates

Warranties offered

"Recently I had radon mitigation system installed in my house. The job was done by Affordable Radon Services LLC. Very friendly workers Ken and Joe worked on my property. They did excellent job. The following test showed significant decrease at the radon level on the property. I am very happy that I hired this company and recommend for your needs."
Radon Mitigation System
Radon Mitigation System
Radon Mitigation System
Radon Mitigation System
3120 E Agritopia

+1

Response time1 day
Response rate87%
Recommended by96%of homeowners
Avatar for Clear Environmental Services, LLC
Clear Environmental Services, LLC
4.2(
15
)
Radon Gas - AbatementRadon Gas - Testing

Serving Karnes City, TX and surrounding areas

In business since 2013

Free estimates

Warranties offered

Clear Environmental offers quality and affordable demolition, asbestos testing, abatement and mold remediation. With our 18 years experience in the construction field, we are licensed and insured so you can rest assure that the job will be done right. Call us today to schedule an appointment. You can also email us any information on your project at [email protected].

Abatement
Abatement
Abatement
Abatement
Abatement

+7

Response time1 day
Recommended by91%of homeowners
Radon Detection and Reduction FAQs, answered by experts

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

Yes, many systems include warranties for performance. Confirm terms with your installer.

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

If your home has a sump pit, you can integrate it with a radon mitigation system. You can accomplish this by sealing the pump cover with an airtight lid that accommodates radon vent pipes and sump pump hoses. This allows the vent pipe to redirect the radon gas outside of your home.

The Karnes City, TX 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.