1. Why Your Choice of Company Matters
A radon mitigation system is only as good as its installation. The same basic technology, a fan pulling air from beneath your foundation, can produce dramatically different results depending on how it is designed and installed. A poorly placed suction point, an undersized fan, or a sloppy pipe route can mean the difference between reducing radon by 50% and reducing it by 99%.
Unlike many home improvement projects, radon mitigation is not something you can easily evaluate by looking at it. The system might look fine on the outside while performing poorly because the installer chose the wrong suction point location or did not seal the slab penetration properly.
This is why choosing the right company matters so much. You are paying for expertise and experience, not just parts and labor. A qualified contractor will assess your home's unique characteristics and design a system that actually works.
2. Certifications and Credentials to Look For
Georgia does not require a state license for radon contractors. This means anyone can technically advertise radon mitigation services. That makes voluntary certifications an important way to distinguish qualified professionals from amateurs.
When evaluating a radon company, look for these credentials:
NRPP Certification
The National Radon Proficiency Program (NRPP) is one of the two major certification bodies. NRPP-certified professionals have passed proficiency exams, maintain continuing education, and follow established standards of practice. You can verify certification on the NRPP website.
NRSB Certification
The National Radon Safety Board (NRSB) is the other primary certification body. Like NRPP, it requires proficiency testing and continuing education. Either NRPP or NRSB certification is a strong indicator of a qualified contractor.
Be Careful With Certification Claims
Some companies may claim to be "EPA-certified." The EPA does not certify radon companies or professionals. If a company makes this claim, it is either misleading or shows a lack of knowledge about the industry. Similarly, since Georgia does not license radon contractors, be cautious of any company claiming to be "state-licensed" for radon work specifically.
3. Insurance, Experience & Guarantees
Beyond certifications, there are several practical factors that separate reliable companies from fly-by-night operations.
Liability Insurance
Any reputable radon company should carry general liability insurance. This protects you if something goes wrong during the installation. Ask for proof of insurance before work begins. A company that cannot produce a certificate of insurance is a significant risk.
Track Record and Experience
How long has the company been installing radon systems? How many systems have they installed? Experience matters because every home is different. A contractor who has installed hundreds of systems has encountered and solved a wide variety of challenges. Ask for references or check online reviews.
Written Guarantee
A confident contractor will guarantee their results in writing. Look for a guarantee that the system will reduce radon below 4 pCi/L (or ideally below 2 pCi/L). If the system does not achieve the guaranteed level, the company should come back and modify the system at no additional charge.
Equipment Warranty
The radon fan is the mechanical heart of the system. Quality fans come with manufacturer warranties of 5 years or more. Ask what brand of fan the company uses and what the warranty covers. A 5-year warranty is standard for quality installations.
4. What a Good Quote Should Include
When you receive a quote for radon mitigation, it should be detailed enough for you to understand exactly what you are getting. A one-line quote that just says "Radon system: $1,800" is not sufficient. Here is what a thorough quote should cover:
- System design: Where the suction point(s) will be located, how the pipe will be routed, and where it will exhaust
- Fan specifications: The brand, model, and power level of the fan
- Materials: Type and size of piping (typically 3-inch or 4-inch PVC)
- Visual impact: How the exterior pipe run will look and options for minimizing visual impact
- Post-installation testing: Whether a follow-up radon test is included
- Performance guarantee: The radon level the company guarantees in writing
- Warranty terms: What is covered and for how long
- Permits: Whether any local permits are needed and who handles them
A company that takes the time to provide a detailed quote is usually one that takes their work seriously. If a contractor seems rushed or vague during the quoting process, that may reflect how they approach the installation itself.
5. Red Flags to Watch For
Knowing what to avoid is just as important as knowing what to look for. Here are warning signs that should give you pause:
No On-Site Assessment
A company that quotes a price without visiting your home (or at least reviewing photos and details) cannot properly design a system. Every home is different, and the quote should reflect your specific situation.
Pressure to Decide Immediately
While radon is a health concern, it is not an emergency that requires same-day decisions. A company that pressures you to sign on the spot or uses aggressive scare tactics is prioritizing their sales over your interests.
Claims of EPA Certification
The EPA does not certify radon companies. A company that claims to be "EPA-certified" is either being misleading or does not understand their own industry well enough to represent it accurately.
Extremely Low Pricing
If a quote comes in far below others (say $600 when everyone else is $1,500 to $2,000), ask why. Common corner-cutting includes using inferior fans, skipping slab sealing, poor pipe routing, or no post-installation testing. The cheapest system is rarely the best value.
No Written Guarantee
If a company will not guarantee their work in writing, that tells you they are not confident in their ability to solve the problem. A reputable contractor stands behind their installations.
No Post-Installation Test
How do you know the system works if nobody tests after installation? A good company includes or strongly recommends a post-mitigation radon test to verify the system is performing as designed.
6. Questions to Ask Before Hiring
Here is a checklist of questions to ask any radon company you are considering. Their answers will tell you a lot about their professionalism and expertise.
- Are you NRPP or NRSB certified? Can I verify your certification?
- Do you carry general liability insurance?
- How many radon systems have you installed?
- What brand and model of fan do you use?
- Do you provide a written guarantee? What level do you guarantee?
- Is a post-installation radon test included?
- What happens if the system does not reduce radon below the guaranteed level?
- Where will the pipe be routed on the exterior of my home?
- How will the system be monitored (pressure gauge, electronic monitor)?
7. Comparing Quotes: Price vs. Value
Getting two or three quotes is smart. But comparing them purely on price is a mistake. Here is a better framework for evaluating your options:
Think of it this way: a mitigation system that costs $1,800 and reduces radon by 98% with a 5-year warranty is a far better investment than a $1,200 system that reduces radon by 70% with no warranty. The second system may require additional work, costing you more in the long run.
The Value Equation
A properly installed radon system should last 15 to 20 years with minimal maintenance (just replacing the fan every 7 to 10 years). At $2,000 for the initial installation, that works out to roughly $100 to $130 per year of protection. The difference between a $1,500 quote and a $2,000 quote is about $33 per year over 15 years. That small difference is not worth compromising on quality, warranties, or post-installation verification.
When comparing quotes, create a simple comparison chart. List what each company includes: fan brand, warranty length, performance guarantee, post-installation testing, and any extras. The company that provides the most complete package at a fair price is usually the best choice.
