Radon Mitigation Pros in New Orleans, LA

Finding a qualified radon mitigation contractor in New Orleans is genuinely harder than it should be — the local market is thin, certifications vary wildly, and most homeowners don’t know what to ask until they’ve already hired the wrong person. This directory exists to cut through that noise: every listing has been vetted for active NRPP or NRSB credentials, so you’re not starting from scratch.

How to Choose a Radon Mitigation Contractor in New Orleans

• Verify the credential, not just the claim. Louisiana doesn’t license radon contractors at the state level, which means anyone can hang a shingle. The only meaningful credential check is NRPP or NRSB certification — both maintain searchable public databases. A contractor who can’t give you their certification number is a red flag.

• Ask whether they hold separate measurement and mitigation credentials. These are distinct certifications. The contractor who tests your home shouldn’t be the same person financially motivated to sell you a $1,200 mitigation system — or if they are, they need to carry both credentials and disclose the conflict.

• Understand how New Orleans construction affects radon entry. Much of the city sits on raised pier-and-beam foundations and crawlspaces rather than basements or slab-on-grade — which changes where radon infiltrates and how a sub-slab depressurization system gets configured. Ask your contractor specifically how they handle pier-and-beam homes and whether they’ve worked in historic structures with limited access.

• Get a post-mitigation test in writing. Any reputable contractor will include a follow-up measurement after installation to confirm levels dropped below 4 pCi/L. If that’s not in the contract, negotiate it in — or find someone else.

• Check that the system comes with a warranty. Standard ASD systems carry a 1-year labor warranty at minimum; components (fan, PVC stack) should be warrantied separately. Get the specifics on paper.

Pro Tip: If you’re buying or selling a home in New Orleans, your real estate agent may refer you to a contractor they “always use.” That referral is a relationship, not a quality guarantee. Run the name through the NRPP database yourself before you book.

What to Expect

Testing runs $150–$400 depending on whether you use a short-term or long-term test kit and whether a certified professional places and retrieves it. If results come back above 4 pCi/L, a full active soil depressurization install typically runs $800–$1,500 in the New Orleans market, with most single-family homes landing in the $900–$1,200 range. Installation usually takes one day; post-mitigation testing follows 24–48 hours later.

Reality Check: Some contractors quote a low installation price and then charge separately for the diagnostic, the post-test, and the warranty extension. Get a line-item quote upfront. The number that matters is the all-in cost to achieve confirmed levels below 4 pCi/L — not the teaser price on the website.

Local Market Overview

Louisiana sits in EPA Radon Zone 2 and Zone 3 across most parishes, meaning predicted average indoor radon levels are moderate rather than high — but that doesn’t mean individual homes test clean, particularly older stock with compromised foundations or new additions built over sealed crawlspaces. New Orleans’s notoriously variable soil conditions (river delta clay, fill material, and subsidence-prone ground) mean radon pathways can be unpredictable, and the city’s real estate market — where pre-1950 doubles and shotgun doubles change hands constantly — generates steady demand for testing during transactions even when buyers and sellers assume the risk is negligible.