Radon Mitigation

Reduce radon at the source

A properly engineered mitigation system intercepts radon at your foundation and vents it safely away — before it reaches the air your family breathes.

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How it works

Sub-slab depressurization, done properly

The proven method for reducing radon is sub-slab depressurization: a sealed pipe draws radon from beneath your foundation slab and a quiet fan vents it above the roofline, where it disperses harmlessly. The difference between an average install and a great one is diagnostics — and that's where we focus.

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1. Diagnose

We assess your home's foundation, sub-slab conditions and airflow to design the right system — not a one-size-fits-all guess.

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2. Install

Clean, discreet installation of the pipe, fan and sealing. We respect your home and keep the system as unobtrusive as possible.

3. Verify

We re-test after installation and give you documented proof the level has dropped — your guarantee it actually worked.

The Onyx standard

Rock-solid, built into your foundation

  • C-NRPP certified mitigation
  • Diagnostics-driven design — no guesswork
  • Quiet, energy-efficient fans
  • Clean, discreet finish
  • Post-install verification testing included

Works on tough homes too

Older basements, dirt crawlspaces, additions, unusual layouts — these are where amateur installs fail. Our diagnostics-first approach is built for exactly these challenges.

Bring your radon down

Tested high? Let's fix it properly — and prove it. Request a free quote.

Request a free quote