Can you install your own radon mitigation system in Pennsylvania?

Published Oct 23, 2026 · 1:00

Pennsylvania lets homeowners install their own radon system, but anyone paid to do it must be DEP-certified. What DIY costs, where DIY systems go wrong, and what a certified installer adds.

Chapters

  1. 0:00 Yes, in your own house
  2. 0:10 Anyone paid must be DEP-certified
  3. 0:20 Plumbers and handymen cannot do it
  4. 0:30 DIY parts: $400 to $700, and the usual mistakes
  5. 0:40 What a certified installer adds: $1,200 to $1,800
  6. 0:50 Check the DEP mitigation number

Transcript

0:00 Yes, you can legally do it yourself. Pennsylvania lets homeowners install a radon mitigation system in their own house, with no certificate required.

0:10 A nineteen eighty-seven Pennsylvania law says anyone paid to test or mitigate radon must be certified by the DEP.

0:20 So a plumber, handyman, HVAC company or general contractor cannot legally do your install without a mitigation certification.

0:30 Parts cost four to seven hundred dollars, yet DIY systems often pick the wrong suction point or vent below the eave.

0:40 A certified installer adds a diagnostic test, a guaranteed result and paperwork home buyers accept, for twelve to eighteen hundred dollars.

0:50 Ask for their DEP mitigation number and check it's current. Find certified contractors at Radon Mitigation In York dot com.

Key points

  • Homeowners may install a radon mitigation system in their own house in Pennsylvania. No certificate is needed.
  • Under a 1987 Pennsylvania law, anyone paid to test for radon or mitigate it must be certified by the DEP. A plumber, handyman, HVAC company or general contractor without a mitigation certification cannot legally do the install for you.

DIY or certified?

DIYCertified installer
Cost$400 to $700 in parts$1,200 to $1,800 installed
Diagnostic testNoYes
Guaranteed resultNoYes
Paperwork buyers acceptNoYes

The common DIY mistakes are choosing the wrong suction point and venting below the eave.

Before you hire

Ask for the installer's DEP mitigation certification number and check that it is current.

Find a contractor in York

Compare DEP-certified radon mitigation companies serving York, or read the full DIY vs certified guide.

Read the full guide: DIY radon mitigation vs a DEP-certified contractor in Pennsylvania

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Call (223) 21-RADON