Understanding Bid Requirements

​A guide to getting a standards‑based mitigation bid
​A radon mitigation bid is more than a number — it’s a technical plan for how a contractor will reduce soil gas entry in your home. Because every house behaves differently, a reliable bid must be based on diagnostics, not assumptions. The steps a contractor takes before giving you a price determine whether the system will perform as intended.
Here are the required steps:
1.  Require on-site diagnostics before developing a bid.    
​​A standards‑based bid starts with an in‑person diagnostic evaluation. These steps ensure the contractor understands how your home behaves and what the system must accomplish.
  • A Certified Radon Mitigation Specialist (RMS) must come to the property in person to develop the bid.
  • The RMS should inspect the foundation and document conditions that affect system design.
  • The RMS should evaluate soil and sub‑slab conditions as part of the bid process.
  • The RMS must conduct pressure field extension (PFE) testing before preparing the bid. A bid without PFE is not acceptable.
  • The RMS should identify and explain soil gas entry points and how the system will address them.
  • The RMS should explain routing options, fan placement, and discharge location before giving a price.
  • The RMS should check combustion appliances and explain any safety steps needed.
​Why it matters:
​A mitigation system only works when it’s designed around the actual behavior of your home. Diagnostics protect you from guesswork, unnecessary costs, and systems that fail to reduce radon.
2. What to require in the written bid
​A written bid should clearly show how the contractor plans to reduce radon and what performance you can expect. It should also document the contractor’s qualifications.
  • The bid should list the fan model, suction point count, pipe diameter, and system type, all based on diagnostics.
  • The bid should include a detailed system design, diagnostic results, performance expectations, and warranty.
  • The bid should include a post‑mitigation CRM test performed by a certified Radon Measurement Field Technician (RMFT).
  • The company should provide proof of a valid Utah contractor license, insurance, and radon certification in writing.
​Why it matters:
​A clear written bid protects you from surprises, ensures the system is built to standards, and gives you documentation you can rely on if questions arise later.
3. How to use this guide
​Use this checklist before accepting any mitigation bid. If a contractor skips diagnostics, avoids questions, or provides a price without evaluating your home, that’s a sign to keep looking. A standards‑based bid gives you confidence that the system will work — and that your investment is grounded in real data.
​Looking for more personalized support? The Radon Navigator™ program offers free, one-on-one guidance from trained volunteers who understand testing, bids, contracts, and mitigation.