Why You Should Always Ask for a Written Radon Quote Before Mitigation

When I bought my first home in York County back in the late 1990s, radon was something I had heard about but never really studied. The real estate agent handed me a pamphlet from the EPA, and I remember thinking, "Well, that's a problem for someone else." A few years later, when I had to sell that same house, the buyer's radon test came back at 14.7 pCi/L. That number changed everything.

I called three radon mitigation companies. Two of them gave me a rough estimate over the phone, and the third sent someone out who walked around my basement, pointed at the sump crock, and said, "Probably around twelve hundred, maybe more if we hit rock." Not one of them offered me a written radon quote. I went with the guy who seemed the most confident, and it turned into a nightmare of change orders, extra charges, and a radon fan that was undersized for the house. That experience taught me a lesson I still carry: if you are serious about fixing your radon level, you get everything in writing before anyone breaks ground.

The Difference Between a Verbal Estimate and a Written Radon Quote

A verbal estimate might sound reassuring when you are on the phone, but it is basically a guess. The person on the other end has not seen your foundation, your slab thickness, or the layout of your basement. They do not know if you have a gravel base under the concrete or if you are sitting on clay. A written radon quote, by contrast, comes after someone has actually looked at the house. It specifies the scope of work, the equipment to be used, and the total cost. It is a contract, not a conversation.

In my experience, the companies that offer a written radon quote without hesitation are the ones that take their work seriously. They have already thought through the variables. They know whether they will need a radon pump for active soil depressurization or if a simpler sub-slab depressurization setup will do the job. They have calculated the required static pressure for the radon fan and the length of the radon vent pipe. That level of detail does not happen by accident. It comes from doing the work over and over again.

What a Proper Written Radon Quote Should Include

Over the years, I have looked at a lot of these documents. Some are thorough. Some are a single line on a napkin. Here is what I expect to see in a legitimate written radon quote from a certified radon mitigator:

• A clear description of the radon system design, including the type of depressurization (typically active soil depressurization for most houses in Pennsylvania) and the location of the suction point.
• The make and model of the radon fan, along with the warranty terms. Not all radon fans are built the same, and a cheap unit can fail in a few years.
• A breakdown of labor, materials, and any permitting or post-installation radon test fees. If the company charges extra for a follow-up radon detector reading, that should be in writing.
• A timeline for the work and a clause about what happens if unexpected conditions are found, like a buried rock or an unsealed sump pit.
• The guaranteed post-mitigation radon level, which should be below the EPA action level of 4.0 pCi/L, and often as low as 2.0 pCi/L with a good system.

If any of these items are missing from the written radon quote, I would ask why. A reputable radon mitigation company wants you to understand what you are paying for. Ambiguity benefits no one.

How a Written Radon Quote Protects You After the Work Is Done

Radon mitigation is not like painting a room where you can see the result immediately. The radon gas is invisible, and the only way to confirm the system is working is to run a radon test after installation. If your radon level stays high and you only have a verbal agreement, you have very little leverage. The company can claim they never guaranteed a specific number, or that the test was done wrong, or that the radon barrier was compromised after they left.

A written radon quote changes that dynamic. It is a record of what was promised. If the contract says the post-mitigation radon level will be below 4.0 pCi/L and your radon detector shows 5.2 pCi/L, you have a clear path to a remedy. The company has to come back and fix the system, whether that means adjusting the radon fan speed, sealing additional cracks in the slab, or installing a secondary suction point. Without that piece of paper, you are left hoping for goodwill.

I once helped a neighbor in York County deal with a radon remediation contractor who had installed a system but never returned for the final test. The house still smelled musty in the basement, and the homeowner was worried. Because he had a written radon quote that specified a follow-up radon test and a performance guarantee, he was able to hold the contractor accountable. They came back, found that the radon vent pipe had a loose coupling, and fixed it at no extra charge. That story ends well, but it only ended well because the terms were written down.

The Cost of Skipping the Written Radon Quote

I know a family near Red Lion who went with the cheapest bid they got over the phone. The installer showed up, drilled a hole in the slab, dropped in a suction point, and ran a pipe straight out the side of the house. The radon fan was mounted on an exterior wall with no weather cover. Within two winters, the fan seized up from moisture. The homeowner called the company, but the owner had retired and the number was disconnected. They ended up paying a second time to have a proper system installed by a certified radon mitigator. A written radon quote would not have prevented the business from closing, but it would have given them documentation about what was installed, which made the second job easier.

There is also the question of liability. If a contractor damages your foundation, cracks your driveway, or leaves a mess, a written radon quote should include language about site cleanup and damage responsibility. Verbal promises vanish the moment the crew drives away. A written quote stays in your file.

How to Evaluate a Written Radon Quote

Reading a radon mitigation proposal is not complicated, but it helps to know a few basics. Look for the specific method being used. Sub-slab depressurization is the gold standard for slab-on-grade homes, which are common in Pennsylvania. If the quote mentions a radon barrier or a vapor barrier, ask whether that is part of the standard install or an add-on. Check the warranty on the radon fan and the labor. Most quality fans carry a five-year warranty, and a good contractor will back their work for at least a year.

Ask about the post-installation test. Some companies include a radon test in the written radon quote. Others charge separately. If they use a continuous radon detector for the test, that is generally more reliable than a short-term charcoal test, but either is acceptable as long as it follows EPA protocols. And make sure the quote specifies who pays for the test if the result is above the target level. The answer should be the contractor.

Dan Jenkins, who runs a radon mitigation company in York County, has a reputation for putting everything in writing before he starts. I have seen his written radon quote template, and it is detailed without being confusing. He lists the components, the estimated timeline, and the guaranteed outcome. That kind of transparency is rare in the home services world, and it is worth looking for when you are choosing a contractor.

Final Thoughts on Getting a Written Radon Quote

Radon gas is a serious health concern. The EPA estimates that radon causes thousands of lung cancer deaths each year. Mitigating it is not an area where you want to cut corners or rely on handshake deals. A written radon quote is not just a piece of paper. It is your assurance that the work will be done correctly, that the materials will be appropriate for your home, and that you have recourse if something goes wrong.

If a contractor hesitates to give you a written radon quote, that is a red flag. Move on to the next one. There are plenty of qualified certified radon mitigators in Pennsylvania who understand that clarity and accountability build trust. Your home and your health are worth the extra five minutes it takes to read and sign a proper proposal.