Radon Mitigation in Woburn, MA

A radon system in a Woburn triple decker is not the same job as one in a single-family ranch, and pricing it like one is how a homeowner ends up either overpaying or under-protected. The floor plan, the number of units sharing the foundation, and where the fan can vent without bothering a neighbor’s window all change the design before a single pipe goes in.

Massachusetts pricing, honestly

Most single-family installs run $1,950 to $2,250. Multi-unit buildings usually cost more, since a larger foundation footprint or multiple mitigation zones can mean more than one system. We will not know which applies to your building until we have measured it. The $50 test fee is credited toward the job if you move forward.

Massachusetts requires a certified installer

This is not optional and it is not a DIY project, radon mitigation design and install has to be done by someone certified for it. We hold that certification (RMS-113966) and carry the insurance to back the work.

Design changes with the building

A single-family slab gets one core hole, one pipe, one fan. A multi-unit building on a shared foundation sometimes needs the same setup, and sometimes needs a system for each mitigation zone if the sub-slab conditions are not uniform across the footprint. We test before we design, we do not assume one system fits a building it has not been measured for.

What we find in older Woburn basements specifically

A lot of the city’s older mill-era foundations are fieldstone or brick rather than poured concrete, and those foundations do not seal the same way a modern slab does. Sub-slab suction, the standard system, needs a reasonably continuous layer under the floor to pull air from. Where that is not the case, we sometimes run a sub-membrane system instead, sealing a membrane over an exposed dirt section and drawing from underneath that instead of the slab. We will tell you which one your basement actually needs once we have opened it up and looked.

What the number on a test actually means

Radon is measured in picocuries per liter, pCi/L. The EPA’s action level is 4.0: at or above that, the recommendation is mitigation. Below it, most homes do not need a system, though there is no fully safe level, just a point where the cost and disruption of mitigation becomes clearly worth it. A short-term test, 2 to 7 days with the house closed up, gives a fast screening number. A long-term test, 90 days or more, gives a more accurate annual average, because radon levels shift with season and how much a house is sealed up for heat. If your short-term number comes back close to 4.0 rather than well above or below it, that is when the long-term test earns its cost before you spend money on a system you might not need.

Massachusetts building age and testing

Woburn’s housing stock runs older, median year built 1970, and a lot of it has been through additions, finished basements, and other changes that were not there when the house was new. Every one of those changes affects how air moves through the lowest level, and how air moves is most of what determines a radon reading. That is part of why 603 tests before mitigating rather than mitigating on assumption: the same two houses on the same street, same age, can read very differently once you account for what has been done to each one since 1970.

Frequently asked questions

What a recent customer told us:

We had a great experience with 603 basement solutions and would highly recommend to anyone looking for a reliable company. Justin and Dillion were the team members who helped with our radon mitigation and they were both extremely professional throughout.

Jenna Chopak, 5 stars, Google review

Housing age: Census ACS 2023 5-yr (B25035). Radon action level and testing guidance: EPA. Review quoted verbatim, public Google review.