Kingston has the second-highest share of elevated radon results in this service area. Of 961 tests reported between 2015 and 2024, 233 came back at or above 4.0 pCi/L, and the town's highest recorded result was 121.7 pCi/L.
Kingston also turns over real estate steadily, which means most of the testing here happens on a deadline. That changes how the test gets run.
Massachusetts DPH publishes every radon test result reported in the state by town. Here is what 961 Kingston tests from 2015 through 2024 look like.
| Measure | Kingston, MA | What it means |
|---|---|---|
| Tests on record, 2015-2024 | 961 | The sample this table is built on |
| Median result | 2.2 pCi/L | Half of Kingston homes tested came in below this |
| Geometric mean | 2.3 pCi/L | The typical result, with outliers damped |
| Tests at or above 4.0 pCi/L | 233 (24.2%) | EPA says fix the house at this level |
| Tests between 2.0 and 4.0 | 30.2% | EPA says consider fixing |
| Tests below 2.0 | 45.6% | No action recommended |
| Highest single result on record | 121.7 pCi/L | One house, not the town, but it was somebody's house |
| Tests per 1,000 occupied homes | 180.6 | How thoroughly the town has actually been checked |
Source: Massachusetts Department of Public Health radon testing data, town-level export, 2015-2024.
Colonials near the center of town and newer subdivisions toward the bay sit on the same glacial till, and the test result tracks the foundation more than the build year. What separates Kingston work from the rest of the county is timing. Most calls come from a buyer, a seller or an agent with a date on the calendar.
We place continuous monitors that log hourly rather than charcoal canisters that mail to a lab. The monitor records closed-house compliance alongside the reading, so a seller cannot argue the windows were open and a buyer cannot argue they were not. Results land in 48 hours in a written report your attorney can attach.
When a Kingston test comes back high mid-deal, mitigation usually runs one day, and the retest that proves the number dropped runs another 48 hours. Four days from bad news to a clean document, if the call comes early.
The EPA Map of Radon Zones assigns Plymouth County to Zone 2, which predicts an average indoor screening level between 2.0 and 4.0 pCi/L. Barnstable, Bristol and Norfolk counties carry the same designation. Worcester, Middlesex and Essex are Zone 1.
The EPA prints a warning on the same map: it should not be used to decide whether an individual home gets tested, and all homes should be tested regardless of zone. The Kingston numbers in the table above show why. A county-wide prediction cannot tell you what is under one address.
Massachusetts does not license radon contractors. The state's own guidance points homeowners at professionals certified by NRPP or NRSB, and those two certifications are the only credential worth asking about. Ask for the number, not the logo.
An active system puts a fan in the vent stack, and wiring that fan is electrical work, so the Kingston wiring inspector is normally the one permit stop on a mitigation job. We pull it. Systems that vent above the roofline and discharge away from windows meet the EPA protocol the inspector is checking against.
State testing data says yes for a meaningful share of houses. Of 961 Kingston tests on record from 2015 through 2024, 24.2% came back at or above the EPA's 4.0 pCi/L action level, and another 30.2% landed between 2.0 and 4.0. The town median is 2.2 pCi/L.
Most single-family systems in this county run $1,200 to $2,500 installed, with a post-mitigation retest included. The price turns on foundation type and how many suction points the slab needs, which is why we quote in writing after seeing the house.
A short-term test needs a minimum of 48 hours under closed-house conditions. We use continuous monitors that log hourly, so a test placed Monday is reported Wednesday. Real estate deadlines get priority placement.
Nothing in Massachusetts law requires one, but radon testing is standard practice in home-sale inspections here, and buyers routinely ask for mitigation or a credit when a result comes back high. Testing inside the inspection window costs less than renegotiating after you own it.
Yes. The physical minimum is 48 hours of closed-house conditions, and we place monitors the day you call when the schedule allows. Mitigation adds about one working day, plus another 48 hours for the retest. Build in four to five days if you want a clean post-mitigation number before the walkthrough.
One call covers testing, mitigation, well-water treatment and system repair anywhere in Kingston and the rest of Plymouth County. Written quote first, retest after.
Sources: Massachusetts Department of Public Health radon testing data 2015-2024; EPA Map of Radon Zones, Massachusetts.
Radon Mitigation for Plymouth and Plymouth County. Test it. Fix it. Prove it's fixed.
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