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Connecticut Radon Information

Connecticut Radon Program:

Radon Website: Website
Radon Contact: Francesca Provenzano
Active Radon Program: Yes
Require License for Radon Professionals: Yes

Connecticut Radon Levels

Connecticut has a user submitted radon level of 7.58. This is based on data submitted from visitors on our site. Learn more here.

EPA Radon Levels

Connecticut has 8 counties and 4 (50%) have been assigned Zone 1 counties by the EPA. Zone 1 counties have the highest potential to have homes test higher than 4 pCi/L. Connecticut's state radon zone average is 1.63, which is the average of all county zone ratings the EPA has assigned the state, ranking it 19 among all states.

The radon levels in the state of Connecticut are remarkably sporadic. There are quite a few areas in the state where the levels are above average and others where the levels are low or nonexistent. Regardless, there’s an increased risk for all homeowners, which is why we recommend testing exposure levels at least twice a year.


Connecticut Radon Mitigation and Testing

Need your home tested for radon? Already know you have high levels and need a radon reduction system installed? Finding qualified Radon professionals can be difficult, but we've put together a list of Connecticut contractors to help you save time.

Connecticut Radon Mitigation

We have compiled a list of qualified radon mitigation contractors.
Find Radon Mitigation Contractors here

Connecticut Radon Testing

Need your home or office tested for Radon? We have compiled a list of qualified radon testing contractors.
Find Radon Testing Contractors here


Connecticut Radon Contractor License Information

Does Connecticut require contractors to be licensed? Yes.

What are the licensing requirements? The requirements are as follows:

  1. Attend and complete an approved qualification course.
  2. Take and pass the national certification examination from the NRPP or NRSB.
  3. Submit national certification application.
  4. Submit an application to the Department of Consumer Protection for a Connecticut Home Improvement Contractor Registration.
  5. Fill out the Connecticut Department of Health Residential Mitigation Service Provider application.
  6. For a more detailed list of instructions visit the official Connecticut page.


Connecticut Radon Real Estate Requirements

Does the state of Connecticut require radon testing for all real estate transactions? No

However both the state of Connecticut and the EPA recommend that a home or residence should be tested before a real estate transaction is carried out. Even though Connecticut does not require radon testing, we certainly recommend you have a test performed before you purchase a home. If you decide to perform a test after and find elevated levels, there is no reason to panic. Connecticut radon mitigation is not expensive compared to the dangers and a system can be implemented in a relatively short period of time.


Connecticut Radon Map

Map of Connecticut Radon Levels

Zone 1 (1): Potential for radon levels above 4 pCi/L according to EPA
Zone 2 (2): Potential for radon levels between 2 pCi/L and 4 pCi/L according to the EPA
Zone 3 (3): Lowest EPA level with expected radon levels at or below 2 pCi/L
Disclaimer: It is strongly recommended that all households, schools and office spaces test radon levels individually. The EPA Radon Zone data is not an indicator of individual test results, but a guideline for strategic planning. Toxic radon levels can be found in all counties, regardless of their zone rating. While we make efforts to keep this information up to date, it is derived from third­party sources which may not be accurate or reflect the most current statistics.


About Connecticut

Connecticut is the third least expansive in terms of size, and the 29th most populous. Of course, it also happens to be the fourth most densely populated state in the country.


Browse The National Radon Directory by City

Amston
Andover
Ansonia
Ashford
Avon
Baltic
Bantam
Barkhamsted
Beacon Falls
Berlin
Bethany
Bethel
Bethlehem
Bloomfield
Bolton
Branford
Bridgeport
Bridgewater
Bristol
Broad Brook
Brookfield
Brooklyn
Burlington
Canaan
Canterbury
Canton
Canton Center
Centerbrook
Chaplin
Cheshire
Chester
Clinton
Colchester
Colebrook
Collinsville
Columbia
Cornwall Bridge
Cos Cob
Coventry
Cromwell
Danbury
Danielson
Darien
Dayville
Deep River
Derby
Durham
East Berlin
East Canaan
East Granby
East Haddam
East Hampton
East Hartford
East Hartland
East Haven
East Killingly
East Lyme
East Windsor
Eastford
Easton
Ellington
Enfield
Essex
Fairfield
Falls Village
Farmington
Gales Ferry
Gaylordsville
Gilman
Glastonbury
Goshen
Granby
Greenwich
Groton
Guilford
Haddam
Hamden
Hampton
Hartford
Harwinton
Hebron
Higganum
Ivoryton
Jewett City
Kent
Killingworth
Lakeside
Lakeville
Lebanon
Ledyard
Litchfield
Madison
Manchester
Mansfield Center
Marlborough
Meriden
Middlebury
Middlefield
Middletown
Milford
Monroe
Montville
Moodus
Moosup
Morris
Mystic
Naugatuck
New Britain
New Canaan
New Fairfield
New Hartford
New Haven
New London
New Milford
New Preston Marble Dale
Newington
Newtown
Niantic
Norfolk
North Branford
North Canton
North Franklin
North Granby
North Grosvenordale
North Haven
North Stonington
North Windham
Northfield
Northford
Norwalk
Norwich
Oakdale
Oakville
Old Greenwich
Old Lyme
Old Saybrook
Orange
Oxford
Pawcatuck
Plainfield
Plainville
Plantsville
Plymouth
Pomfret Center
Portland
Preston
Prospect
Putnam
Quaker Hill
Quinebaug
Redding
Ridgefield
Riverside
Riverton
Rockfall
Rocky Hill
Roxbury
Salem
Salisbury
Sandy Hook
Scotland
Seymour
Sharon
Shelton
Sherman
Simsbury
Somers
South Glastonbury
South Kent
South Windham
South Windsor
Southbury
Southington
Southport
Stafford Springs
Stamford
Sterling
Stonington
Storrs Mansfield
Stratford
Suffield
Taftville
Tariffville
Terryville
Thomaston
Thompson
Tolland
Torrington
Trumbull
Uncasville
Unionville
Vernon Rockville
Voluntown
Wallingford
Washington
Washington Depot
Waterbury
Waterford
Watertown
Weatogue
West Cornwall
West Granby
West Hartford
West Hartland
West Haven
West Simsbury
West Suffield
Westbrook
Weston
Westport
Wethersfield
Willimantic
Willington
Wilton
Windham
Windsor
Windsor Locks
Winsted
Wolcott
Woodbridge
Woodbury
Woodstock
Woodstock Valley
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