HSW Radon Contractors, LLC

Your Radon & Water Treatment Specialist Call 1-866-787-2366

Radon Reduction for the Air

Custom designed soil gas systems to improve your home's air quality. Read More

Radon Reduction for the Water

Your homes well water may be outgasing high levels of radon gas.Read More

Water Treatment and Well Tanks

Expert water conditioning services to address a multitude of issues … white, green, red, and black staining. Read More

Radon Testing and Water Analysis

How safe is your homes air and drinking water? The only way to know is by testing…Read More


Reduction and Testing Services for Airborne and Waterborne Radon

HSW Radon Contractors, LLC is your full service radon reduction and testing company. In addition to radon removal from water, we offer comprehensive water treatment services to correct hardness, staining, odor, and potability issues. Both traditional and "green" technologies are utilized to achieve the highest quality water for your home.

The company was founded in 2001 and serves the State of Connecticut and portions of New York. We have a broad base of experience and have successfully mitigated residential properties, condo complexes, public schools, nursery schools, and commercial properties.

We are certified by the NEHA (National Environmental Health Association) through the National Radon Proficiency Program. This is your assurance that our company has demonstrated knowledge of radon mitigation techniques and follows proper protocol. We are also licensed by the State of Connecticut to perform radon mitigation for both air and well water.

We do not claim to be the largest or oldest mitigation company in Connecticut, however, we are confident that our quality and service is second to none. HSW Radon Contractors, LLC is committed in providing the most effective, reliable, and affordable systems that exceed customer expectations. Each system is thoughtfully laid out and installed with fine workmanship. Your satisfaction is always guaranteed.

Whether you need a new installation, a repair/modification to an existing system, or simply would like to order a radon test/water analysis, please give us a call.

Surgeon General Health Advisory

"Indoor radon is the second-leading cause of lung cancer in the United States and breathing it over prolonged periods can present a significant health risk to families all over the country. It's important to know that this threat is completely preventable. Radon can be detected with a simple test and fixed through well-established venting techniques." January 2005

Our Track Record for Airborne Radon Reduction

Radon Reduction Performance: 2006 - Present The graph to the left captures all mitigation work for airborne radon for the period of 2006 - present. The majority of systems we install will retest below the highly desirable target of 2 pCi/L. In fact, our overall average after mitigation is approximately 1.1 pCi/L vs. the EPA suggested action level of 4 pCi/L.

While every home and circumstance is different, a strong emphasis is placed on system design and installation to maximize the radon reduction. There has never been a home we couldn't fix.

Whether you need a new installation, a repair/modification to an existing system, or simply would like to order a radon test/water analysis, please give us a call.

Why We're the Contractor of Choice

  • Free consultation ... just give a call
  • 24-Hour testing response for real estate transactions - call for details
  • Free estimates with "up front pricing"
  • Rapid response available
  • Written and transferable warrantee
  • Guaranteed reduction results
  • Satisfaction Guaranteed
  • Professionally Core Drilled Holes
  • State Licensed and Insured
  • Certified by the National Environmental Health Association
  • "One stop" mitigation for both air and water
  • State of the art equipment during installation and measurement
  • We service our installations AND our competitors

Serving Litchfield, Fairfield, New Haven, Hartford, Middlesex, Tolland, New London, and Windham counties in Connecticut and Dutchess county in New York including:
Amenia, NY Andover, CT Ansonia, CT Avon, CT Barkhamsted, CT Beacon Falls, CT Beekman, NY Berlin, CT Bethany, CT Bethel, CT Bethlehem, CT Bloomfield, CT Bolton, CT Bozrah, CT Branford, CT Bridgewater, CT Bristol, CT Brookfield, CT Brooklyn, CT Burlington, CT Canaan, CT Canterbury, CT Canton, CT Chaplin, CT Cheshire, CT Chester, CT Clinton, CT Colchester, CT Colebrook, CT Columbia, CT Cornwall, CT Coventry, CT Cromwell, CT Danbury, CT Darien, CT Deep River, CT Derby, CT Dover, NY Durham, CT East Fishkill, NY East Granby, CT East Haddam, CT East Hampton, CT East Hartford, CT East Haven, CT East Lyme, CT East Windsor, CT Easton, CT Ellington, CT Enfield, CT Essex, CT Fairfield, CT Farmington, CT Franklin, CT Glastonbury, CT Goshen, CT Granby, CT Greenwich, CT Griswold, CT Groton, CT Guilford, CT Haddam, CT Hamden, CT Hampton, CT Hartford, CT Hartland, CT Harwinton, CT Hebron, CT Kent, CT Killingly, CT Killingworth, CT Lebanon, CT Ledyard, CT Lisbon, CT Litchfield, CT Lyme, CT Madison, CT Manchester, CT Mansfield, CT Marlborough, CT Meriden, CT Middlebury, CT Middlefield, CT Middletown, CT Milford, CT Monroe, CT Montville, CT Morris, CT Naugatuck, CT Newington, CT Newtown, CT New Britain, CT New Canaan, CT New Fairfield, CT New Hartford, CT New Haven, CT New London, CT New Milford, CT Norfolk, CT North Branford, CT North Easy, NY North Haven, CT North Stonington, CT Norwalk, CT Norwich, CT Old Lyme, CT Old Saybrook, CT Orange, CT Oxford, CT Pawling, NY Plainfield, CT Plainville, CT Plymouth, CT Pomfret, CT Portland, CT Preston, CT Prospect, CT Putnam, CT Redding, CT Ridgefield, CT Rocky Hill, CT Roxbury, CT Salem, CT Salisbury, CT Seymour, CT Shelton, CT Sherman, CT Simsbury, CT Somers, CT South Windsor, CT Southbury, CT Southington, CT Sprague, CT Stafford, CT Stamford, CT Stanford, NY Sterling, CT Stonington, CT Stratford, CT Suffield, CT Thomaston, CT Thompson, CT Tolland, CT Torrington, CT Trumbull, CT Union, CT Union Vale, NY Vernon, CT Voluntown, CT Wallingford, CT Washington, CT Washington, NY Waterbury, CT Waterford, CT Watertown, CT West Hartford, CT West Haven, CT Westbrook, CT Weston, CT Westport, CT Wethersfield, CT Willington, CT Wilton, CT Winchester, CT Windham, CT Windsor, CT Windsor Locks, CT Wolcott, CT Woodbridge, CT Woodbury, CT Woodstock, CT
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