Licensed Septic Companies in Connecticut
The Septic Guide lists 1,925 septic companies and licensed septic professionals in Connecticut; 1,903 are matched to state license or certification lists (data as of October 2026).
Septic companies by county
Licensed company profiles in Connecticut
Septic services in Connecticut
Counts of Connecticut listings by service, from each business's own website or the type of state license it holds.
Who licenses septic work in Connecticut?
Connecticut licenses septic installers and cleaners (pumpers) under Chapter 393a; active licenses are published daily on data.ct.gov.
Credentials: Subsurface sewage disposal system installer license; Subsurface sewage disposal system cleaner license.
Agency: Connecticut Department of Public Health (licensing through the state eLicense system).
Licenses shown in this directory come from: Connecticut Department of Public Health / Department of Consumer Protection (1,973); Connecticut DCP (5).
Septic companies in Connecticut: common questions
How many licensed septic companies are in Connecticut?
The Septic Guide lists 1,925 septic companies and licensed septic professionals in Connecticut; 1,903 are matched to state license or certification lists (data as of October 2026). 142 have a phone number listed; the others appear on the state list without one.
Do septic contractors need a license in Connecticut?
Yes. Connecticut licenses septic installers and cleaners (pumpers) under Chapter 393a; active licenses are published daily on data.ct.gov.
How do I check a septic license in Connecticut?
Search the contractor on the Connecticut Department of Public Health (licensing through the state eLicense system)'s lookup (https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx). Every license badge in this directory links to the agency's own lookup.