The Septic GuideLicensed septic pros
List Your Business
Middletown, Rhode Island

Licensed Septic Companies in Middletown, RI

5 septic companies serve Middletown, Rhode Island, and 5 of them hold a Rhode Island septic license or certification matched to the Rhode Island Department of Environmental Management list (data as of October 2026).

5 septic companies in Middletown

  • All American Landscaping

    2 Aspinet Road, Middletown, RI 02842 · Newport County

    • Licensed: Rhode Island DEM Licensed OWTS (Septic) Installer · #L1875 (Rhode Island Department of Environmental Management, verify)

    Per state license: Installation

    (401) 258-9702

  • Andrew P Kent

    1101 Green End Avenue, Middletown, RI 02842 · Newport County

    • Licensed: Rhode Island DEM Licensed OWTS (Septic) Installer · #L1025 (Rhode Island Department of Environmental Management, verify)

    Per state license: Installation

    (401) 849-6541

  • Joseph F Medeiros

    1700 West Main Road, Middletown, RI 02842 · Newport County

    • Licensed: Rhode Island DEM Licensed OWTS (Septic) Installer · #L1574 (Rhode Island Department of Environmental Management, verify)

    Per state license: Installation

    (401) 849-8080

  • Mello Construction Company, Inc.

    87 Beacon Street, Middletown, RI 02842 · Newport County

    • Licensed: Rhode Island DEM Licensed OWTS (Septic) Installer · #L1265 (Rhode Island Department of Environmental Management, verify)

    Per state license: Installation

    (401) 847-3377

  • Trademark Builders LLC

    1 Trimble Road, Middletown, RI 02842 · Newport County

    • Licensed: Rhode Island DEM Licensed OWTS (Septic) Installer · #L1931 (Rhode Island Department of Environmental Management, verify)

    Per state license: Installation

    (401) 619-3690

Septic licensing in Rhode Island

Rhode Island licenses septic (OWTS) installers for three-year terms after an exam. The Rhode Island DEM, OWTS program issues these credentials: OWTS installer license (3-year, exam).

Permits for new systems, replacements and most repairs are issued locally. Ask the contractor which office handles Middletown and whether the permit fee is in their quote.

Rhode Island septic licensing: agencies, license types and how to check a license →

Septic companies in Middletown: common questions

How many licensed septic companies are in Middletown, RI?

5 septic companies serve Middletown, Rhode Island, and 5 of them hold a Rhode Island septic license or certification matched to the Rhode Island Department of Environmental Management list (data as of October 2026). Each license badge on this page names the agency and links to its lookup so you can confirm it.

Who licenses septic contractors in Rhode Island?

Rhode Island licenses septic (OWTS) installers for three-year terms after an exam. The licensing body is the Rhode Island DEM, OWTS program.

Which companies install septic systems in Middletown?

5 listings in Middletown install septic systems. New systems and replacements need a permit, so ask each installer to handle the permit and to show their Rhode Island license.

How do I check a septic contractor's license in Rhode Island?

Use the Rhode Island DEM, OWTS program's lookup (https://dem.ri.gov/environmental-protection-bureau/water-resources/professional-licensing/owts-professional-licensing) and search the contractor's name or license number. Our guide to checking a septic license walks through it.