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Middletown, Delaware

Licensed Septic Companies in Middletown, DE

6 septic companies serve Middletown, Delaware, and 6 of them hold a Delaware septic license or certification matched to the Delaware Department of Natural Resources and Environmental Control list (data as of October 2026).

6 septic companies in Middletown

  • Mark North Builders, LLC

    Middletown, DE 19709 · New Castle County

    • Licensed: Delaware DNREC Licensed On-Site Sewage System Contractor (Class E) · #4433E3 (Delaware Department of Natural Resources and Environmental Control, verify)

    Per state license: Installation

    (302) 530-3620

  • Morgan Creek GC LLC

    Middletown, DE 19709 · New Castle County

    • Licensed: Delaware DNREC Licensed On-Site Sewage System Contractor (Class E) · #4602E3 (Delaware Department of Natural Resources and Environmental Control, verify)

    Per state license: Installation

    (302) 275-3128

  • Richard F Matoni General Contractor

    Middletown, DE 19709 · New Castle County

    • Licensed: Delaware DNREC Licensed On-Site Sewage System Contractor (Class E) · #4072E3 (Delaware Department of Natural Resources and Environmental Control, verify)

    Per state license: Installation

    (302) 598-4975

  • Sterling Cabinetry & Carpentry

    Middletown, DE 19709 · New Castle County

    • Licensed: Delaware DNREC Licensed On-Site Sewage System Contractor (Class E) · #2351E3 (Delaware Department of Natural Resources and Environmental Control, verify)

    Per state license: Installation

    (302) 367-4311

  • Town of Middletown

    Middletown, DE 19709 · New Castle County

    • Licensed: Delaware DNREC Licensed On-Site Sewage System Contractor (Class E) · #6136E2 (Delaware Department of Natural Resources and Environmental Control, verify)
    • Licensed: Delaware DNREC Licensed On-Site Sewage System Contractor (Class E) · #6136E4 (Delaware Department of Natural Resources and Environmental Control, verify)

    Per state license: Installation

    (302) 378-2711 middletownde.org

  • W W Snyder Masonary Excavating

    Middletown, DE 19709 · New Castle County

    • Licensed: Delaware DNREC Licensed On-Site Sewage System Contractor (Class E) · #2344E3 (Delaware Department of Natural Resources and Environmental Control, verify)

    Per state license: Installation

    (302) 598-1711

Septic licensing in Delaware

Delaware publishes its Class E septic contractor roster as public-domain open data, including company phone and email. The Delaware DNREC issues these credentials: Class E system contractor/installer license.

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.

Delaware 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, DE?

6 septic companies serve Middletown, Delaware, and 6 of them hold a Delaware septic license or certification matched to the Delaware Department of Natural Resources and Environmental Control 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 Delaware?

Delaware publishes its Class E septic contractor roster as public-domain open data, including company phone and email. The licensing body is the Delaware DNREC.

Which companies install septic systems in Middletown?

6 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 Delaware license.

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

Use the Delaware DNREC's lookup (https://data.delaware.gov/resource/376h-4rq3) and search the contractor's name or license number. Our guide to checking a septic license walks through it.