Licensed Septic Companies in Dover, DE
5 septic companies serve Dover, Delaware, and 5 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).
Septic services in Dover
Guides: Septic tank pumping · Septic system installation · Septic repair · Drain field repair · Installation cost · Pumping cost
5 septic companies in Dover
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K4 Management
Dover, DE 19901 · Kent County
- Licensed: Delaware DNREC Licensed On-Site Sewage System Contractor (Class E) · #4510E3 (Delaware Department of Natural Resources and Environmental Control, verify)
Per state license: Installation
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L E Parsons Septic Services
2326 Lockwood Chapel Rd, Dover, DE 19904 · Kent County
- Licensed: Delaware DNREC Licensed On-Site Sewage System Contractor (Class E) · #5588E3 (Delaware Department of Natural Resources and Environmental Control, verify)
- Licensed: Delaware DNREC Licensed On-Site Sewage System Contractor (Class E) · #2257E3 (Delaware Department of Natural Resources and Environmental Control, verify)
From their website: Pumping · Installation · Repair · Drain field
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Sunnyfield Contractors
150 Sunnyfield Ln, Dover, DE 19904 · Kent County
- Licensed: Delaware DNREC Licensed On-Site Sewage System Contractor (Class E) · #2011E3 (Delaware Department of Natural Resources and Environmental Control, verify)
Per state license: Installation
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Teal Construction Inc
612 Mary St, Dover, DE 19903 · Kent County
- Licensed: Delaware DNREC Licensed On-Site Sewage System Contractor (Class E) · #2286E3 (Delaware Department of Natural Resources and Environmental Control, verify)
Per state license: Installation
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White Marsh Environmental Systems Inc
Dover, DE 19901 · Kent County
- Licensed: Delaware DNREC Licensed On-Site Sewage System Contractor (Class E) · #4573E3 (Delaware Department of Natural Resources and Environmental Control, verify)
Per state license: Installation
No listings match those filters.
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 Dover and whether the permit fee is in their quote.
Delaware septic licensing: agencies, license types and how to check a license →
Septic companies in Dover: common questions
How many licensed septic companies are in Dover, DE?
5 septic companies serve Dover, Delaware, and 5 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 pump septic tanks in Dover?
1 of the 5 listings in Dover offer septic tank pumping, either on their own website or under a state pumper license. Use the service filter above to show only those companies.
Which companies install septic systems in Dover?
5 listings in Dover 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.