Home › Maryland › Harford County › Aberdeen › Matthew H. Merrill

Matthew H. MerrillLicensed

Licensed septic contractor based in Aberdeen, Harford County, MD

Name	Matthew H. Merrill
Company	John's Septic Service LLC
License number	00163
License type	Registered On-Site Wastewater (Septic) Professional
License status	Current — MD State Board of On-Site Wastewater Professionals
License expires	2026-12-31
Based in	Aberdeen, Harford County, Maryland 21001
Phone	(410) 272-2317

"Based in" is the city and county of the address on the business's state license record. That can be a mailing address; it doesn't tell you where the business works.

Request a quote from Matthew H. Merrill

How to verify this license

We publish the license details exactly as they appear in Maryland's official licensing records; we do not vouch for the business itself. Before hiring, look up license #00163 directly with the state, confirm it is still active, and ask for a current certificate of insurance.

Source: MD State Board of On-Site Wastewater Professionals - registered individuals, last checked 2026-08-17. Verify at the official source.

Are you Matthew H. Merrill? Claim this listing to show your business name on it. It's free, and we confirm every claim before anything changes.