Home Land Environmental
“Home Land also checked a well, water system and did a complete septic inspection on a house I was thinking to buy.”
Best Septic Tank Installers near Timonium, MD
These companies serve Timonium from nearby bases in towns including Jarrettsville, Towson and White Marsh.
10 companies listed · 2 open 24/7 · 4 open weekends · 9 rated 4.5+ · 3 show a license
Data verified November 7, 2026
Chavis Septic Services
“We really appreciated the professionalism and convenience of being able to trust them to take care of everything while we were out”
Earl E Preston Jr Inc and Whiteford Septic Service
“Representative introduced himself and checked with us just to make sure he was at the correct address given our location.”
Cossentino Septic Tank Pumping
“John was so friendly and as a first time homeowner, he took the time to explain all the things, and how to check our system for future maintenance needs.”
Mathena Septic Tank Services Inc
“We had an emergency and they were so quick to assist us.”
Walsh Septic Service
“His expertise allowed him to get some thicker material from the very bottom of the tank.”
The 10 companies listed for Timonium, MD design and install septic systems and replace failed drain fields. Each company's own site is the source for its hours, license claims and estimate policy. Ask who pulls the permit and who schedules the health department inspection.
Area overview: Timonium, MD
9 of the 10 companies on this page have a rating, from 4.6 to 5.0 across 1,784 reviews; 5 have 50 or more reviews. When customers rate these companies on specific qualities, they most often praise professionalism (88%), quality (84%) and responsiveness (84%). The topics that come up most in reviews of the companies on this page are "price" and "knowledge". 2 are open around the clock; 4 are open on Saturdays and 3 on Sundays. 3 show a license on their websites and 2 have a BBB rating of A or A+. 8 have ten or more years of experience, the longest 78 years. 4 offer emergency call-outs; 1 offers financing or payment plans; 3 give free estimates and 7 are family- or locally-owned. We have a website on file for all 10 of the companies on this page; 8 publish a contact page; 4 list a public email and 1 takes bookings online. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
Do any listed installers say they are licensed?
3 of the 10 listings for Timonium show a license on their websites. Septic installation is licensed separately from general contracting in many places, so confirm the credential covers on-site sewage work rather than excavation in general. The health department that issues permits can usually tell you who is approved locally.
Jones Pump Service
“They took the time to speak with us numerous times over the phone, patiently answering all of our questions and addressing every concern we had.”
Eagle and Son Septic
“Nathan of Eagle and Son Septic did a fantastic job with a small issue with our septic system.”
Bel Air Septic Service
Freedom Septic Service
“Pumped out our RV while we were visiting the grandparents for a month!”
Why these companies made our list
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