Serving Northern Virgina / Washington DC Metro Area Customers Since 1987

We Can Help!

Complete the form below to schedule a Septic Tank Installation

First Name:
Last Name:

Fairfax VA Septic System Installation: Concrete and Fiberglass Septic Tanks

Septic Tank Installation Services

If you’re in the market for a new septic tank for your home, farm, or small convenience store, then look no further for the information you need on septic tank installation. SES Mid Atlantic has been removing, inspecting, and installing septic tanks in Fairfax, VA since 1992, and they have the expertise to educate you on the entire process.

The method to septic tanks installation depends on the material, with the two main types being concrete and fiberglass. The main difference between installing a concrete septic tank versus a fiberglass tank is the usage of additional stability. A fiberglass tank will require two concrete blocks attached to the tank when placed in the excavation area, while the concrete is heavy enough by itself.

Fairfax VA Concrete Septic Tank

These types of tanks are extremely durable and can last up to a half a century, if installed right. The cement must be mixed and poured properly otherwise it may only last a few years. Concrete tanks are also very heavy even when empty, therefore they require heavy machinery to install, thus making it more difficult if your home or business is located in a more remote or wooded area.

Fairfax VA Fiberglass Septic Tanks

Fiberglass septic tanks are much lighter and easier to install than concrete tanks. With no heavy equipment needed to transport fiberglass tanks, these may be the more agreeable option for you if either your home or business is located in a more remote area. Fiberglass tanks will also generally last longer than concrete tanks as they are unaffected by the sewer gases and are less likely to deteriorate over time.

You will need to check your state’s regulations on fiberglass septic tanks, because not all states allow them; while concrete tanks are accepted in every state. SES Mid Atlantic, based in Fairfax, VA, strongly recommend having a soil test performed on your property, as fiberglass tanks can deform when placed in unstable soil and can float when placed in saturated soil without proper ballast, or stability.

You should now know the difference between the two main types of septic tank installations, and have a good idea of which would work best for you. If you need any additional information on installing septic tanks, you can contact or go to the website of SES Mid Atlantic located in Fairfax, VA.

SES Company


  • Virginia Onsite Wastewater Recycling Association
  • National Onsite Wastewater Recycling Association
  • Water Environment Federation
  • Virginia Association of Counties
  • Northern Virginia Building Industry Association
  • Design Build Institute of America
  • Better Business Bureau
  • Dulles Area Realtors Association
  • Prince William Regional Chamber of Commerce

Learn More

Responsible Management Entity

SES is one of only three businesses to be licensed as a Responsible Management Entity. Loudoun County Virginia was the first in the Nation to establish requirements for an RME based on EPA recommendations. SES manages several communities required to have an RME.

Learn More


  • Licensed Conventional & Alternative Onsite Soil Evaluators (AOSE)
  • Licensed Conventional and Alternative Onsite Sewage System Operators
  • Licensed Conventional and Alternative Onsite Sewage System Installers
  • NSF Certified Septic System Inspectors
  • Virginia Class A Contractors License
  • Environmental, Monitoring Well and SDS Endorsements
  • Licensed Sewage Handler
  • Licensed Wastewater Treatment Plant Operators
  • Licensed Water System Operators

Learn More