Is it Worth Upgrading to an I/A OWTS Septic System?

Septic systems are an essential component of any home or property that is not connected to a central sewer system. Over time, however, traditional septic or cesspool systems can become outdated, inefficient, and potentially harmful to the environment. That’s why many homeowners are considering upgrading to an advanced I/A OWTS septic system.

But, is this upgrade worth the cost? Lets explore the cost-effectiveness of upgrading to an I/A OWTS septic system.

Initial Cost

Shallow drainfield in progress

The first consideration when it comes to the cost of upgrading your septic system is the initial cost. Installing an I/A OWTS septic system is a significant investment, and it’s important to understand the costs involved before making a decision.

The cost of installation varies based on the size of the system, the complexity of the installation, and the local regulations in your area. On average, you can expect to pay anywhere from $10,000 to $30,000 for a complete installation of an I/A OWTS septic system.

However, this initial cost can often be offset by grant and rebate programs offered by local, state, and federal governments. These programs are designed to encourage homeowners to upgrade their septic systems and reduce the environmental impact of traditional systems. By securing grant and rebate funding, you may be able to significantly reduce the initial cost of upgrading to an I/A OWTS septic system.

For example, here at Bridgewater Environmental we have helped a number of homeowners upgrade their existing cesspool or septic systems with zero out-of-pocket costs.

Lifetime Cost Savings

Components of a residential AdvanTex treatment system

Another important consideration is the lifetime cost savings associated with upgrading to an I/A OWTS septic system. I/A OWTS septic systems are designed to be more efficient and require less maintenance than traditional systems. This means that you will likely save money on maintenance and repair costs over the lifetime of the system.

In addition, I/A OWTS septic systems are also more environmentally friendly than traditional systems. By reducing the risk of groundwater contamination, you may be able to avoid costly fines and penalties imposed by local and state regulations.

In many cases, the lifetime cost savings associated with upgrading to an I/A OWTS septic system can more than offset the initial cost of installation. This means that you can enjoy a more efficient, reliable, and environmentally friendly septic system while also saving money over the lifetime of the system.

Increased Property Value

View of Ward's Point from Shell Beach, Shelter Island

Upgrading to a nitrogen-reducing septic system can also have a positive impact on the value of your property. In many cases, a home with a modern and efficient septic system is more desirable and can command a higher price on the real estate market.

This is particularly true in jurisdictions where these systems are beginning to become mandatory. In these areas, having a home that the buyer will not need to sink tens-of-thousands of dollars into while dealing with the hassle of the upgrade process can mean the difference between multiple offers or buyers looking elsewhere!

By investing in an I/A OWTS septic system, you are not only improving the functionality and reliability of your septic system, but you are also increasing the value of your property. This can be especially important if you are considering selling your home in the future.


Upgrading to an I/A OWTS septic system is a cost-effective decision that can provide a range of benefits over the lifetime of the system. From reduced maintenance and repair costs to increased property value, the benefits of upgrading to an I/A OWTS septic system far outweigh the initial cost of installation.

So, if you’re a homeowner with a traditional septic or cesspool system, consider upgrading to an I/A OWTS septic system. With the right combination of grant and rebate funding and careful planning, you can enjoy a more efficient, reliable, and environmentally friendly septic system while also saving money over the lifetime of the system.

Looking to Upgrade Your Septic or Cesspool System?

Free Consultation

Contact Us for a Free Consultation and Find Out What Types of Funding Options You Qualify For