Time for a new septic system? 

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Septic System Installation for New Hampshire

Because the septic system is one of the costliest components of your home, choosing the right company to design and install a new septic system is an extremely big decision. Because Townes Septic Service has been installing and maintaining septic for three generations, we are passionate about providing the best septic system installation in New Hampshire.


When you’re wondering how much a new septic system is, it may surprise you to learn how much it costs for a septic system in New Hampshire. On average, a new septic system design to installation runs around $12,000 in the Granite State. 

The good news is that the lifetime of a septic system averages 25 years. And we’ve seen them last longer — way longer. In fact, many of the septic systems Grandpa Townes installed 60 years ago are still working away today! How long your system lasts boils down to proper septic system design and routine maintenance. The key to keeping your septic system running longer is three-fold:

  • A proper design that was built to withstand the everyday load your household puts on the system.

  • A generous amount of aggregate to aid in drainage.

  • Thorough service performed regularly. As in, at least every 2-3 years.


Why you should Have townes install your septic system.

We can think of a few reasons why you should go with us, but here’s the three that matter the most.

1. We’ve been around for a while and are septic system installation experts.

The State of New Hampshire works really hard trying to keep raw sewage out of our waterways and environment, which we can all agree is a good thing. But all that regulation requires plenty of expensive septic design time. Our years of septic system design and septic tank installation experience can really start to save you some money.

2. Our systems have a proven reputation of lasting way longer than the standard.

In our 60 years, we’ve learned a lot about what works and what doesn’t with septic systems. Not-the-least-of-which is how to build a system that can last generations.

3. We have a secret heirloom that saves you money.

Some families pass down heirloom pocket-watches. Our family passes down the gravel pit.

So how does that help you — the home-owner — with a failing septic system? Our septic customers pay wholesale prices for gravel and sand which adds up when you’re installing a septic system. And because we aren’t pressured to pinch pennies on aggregates, if we think a septic design would function better with more sand, we’ll just throw it in without batting an eye.

All that comes down to more money in your pocket, so you can make sure you get that new septic tank pumping on a schedule. Simply put, we love serving our neighbors and providing the best in service is our specialty.

Septic System Installation FAQS

What is a septic system?

A Septic system carries waste away from the home by water flowing through the drain system to the septic tank. You may need an electric pump to help this, or simply use gravity, to get everything from point A to point B. 

When the tank reaches its capacity, the liquid in the tank continues to flow beyond to the porous pipes which disperse the materials in the drain field, which contains gravel stone and other aggregates to disperse the material. As the waste moves through, natural bacterial work breaks down the material to a virtually sterile nature. 

The remaining sludge in the septic tank breaks down with its own bacterial action and reduces volume over time.

Wondering how to install a septic system that will last?

Well, those are kind of trade secrets, so we’ll have to pass on the direct answer. (But it does have to do with knowing the best septic installation company in New Hampshire, having custom design for your septic system, and trusting superior septic installers, which we have!)

Who needs a septic system?

If your home does not have city sewer piping, then you currently have a septic sewer system.

How do I know how to prepare for your septic system installation?

Once it’s been decided that you need a new septic system, we will walk you through everything you need to know in how to prepare your home. But the good news is that we do most of the heavy lifting with your septic system installation in New Hampshire!


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Get Pricing on a Septic System.