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Find Septic system installers and replacers in Somersworth

Kacena Site Work Support Services, LLC
5.0(
29
)

Serving Somersworth, NH and surrounding areas

Approved

In business since 2017

Free estimates

Small jobs welcome

"I highly recommend Kacena Site Work, without reservation. Darryl did an excellent job installing our new septic system under very difficult circumstances, and worked closely with the town to ensure all necessary permits were in place. He installed the new system at the end of winter, with snow still on the ground. He also had to deal with a lot of ledge, and an old low hanging tree when the tank was brought in and finally lowered into place. He returned early spring to regrade a large area of the yard and around the leach field, laying down fresh top soil, grass seed and fertilizer. His work was excellent and his pricing very fair. The final cost came in much lower than competitive bids. We could not be happier. Thank you Darryl!!"
Response time12 hrs
10 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Septic Designs of NH, LLC
Septic Designs of NH, LLC
4.8(
25
)

Serving Somersworth, NH and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"They came to inspect the Septic for home buying .They explain the system and how it works ,so I could understand , showing me the cleanout and D Box area . After this they coverd the two holes and left it like they found it. They both are Pro s and I will use them again "
Septic Inspection
Leach Field
Septic System Distribution Box
Septic Camera
Septic Pipe

+43

Response time8 hrs
14 neighbors recently requested a quote
Recommended by96%of homeowners
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Avatar for Sewer Surgeons LLC
Sewer Surgeons LLC
5.0(
8
)

Serving Somersworth, NH and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Absolutely fantastic. The guy that showed up couldn't say enough about them as far as they're the best they they are the best. The best is the best actually.. I spoke to the manager that the office a few times took care of everything I didn't have to do anything. They're number one in my book if you ever need anybody, anybody to help you guys you gotta call these guys."
Septic Repairs
Septic Repairs
Septic Repairs
3 neighbors recently requested a quote
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FAQs for septic system installation and replacement projects in Somersworth, NH

The smallest standard septic system uses a 500-gallon tank, which costs between $875 and $1,150 installed. This size works well for single-occupant dwellings with minimal wastewater production. However, many local regulations specify minimum tank sizes, so check with your building department before committing to this compact option. Some jurisdictions require at least 750 gallons regardless of home size to ensure adequate waste processing capacity.

The installation timeline varies based on site conditions, permit processing, and contractor schedules. The process includes obtaining permits, conducting soil tests, excavation, tank placement, leach field construction, and final connections. Weather conditions, soil challenges, and inspection scheduling can all affect the overall timeline. It's wise to begin planning well in advance of when you need the system operational.

The most economical approach is to install a conventional anaerobic system with a plastic tank. To minimize costs while maintaining legality, obtain multiple quotes from licensed installers, consider scheduling during their slower seasons, and handle basic site preparation yourself. Never skip permits or required testing to save money—illegal installations can result in significant fines and mandatory removal, ultimately costing far more than doing it right initially.

Regular pumping helps prevent system failures and extends operational life. Most small systems require pumping every three to five years, though frequency depends on household size and usage patterns. Pumping services cost between $290 and $530, making this maintenance expense relatively minor compared to potential repair costs ranging from $500 to $2,600 for neglected systems. Establishing a regular maintenance schedule based on your installer's recommendations helps avoid costly emergency services.

The Somersworth, NH homeowners’ guide to septic system installations and replacements

From average costs to expert advice, get all the answers you need to get your job done.

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