Top-rated septic system installers and replacers.

Get matched with top septic system installers and replacers in your area

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Septic system installers and replacers in Somersworth

Roadway Excavators Inc.
522 Harvey Rd
5.00(
2
)
Approved Pro
Roadway Excavators Inc.
522 Harvey Rd
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 local quotes requested

Roadway Excavators Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

"Replaced leech field- he did an excellent job removing my old leech field and replacing it with a better system. From the time I entered the job in homeadvisor (approx 8am) I was called back before noon. We scheduled a site review later that day. From the time I selected Roadway, there was constant progress. Even when the permits were in progress, they were in constant contact to let me know what was going on. When the permits were in order, they worked nonstop until the job was done. Their work was excellent, prompt and neat. Highly recommend."

Russ R on April 2021

Roadway Excavators Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

"Replaced leech field- he did an excellent job removing my old leech field and replacing it with a better system. From the time I entered the job in homeadvisor (approx 8am) I was called back before noon. We scheduled a site review later that day. From the time I selected Roadway, there was constant progress. Even when the permits were in progress, they were in constant contact to let me know what was going on. When the permits were in order, they worked nonstop until the job was done. Their work was excellent, prompt and neat. Highly recommend."

Russ R on April 2021


Avatar for Septic Designs of NH, LLC
Septic Designs of NH, LLC
12 Folsom St
4.75(
25
)
Approved Pro
Septic Designs of NH, LLC
12 Folsom St
4.75(
25
)
Approved Pro
Customers say: Terrific value
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
25 local quotes requested

Septic Designs of NH LLC is a Veteran owned small business with BBB accreditation. We take great pride in our work and are not satisfied until you are. We do Septic Designs, Inspections, Tank Replacements, and Septic Repairs. We also clear main sewer lines and do Trenchless Pipe Repair. Which is a NO DIG solution for pipe replacements. Our jetter is also a HEATED jetter for that tough grease or other buildup where you need some extra hot water to really clean the pipe.

"I called every plumber around and Septic Design of NH had the best price to put a camera down the sewer line. Problem was located in no time."

Vickie C on September 2021

Septic Designs of NH LLC is a Veteran owned small business with BBB accreditation. We take great pride in our work and are not satisfied until you are. We do Septic Designs, Inspections, Tank Replacements, and Septic Repairs. We also clear main sewer lines and do Trenchless Pipe Repair. Which is a NO DIG solution for pipe replacements. Our jetter is also a HEATED jetter for that tough grease or other buildup where you need some extra hot water to really clean the pipe.

"I called every plumber around and Septic Design of NH had the best price to put a camera down the sewer line. Problem was located in no time."

Vickie C on September 2021


Kacena Site Work Support Services, LLC
149A Flagg Road
4.96(
29
)
Approved Pro
Kacena Site Work Support Services, LLC
149A Flagg Road
4.96(
29
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

Hi I am Darryl Ames, Owner of Kacena Site Work Support Services, LLC. I have been doing Site work and septic systems for over 40 years. I used to own KIB Excavators, but due to the economy in 2008, I chose to sell my equipment and work for the guy I sold them to. Recently, I decided to go back out on my own, and see if I can help some people solve their septic and drainage issues. I believe in doing the job right the first time, giving the customer more than they expect, and try to do it at a reasonable price. "It's never wrong to do the right thing"

"Great price and great service!! Definitely would recommend Daryl to anyone looking for a company that communicates and committed!!!!"

Brenda S on July 2024

Hi I am Darryl Ames, Owner of Kacena Site Work Support Services, LLC. I have been doing Site work and septic systems for over 40 years. I used to own KIB Excavators, but due to the economy in 2008, I chose to sell my equipment and work for the guy I sold them to. Recently, I decided to go back out on my own, and see if I can help some people solve their septic and drainage issues. I believe in doing the job right the first time, giving the customer more than they expect, and try to do it at a reasonable price. "It's never wrong to do the right thing"

"Great price and great service!! Definitely would recommend Daryl to anyone looking for a company that communicates and committed!!!!"

Brenda S on July 2024


Avatar for Select Excavation and Landscaping
Select Excavation and Landscaping
25 Hale True Road
5.00(
2
)
Approved Pro
Select Excavation and Landscaping
25 Hale True Road
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
212 local quotes requested

**** CHECK OUT OUR WEBSITE WWW.NHEXCAVATION.COM **** Select Excavation offers highly affordable septic services including general excavation, water & septic line services, leach field installations, as well as septic system installation and repair. From entire condo complexes to single family residences, Select Excavation has the equipment, experience, and in-depth technical knowledge to do the job right. We are a trusted NH septic service, leach field installation and water main installation company. Since 2010, we've been the best septic services provider serving southern NH. We offer water main installations, septic system installation, leach field repairs & replacement.

"Select Excavation and Landscaping, LLC is in one word FANTABULOUS!! John was always available, his knowledge of what was needed for our project was spot on. He knew the codes that were necessary, he was personable and engaging and he always checked in with us throughout the entire process. Johns crew of Nick, Eddie and Kyle are very talented and knowledgeable craftsmen. The are also polite, intuitive and receptive to the needs at hand each day. We THANK, John and crew for doing a FANTABULOUS job!!"

Tom W on April 2023

**** CHECK OUT OUR WEBSITE WWW.NHEXCAVATION.COM **** Select Excavation offers highly affordable septic services including general excavation, water & septic line services, leach field installations, as well as septic system installation and repair. From entire condo complexes to single family residences, Select Excavation has the equipment, experience, and in-depth technical knowledge to do the job right. We are a trusted NH septic service, leach field installation and water main installation company. Since 2010, we've been the best septic services provider serving southern NH. We offer water main installations, septic system installation, leach field repairs & replacement.

"Select Excavation and Landscaping, LLC is in one word FANTABULOUS!! John was always available, his knowledge of what was needed for our project was spot on. He knew the codes that were necessary, he was personable and engaging and he always checked in with us throughout the entire process. Johns crew of Nick, Eddie and Kyle are very talented and knowledgeable craftsmen. The are also polite, intuitive and receptive to the needs at hand each day. We THANK, John and crew for doing a FANTABULOUS job!!"

Tom W on April 2023


JFP Survey & Design LLC
13 Kristy Ct
5.00(
4
)
JFP Survey & Design LLC
13 Kristy Ct
5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Land Surveying

Land Surveying


E&E Septic dba Epping and Exeter Septic Service
82 Camp Lee Road
No reviews
E&E Septic dba Epping and Exeter Septic Service
82 Camp Lee Road
No reviews
43 years of experience

Full Service Septic Company

Full Service Septic Company


Wicked Web Design & SEO
1312 North Monroe St. Suite 137
4.67(
9
)
Wicked Web Design & SEO
1312 North Monroe St. Suite 137
4.67(
9
)
Customers say: Quick response
12 years of experience

Want an Awesome looking website that also Ranks in the search engines? If you're expecting for it to generate new customers it's vital potential customers find it when they search. This is called Search Engine Optimization. Everyone and their brother are building websites these days, and ironically they are all SEO experts. Most people are smart enough to figure out this isn't true. We are 100% from the United States. Our team is comprised of Graphic Designers, a content writer and one of the Best SEO's in the Country. We have hundreds of #1 Rankings for some of the hardest search terms available. Ask to see some samples. Wicked Web Design is a division of Justin Monk SEO. It became a division to full-fill the entire package. Anyone can build a website, but if the on-page optimization isn’t done correctly the website will never rank. The customer then is forced to pay to have it re-done. Here’s where it gets tricky. Everyone says they are good at SEO, when actually very few are. It definitely isn’t fair to you the customer. Please do your homework and check their rankings. If they don’t have rankings chances are they aren’t very good. We rank in every city we have targeted. Ask to see the list. Awesome web Design mixed with Dominating SEO is a combination any company looking to destroy their competition can’t go without. Please allow extra time for our website (Visit Website) to load, the Demo is displaying all features available which dramatically slow down the loading speed. All the features are displayed so you can choose which ones you want for your website which will be much faster.

Want an Awesome looking website that also Ranks in the search engines? If you're expecting for it to generate new customers it's vital potential customers find it when they search. This is called Search Engine Optimization. Everyone and their brother are building websites these days, and ironically they are all SEO experts. Most people are smart enough to figure out this isn't true. We are 100% from the United States. Our team is comprised of Graphic Designers, a content writer and one of the Best SEO's in the Country. We have hundreds of #1 Rankings for some of the hardest search terms available. Ask to see some samples. Wicked Web Design is a division of Justin Monk SEO. It became a division to full-fill the entire package. Anyone can build a website, but if the on-page optimization isn’t done correctly the website will never rank. The customer then is forced to pay to have it re-done. Here’s where it gets tricky. Everyone says they are good at SEO, when actually very few are. It definitely isn’t fair to you the customer. Please do your homework and check their rankings. If they don’t have rankings chances are they aren’t very good. We rank in every city we have targeted. Ask to see the list. Awesome web Design mixed with Dominating SEO is a combination any company looking to destroy their competition can’t go without. Please allow extra time for our website (Visit Website) to load, the Demo is displaying all features available which dramatically slow down the loading speed. All the features are displayed so you can choose which ones you want for your website which will be much faster.


Blaisdell Survey LLC
22 Scribner Rd
No reviews
Blaisdell Survey LLC
22 Scribner Rd
No reviews
25 years of experience

I am a Land Surveyor, Septic Designer, Septic Evaluator, & Wetland Scientist based in Raymond, New Hampshire. I serve Southeastern New Hampshire including Rockingham County, Derry, Londonderry, Manchester and Salem. As a licensed Land Surveyor, Septic Designer and Wetland Scientist means that I do not have to sub-contract parts of a job which allows me to pass the savings on to my customers! The services I perform are on a fixed fee basis or hourly rate depending on the level of complexity.

I am a Land Surveyor, Septic Designer, Septic Evaluator, & Wetland Scientist based in Raymond, New Hampshire. I serve Southeastern New Hampshire including Rockingham County, Derry, Londonderry, Manchester and Salem. As a licensed Land Surveyor, Septic Designer and Wetland Scientist means that I do not have to sub-contract parts of a job which allows me to pass the savings on to my customers! The services I perform are on a fixed fee basis or hourly rate depending on the level of complexity.


Ibarra & Sons Excavating
8 Tamarack Court
No reviews
Ibarra & Sons Excavating
8 Tamarack Court
No reviews
26 years of experience

ibarra & sons excavating is an complete sitework excavating contractor-specializing in residential construction -this would include house lots/ additions / garages

ibarra & sons excavating is an complete sitework excavating contractor-specializing in residential construction -this would include house lots/ additions / garages


Coastal Points Construction
Gilman Street
5.00(
3
)
Coastal Points Construction
Gilman Street
5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Family business, detail and structural safety oriented. We will manage the whole project from start to finish so that everything is done up to our high standards with no middle man. Coastal Points Construction does everything from excavation to high end tiling. Custom homes, hardscape, home improvement, septic design & install, water front assessments, property management, interior design, & remodeling.

Family business, detail and structural safety oriented. We will manage the whole project from start to finish so that everything is done up to our high standards with no middle man. Coastal Points Construction does everything from excavation to high end tiling. Custom homes, hardscape, home improvement, septic design & install, water front assessments, property management, interior design, & remodeling.

...
Showing 1-10 of 74

Septic system installations and replacements FAQs

Depending on maintenance and environmental conditions, septic distribution boxes last between 15 and 40 years. With excellent care and regular system maintenance, these components can function properly for over 30 years. Factors affecting longevity include soil conditions, proper installation, regular septic tank pumping, and avoiding excessive water usage that might overwhelm the system.

Warning signs of distribution box problems include unusually lush or soggy grass patches over your drain field, slow-draining fixtures throughout your home, and unpleasant odors in your yard. You might also experience plumbing backups, gurgling sounds in pipes, or multiple drain clogs occurring simultaneously. These symptoms indicate that wastewater isn't being evenly distributed across your leach field lines.

Most standard homeowners' insurance policies don't cover septic distribution box replacement when damage results from normal wear, age-related deterioration, or poor maintenance. Coverage might apply if damage occurs from sudden, covered events like falling trees or vehicle impacts. Some insurers offer optional septic system endorsements for additional protection. Review your specific policy details to understand your coverage options.

Septic professionals recommend having your distribution box and overall septic system inspected every two to five years. Some homeowners opt for more frequent checks, especially if they've experienced previous issues or have an older system. Regular inspections help identify minor problems before they develop into major failures requiring complete replacement. These preventative evaluations cost between $100 and $200.

The 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.
Man inspecting well
Apr 21, 2025
Apr 21, 2025
Discover how factors such as your location, service requirements, labor rates, and add-ons affect well inspection costs.
A septic system on the backyard
Apr 16, 2025
Apr 16, 2025
If you need to install a new septic system, use our cost guide to budget for this extensive project.
well pump in borehole water supply system
Apr 16, 2025
Apr 16, 2025
Budget for well pump repair costs based on factors such as parts and components, location, pump type, labor, inspections, and more.
septic tank in yard under repair
Mar 23, 2025
Mar 23, 2025
Budget for septic tank repair costs based on factors including parts, materials, labor, ongoing maintenance costs, and more.
Girl washing her hands in the kitchen
Mar 20, 2025
Mar 20, 2025
Use this guide to budget for a septic system inspection based on cost factors such as inspection type, accessibility, and additional septic services.
septic tank being pumped and cleaned by pump truck
Feb 20, 2025
Feb 20, 2025
When calculating the cost to pump a septic tank, you need to consider the size of the tank, how often it needs to be pumped, and the maintenance of the tank.
Share project details to get started.