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  • Verified reviews icon100
    Verified septic tank services reviews

Find Septic tank pros in New Durham

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


Avatar for Ardito & Sons, LLC

Ardito & Sons, LLC

P.O. Box 17
5.00(
27
)
Approved Pro

Ardito & Sons, LLC

P.O. Box 17
5.00(
27
)
Approved Pro
71 local quotes requested
1 years of experience

Ardito & Sons 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. We also do not work on Town Water Systems. Only Well Systems We offer a Veteran Discount.

"Couldn’t ask for a better experience when dealing with a major home issue. Friendly and professional service. Highly recommended."

Francis K on October 2025

Ardito & Sons 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. We also do not work on Town Water Systems. Only Well Systems We offer a Veteran Discount.

"Couldn’t ask for a better experience when dealing with a major home issue. Friendly and professional service. Highly recommended."

Francis K on October 2025


Avatar for River View Construction Co.

River View Construction Co.

No reviews yet

River View Construction Co.

No reviews yet

Welcome to River View Construction Co. Established in 2014 - We offer General Contracting, Excavation, Forestry Services, Plowing & Sanding. We are fully insured & reputable. We strive to provide an elite experience, seamless, professional & with sense of urgency.

Welcome to River View Construction Co. Established in 2014 - We offer General Contracting, Excavation, Forestry Services, Plowing & Sanding. We are fully insured & reputable. We strive to provide an elite experience, seamless, professional & with sense of urgency.


Avatar for Busch Site Contracting LLC

Busch Site Contracting LLC

5.00(
4
)

Busch Site Contracting LLC

5.00(
4
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Busch Site Contracting, LLC is an excavation contractor proudly serving in New Hampshire & Maine. We strive to not only meet, but exceed the expectations of our clients. Providing premier site work services from excavation, land clearing, utilities and more, we have you covered. We value our client relationships and ensure our priority to deliver seamless, on-time and successful results. We do not offer interior fuel tank removal.

"It went really well, Sean was very helpful and did the job quickly. He was tied up on another job for a while but once he got to our house, he removed the concrete steps quickly and efficiently."

Marc-Anthony S on February 2025

Busch Site Contracting, LLC is an excavation contractor proudly serving in New Hampshire & Maine. We strive to not only meet, but exceed the expectations of our clients. Providing premier site work services from excavation, land clearing, utilities and more, we have you covered. We value our client relationships and ensure our priority to deliver seamless, on-time and successful results. We do not offer interior fuel tank removal.

"It went really well, Sean was very helpful and did the job quickly. He was tied up on another job for a while but once he got to our house, he removed the concrete steps quickly and efficiently."

Marc-Anthony S on February 2025


Avatar for New Hampshire Groundscapes

New Hampshire Groundscapes

73 King Rd
5.00(
2
)

New Hampshire Groundscapes

73 King Rd
5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

NHG is your local excavation & site work company. We offer many different services such as septic system installs/ replacements & designs, site work for new houses, garages, additions & commercial buildings. NHG also provides concrete foundation services. We can accomplish the site work for your project and install the foundation & concrete floor as well. We are your one stop shop!! Other services that we offer are yard/ driveway & parking lot grading/ expansion, stumping, pool pads, tree removal, sink hole dig out & fill, ledge hammering, water/sewer line services/repairs, & much more. We take great pride in providing our customers with very competitive prices and always deliver satisfactory results! Visit our website and Facebook for reviews and pictures of completed and ongoing projects.

"Great. will use them again."

Cheryl D on November 2020

NHG is your local excavation & site work company. We offer many different services such as septic system installs/ replacements & designs, site work for new houses, garages, additions & commercial buildings. NHG also provides concrete foundation services. We can accomplish the site work for your project and install the foundation & concrete floor as well. We are your one stop shop!! Other services that we offer are yard/ driveway & parking lot grading/ expansion, stumping, pool pads, tree removal, sink hole dig out & fill, ledge hammering, water/sewer line services/repairs, & much more. We take great pride in providing our customers with very competitive prices and always deliver satisfactory results! Visit our website and Facebook for reviews and pictures of completed and ongoing projects.

"Great. will use them again."

Cheryl D on November 2020


Avatar for Farrell Contracting Services, LLC

Farrell Contracting Services, LLC

125 High Rd
5.00(
6
)

Farrell Contracting Services, LLC

125 High Rd
5.00(
6
)
Customers say: Quick response
7 years of experience

Services provided include but are not limited to: Site Work, Excavation, Sewer & Water Connections, Utilities , Septic Systems, Culverts and Drainage, Public/Private Driveways & Roads, Material Deliveries (Large or Small Quantities), Trucking, Demolition, Snow Plowing, Lot Clearing, Field Building, Lawn Installation, Grading, Retaining Walls, Ponds, Brush Removal, Stump Removal, Trail Maintenance , Erosion Control, Misc. Property Improvements

"I was building a modular ranch and hired Farrell Contracting to excavate and grade the site as well as install the septic system. Jake is a pleasure to work with and I have no reservations recommending him to others."

Frank L on October 2025

Services provided include but are not limited to: Site Work, Excavation, Sewer & Water Connections, Utilities , Septic Systems, Culverts and Drainage, Public/Private Driveways & Roads, Material Deliveries (Large or Small Quantities), Trucking, Demolition, Snow Plowing, Lot Clearing, Field Building, Lawn Installation, Grading, Retaining Walls, Ponds, Brush Removal, Stump Removal, Trail Maintenance , Erosion Control, Misc. Property Improvements

"I was building a modular ranch and hired Farrell Contracting to excavate and grade the site as well as install the septic system. Jake is a pleasure to work with and I have no reservations recommending him to others."

Frank L on October 2025


LJM Construction, LLC

PO Box 2001
No reviews yet

LJM Construction, LLC

PO Box 2001
No reviews yet

Building lot development-Comm and Res Septic System Installation-NH Licensed Site work and dig foundations (we do not pour) Culvert and road repair General Excavation and Grading Erosion and drainage control Municipal water and sewer Pumping Stations Storm water management Demolition Earth moving Lot clearing and prep Drainage installation Building driveways Stumping LJM Construction and Excavation is located in Hillsborough, NH and has been in operation with over 40 years of experience, a renown leader in the industry. A leading provider for commercial and residential communities throughout the region, LJM services include excavation, foundation and site work, underground utility work, retaining walls, general construction, snow management and more. We take pride in our locally-owned business and our ongoing relationships with our customers, leading to strong customer loyalty. LJM Construction provides personalized attention before, during, and after our service. We believe that our success is based on excellent customer service and quality, timely work. Our goal is to exceed your expectations!

Building lot development-Comm and Res Septic System Installation-NH Licensed Site work and dig foundations (we do not pour) Culvert and road repair General Excavation and Grading Erosion and drainage control Municipal water and sewer Pumping Stations Storm water management Demolition Earth moving Lot clearing and prep Drainage installation Building driveways Stumping LJM Construction and Excavation is located in Hillsborough, NH and has been in operation with over 40 years of experience, a renown leader in the industry. A leading provider for commercial and residential communities throughout the region, LJM services include excavation, foundation and site work, underground utility work, retaining walls, general construction, snow management and more. We take pride in our locally-owned business and our ongoing relationships with our customers, leading to strong customer loyalty. LJM Construction provides personalized attention before, during, and after our service. We believe that our success is based on excellent customer service and quality, timely work. Our goal is to exceed your expectations!


Avatar for Piedmont Excavation & Septic LLC

Piedmont Excavation & Septic LLC

2100 Dover Rd
4.00(
7
)

Piedmont Excavation & Septic LLC

2100 Dover Rd
4.00(
7
)
Customers say: Quick response
32 years of experience

Services Include: - Excavation - Site Work and Preparation (Includes tree removal) - Site Clearing, Leveling & Grading - Septic Install, Repairs and Evaluations (No septic tank pumping) Piedmont Excavation & Septic, LLC is an excavation and site development contractor in central and southern NH. Having been in the earthwork business since 1993, our commitment to our clients is to maintain the highest level of quality while delivering cost efficient results and meeting the most demanding schedules. We believe that safety is achieved through proper planning, training and work site awareness. Our projects are completed using first-rate excavation practices, and are led by experienced foremen to ensure that every project maintains a safe construction environment. When looking for excavation services or septic installations, look no further than Piedmont Excavation & Septic.

"We were very happy with Jim’s work"

JOANN D on April 2024

Services Include: - Excavation - Site Work and Preparation (Includes tree removal) - Site Clearing, Leveling & Grading - Septic Install, Repairs and Evaluations (No septic tank pumping) Piedmont Excavation & Septic, LLC is an excavation and site development contractor in central and southern NH. Having been in the earthwork business since 1993, our commitment to our clients is to maintain the highest level of quality while delivering cost efficient results and meeting the most demanding schedules. We believe that safety is achieved through proper planning, training and work site awareness. Our projects are completed using first-rate excavation practices, and are led by experienced foremen to ensure that every project maintains a safe construction environment. When looking for excavation services or septic installations, look no further than Piedmont Excavation & Septic.

"We were very happy with Jim’s work"

JOANN D on April 2024



Plano Builders LLC

PO Box 191
5.00(
13
)

Plano Builders LLC

PO Box 191
5.00(
13
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Plano Builders LLC is located in seacoast area and was established in 1995 by Scott and Denise Gordon and has been developing a strong reputation throughout New Hampshire and Massachusett ever since. Scott's building knowledge is an outcome of being raised up in a building family. The Gordon family is responsible for many sub-divisions in the Pelham, Derry, Salem and Windham area. In the late 70's Scott began his own business, after marrying his wife Denise in 1995 they proceeded to the seacoast area and started Plano Builders LLC. Now with over 40 years of construction and excavating, experience Scott and Denise's aim is: "to help homeowners in caring for their homes without inconvenience." Plano consists of a team of craftsmen with one sole purpose "to honor you and your home." It is important to us that you feel comfortable from the moment we are introduced to the conclusion of the project. We recognize that you are trusting us with your most valuable possession your home. You are trusting us to do an excellent work, for the amount agreed on and have it completed in a timely manner. Plano offers an extensive array of services and we stand behind our work. What can Plano do for you? Do you desire a roof, a septic, an addition, a deck, remodeling a kitchen, a bathroom, a basement, new garage, windows, painting, stumps removed, new home, driveway or clear a lot? Plano's work can be seen all over New Hampshire we have developed in Alton, Wolfeboro, Strafford, Barrington, Lee, Durham, New Durham, Henniker, Kingston, Bentwood, Dover, Derry, Salem, Nottingham, Manchester, Pelham, Windham, Pittsfield, Rochester, Somersworth, Jefferson, and Enfield. Scott and I would enjoy taking an opportunity to discuss with you how we can help you with your household necessities and goals. Thank you for taking the time to review us we anticipate hearing from you soon. Scott and Denise Gordon

"Wonderful to work with. Will hire again!"

Heather N on August 2018

Plano Builders LLC is located in seacoast area and was established in 1995 by Scott and Denise Gordon and has been developing a strong reputation throughout New Hampshire and Massachusett ever since. Scott's building knowledge is an outcome of being raised up in a building family. The Gordon family is responsible for many sub-divisions in the Pelham, Derry, Salem and Windham area. In the late 70's Scott began his own business, after marrying his wife Denise in 1995 they proceeded to the seacoast area and started Plano Builders LLC. Now with over 40 years of construction and excavating, experience Scott and Denise's aim is: "to help homeowners in caring for their homes without inconvenience." Plano consists of a team of craftsmen with one sole purpose "to honor you and your home." It is important to us that you feel comfortable from the moment we are introduced to the conclusion of the project. We recognize that you are trusting us with your most valuable possession your home. You are trusting us to do an excellent work, for the amount agreed on and have it completed in a timely manner. Plano offers an extensive array of services and we stand behind our work. What can Plano do for you? Do you desire a roof, a septic, an addition, a deck, remodeling a kitchen, a bathroom, a basement, new garage, windows, painting, stumps removed, new home, driveway or clear a lot? Plano's work can be seen all over New Hampshire we have developed in Alton, Wolfeboro, Strafford, Barrington, Lee, Durham, New Durham, Henniker, Kingston, Bentwood, Dover, Derry, Salem, Nottingham, Manchester, Pelham, Windham, Pittsfield, Rochester, Somersworth, Jefferson, and Enfield. Scott and I would enjoy taking an opportunity to discuss with you how we can help you with your household necessities and goals. Thank you for taking the time to review us we anticipate hearing from you soon. Scott and Denise Gordon

"Wonderful to work with. Will hire again!"

Heather N on August 2018

Showing 1-10 of 39
Septic Tanks questions, answered by experts

Septic tanks and cesspits are both types of sewage and wastewater systems, but they differ in key ways. The main difference between the two systems is that septic tanks separate sewage from wastewater and allow the latter to flow into a drainage field to filter and disperse into the soil. Cesspits don’t have outlets and instead, store sewage until it needs to be pumped by a professional.

Deciding between an engineered septic system and a conventional one depends on property size, soil quality, local regulations, and environmental factors. If your property has limited space, poor soil, or is close to sensitive environmental features, an engineered system may be required. Professional site evaluations, considering water usage, long-term plans, and budget constraints, can help determine the appropriate choice. Consulting with a septic system professional is crucial for ensuring compliance with regulations and selecting the best system for your property's unique needs.

There are three layers of wastewater in a septic tank: scum (solid waste that floats to the top of the wastewater), liquid (the relatively clean liquid wastewater in between the two other layers), and sludge (solid waste that falls to the bottom of the wastewater). The buildup of sludge is one of the main reasons septic tanks need to be pumped. If the tank is more than 1/3 of the way full with a combination of sludge and scum, it’s time to call a pro for pumping.

How do you set your well’s pressure tank? All you need to do is first drain the tank of water and find the pressure switch. Remove the switch cover and adjust the switch with a wrench—clockwise to increase water pressure, and counter-clockwise to reduce it. Each complete turn of the nut on the switch should equal 2.5 psi. Once this is done, replace the switch cover. All that’s left is to adjust the pressure of the tank itself using an air compressor and a tire gauge to support the new setting.

Several things can ruin a septic tank over time, including dumping harsh chemicals (like bleach and ammonia), pesticides, and paint thinners down your drain because they can kill the bacteria in your septic tank. You should also make sure to only flush waste and toilet paper in your toilet—otherwise, you could clog your system.

The New Durham, NH homeowners’ guide to septic tank services

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