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Find Septic tank pros in Greenfield

Innovative Septic Solutions

4.59(
27
)
Approved Pro

Innovative Septic Solutions

4.59(
27
)
Approved Pro
Customers say: Quality work
30 local quotes requested
40 years of experience

Serving all of Hillsborough and the surrounding counties, the professionals at Innovative Septic Solutions are the go-to, full service septic designers and installers you can trust to get the job done right! Call now for a consultation!

"I was selling a 71 year old home and the inspection revealed a failing septic system. I had called another company as well as Bob snd had opted to use the other company which was local in Merrimack. Sadly I was told it would be 6 to 8 weeks. I could not wait that long since the house needed to be sold before winter. I called Bob and he began the same day! He explained he was also an engineer and could do the required septic design himself. He was able to have the entire job done in 2 weeks and we had a contract to sell before he finished. He was a delight to work with and I woukd recommend this company without any hesitation."

Betty F on October 2025

Serving all of Hillsborough and the surrounding counties, the professionals at Innovative Septic Solutions are the go-to, full service septic designers and installers you can trust to get the job done right! Call now for a consultation!

"I was selling a 71 year old home and the inspection revealed a failing septic system. I had called another company as well as Bob snd had opted to use the other company which was local in Merrimack. Sadly I was told it would be 6 to 8 weeks. I could not wait that long since the house needed to be sold before winter. I called Bob and he began the same day! He explained he was also an engineer and could do the required septic design himself. He was able to have the entire job done in 2 weeks and we had a contract to sell before he finished. He was a delight to work with and I woukd recommend this company without any hesitation."

Betty F on October 2025


Avatar for Septic Designs of NH, LLC

Septic Designs of NH, LLC

4.75(
25
)
Approved Pro

Septic Designs of NH, LLC

4.75(
25
)
Approved Pro
Customers say: Terrific value
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
23 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


Roadway Excavators Inc.

5.00(
2
)
Approved Pro

Roadway Excavators Inc.

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 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 W. Santos Construction Services, LLC

W. Santos Construction Services, LLC

3.00(
1
)

W. Santos Construction Services, LLC

3.00(
1
)
17 years of experience

W. Santos Construction Services, LLC is a family owned and operated business. We specialize in Excavation work, land leveling and clearing, Septic System installation, foundation excavation and project management. We will work with you to keep your project in budget and completed on time. We are fully licensed and Insured. Serving New England since 2008!

"Did not hire the professional"

Larry C on May 2023

W. Santos Construction Services, LLC is a family owned and operated business. We specialize in Excavation work, land leveling and clearing, Septic System installation, foundation excavation and project management. We will work with you to keep your project in budget and completed on time. We are fully licensed and Insured. Serving New England since 2008!

"Did not hire the professional"

Larry C on May 2023


Avatar for New Hampshire Groundscapes

New Hampshire Groundscapes

5.00(
2
)

New Hampshire Groundscapes

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


LJM Construction, LLC

No reviews yet

LJM Construction, LLC

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!


Wheaton Excavating LLC

5.00(
2
)

Wheaton Excavating LLC

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

At Wheaton Excavating LLC we provide top quality and professional workmanship for the residential and commercial markets. working with our clients one on one with diligence,From concept to finish. We offer free estimates and can accept most forms of payment including credit cards.

At Wheaton Excavating LLC we provide top quality and professional workmanship for the residential and commercial markets. working with our clients one on one with diligence,From concept to finish. We offer free estimates and can accept most forms of payment including credit cards.


Wicked Web Design & SEO

5.00(
7
)

Wicked Web Design & SEO

5.00(
7
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

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.


Eastern Slope Construction

5.00(
1
)

Eastern Slope Construction

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Professional Excavation & General Contracting services. Family owned & operated in Dublin, NH serving the Monadnock Region with more than 10 Years experience, Eastern Slope Construction LLC, can provide expertise in a wide variety of services including residential, industrial, and commercial projects. Fully insured & locally owned and operated we are able to offer a broad range of services.

Professional Excavation & General Contracting services. Family owned & operated in Dublin, NH serving the Monadnock Region with more than 10 Years experience, Eastern Slope Construction LLC, can provide expertise in a wide variety of services including residential, industrial, and commercial projects. Fully insured & locally owned and operated we are able to offer a broad range of services.


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Septic Tanks questions, answered by experts

The precharged pressure tank should start at around 28 psi. The two pressure settings of note are the cut-in and cut-out pressure. The well pump starts when the tank reaches the minimum cut-in pressure. It turns off when the tank reaches the maximum cut-out pressure. The desired water pressure in the household is usually a few psi above the cut-in number. The difference between the cut-in and cut-out pressure settings should be 20 psi. Typical settings for household applications include 20/40, 30/50, and 40/60.

A septic tank should be pumped once every three to five years or sooner if there’s a problem with your plumbing backing up. A large 5+ person family who frequently has guests over using the bathroom or who pours a lot of water and food down the garbage disposal may need to get it pumped closer to every two years.

Age is certainly a factor in well pump failure. The older your pump, the more likely it is to fail. 

Beyond age, other factors can cause your well pump to fail, too. Things like poor water quality can cause sediment buildup in your pump. Without proper cleaning, your pump can seize up and fail. Having a dry well for too long can also cause your pump to fail, as it keeps working even though there's no water for it to pull. 

Most deep wells can be expected to last somewhere between 30 and 50 years. This assumes that the well and all of its components are properly maintained on a regular basis. During this time, it is unlikely that modern deep wells will run dry over the course of their typical lifespan. That is one of the biggest benefits of digging a deeper well. 

The size of your septic tank plays a role in determining the proper size of the drain or leach field. As a general rule, you should have 1 square foot of drain field size per gallon of septic tank capacity. However, you could install a leach field that’s as much as 2.5 square feet per gallon of septic tank capacity. Most professionals determine the right septic tank size and drain field size by the number of bedrooms in the house. A three-bedroom house needs a minimum 1,000-gallon septic tank, for example.

The Greenfield, NH homeowners’ guide to septic tank services

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