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TRUSTED BY ALLENSTOWN, NH HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon35
    Verified excavation services reviews

Find Excavation pros in Allenstown

Avatar for NH Dirt

NH Dirt

New on AngiNew on Angi
Approved Pro

NH Dirt

New on AngiNew on Angi
Approved Pro
5 years of experience
Free onsite estimate

"We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at NH Dirt LLC strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction."

"We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at NH Dirt LLC strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction."


Avatar for McLaughlin Contractors, LLC

McLaughlin Contractors, LLC

New on AngiNew on Angi
Approved Pro

McLaughlin Contractors, LLC

New on AngiNew on Angi
Approved Pro
7 years of experience
Free onsite estimate

McLaughlin Contractors 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.

McLaughlin Contractors 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.


Avatar for Derry Plumbing & Heating

Derry Plumbing & Heating

4.50(
30
)
Approved Pro

Derry Plumbing & Heating

4.50(
30
)
Approved Pro
Customers say: Quality work
36 years of experience
Free onsite estimate

If you�re familiar with plumbing, you know that doing it right takes just the right recipe: two parts job knowledge and three parts skill. At Londonderry Plumbing and Heating, we provide everything you need to secure the perfect plumbing solution, a mixture that will do you right, just like home cooking! No job is too small or too challenging for our dedicated professionals! Londonderry Plumbing and Heating can tackle your most challenging plumbing problems and do so at affordable rates. If you are looking for a plumber who is highly qualified, quick to respond and a pleasure to do business with, give us a call. We look forward to adding you to our list of satisfied customers!

"Great service! Emergency service and done within the day!"

Bonnie S on May 2025

If you�re familiar with plumbing, you know that doing it right takes just the right recipe: two parts job knowledge and three parts skill. At Londonderry Plumbing and Heating, we provide everything you need to secure the perfect plumbing solution, a mixture that will do you right, just like home cooking! No job is too small or too challenging for our dedicated professionals! Londonderry Plumbing and Heating can tackle your most challenging plumbing problems and do so at affordable rates. If you are looking for a plumber who is highly qualified, quick to respond and a pleasure to do business with, give us a call. We look forward to adding you to our list of satisfied customers!

"Great service! Emergency service and done within the day!"

Bonnie S on May 2025


"The 1964 bulkhead I had out back was replaced a year ago, but the wood and insulation underneath (the ceiling of the walkway underground to my basement under the back living room) took in water damage and the area was very musty for years. Tom Morneault of Morneault Environmental was the only guy I could find that would not only treat the wood to remove anything growing on it/get rid of the smell, but his team also removed old wood and insulation and re-insulated for me as part of the deal, which was still hundreds of dollars cheaper than the other companies I talked to, which would only remove the old wood and insulation, they don't put anything back in. Tom's team was here by 8:30 this morning and by 2pm they were done and it looks fantastic and smells crisp and clean. They didn't even stop for breaks or have to make any trips to get supplies, they had them all in the van, including the insulation boards. Very highly recommended if anyone is in the same situation."

Stephen T on June 2024

Veteran owned and operated with over a decade of experience in the demolition and environmental services.

"The 1964 bulkhead I had out back was replaced a year ago, but the wood and insulation underneath (the ceiling of the walkway underground to my basement under the back living room) took in water damage and the area was very musty for years. Tom Morneault of Morneault Environmental was the only guy I could find that would not only treat the wood to remove anything growing on it/get rid of the smell, but his team also removed old wood and insulation and re-insulated for me as part of the deal, which was still hundreds of dollars cheaper than the other companies I talked to, which would only remove the old wood and insulation, they don't put anything back in. Tom's team was here by 8:30 this morning and by 2pm they were done and it looks fantastic and smells crisp and clean. They didn't even stop for breaks or have to make any trips to get supplies, they had them all in the van, including the insulation boards. Very highly recommended if anyone is in the same situation."

Stephen T on June 2024


Corriveau Construction Company

5.00(
5
)
Approved Pro

Corriveau Construction Company

5.00(
5
)
Approved Pro
Customers say: Quick response
28 local quotes requested
53 years of experience

Bob has been in business for 50 years. Started working on his own property and was disappointed in the quality of other people's work so he decided to go leave a career in electronics sales and into business himself.Became a career in building and developing.Built subdivisions.Built roads and all site work for new homes.

"This is the best construction pro I had in my life. If there is anyone's looking for the best construction crew this company is the best. I've never had anyone in my life as good as Corriveau construction company. They went beyond and above what I expected. "

Bill A on September 2025

Bob has been in business for 50 years. Started working on his own property and was disappointed in the quality of other people's work so he decided to go leave a career in electronics sales and into business himself.Became a career in building and developing.Built subdivisions.Built roads and all site work for new homes.

"This is the best construction pro I had in my life. If there is anyone's looking for the best construction crew this company is the best. I've never had anyone in my life as good as Corriveau construction company. They went beyond and above what I expected. "

Bill A on September 2025


Dolloff Lawncare

4.25(
10
)
Approved Pro

Dolloff Lawncare

4.25(
10
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
23 years of experience

We at Dolloff are a team of like minded individuals that have a common goal of giving customers creative and high quality landscaping at a fair price. Dolloff Landscaping has the roots established to provide you with a great landscape. Our goal is to provide the best installation and quality service. We take pride in working on your yard as if it were our own. Take pride in Dolloff, because we take pride in your land.

"Mr. Dolloff was prompt in his response to our inquiry into landscaping projects we were considering. He gave us a free estimate on several projects. The cost seemed very fair and we had him complete a quarter of the entire project ~ grooming a hillside with severe erosion and creating a parking area for 2 cars. The hillside is beautiful. Exactly what we wanted and better than we expected. The parking area was not what I would call satisfactory. But in all honesty, they completed both jobs on time but unfortunately it was just the day before we got all that heavy rain the weekend of October 21st. We are planning for him to complete the other landscaping we need down and he offered to clean up the parking area as soon as the weather settles down."

Kathie C on November 2016

We at Dolloff are a team of like minded individuals that have a common goal of giving customers creative and high quality landscaping at a fair price. Dolloff Landscaping has the roots established to provide you with a great landscape. Our goal is to provide the best installation and quality service. We take pride in working on your yard as if it were our own. Take pride in Dolloff, because we take pride in your land.

"Mr. Dolloff was prompt in his response to our inquiry into landscaping projects we were considering. He gave us a free estimate on several projects. The cost seemed very fair and we had him complete a quarter of the entire project ~ grooming a hillside with severe erosion and creating a parking area for 2 cars. The hillside is beautiful. Exactly what we wanted and better than we expected. The parking area was not what I would call satisfactory. But in all honesty, they completed both jobs on time but unfortunately it was just the day before we got all that heavy rain the weekend of October 21st. We are planning for him to complete the other landscaping we need down and he offered to clean up the parking area as soon as the weather settles down."

Kathie C on November 2016


S.L. Dionne Landscaping and Lawn Maintenance, LLC

4.81(
18
)
Approved Pro

S.L. Dionne Landscaping and Lawn Maintenance, LLC

4.81(
18
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
11 local quotes requested

S.L. Dionne Landscaping and Lawn Maintenance, LLC, provides a wide variety of brick and stone hardscape work throughout all of the Nashua and surrounding areas of New Hampshire. We pride ourselves on our attention to detail and our customer retention throughout the years.

"Total care given on this project from start to finish. Excellent work."

Wendy O on December 2021

S.L. Dionne Landscaping and Lawn Maintenance, LLC, provides a wide variety of brick and stone hardscape work throughout all of the Nashua and surrounding areas of New Hampshire. We pride ourselves on our attention to detail and our customer retention throughout the years.

"Total care given on this project from start to finish. Excellent work."

Wendy O on December 2021


Avatar for Northern Edge Land Maintenance

Northern Edge Land Maintenance

5.00(
4
)
Approved Pro

Northern Edge Land Maintenance

5.00(
4
)
Approved Pro
20 local quotes requested
Free onsite estimate

With over 7 years of hands-on experience, we specialize in forestry mulching, lawn clean-ups, minor and major grading, and tree stump grinding. Whether you need land cleared, your property reshaped, or your yard refreshed, we bring the equipment, skill, and precision to get the job done right. We're committed to delivering efficient, high-quality results that improve your landscape and increase property value. Locally owned and operated, we take pride in reliable service and lasting outcomes tailored to your needs.

"Derrik removed a fair amount of sand box sand that i was having a hard time disposing of, then dug out 5 cement footing to our old playground and finally leveled and landscaped a section of our back yard. I couldn't be more pleased with his work. He even discounted his original estimate because we did not need top soil and I and my neighbor assisted ( if you want to call it that) some of the raking. I highly recommend Derrick and Northen Edge phil and beth"

Philip M on November 2025

With over 7 years of hands-on experience, we specialize in forestry mulching, lawn clean-ups, minor and major grading, and tree stump grinding. Whether you need land cleared, your property reshaped, or your yard refreshed, we bring the equipment, skill, and precision to get the job done right. We're committed to delivering efficient, high-quality results that improve your landscape and increase property value. Locally owned and operated, we take pride in reliable service and lasting outcomes tailored to your needs.

"Derrik removed a fair amount of sand box sand that i was having a hard time disposing of, then dug out 5 cement footing to our old playground and finally leveled and landscaped a section of our back yard. I couldn't be more pleased with his work. He even discounted his original estimate because we did not need top soil and I and my neighbor assisted ( if you want to call it that) some of the raking. I highly recommend Derrick and Northen Edge phil and beth"

Philip M on November 2025


Avatar for Chandler Construction

Chandler Construction

5.00(
1
)
Approved Pro

Chandler Construction

5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
37 local quotes requested

We are a fully insured growing excavation company in southern NH. We specialize in house lots, additions, barn/garage slabs, drainage systems, yard reclamation, land reshaping, stumping, tree removal, utility trenching and house demo. 22 years of experience. we take pride in our work and try to satisfy the customer beyond expectation on every job.

"Was very pleased with the results great company"

James S on March 2022

We are a fully insured growing excavation company in southern NH. We specialize in house lots, additions, barn/garage slabs, drainage systems, yard reclamation, land reshaping, stumping, tree removal, utility trenching and house demo. 22 years of experience. we take pride in our work and try to satisfy the customer beyond expectation on every job.

"Was very pleased with the results great company"

James S on March 2022


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
21 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

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Showing 1-10 of 211
Excavating questions, answered by experts

In the United States, a depth of 36 inches (three feet) for underground water lines is the accepted industry standard. This depth varies from location to location based on local conditions. In areas with colder winters, they may be buried deeper to prevent frozen well water pipes : This is usually at least six inches below the frost level. The International Plumbing Code calls for a minimum of 12 inches below grade.

Professionals who complete perc tests can usually do them in a single day. Including excavating to expose the test site, filling the hole with water, and monitoring it while it drains, you can expect the test to take between four and eight hours total. It’s possible that you’ll get the results the same day, but some companies may take a few days to get official results.

Yes, trenchers can go through gravel. Gravel is made up of smaller, softer rocks that certain trenchers are able to cut through. Just be sure to use a rock wheel trencher or chain trencher, both of which are made to cut through rocky landscapes and gravel pathways without dulling the teeth or chain.

A trench that is less than 5 feet deep often doesn't require a protective system. Most residential trenches will not go this deep (the typical residential drainage trench is just 18 inches deep). In the event that an excavator needs to dig more than 5 feet beneath the surface, a protective system is required unless the excavation is in entirely stable rock.

This depends on your location. Sewer lines can be buried anywhere from 18 inches to 8 feet deep. People in colder climates will have deeper sewer lines than people in warmer climates due to the dangers of the frost line and freezing pipes. Permits are required for all aspects of septic system installation, so the city should have the building plans for your system, which will tell you how deep your lines are.

The Allenstown, NH homeowners’ guide to excavation services

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