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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon47
    Verified excavation services reviews

Find Excavation pros in Northwood

Avatar for Chandler Construction

Chandler Construction

200 New Boston Rd
5.00(
1
)
Approved Pro

Chandler Construction

200 New Boston Rd
5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
33 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


Tobey Earth Materials & Excavation

PO Box 363
5.00(
1
)
Approved Pro

Tobey Earth Materials & Excavation

PO Box 363
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
12 years of experience

Tobey Earth Materials & Excavation 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.

"N/A"

Diana on July 2022

Tobey Earth Materials & Excavation 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.

"N/A"

Diana on July 2022


Gagnons Excavating, LLC

334 Main Street
4.75(
4
)
Approved Pro

Gagnons Excavating, LLC

334 Main Street
4.75(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 years of experience

We are an excavation company with over 40 years of experience located in East Wakefield, NH looking to assist you in completing all your projects. We are fully insured and reasonably priced!

"Roland was very professional and worked hard! We wish we had found him sooner. We had a couple other companies â tryâ and do the work to only say the work could not be done. Roland came and not only did the work but did a great job! We would highly recommend him. Heâ s professional, hard working and very fair with pricing! Will definitely use him again for future jobs."

Phyllis P on November 2023

We are an excavation company with over 40 years of experience located in East Wakefield, NH looking to assist you in completing all your projects. We are fully insured and reasonably priced!

"Roland was very professional and worked hard! We wish we had found him sooner. We had a couple other companies â tryâ and do the work to only say the work could not be done. Roland came and not only did the work but did a great job! We would highly recommend him. Heâ s professional, hard working and very fair with pricing! Will definitely use him again for future jobs."

Phyllis P on November 2023


Avatar for Derry Plumbing & Heating

Derry Plumbing & Heating

41 Birch St
4.50(
30
)
Approved Pro

Derry Plumbing & Heating

41 Birch St
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


Corriveau Construction Company

13 S Bow Rd
5.00(
5
)
Approved Pro

Corriveau Construction Company

13 S Bow Rd
5.00(
5
)
Approved Pro
Customers say: Quick response
34 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


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
25 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 KMG Services LLC

KMG Services LLC

Fremont Rd
No reviews yet

KMG Services LLC

Fremont Rd
No reviews yet
3 years of experience

Land clearing, dirt driveways / reclaimed asphalt, yard expansions, land leveling/grading, drainage, over growth clearing, junk removal, estate removal, select demo/ complete demo and so much more.

Land clearing, dirt driveways / reclaimed asphalt, yard expansions, land leveling/grading, drainage, over growth clearing, junk removal, estate removal, select demo/ complete demo and so much more.


Avatar for Fowler Contracting

Fowler Contracting

14 Whippoorwill Drive
5.00(
7
)

Fowler Contracting

14 Whippoorwill Drive
5.00(
7
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Over the years, I have learned to appreciate the value people place on good, honest work and having someone care for their property as if it were their own. As I have grown, my commitment to doing right by the consumer and being upfront and honest has never let me down; it has only expanded my network of great customers and friends. I possess extensive knowledge in home repair and commercial and residential property maintenance, which has saved many people time and money while efficiently completing numerous tasks. As property owners, we all know how daunting any project can be! I thrive on finding the correct repair options and innovative solutions to unique problems to ensure every job is completed successfully. I look forward to working with you. Call or click for your quote today!

"Jesse was able to adjust his schedule to accommodate the other contractors. And a very reasonable price. Friendly and great to do business with."

Paul K on August 2024

Over the years, I have learned to appreciate the value people place on good, honest work and having someone care for their property as if it were their own. As I have grown, my commitment to doing right by the consumer and being upfront and honest has never let me down; it has only expanded my network of great customers and friends. I possess extensive knowledge in home repair and commercial and residential property maintenance, which has saved many people time and money while efficiently completing numerous tasks. As property owners, we all know how daunting any project can be! I thrive on finding the correct repair options and innovative solutions to unique problems to ensure every job is completed successfully. I look forward to working with you. Call or click for your quote today!

"Jesse was able to adjust his schedule to accommodate the other contractors. And a very reasonable price. Friendly and great to do business with."

Paul K on August 2024


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 Granite State Black Toppers

Granite State Black Toppers

48 Londonderry Turnpike
No reviews yet

Granite State Black Toppers

48 Londonderry Turnpike
No reviews yet

Let Granite State Black Toppers put you on solid ground. At Granite State Black Toppers, we are dedicated to delivering high-quality material, experienced installation or repair, and the best customer care in the business. We pay attention every aspect of your project to help ensure that your project is completed on time and on budget, looks great, and can stand up to years of foot or vehicle traffic. We take your project seriously and the team at Granite State Black Toppers is focused on your satisfaction. Put our team to work on your next project. Contact Granite State Black Toppers today to request a quote.

Let Granite State Black Toppers put you on solid ground. At Granite State Black Toppers, we are dedicated to delivering high-quality material, experienced installation or repair, and the best customer care in the business. We pay attention every aspect of your project to help ensure that your project is completed on time and on budget, looks great, and can stand up to years of foot or vehicle traffic. We take your project seriously and the team at Granite State Black Toppers is focused on your satisfaction. Put our team to work on your next project. Contact Granite State Black Toppers today to request a quote.

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Excavating questions, answered by experts

If you’re planning to dig on your property, you’ll need to check for underground utility lines. Call the national call-before-you-dig 811 number. Once connected to an operator, you can schedule a site visit to mark underground lines. This way, you won’t accidentally dig into pipes and can cause major (read: costly) issues.

You can bury underground electrical wire six inches deep—but only if you use a rigid metal electrical conduit. For rigid, non-metallic conduits, bury the wire at least 12 inches deep. If using an underground feeder cable rated for direct burial, you'll need to place it at least 18 inches deep, as it has no conduit for extra protection.

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.

Excavation and grading are both generally necessary for designing your foundation, and leveling the ground where your foundation will go. These steps can also prepare the area by removing vegetation and anything else that could interfere with your home’s foundation.

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 Northwood, NH homeowners’ guide to excavation services

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