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Top-Rated Excavation pros in Northwood - Updated Nov 2026

Avatar for E & Z EXCAVATION LLC
E & Z EXCAVATION LLC
5.0(
23
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+1 more

Serving Northwood, NH and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Eric was right on point and identified the solution and scope of work very promptly. He is a very good communicator via text and in person. I thought his pricing was very fair. He worked to install gutter on my roof, drainage piping, and a trench drain on the side of my driveway to mitigate erosion. He rototilled, fertilized, and installed sod on my formerly eroded front lawn. The work came out fantastic and my neighbors keep complementing me on how nice my house looks now."
Rock wall
Rock wall
Rick wall
Culvert
Culvert

+8

Response time8 hrs
Recommended by90%of homeowners
Gagnons Excavating, LLC
4.8(
4
)
Building Site - Preparation and Clearing

Serving Northwood, NH and surrounding areas

Approved

In business since 2012

Free estimates

Customers say: Quick response

"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."
Response time1 day
Recommended by100%of homeowners
Avatar for NH Projects LLC
NH Projects LLC
5.0(
20
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For Business

Serving Northwood, NH and surrounding areas

Approved

In business since 2021

Free estimates

Customers say: Quick response

"NH Projects LLC Timely and meticulous . Showing great attention to detail. We had some water damage and the floors and some walls had to be replaced. We had an old electric heater that had to be disconnected and they placed a call to a electrican and he was here that day , we also needed a plumber and they were able to get a plumber here also the same day. Talk about a complete package. We were beyond pleased. 5 ***** stars no doubt. Paul & Christina from Nashua NH."
Our Work
Our Work
Our Work
Our Work
Our Work

+8

Response time5 hrs
Response rate87%
1 neighbors recently requested a quote
Avatar for Action Plumbing Heating And Air
Action Plumbing Heating And Air
4.9(
92
)
Water or Fuel Tank - Install or Replace

Serving Northwood, NH and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Chase and Mike are very professional and friendly and very pleasant to work with. Chase answered all of my questions about the the job and also gave me some ideas on how to do some insulation. Very good work.I highly recommend theses guys for any plumbing project. I would hire this company again. Nelson"
Response time1 day
Response rate89%
19 neighbors recently requested a quote
Avatar for Carideo Services
Carideo Services
4.8(
39
)
Excavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For Business

Serving Northwood, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Frank did a great job on everything I wanted done. He repaired my shed,put up new outdoor lighting and also extra lighting in my basement. He also did a great job repairing the warped shelving under my sink. Frank did not loaf around. He continuously worked. I would certainly hire Frank again for any future repairs. I would recommend Frank for any of your projects."
Waterfront Excavating
Waterfront Excavating
Propane Tank Installment
Uunderground Propane tank
TJ MAXX Sign

+7

Response time6 hrs
Response rate98%
10 neighbors recently requested a quote
Corriveau Construction Company
5.0(
6
)
Building Site - Preparation and ClearingExcavation - Major Grading or Resloping

Serving Northwood, NH and surrounding areas

Approved

In business since 1972

Free estimates

Customers say: Quick response

"I could not be happier with the work performed by Bob and his team. They were extremely profession, delivered everything promised, were prompt and friendly! Our project turned out even better than we thought possible and the cost was extremely fair. I would highly recommend Corriveau Construction!!"
Response time1 day
6 neighbors recently requested a quote
Recommended by60%of homeowners
Tseranos Construction, LLC
5.0(
4
)
Building Site - Preparation and ClearingExcavation - Major Grading or Resloping

Serving Northwood, NH and surrounding areas

Approved

In business since 2014

Credit card accepted

Customers say: True professional

"We hiredTseranos Construction to add an addition to our home, mudroom, garage with primary suite above. I would highly recommend this company, work was completed on time and we were very happy with quality of work. The owner was always available to answer questions and help us through the construction process."
Response time12 hrs
Recommended by100%of homeowners
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Showing 1-10 of 114

FAQs for excavation projects in Northwood, NH

Depth depends on the type of installation and the regulations in your area. Water supply lines typically require 24 inches, while drainage pipes are often installed 36 inches below grade. For most general projects, a depth of 12 to 24 inches and a width of about eight inches is sufficient. Sticking to these specs keeps your utilities safe, code-compliant, and easier to maintain later.

When you need to run utilities underground, you’ve got two main options: boring or trenching. Boring employs directional drilling to install utilities without exposing a continuous channel, while trenching requires excavating an open channel to place utilities securely. Directional drilling preserves landscape integrity, whereas trenching provides direct access for installation, albeit with greater surface disruption. This clear comparison helps you select the method best suited to your project.

Plan on 12 hours to dig 100 linear feet when the soil is cooperative and you can work continuously. This timeframe applies when work is performed consistently and methodically. Factors such as rocky soil, tree roots, obstructions, and frozen ground increase the overall duration, demanding extra planning and effort. Comprehensive operational planning ensures that every challenge is managed efficiently and the project is completed on schedule.

If you want your yard to look untouched, laying fresh sod over the trench is the quickest fix. New sod needs 30 to 45 days to root and blend with the rest of your lawn. A local sod pro can provide you with a firm timeline and tips to ensure the grass takes hold and maintains your curb appeal.

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.