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Top-Rated Excavation pros in Alton Bay - 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 Alton Bay, NH and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Had Eric come back last week to rebuild our driveway which involved removing several large rocks and a couple of stumps then regrading the entire drive. Looks great! Work completed as promised and for a fair price. Highly recommend!"
Rock wall
Rock wall
Rick wall
Culvert
Culvert

+8

Response time8 hrs
1 neighbors recently requested a quote
Recommended by90%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 Alton Bay, 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 Northeast Stump Grinding, LLC
Northeast Stump Grinding, LLC
4.7(
55
)
Excavation - Major Grading or Resloping

Serving Alton Bay, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Offers commercial services

Customers say: True professional

"Tree stumps have been removed and the areas look like the stumps had never been there. It was done professionally. The proprietor called me shortly after I posted the project Sunday evening. We agreed that he would call me early Monday afternoon. He did so and asked if he could bring his equipment should we agree on a price. That did happen and I am very satisfied!"
Long Island Stump Grinding
Response time1 day
Response rate90%
15 neighbors recently requested a quote
Avatar for Waterscapes of New England
Waterscapes of New England
3.9(
26
)
Excavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For Business

Serving Alton Bay, NH and surrounding areas

Approved

In business since 1985

Free estimates

Warranties offered

"We contacted Carl Campbell who met with us within a few days of our call.? Carl was professional, detailed and listened to our suggestions.? Carl also provided us with ideas on how to make the patio look and feel more like it was part of the landscape.? Carl is also very knowledgeable about the permit process for both the town as well as the wetlands and zoning.? Carl also sent us information on pavers and designs.? Once the final details were in place, the patio was completed within two days.? I would highly recommend Carl and his crew and will use them again in the future."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+9

2 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Quality Landscaping
Quality Landscaping
3.4(
27
)
Excavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For Business

Serving Alton Bay, NH and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"I hired Jacob last year, he was outstanding. This year I called on a Thursday, I was snowed in. He said he'd be there that day but never came. I called Friday, he promised to come out. Never came. Been trying to reach him for 48 hours and just get his voice mail (but box is full can't leave a message). He's not taking my calls and hasn't called me back to let me know if there's a problem. They did exceptional work for me the entire last winter and were swift and expedient, but this year, they're just no showing on two appointments and not returning calls. I'd just like professional service like they were last year."
Retaining Wall
Retaining Wall
After
After
Retaining Wall

+30

Response time1 day
19 neighbors recently requested a quote
Recommended by94%of homeowners
C&L Cass Construction
2.8(
2
)
Building Site - Preparation and ClearingExcavation - Major Grading or Resloping

Serving Alton Bay, NH and surrounding areas

Approved

Small jobs welcome

Offers commercial services

Customers say: Quick response

"Chris worked with my schedule to get a foundation in and also fixed up my driveways, made great suggestions. He showed up and completed the work exactly as he promised and kept the site tidy all through the project. A pleasure to work with!"
8 neighbors recently requested a quote
Recommended by100%of homeowners
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Showing 1-10 of 101

FAQs for excavation projects in Alton Bay, 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 Alton Bay, NH homeowners’ guide to excavation services

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