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TRUSTED BY JAFFREY, NH HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon27
    Verified excavation services reviews

Top-Rated Excavation pros in Jaffrey - Updated Nov 2026

McAdams Excavation & Landscaping
3.9(
27
)
Landscape - Minor Grading or ReslopingExcavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For Business

Serving Jaffrey, NH and surrounding areas

Approved

In business since 2017

Free estimates

Small jobs welcome

"The attention to detail of the work was top rate. We had three sink holes in our yard that they took care of for us, as well as spreading loam for us to start a lawn in the spring. I very highly recommend McAdams Excavation."
Response time1 day
22 neighbors recently requested a quote
Recommended by85%of homeowners
Alliance company
New to Angi
Building Site - Preparation and ClearingExcavation - Major Grading or ReslopingBuilding Site - Preparation and Clearing - For Business

Serving Jaffrey, NH and surrounding areas

Approved

Owned and operated by Jide Williams, Alliance is a full-service site preparation and excavation company. We specialize in transforming raw land into build-ready sites through expert grading, land clearing, and demolition. Whether you need materials delivered, debris hauled out, or complex tank and stump removal, we provide the heavy equipment and the "lead contractor" expertise to keep your project on schedule and on budget.

Retaining wall
Retaining wall
Process
Retaining wall
Retaining wall

+33

3 neighbors recently requested a quote
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Excavating FAQs, answered by experts

Consultation with the local government helps identify necessary permits, avoid project delays or legal issues, and protect project integrity.

Professional installers often include a deep layer of crushed gravel under permeable pavers to allow more runoff to soak through into the soil below. Many installations will include multiple layers of gravel, with coarser aggregate at the base and finer aggregate that sits on top of that bottom layer. Above the gravel, you’ll often find coarse sand that helps reduce paver shifting over time. Some permeable paver designs include a water collection system set into the gravel layer to route runoff to a safe area for disposal.

Prior to excavation, you should prepare the dig site and call 311 before you sign anything.

To get your site ready for excavation, you should move anything in the area that isn’t affixed to the land. You can save money on the excavation by removing hardscaping, including walkways, decks, concrete patios, and paver patios.

Before you carry out any digging, you should call 311 to confirm that there are no utility lines running through your excavation site. Skipping this step could lead to severe injury and property damage if your excavator hits a water, sewage, or gas line.

Most residential basements are 8 to 10 feet deep. You can dig deeper depending on building codes, but it does become more difficult. You’ll likely need to install stronger foundation walls and additional supports to handle the increased load. Depending on the water table, you may also need a water management system. Clay soil can support a deeper foundation than sandy soil. A structural engineer will be able to tell you the maximum, feasible depth.

You should dig 3 to 6 inches deep for plastic edging. Dig as wide as you need to fit your plastic edging into it—2 inches is usually sufficient.

The Jaffrey, NH homeowners’ guide to excavation services

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