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TRUSTED BY CONTOOCOOK, NH HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon30
    Verified excavation services reviews

Top-Rated Excavation pros in Contoocook - Updated Nov 2026

Avatar for NH Projects LLC
NH Projects LLC
5.0(
20
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessLandscape - Minor Grading or Resloping

Serving Contoocook, 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 Ikon Imports LLC
Ikon Imports LLC
5.0(
10
)
Landscape - Minor Grading or ReslopingBuilding Site - Preparation and ClearingExcavation - Major Grading or Resloping

Serving Contoocook, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Credit card accepted

"Konnaugh and his team were a pleasure to work with. They showed up on time, and after demolishing and removing a hot tub and a chicken coop, they left my yard practically spotless! They did such a great job, I would highly recommend them to anyone looking for junk removal or yard cleanup ??"
Organizing Items
Sorting items
Clean Room
Half Full Garage
Empty Garage

+7

Response time1 day
Response rate99%
3 neighbors recently requested a quote
McAdams Excavation & Landscaping
3.9(
27
)
Landscape - Minor Grading or ReslopingExcavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For Business

Serving Contoocook, 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
24 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Quantum Contracting, LLC
Quantum Contracting, LLC
4.3(
38
)
Excavation - Major Grading or ReslopingLandscape - Minor Grading or ReslopingBuilding Site - Preparation and Clearing+2 more

Serving Contoocook, NH and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"We hired Tyler and his crew from Quantum Contracting LLC to build a 10 x 12 pool deck and they did an awesome job. Hardworking, pleasant and professional. They cleaned up the area every night when they left and when the project was completed. Very skilled in their detail and carpentry work. We are so pleased with the end result and look forward to using it this summer. We would hire them again for any project and we highly recommend them. Paula and Stephen Russell"
Small Garden
Complete Landscape Renovation
Grade Work
Brick Pathway
Small Retaining Wall

+23

Response time2 days
Response rate89%
11 neighbors recently requested a quote
Tseranos Construction, LLC
5.0(
4
)
Building Site - Preparation and ClearingExcavation - Major Grading or Resloping

Serving Contoocook, 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
Kaynicki Janitorial
4.7(
13
)
Building Site - Preparation and Clearing

Serving Contoocook, NH and surrounding areas

Approved

In business since 1998

Free estimates

Offers commercial services

"I hired Andy and his crew to clean my windows this spring and I could not be happier. They did an outstanding job, my wife and I are extremely pleased. Great value for the service provided. I definitely be asking them to come back again when I need their services. I would highly recommend Andy and his company for their cleaning services. Very courteous and professional. Sincerley, Kim Doubleday Canterbury, NH"
Response time2 days
12 neighbors recently requested a quote
Recommended by81%of homeowners
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Excavating FAQs, answered by experts

Septic drain lines (or leach lines) are typically buried between 18 and 36 inches underground, and should be at least 6 inches below the surface. These pipes are perforated and surrounded by filtering materials like sand or gravel. Burying the lines at this depth helps minimize odors and allows bacteria and other biological processes in the soil to effectively treat the wastewater. Burying lines too close to the surface can cause issues unless the soil is very compact and stable.

Yes, an excavation company is the best option for land grading and yard leveling. General landscapers might be able to tackle these projects, but an excavation company will do a better job because they’re used to operating the necessary heavy machinery. Landscapers might opt to do the work manually, which takes much longer and could cost you more in labor fees. Finally, excavation companies will understand local regulations and know when you need permits to legalize the work, while a landscaper might not.

Depending on the severity of the freeze and the method used, thawing frozen underground pipes can take anywhere from 30 minutes to several hours. Applying heat directly to the pipe using heat tape, infrared lamps, or hot water jetting can speed up the process. However, patience and careful monitoring are key to avoiding pipe damage.

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.

Call 811 to locate and mark the gas lines at least three days before digging. In many areas, you can dig within 18 inches of the lines, though in some locations, the distance may be further. Check local regulations, as you may need a utility company representative onsite when digging. Document your calls to 811 and precautions taken to avoid gas lines. A homeowner can be held liable for hitting a gas line in some cases, but contacting the proper authorities and following all guidelines can offer protection.

The Contoocook, NH homeowners’ guide to excavation services

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