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TRUSTED BY BARRINGTON, NH HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon45
    Verified excavation services reviews

Top-Rated Excavation pros in Barrington - Updated Nov 2026

Gagnons Excavating, LLC
4.8(
4
)
Building Site - Preparation and ClearingLandscape - Minor Grading or Resloping

Serving Barrington, NH and surrounding areas

Approved

In business since 2012

Free estimates

Customers say: Quick response

"I really appreciated the great excavation and fill work that Roland Gagnon did for me. This was a driveway drainage project that required low spot filling and proper grading of the area. The driveway now has the proper slope and is draining properly. Roland went above and beyond my expectations, he will be my first call for any future work."
Response time1 day
Recommended by100%of homeowners
Four Tree Landscaping
4.7(
88
)
Landscape - Minor Grading or Resloping

Serving Barrington, NH and surrounding areas

Approved

In business since 2012

Free estimates

Offers commercial services

"This is our second season using Four Tree Landscaping, and once again, we are highly impressed. The quality of work is outstanding, and you can truly see the pride Matt and his crew take in maintaining our property. They pay attention to the small details, keep everything looking clean and sharp, and consistently go above and beyond. It’s clear they care about doing the job right and making sure their customers are happy. Thank you, Matt and crew, for all your hard work — it does not go unnoticed. We look forward to many more seasons working together!"
2 neighbors recently requested a quote
Recommended by74%of homeowners
Avatar for Carideo Services
Carideo Services
4.8(
39
)
Excavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For BusinessLandscape - Minor Grading or Resloping

Serving Barrington, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Mr. Carideo did a great job on my small project. He tried to save me money on the materials by using a different thickness of wood. I ultimately decided to not go with his recommemdation. But I was very happy that he consulted me first and that he was trying to save me money. He handled the project in a reasonable amount of time. Actually sooner than I thought because it was around Christmas and New Years. His fee was in line with other estimates. I would use his services again."
Waterfront Excavating
Waterfront Excavating
Propane Tank Installment
Uunderground Propane tank
TJ MAXX Sign

+7

Response time6 hrs
Response rate98%
9 neighbors recently requested a quote
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Excavating FAQs, answered by experts

Yes, you can excavate in the winter, but it might make the job harder. Frozen ground is harder to dig, and snow or ice can make the work site more hazardous. A contractor may need special equipment and techniques, such as ground-thawing methods, to break through frozen soil. Although winter excavation is possible, it may take longer and be more costly than excavating during warmer months.

If you don’t wish to dig it out and convert it into a finished basement, you can still encapsulate your crawl space to protect it from damage for an average cost of $5,500. Finishing a crawl space beyond this isn’t really worthwhile, as the low ceilings mean you won’t be able to use the area as living space.

A walk-behind trencher can cut through roots as long as they’re not too thick, making a project much easier than digging with a shovel and other hand tools. Assess your terrain and the number of trees in the surrounding area to determine if a walk-behind trencher will ease the job. Digging a trench by hand is much more time-consuming and labor-intensive. 

Trenchers can dig holes as narrow as 4 inches or as wide as 4 feet. Check the specifications of the trencher you rent or buy to determine how wide it will cut into the landscape. Better yet, let the excavation company know how wide you’d like the trench to be, and they can help you choose the right trencher for the job (or do it for you).

Sewer lines can be buried anywhere from 18 inches to 8 feet deep, with a common average depth between 18 and 30 inches. The exact depth depends on local factors like climate and soil type. In colder regions, pipes must be buried deeper (below the frost line) to prevent freezing, sometimes as deep as 8 feet. The digging depth can also impact the cost of sewer line replacement. To find the specific depth for your property, you can check the building plans for your system, which should be on file with your city or local sanitation department since permits are required for installation.

The Barrington, NH homeowners’ guide to excavation services

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