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Best excavation pros near Warren, NH

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Top-Rated Excavation pros in Warren - Updated Nov 2026

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 Warren, NH and surrounding areas

Approved

In business since 1985

Free estimates

Warranties offered

"This was a complex project with a lot of moving parts.
Several thousand square feet of patio, complicated pool coping and a significant amount of reconstruction. The land I gave Carl to work with was ugly and unstable.
I give Carl an A for time and price because of the value he brings to the table. Not because he's the cheapest or the fastest sprinter.
Some significant challenges materialized over the course of the job that added time and cost to the project. The great thing is Carl rolled with the punches, reacted fast, didn't compromise quality, and never asked for more money.
This was not an easy piece of land to work with. A 40 year old pool patio on shaky foundations.
His foreman/mason Eddie is the only person I trust to do anymore work on my hardscape/landscape. His ability, attention to detail and work ethic is unquestionable.
Carl brings 30 years of experience to the table; great design ideas, flexibility, problem solving, vision..........value!!
Additionally, Carl has a fantastic network of partners that are just as reliable.
I would be happy to provide a reference to all serious buyers.
"
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+9

2 neighbors recently requested a quote
Recommended by85%of homeowners
Dolloff Lawncare
3.1(
17
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Warren, NH and surrounding areas

Approved

In business since 2002

Customers say: Quick response

"Mr. Dolloff was prompt in his response to our inquiry into landscaping projects we were considering. He gave us a free estimate on several projects. The cost seemed very fair and we had him complete a quarter of the entire project ~ grooming a hillside with severe erosion and creating a parking area for 2 cars. The hillside is beautiful. Exactly what we wanted and better than we expected. The parking area was not what I would call satisfactory. But in all honesty, they completed both jobs on time but unfortunately it was just the day before we got all that heavy rain the weekend of October 21st. We are planning for him to complete the other landscaping we need down and he offered to clean up the parking area as soon as the weather settles down."
7 neighbors recently requested a quote
Recommended by90%of homeowners
C&L Cass Construction
2.8(
2
)
Building Site - Preparation and ClearingExcavation - Major Grading or Resloping

Serving Warren, 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
Avatar for DRC Excavation LLC
DRC Excavation LLC
New to Angi
Building Site - Preparation and Clearing

Serving Warren, NH and surrounding areas

Approved

In business since 2015

Free estimates

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Not only are we focused on quality work and outstanding results, we are also committed to educating our clients through our wide range of expertise, in turn creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

Response time4 days
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Excavating FAQs, answered by experts

The easier way to find buried sprinkler lines is to use the plan from the professionals who installed the system. If you don’t have professional plans, listen for running water on your lawn when you turn on the system. You may also spot wet areas, giving you an idea of where the heads are. Once you find the sprinkler heads, you’ll likely be able to connect the dots between them, revealing the system below.

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.

How deep your septic system needs to be into the ground depends on several factors. In extremely cold environments, the tank needs to rest below the maximum frost line, which can be up to six or eight feet deep. The standard burying depth for most systems is between a few inches and four feet below ground level. Depth can also depend on the slope of the landscaping and other property variables. 

Yes, you can install a trench drain if you already have concrete in your yard or garden. While it can complicate some aspects of the job and slightly run up the cost, it is doable. Residential trench drains can be easily retrofitted to outdoor areas with concrete without having to remove excessive amounts of your patio, pool area, or decorative walkways.

Preparation involves site assessment, clearing debris, grading surfaces, and compacting soil to support stable construction.

The Warren, NH homeowners’ guide to excavation services

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