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TRUSTED BY THIELLS, NY HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon19
    Verified excavation services reviews

Top-Rated Excavation pros in Thiells - Updated Nov 2026

Avatar for Lilco Construction Inc
Lilco Construction Inc
5.0(
10
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+1 more

Serving Thiells, NY and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"Had the opportunity to experience Lilco's work on several projects. These guys always had a professional attitude and took the time for all preparations and quality control. They did not leave a mess or unwarranted damages like so many fly-by-night contractors tend to do. They even magnet swept driveways for screws/nails whenever they finished loading out for the night. The owner is always up front about any costs, with no hidden charges to get the jobs done."
1 neighbors recently requested a quote
Recommended by50%of homeowners
Avatar for Villa and Sons Construction, Inc.
Villa and Sons Construction, Inc.
4.1(
85
)
Excavation - Major Grading or Resloping - For Business

Serving Thiells, NY and surrounding areas

Approved

In business since 1997

Free estimates

Offers commercial services

"They paved my huge driveway in only two days and the outcome is excellent. Franklin arrived with a whole team of men and they worked very hard and did a quality job. I can totally recommend Villa and Sons and I will hire them again for another job in the spring."
Driveway Paving
Driveway Paving
Driveway Paving
Driveway Paving
Driveway Paving

+140

Response time2 days
8 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for CLC Landscape & Construction
CLC Landscape & Construction
5.0(
2
)
Excavation - Major Grading or Resloping

Serving Thiells, NY and surrounding areas

Approved

In business since 2022

Free estimates

Offers commercial services

"Excellent communication! Provided an estimate within a day of contact. Once the estimate was approved CLC immediately scheduled the work. CLC arrived as scheduled, and performed outstanding work for a reasonable price. I recommend CLC Landscaping!!"
Avatar for Seetin Design Group Inc
Seetin Design Group Inc
New to Angi
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+1 more

Serving Thiells, NY and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

Seetin Design Group provides professional land clearing, forestry mulching, excavation, grading, gravel driveway installation, trail building, and full site preparation services throughout the Hudson Valley and surrounding areas.\n\nWe specialize in clearing overgrown properties, removing brush and vegetation, cutting access trails, building gravel driveways, and preparing land for homes, barns, shops, and recreational properties. Our equipment allows us to efficiently handle wooded terrain, steep areas, long access roads, and large rural properties.\n\nServices include land clearing, forestry mulching, brush removal, stump removal, excavation, grading, gravel driveway construction and repair, trail building, access road construction, drainage improvements, culvert installation, and building site preparation.\n\nOur modern equipment fleet includes John Deere compact track loaders, excavators, forestry mulching attachments, and dump trucks designed to complete land development projects efficiently. Whether you need property cleared, a driveway cut into a wooded parcel, trails opened through your land, or a building site prepared for construction, we have the equipment and experience to handle the project.\n\nWe frequently work with property owners, landowners, builders, and contractors throughout the Hudson Valley who need reliable excavation and site work for residential and rural projects.\n\nIn addition to land services, Seetin Design Group operates a full custom metal fabrication shop producing structural steel, railings, stair systems, gates, and architectural metalwork for residential and commercial construction.\n\nFrom small property clearing projects to full site preparation for homes, barns, driveways, and access roads, Seetin Design Group delivers dependable equipment, experienced operators, and professional results.

site prep
pour
wall
BARN BUILD!
BARN BUILD!

+156

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Excavating FAQs, answered by experts

A joint utility trench, or joint trench, is a long, buried ditch on a property that contains two or more utility lines rather than running the lines in multiple trenches. Some utilities, like gas and electric or electric and communication lines, are better suited to joint trenching, while others, like water and sewer, are not allowed to be in the same trench.

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.

A trench that is less than 5 feet deep often doesn't require a protective system. Most residential trenches will not go this deep (the typical residential drainage trench is just 18 inches deep). In the event that an excavator needs to dig more than 5 feet beneath the surface, a protective system is required unless the excavation is in entirely stable rock.

No, a ditch isn’t a trench. A ditch is an open, relatively shallow channel that’s carved out of the ground and used for drainage purposes. In contrast, a trench is a deeper excavation that’s entirely underground. Trenches have many uses, including gas lines, sewage systems, and electrical wiring. Unlike trenches, ditches don’t get filled back in with dirt after they’re dug.

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. 

The Thiells, NY homeowners’ guide to excavation services

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