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TRUSTED BY COS COB, CT HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon28
    Verified excavation services reviews

Verified Reviews for Excavation pros in Cos Cob, CT

*The Angi rating for Excavation companies in Cos Cob, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Excavation needs.

*The HomeAdvisor rating for Excavation companies in Cos Cob, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Excavation needs.

Last update on May 04, 2026

Find Excavation pros in Cos Cob

Avatar for The Builders & Cleaners
The Builders & Cleaners
4.9(
120
)

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Best experience I ever had hiring some to do exterior & interior repairs!very pleased and highly recommended them to everyone I know !"
Dust out from the ductwork
Dust out from the ductwork
Clean vent
Clean vent
Dust in the return

+1812

Response time1 day
Response rate92%
Recommended by87%of homeowners
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Avatar for Ron's Masonry
Ron's Masonry
5.0(
29
)

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1995

Emergency services offered

Small jobs welcome

"Ron and his assistant arrived on time to do some fall cleanup landscaping at my house. What would have taken me three days to do, plus hauling away the debris, took them under two hours. It was the very best money I ever spent - more so because I got to meet such lovely people, but also because they helped me a great deal. I will be calling them in the spring for a clean up and masonry work."
Walkway
Steps
Footing
Walk
Walk

+36

Response time1 day
Response rate86%
35 neighbors recently requested a quote
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Avatar for KNL CONSTRUCTOR LLC
KNL CONSTRUCTOR LLC
5.0(
11
)

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

*****Call Today for an Estimate @ 475-279-4864***** With over 10 years of experience, I take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. Give us a call today! We look forward to working with you!

Pavers
Pavers
Concrete Border
Concrete Border
Bluestone

+2

7 neighbors recently requested a quote
Recommended by66%of homeowners
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Avatar for AA Outdoor Services, LLC
AA Outdoor Services, LLC
3.9(
33
)

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1990

Free estimates

Small jobs welcome

"Vinny is a very friendly and professional guy who we really enjoyed working with. The quality of his work is excellent- we used him for our sidewalk and refurbishing the rod iron railings. Overall positive experience with him and the final project turned out great! We would definitely recommend him and will be using his services again in future projects."
Driveway in New Haven (West Haven)
Rear entrance and parking area (West Haven)
Rear entrance and parking area (West Haven)
Step repair (West Haven)
Step repair (West Haven)

+61

Response time9 hrs
Recommended by100%of homeowners
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Avatar for Belinquete
Belinquete
5.0(
6
)

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"David and his crew were on time , professional, and affordable. The work was beautiful and they cleaned up beyond my expectations. I would definitely hire them again!"
Response time1 day
40 neighbors recently requested a quote
Recommended by50%of homeowners
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Avatar for Elite Development Creations
Elite Development Creations
3.6(
36
)

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Victor was referred to us by friends and he did not disappoint. He was not the least expensive option to us but his track record speaks for itself. The planting?s and masonry his crew installed were beyond what we could have imagined. Loving my yard. Don?t hesitate to hire this company. Leo S"
Stone patio
Stone patio
Patio and turf
Excavation
Excavation

+27

140 neighbors recently requested a quote
Recommended by68%of homeowners
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Avatar for Eden Farms LLC.
Eden Farms LLC.
4.7(
3
)

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1994

Free estimates

Credit card accepted

"WE WERE LUCKY TO HAVE HER HELP WITH OUR FRONT YARD AND BACK KNOLL GARDENS ALONG WITH DIFFERENT ARRANGEMENTS FOR HOME AND POTS WITH A BEAUTIFUL DISPLAY. SHE WAS VERY HELPFUL."
Response time7 hrs
Response rate100%
6 neighbors recently requested a quote
Request Quote
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Showing 1-10 of 145
Excavating questions, answered by experts

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.

Trenching and boring are two distinct methods for installing underground utilities. Trenching involves digging a channel using equipment like an excavator, trencher, backhoe, or shovel. While it is a simpler process, it causes significant disruption to the surface, landscaping, and surrounding ecosystems.

Boring, also known as directional boring, is a less invasive alternative that uses a drill to create a tunnel for utility lines without disturbing the surface. This method is more precise and is ideal for installations that need to go underneath buildings, roads, or bodies of water. Although boring is less disruptive, it is generally more expensive than trenching.

You can bury underground electrical wire six inches deep—but only if you use a rigid metal electrical conduit. For rigid, non-metallic conduits, bury the wire at least 12 inches deep. If using an underground feeder cable rated for direct burial, you'll need to place it at least 18 inches deep, as it has no conduit for extra protection.

There is no standard depth for burying a septic tank; they are typically buried anywhere from 4 inches to 4 feet underground. The final depth depends on several factors, including the depth of your main sewer line, the height of the bedrock, soil type, local regulations, and the property's landscape. If you plan to grow grass or plants over the tank, a depth of at least 4 to 6 inches is recommended. Deeper tanks can be more difficult to locate, but a septic professional can help find it for you.

Because decomposed granite is a durable material, a crushed rock or gravel base is optional as long as the DG is properly installed and compacted. However, installing a base is a good idea because it will ensure proper drainage and stability and act as a weed suppressant (although you may still occasionally have to pull weeds). Installing an adequate base can also increase the durability of driveways and walkways. If you forego the paver base or gravel underneath, line the area with landscaping fabric to avoid weeds.

The Cos Cob, CT homeowners’ guide to excavation services

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

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