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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

Top-Rated Excavation pros in Cos Cob - Updated Nov 2026

Avatar for The Builders & Cleaners
The Builders & Cleaners
4.9(
122
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"My husband and I reached out to the company to repair some rotten boards we discovered on the exterior of the house. We spoke to David who was extremely responsive and quick to set up our services. The crew came a couple days later right at the time they said, the repairs are great quality, and everyone we interacted with was polite and kind. I wouldnâ t hesitate to hire them for a bigger job in the future!"
Dust out from the ductwork
Dust out from the ductwork
Clean vent
Clean vent
Dust in the return

+1837

Response time1 day
Response rate92%
Recommended by85%of homeowners
Avatar for Ron's Masonry
Ron's Masonry
5.0(
30
)
Landscape - Minor Grading or Resloping

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1995

Emergency services offered

Small jobs welcome

"We hired Rons Masonry for a fence repair job and his customer service- specifically his knowledge and ability to explain his trade and recommendations in an an forthright and professional manner- were unparalleled. We now hire him for anything his company can take on and will recommend his company to everyone we know."
Walkway
Steps
Footing
Walk
Walk

+36

Response time1 day
Response rate86%
27 neighbors recently requested a quote
Avatar for AA Outdoor Services, LLC
AA Outdoor Services, LLC
3.9(
33
)
Excavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For Business

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
Avatar for Turning Green, LLC
Turning Green, LLC
3.8(
122
)
Landscape - Minor Grading or Resloping

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Very thorough in doing what they said they would do. Oscar was the only contractor I spoke with that understood what I wanted - not a traditional green lawn, but a lawn I could transition to a semi wild scape type of garden.neat with cleanup. Iâ m hoping it comes up as indicated"
 New Canaan,CT
 All natural
Organic lawn and plants
after
 Redbud

+44

Response time12 hrs
141 neighbors recently requested a quote
Recommended by79%of homeowners
Avatar for Elite Development Creations
Elite Development Creations
3.6(
36
)
Excavation - Major Grading or ReslopingLandscape - Minor Grading or Resloping

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

52 neighbors recently requested a quote
Recommended by68%of homeowners
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Excavating FAQs, answered by experts

Digging out a basement takes anywhere from a few days to a few months. Most projects take at least two to five weeks, but it could take several months if you encounter obstacles. This project takes longer if you need to brace or raise your home before the excavation. Digging out a basement in new construction can take as little as three days.

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.

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.

Underground downspouts refer to the sections of downspout extensions that lead away from your home and gutter system. While they cost more than traditional extensions, they can provide several benefits, such as less frequent damage and no need to move them for lawn care tasks. Whether they're worth it or not depends on your budget at installation time and how much convenience they'll add to your situation.

You do not have to dig footers for a deck as long as it meets local code and holds up to weather in your area. If you live somewhere that experiences high winds and earthquakes, you may need to dig for your deck posts. Deck blocks, post anchors with base plates, and helical pile systems are the three no-dig deck post options you can choose from if local code permits.

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.