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TRUSTED BY COLLINSVILLE, CT HOMEOWNERS

  • Average homeowner rating star icon3.7
    Average homeowner rating
  • Verified reviews icon42
    Verified excavation services reviews

Top-Rated Excavation pros in Collinsville - Updated Nov 2026

Avatar for KNL CONSTRUCTOR LLC
KNL CONSTRUCTOR LLC
5.0(
11
)
Excavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For Business

Serving Collinsville, 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

24 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Jade Construction
Jade Construction
4.4(
45
)
Building Site - Preparation and ClearingLandscape - Minor Grading or ReslopingExcavation - Major Grading or Resloping

Serving Collinsville, CT and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"Jason was very easy to work with and provided suggestions for seeding and subsequent treatment due to the terrain and soil. There were a number of unanticipated stumps in the area which caused a lot of roots to be eliminated after the fact. I still have not got to the point where I should mow the new growth which has been a slow process. Jason did a nice job on the excavation part and he did all the work maintaining previous drainage contours put in years ago.He was flexible, knew his business, and easy to work with and adjust aspects of the job."
Septic Install
Septic Install
Foundation
Footing drains
Septic Install

+131

Response time5 hrs
Response rate94%
6 neighbors recently requested a quote
Sunshine Environmental Services, Inc.
4.8(
7
)
Excavation - Major Grading or Resloping

Serving Collinsville, CT and surrounding areas

Approved

In business since 1986

Free estimates

Credit card accepted

"I am very pleased with this company. Prompt initial response and quote. Prompt site inspection. The excavation of underground oil tank was performed within a week, as promised. The work was done expertly and quickly. The hole was filled and grass sowed in. The completely report was delivered by email within 48 hrs as promised. The invoice was in agreement with quote. Excellent work and pleasant crew. I recommend very highly."
Response time1 day
12 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for SVL, LLC
SVL, LLC
3.5(
47
)
Excavation - Major Grading or Resloping - For Business

Serving Collinsville, CT and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Michael and his team (Mikey, Travis and Tony) were prompt, professional, knowledgeable and were able to adjust the project as it went along and recommended changes that were better for aesthetics. Friendly and truly cares about doing top quality work. Would recommend to anyone!"
Stair walkway
Stair walkway
Walkway
Front walkway & stairs
Front walkway

+57

Response time10 hrs
Recommended by96%of homeowners
Avatar for Advanced Basement Waterproofing LLC
Advanced Basement Waterproofing LLC
5.0(
5
)
Landscape - Minor Grading or ReslopingExcavation - Major Grading or Resloping

Serving Collinsville, CT and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. \nIt is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. \nIn order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer \nin a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Knell walls
Knee Walls
After
Before
Concrete Work

+1

316 neighbors recently requested a quote
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Excavating FAQs, answered by experts

Most states do not require excavation companies to hold specific licenses, but many require at least a contractor’s license. Additionally, heavy equipment operators require a special commercial equipment license to operate machinery required for excavation. You can use Angi’s contractor licensing tool to confirm that an excavation company you’re considering hiring is fully licensed. You should also make sure that the excavation team is fully insured before allowing them to work on your property.

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 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.

Trenches are typically 12 to 24 inches deep and 8 inches wide. However, the required depth depends on the specific project and local ordinances. For example, a French drain may need to be 18 inches deep, while a water pipe might require a depth of 24 inches and a drainage pipe 36 inches. Your city or county may have specific regulations, so it's wise to consult with an excavation professional to determine the correct depth for your project.

The Collinsville, CT homeowners’ guide to excavation services

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