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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
13 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

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

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.

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.

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.

Hardscaping often requires preparation of the ground in the area where the feature is being installed. This can include digging, compacting, and leveling the soil, ensuring adequate drainage, and removing any existing plants. The extent of preparation needed will depend on the type and size of the hardscaping feature being installed.

In the United States, a depth of 36 inches (three feet) for underground water lines is the accepted industry standard. This depth varies from location to location based on local conditions. In areas with colder winters, they may be buried deeper to prevent frozen well water pipes : This is usually at least six inches below the frost level. The International Plumbing Code calls for a minimum of 12 inches below grade.

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.