Based in Indian Trail, NC · serving the Charlotte metro and Union County
Land Clearing · Grading · Free Estimates (980) 315-5707
Cornerstone Excavation Group
Our Services

Foundation Excavation in Indian Trail, NC

Foundation Excavation · Indian Trail, NC

Footings, foundation digs and backfill for new builds

Foundation excavation is the first dig on a build, and the footings set everything above them. Cornerstone Excavation Group digs foundations and footings for new homes, additions, garages and outbuildings east of Charlotte. We work for home builders, general contractors and homeowners. The estimate is free and starts with a look at the job.

Every dig follows the plan the builder or engineer hands us. Spoils either stay on the lot for backfill or leave on dump trucks, see dirt and spoils hauling. When the footings are one piece of a bigger build, we can handle the site prep and building pads first. Cornerstone is 5.0-rated on Google and works the Charlotte metro from a base in Indian Trail.

What We Handle

  • Footing trenches dug to the plan for new homes, additions and garages
  • Full foundation digs for slab, crawl space and basement plans
  • Utility trenching for water, sewer, power and gas lines
  • Over-dig and access so the footing and wall crews can work
  • Backfill in lifts with compaction around the finished foundation
  • Rough grade around the house so water runs away from the wall
  • Excavation around an existing foundation for a repair or waterproofing contractor
  • Spoils, rock and debris loaded out on dump trucks

Free Foundation Excavation Quote

Tell us about the job. We will get right back to you.

Footings and Foundation Digs for New Homes and Additions

A footing dig looks simple until the plan gets specific. The trench has to hold the width and depth on the drawings, with clean walls. We set the dig out from the builder's stakes and size the machine to the lot. Tight Charlotte lots get a mini excavator and open acreage gets a bigger one.

The plan and the building code set the depth. Footings go below the frost line and onto undisturbed soil, and the county sets that depth. The open trench usually gets inspected before concrete is poured, and the builder or owner books it. We keep water out of the trench until it happens.

Additions, garages and outbuildings run the same way at a smaller size. Access is the hard part on a built property. We bring machines in through side yards and gates and put the spoils where they will not block the trades. If the plan calls for a basement or a deeper crawl space, the dig moves a lot more dirt.

What do Charlotte-area clay and rock do to a foundation dig?

The ground here is Piedmont red clay, mostly Cecil, Pacolet and Enon soils. Dry clay holds a trench wall well. Wet clay is a different job, because water sits in the bottom of the footing trench and softens it. We cut the water off the dig and take the trench down to firm ground.

Union County sits on the Carolina Slate Belt, so shallow rock shows up in some digs east of Charlotte. No one knows for certain until a machine is in the ground. Rock changes the dig, both the method and the time it takes. We tell you what we hit before we push on.

Clay also decides what happens once the foundation is in. Water that sits against a new wall has to go somewhere. Backfill and the first grade around the house handle most of it. A lot that already holds water may need yard and lot drainage on top of the grade.

Utility Trenching, Backfill and the Grade Around the House

Utility trenching is the other half of most foundation jobs. We dig and backfill the trenches for water, sewer, power and gas lines. The plumber or utility contractor sets the pipe and makes the connections. We open the line to the depth that trade asks for and close it after inspection. Full water, sewer and storm line installation is its own service, from the main to the building.

Nothing gets dug until the locates are done. North Carolina 811 asks for three working days of notice before you dig, so that request goes in early. Public locates do not cover private lines. Tell us about anything buried you know of, like a line to a detached garage.

Backfill is where a foundation job settles or holds. We bring the material back in lifts and compact as we go, to whatever the builder or engineer specifies. Then we rough grade so the lot drains away from the house. Final grading and seeding can follow on the same job.

Compact track loader on a graded red clay site beside a pile of excavated rock, with a section of culvert pipe in the foreground Track loader carrying a full bucket of red clay across a site with an excavator working behind it

Ready to get started?

Free estimates across the Charlotte metro, Union County and the York County side of South Carolina.

(980) 315-5707
How We Work

How a Job With Cornerstone Excavation Group Runs

From the first call to the last load hauled off, here is how it goes.

1

Call us

Call or text (980) 315-5707 and tell us what the job is. We ask what the access looks like and when you need it done.

2

We look at the site

We come out to see the ground, the access and where the water goes. The visit and the estimate are free.

3

The plan

We set how the equipment gets in, where the material goes and what order the work runs in. Utility locates go in through NC811 before we dig, and any permit stays in the owner or builder's name.

4

We do the work

The machines come in and the job gets done in the order we planned. Weather moves earthwork, so we tell you when the schedule shifts.

5

Cleanup and haul-off

Spoils, brush and demolition material leave on our dump trucks. We grade the ground back before the equipment comes off the site.

FAQ

Foundation Excavation Questions, Answered

Common questions about foundation excavation across the Charlotte metro, Union County and the York County side of South Carolina. If yours is not here, call and ask.

Call (980) 315-5707

How deep do footings have to be?
Depth comes from your plan and the building code. Footings go below the frost line and onto undisturbed soil, at the depth your drawings call for. Your county confirms that at inspection. If the plan and the ground do not agree, we stop and let the builder or engineer sort it out.
Do you do foundation repair?
No, we are an excavation contractor based in Indian Trail, and foundation repair is a different trade. We dig new foundations and footings. We can also dig out around an existing foundation so a repair or waterproofing crew can reach the wall. That contractor handles the repair itself.
Do you trench for water, sewer and utility lines?
Yes. Utility trenching is part of most foundation jobs we run. We dig the trench, hold the depth and line the work needs, then backfill after the pipe is inspected. The plumber or utility contractor sets the lines and makes the connections.
How long does a foundation dig take?
Most footing digs for a house run a day or two once the lot is ready. Weather moves that, because a soaked clay lot has to dry before machines get back on it. Basement digs, rock and larger commercial footings take longer.
What does foundation excavation cost?
Price follows the dig, so we look at the site before we quote. The footprint and depth set the size of the dig. Access, soil, rock and where the spoils go move it from there. Estimates are free, and the number comes after we see the lot.
Do you work with builders and general contractors?
Yes, most foundation work comes from home builders, general contractors and developers. We also dig for homeowners adding a garage or an addition. We can take the footings, the trenching and the backfill on one job, or dig only the piece you need. Call (980) 315-5707 and tell us what stage the job is at.
More From Cornerstone Excavation Group

Work That Pairs With Foundation Excavation

Compact track loader on a new gravel lot beside a steel framed commercial building with fresh curbing

Site Prep

We prepare lots for new homes and commercial builds around Indian Trail and Charlotte. The work covers clearing, cut and fill, building pads, compaction and the first grade.

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Deep trench cut in red clay at a commercial site with an excavator working above it

Utility Installation

We install underground utilities on the east side of Charlotte: water mains and service lines, sanitary sewer, storm drainage pipe and structures, and trenching for power, gas and telecom conduit.

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Brush being loaded into a dump truck beside an excavator at a wooded lot clearing

Material Hauling

We haul spoils, brush, concrete and demolition debris off your site. We also bring in fill dirt, gravel and stone for the work we run.

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Why Choose Cornerstone Excavation Group

Built for Land Clearing, Grading and Site Work Around Charlotte

25 five-star Google reviews

Homeowners, builders and property owners have rated the work five stars on Google. Those jobs cover grading, land clearing, demolition cleanup, drainage and a retaining wall.

Free estimates after we see the job

We come to the property, look at the ground and price the work from what is there. The visit and the estimate are free.

One contractor for the whole job

Clearing, grading, digging, utility lines, walls, ponds, drainage, demolition and hauling all come from us. One company handles each stage, so the site stays on one schedule.

Indian Trail base, Charlotte metro work

We work out of Indian Trail in Union County, on the Mecklenburg County line. Charlotte, Matthews, Monroe, Waxhaw, Mint Hill, Concord, Fort Mill and Rock Hill are all in range.

Guides and Resources

Foundation Excavation Guides

Free Estimates

Get In Touch With Cornerstone Excavation Group

Tell us about the job on the form, or call (980) 315-5707. We will get back to you and set up a free look at the site.

  • (980) 315-5707
  • Indian Trail, NC · serving the Charlotte metro, Union County and the York County side of South Carolina
  • Free estimates · land clearing, grading, site prep, utility lines and demolition

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