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Foundation Excavating

Precision foundation excavation. Below frost line, level, and ready for your contractor.

(716) 253-1527
Serving Erie County, NYFree Estimates$3,000 - $15,000 typical range

Foundation Excavation Specialists. Precision That Sets Contractors Up for Success.

How much?

$3,000 - $15,000

How long?

Most residential foundation excavations take 1-3 days from start to finish

Licensed?

Fully Licensed & Insured

Why Choose Millie Excavating?

Western New York's Excavation Specialists - Trusted by homeowners across Erie County, NY.

5+
Years Experience
500+
Projects Completed
12
Cities Served
100%
Customer Satisfaction
Excavation Specialists, Not Generalists
We're experts in excavation and utility work, not general contractors who occasionally dig.
We Own Our Equipment
No subcontractor markup means better value and faster project completion.
Complete Property Restoration
We don't just dig—we restore your property to original or better condition.
Local Erie County Expertise
Deep knowledge of local soil conditions, permits, and regulations.
Fully Licensed
Fully Insured
Free Same-Day Estimates
Local Family Business
Serving Erie County Since 2019

Do I Need Foundation Excavating?

Check 2+ items to see if you need our services. Not sure? Call for a free consultation.

Transparent Pricing

What Does Foundation Excavation Cost?

Foundation excavation costs depend on project size, depth, and site conditions. These estimates reflect typical ranges for Erie County residential projects. We provide free on-site estimates with detailed written quotes.

Garage or small structure foundation

Detached garage, shed, small pole barn foundation

$3,000 - $5,000

Room addition foundation

Single-room to large addition excavation

$4,000 - $7,000

Full basement excavation (new home)

Complete basement dig with hauling

$8,000 - $15,000

Foundation repair excavation

Expose existing foundation for repair access

$2,500 - $6,000

Crawl space to basement conversion

Excavate below existing structure (underpinning)

$10,000 - $20,000+

Backfill services (after foundation)

Return to backfill and grade after walls cured

$1,500 - $3,000

Want an accurate quote for your specific project?

Get Your Free Estimate

Do You Need Foundation Excavating?

Common signs to look for:

Planning a home addition that requires new foundation work

Building a new garage, pole barn, or accessory structure

Foundation repair project requires excavating around existing foundation

Converting crawl space to full basement (basement underpinning)

Building a new home and need foundation excavation

Foundation settling or damage requires replacement sections

The Millie Difference

Why Hire Foundation Excavation Specialists?

Foundation excavation isn't just digging a hole: it's precision work that determines whether your foundation contractor has an easy job or a nightmare. Here's why excavation specialists outperform general contractors and landscapers:

Precision Is Our Standard

We don't do "close enough." Exact dimensions mean your foundation forms fit perfectly, walls are square, and floors are level. Precision excavation eliminates costly rework, delays, and frustration for your contractor. We measure twice, dig once, and verify with lasers.

Frost Line Expertise

Erie County requires footings below the 42-inch frost line to prevent frost heave that cracks foundations. We verify local code requirements and dig to proper depth every time. Too shallow, and your foundation will move. We get it right the first time.

Contractor Coordination

We work as partners with your builder, not just another subcontractor. We coordinate timing to excavate just before it's needed, communicate about any unexpected findings, and ensure the site is ready for foundation work. Smooth handoffs keep your project on schedule.

Complete Excavation Services

We don't disappear after digging. We excavate, grade the floor, haul away material, and return for backfill after your foundation is complete. One excavation contractor handling everything means better coordination and accountability.

What Foundation Excavating Problems Do We Solve?

What This Work Looks Like

Real projects and real excavation — the kind of work we'll perform on your property.

1 / 5

Deep trench with PVC wye and exposed roots in WNY yard excavation

New Home Foundation Excavation

Building a new home starts with proper foundation excavation. We work from surveyor stakes and building plans to excavate the basement or crawl space to exact specifications. This includes excavating below the frost line (42 inches in Erie County), creating level floor areas, providing adequate overdig for forming and waterproofing access, and coordinating with utility trenches. Precision is critical - the foundation must be square, level, and correctly positioned on the lot. Our careful excavation gives your foundation contractor the perfect starting point for quality work.

Room Addition Foundations

Adding onto your home requires foundation excavation that matches existing foundation elevations and integrates with your current structure. We excavate to the proper depth for footings below the frost line, ensure the excavation floor is level and compacted, and provide working room around the perimeter for forming and foundation work. Critical considerations include not undermining your existing foundation, maintaining proper drainage around both old and new foundations, and coordinating timing with your contractor. Precise excavation ensures your addition sits level with existing floors and integrates structurally with your home.

Foundation Repair Excavation

Foundation repairs often require excavating around the exterior to access damaged walls, install support systems, or apply waterproofing. This work is delicate - we must excavate carefully to avoid further disturbing compromised foundations. We expose the foundation to the depth needed for repairs, provide safe working access for foundation contractors, and ensure proper shoring if required. After repairs are complete, we backfill properly with compacted material and grade for drainage. This excavation work is essential for foundation repairs but requires experience and care to avoid causing additional problems.

Garage and Accessory Structure Foundations

Detached garages, pole barns, sheds, and other accessory structures require proper foundation excavation just like homes. We excavate for slab foundations, frost wall foundations, or pier foundations depending on your structure type. The excavation must be level, properly sized with working room, and deep enough to prevent frost heaving. For structures with concrete floors, we ensure proper subgrade preparation and slope for drainage. Even though these are smaller projects than home foundations, the same precision and code compliance applies. Proper foundation excavation ensures your garage or barn sits level and lasts for decades.

Why Choose Us for Foundation Excavating?

Precision Excavation

Exact dimensions, level floors, square corners: no contractor rework needed

Below Frost Line Guaranteed

42"+ depth for Erie County: proper depth prevents frost heave

Contractor Coordination

We work with your builder's schedule and specifications as partners

Complete Service

Excavation, grading, hauling, AND backfill when foundation is ready

Local Expertise

Foundation Excavation Challenges in Erie County

Erie County soil throws curveballs. We've seen them all.

Erie County Frost Line

Challenge

New York State building code requires footings below the frost line to prevent frost heave. In Erie County, this means 42+ inches minimum depth. Shallow footings will crack and shift.

Our Approach

We verify local code requirements for your municipality and excavate to proper depth with margin for footing thickness. No guessing: we know the requirements and meet them.

Variable Soil Conditions

Challenge

Erie County has everything from heavy clay to sandy soil to bedrock close to surface. Different soil types affect excavation approach, bearing capacity, and drainage requirements.

Our Approach

We assess soil conditions during excavation and communicate findings to your contractor. Clay requires different compaction than sand. Rock requires different equipment. We adapt and deliver.

Glacial Boulder Deposits

Challenge

Glaciers left large boulders scattered throughout Erie County soil. These can appear unexpectedly during excavation, blocking progress and requiring removal.

Our Approach

Our full-size excavators can extract large boulders that would stop smaller equipment. We handle rock removal efficiently without derailing your project timeline.

High Water Table Areas

Challenge

Areas near Lake Erie, creeks, and low-lying land have high water tables. Excavating in these areas can hit groundwater that floods the hole and complicates foundation work.

Our Approach

We assess water table conditions and can provide dewatering systems. We communicate water issues immediately so your contractor can plan appropriate waterproofing and drainage.

Permits for Foundation Excavation

Foundation work requires building permits in Erie County. We coordinate with your permit schedule and ensure excavation meets code requirements for inspections.

  • Building permits are required for foundation work in all Erie County municipalities
  • We coordinate excavation timing with your permit approval and construction schedule
  • Inspections are typically required before pouring footings. We ensure excavation is ready
  • We excavate to code-required depth and dimensions for inspection approval
  • We provide clear access for building inspectors as needed
  • We contact Dig Safely NY (811) before excavation to mark all utilities

How Does Foundation Excavating Work?

Here's how it works.

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Case excavator loading Ditch Witch in Erie County residential front yard

1

Layout

Mark foundation footprint and utilities

2

Excavation

Dig to required depth and dimensions

3

Grading

Level and compact the excavation floor

4

Preparation

Prepare for footings and foundation

5

Support

Provide access for concrete and supplies

Ready to get started?

Schedule Your Project

What to Expect

Here's how the project typically goes.

🕐

Timeline

Most residential foundation excavations take 1-3 days from start to finish. Small garage foundations can be completed in a day, while full basement excavations for new homes typically require 2-3 days. This includes excavation, rough grading of the floor, and hauling away excess material. Backfilling after foundation walls are complete adds another 1-2 days. Weather, soil conditions, and access affect timing. We coordinate our schedule with your contractor to ensure excavation is completed just before it's needed.

ℹ️

Disruption

Expect heavy equipment on your property including excavators and dump trucks for hauling soil. There will be significant noise during working hours, large piles of excavated soil temporarily stored on site, and a large hole where your foundation will be. For addition excavations, equipment will be close to your home. Access roads and driveways may see heavy truck traffic. The disruption is substantial but temporary - once excavation is complete and foundation work begins, the job site becomes more organized and less chaotic.

Your Prep

Ensure survey stakes or foundation layout marks are clearly visible - we depend on these for accuracy. Mark any underground utilities, septic systems, or irrigation in the work area. Clear the excavation area of any items you want to preserve. Provide clear access for our equipment and for trucks hauling away soil. If excavating near your existing home, remove or protect items that could be damaged by vibration or dust. Notify neighbors about the temporary construction activity and truck traffic.

💬

Communication

We start with a pre-construction meeting to review the plans, confirm excavation dimensions and depth, and answer questions. We verify survey stakes and utility locations before starting. During excavation, we keep you and your contractor informed about progress and any unexpected findings like rock, unstable soil, or groundwater. We notify you when excavation is complete and ready for the foundation contractor. If backfilling is included, we coordinate timing after foundation walls are ready. Clear communication ensures smooth coordination between excavation and foundation work.

Our Fleet

Equipment We Use

What we bring to foundation jobs.

Full-Size Excavator

Our primary tool for foundation excavation. Deep reach for basement depths, powerful enough to handle rock and boulders, precise control for accurate dimensions. Essential for efficient material removal.

Best For

Basement excavation, deep foundations, boulder removal

Mini Excavator

Compact machine fits through 36-inch gates for backyard additions. Lower ground pressure protects existing landscaping. Perfect for tight spaces where full-size equipment can't access.

Best For

Room additions, tight access sites, foundation repair

Dump Trucks

Multiple trucks for efficient soil hauling. Coordinated removal keeps excavation moving without waiting for trucks to return. We handle material disposal at approved sites.

Best For

Efficient material removal, coordinated hauling

Compaction Equipment

Vibratory plate compactors and jumping jacks ensure proper subgrade compaction. Essential for stable foundation support and quality backfill that doesn't settle.

Best For

Subgrade preparation, backfill compaction

Laser Level System

Precise depth and grade verification throughout excavation. Ensures level floors, proper depth at all points, and accurate dimensions. No guessing: laser accuracy.

Best For

Depth verification, floor leveling, precision work

Foundation Excavating FAQs

Foundations in Erie County are typically excavated 4-8 feet deep. Footings must sit below the 42-inch frost line to prevent heaving. Full basements require about 8 feet for proper ceiling height plus footer and slab thickness. Crawl spaces run 3-4 feet. Soil conditions and your planned structure also affect depth: we ensure every dig meets code.
Yes, we specialize in addition excavation: room additions, garages, sunrooms, and more. This work requires matching existing foundation elevations and avoiding damage to your current structure. We coordinate timing with your contractor so excavation happens exactly when needed and meets all specifications.
Most residential foundation excavations take 1-3 days. Garage foundations often wrap up in one day, while full basements typically need 2-3 days. Soil conditions, rock, access constraints, and weather can affect timing. We coordinate with your contractor to stay on schedule.
Quality topsoil gets stockpiled on your property for future grading and landscaping. Subsoil like clay or hardpan is hauled to an approved disposal site. We discuss material handling during your estimate and coordinate hauling to keep the job site organized and safe.
We work from surveyor or builder stakes marking the exact foundation footprint. Using laser levels and grade-checking equipment, we excavate to correct dimensions with 2-3 feet of overdig for working room. Before concrete crews arrive, we verify all measurements and make corrections. This precision ensures square corners, level floors, and properly fitting forms.
Yes, we excavate year-round in Western New York. Frozen ground requires more powerful equipment and costs slightly more. Since concrete can't be poured in freezing temperatures, winter digs are typically for projects with heated enclosures or spring construction starts. Most customers prefer warmer months when conditions are ideal. Call (716) 253-1527 to discuss timing.
Yes, we backfill after your walls are cured and waterproofing is complete. We place material in lifts, compacting each layer to prevent settling, and grade the surface to slope away from the foundation for drainage. We also provide final grading and topsoil placement to prepare for landscaping.
We communicate immediately about any unexpected findings. Erie County has areas with shallow bedrock and glacial boulders: if standard equipment can't handle it, we bring in rock hammers or arrange blasting with proper permits. We explain options and costs upfront so you and your contractor can make informed decisions without project delays.

What Our Customers Say

Real reviews from homeowners and businesses we've worked with across Erie County.

Why Does Foundation Excavating Matter?

Foundation excavation is the literal groundwork for your entire structure. Proper excavation ensures your foundation sits at the correct elevation, is level and square, has adequate drainage, and meets all building codes. Mistakes in excavation dimensions, depth, or floor level cause expensive problems during foundation construction and can affect your entire project. Excavating below the frost line prevents frost heaving that cracks foundations. Proper drainage prevents water problems that undermine foundations over time. Professional foundation excavation may seem like just digging a hole, but it requires precision, experience, and coordination that sets the stage for a successful construction project and a foundation that lasts a lifetime.

Need Foundation Excavating?

Get a free estimate for your foundation excavating project. We'll provide honest, upfront pricing and expert advice.

(716) 253-1527
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