Call

Basement excavation, trenching and lot grading in Calgary

Basements, trenches, lot grading and site prep, with the dirt hauled away or spread on site.

Typical job: 40 × 30 ft basement, 8 ft deep · $17,500–$22,000 + GST

Illustration: excavator digging a basement on a foothills acreage, with mountains in the distance

What we do

  • Basement and foundation digs
  • Trenching for water, sewer, power and gas lines
  • Lot grading and drainage fixes
  • Topsoil stripping and site prep
  • Backfill and rough grade
  • Dirt hauling and spoil removal

Common jobs

Before we dig, we plan two things: where the dirt goes and where the water will drain.

  • Basements, crawl spaces and footings for new builds and additions, dug to your plans and backfilled after the foundation is poured.
  • Regrading around houses and garages where water pools against the foundation.
  • Trenches for water, sewer, power and gas lines. Licensed trades make the connections.
  • Sod stripping, cutting down hills, building berms and rough grading for landscapers.

Clay and frost in Calgary

A lot of the Calgary area sits on heavy clay. Clay holds water, swells when it is wet and shrinks when it dries. That movement cracks foundations and heaves slabs. We slope the ground so water drains away, and we compact backfill in layers so it does not settle later.

Frost also goes deep here. Water lines and footings need to sit below the frost line, so we dig to the depth your plans or engineer call for.

Every dig starts with locates

Before we dig, we request free utility locates through Utility Safety Partners (Click Before You Dig). Hitting a gas or power line is dangerous and costly, so we never skip it.

How much does excavation cost in Calgary?

A typical 40 × 30 ft basement dug 8 ft deep, with the dirt hauled away, runs about $17,500–$22,000 + GST.

Every site is different. Soil, access and how far material has to travel all change the price. Try the cost estimator for your project, then we will confirm it with a free written quote.

Often booked together

Customers often add Shop & Building Pads, Gravel Driveways or Land Clearing to this job. We can quote and schedule them together.

Questions about excavation and grading

Do I need a permit to dig?

It depends on the job. Basements and additions are covered by your building permit. In Calgary, lot grading must meet City grading rules. Rural jobs may need a development permit from your county. We will tell you what applies before we start.

What happens to the dirt?

You choose. We can haul it away, or spread and grade it on your property if you have room. Keeping it on site costs less.

Can you dig in winter?

Yes, for many jobs. Frozen ground takes longer to break, so winter digs can cost more. Some jobs, like final grading, are best left for spring.

How fast can you start?

Call us for current availability. Larger jobs also depend on permits.

Get a price for your project

Use the online estimator or call us. Quotes are free.

CallGet estimate