Underground Utility & Sewer

Sewer line installation, storm and sanitary sewer work, and underground utility installation for commercial and municipal sites.

How We Work

Underground Work Done Right the First Time

Altera Construction installs and repairs the underground infrastructure commercial properties depend on — sanitary and storm sewer lines, catch basins, culverts, and utility connections. Every job starts with utility locates and a site servicing plan, not guesswork.

From trenchless sewer line replacement to new sewer line installation on a development site, we coordinate underground utility and sewer work around your project's schedule.

That includes new sewer connections for ground-up developments as well as sewer line repair and utility upgrades on properties already built and occupied.

We work from the project's civil engineering drawings rather than field judgment alone, so pipe sizing, slope, and material match what's been approved by the municipality.

  • 01

    Plan — Define every detail before construction.

  • 02

    Build — Execute with precision and control.

  • 03

    Deliver — Finish strong. Built to last.

Completed projects

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Underground Utility & Sewer Installation

We install and maintain sanitary sewer, storm sewer, and drainage systems for commercial and organizational properties, including catch basin installation, culvert installation, and site servicing for new developments. Every job is tied back to the site's overall drainage and utility plan, so new work integrates cleanly with what's already in the ground.

Depth and slope requirements for sanitary and storm lines are set by local plumbing and building codes, and inspections at rough-in and before backfill confirm the work meets those requirements before the trench is closed.

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4.9 Google Rating

Underground Utility & Sewer Installation

Underground work is the part of a project nobody sees once it's finished — which is exactly why it has to be planned and installed correctly the first time.

That means confirming pipe material, depth, and slope against the approved civil engineering drawings before backfill goes in, since correcting an undersized or incorrectly sloped line after it's covered is far more disruptive than getting it right the first time.

Underground Services We Provide

Sewer line installation and sewer line repair — new sanitary sewer connections and repair or replacement of existing lines, including trenchless sewer line replacement where an open-cut dig isn't practical.

Storm sewer and drainage — storm sewer installation, catch basin installation, and drainage installation to manage stormwater across parking lots and building sites.

Underground utility locating and installation — confirming existing utility lines before installing new sewer, water, or utility connections.

Trench drain and catch basin work — commercial trench drain installation tied into the site's storm sewer system to manage surface water.

Sewer line repair and replacement — repairing or replacing damaged sanitary sewer lines, including trenchless sewer line replacement for situations where excavating the full pipe run isn't practical or cost-effective.

Manhole and utility structure installation — installing manholes, access points, and related structures required for a functioning sewer or utility network.

Water main and service line installation — connecting a new commercial building to municipal water service, sized and installed to the standards the local authority requires.

Backflow prevention and cross-connection work — installing the devices municipalities require to keep a commercial property's plumbing from contaminating the public water supply.

Built for Commercial and Municipal Standards

Underground utility and sewer work has to meet municipal inspection requirements the first time — our crews plan sewer line installation, site servicing, and utility connections around those standards from the start.

Because underground work is inspected before it's covered back over, our crews document connections and depths as the work happens, not after the fact, so inspections don't stall the rest of the schedule.

That documentation also becomes useful long after the project wraps — accurate as-built records of what's actually in the ground save time and reduce risk on every future excavation or utility project at the same property.

Site Servicing Coordinated With Your Engineer and Municipality

Every underground utility and sewer project starts from the site's approved engineering drawings, not field assumptions. Before excavation begins, we confirm pipe sizing, slope, and material against those drawings, and we schedule sewer line installation and utility connections around whatever inspection sequence the municipality requires.

That coordination is what keeps a project from sitting idle waiting on a call or an inspection that could have been scheduled days earlier — the kind of delay that's easy to avoid with the right planning up front.

Service Areas

Proudly Serving
Calgary & Area

Based in Calgary, our crews take on commercial excavation, utility, paving, and land development projects throughout Southern and Central Alberta.

Calgary

  • Downtown
  • Beltline
  • Inglewood
  • Kensington
  • Bridgeland
  • Sunalta
  • NW Calgary
  • NE Calgary
  • SE Calgary

Calgary Metro

  • Airdrie
  • Cochrane
  • Chestermere
  • Okotoks
  • High River
  • Strathmore
  • Crossfield
  • Irricana
  • Langdon

Southern Alberta

  • Red Deer
  • Lethbridge
  • Medicine Hat
  • Canmore
  • Olds
  • Innisfail
  • Brooks
  • Taber
  • Claresholm

4.9 Star Rating

FAQ

Frequently Asked Questions About Underground Utility & Sewer

Everything you need to know before starting your next project with Altera Construction.

What underground utility services do you provide?

Sanitary and storm sewer installation and repair, catch basin and culvert installation, trench drains, and general utility trenching for commercial properties.

What is trenchless sewer line replacement?

It's a method of replacing a damaged sewer line without fully excavating the old pipe's path, reducing disruption to paving, landscaping, and site operations.

Do you work with municipal inspectors and civil engineers?

Yes — underground utility and sewer work is coordinated with the project's civil engineering plans and scheduled around required municipal inspections.

Can you install drainage for an existing parking lot?

Yes, including catch basins, trench drains, and storm sewer connections retrofitted into paved sites with recurring drainage issues.

What makes Altera Construction different?

We focus specifically on commercial site work rather than general residential construction, which means our crews, equipment, and planning are built around the needs of organizations and developers.