Chapter 03 · Homeowner's Guide

Is my foundation a problem?

A practical guide for Calgary homeowners on spotting the early warning signs, and figuring out what's cosmetic and what actually needs a structural engineer.

Foundation Warning Signs

Foundations don't fail overnight.

But the signs are easy to miss until they become costly. Calgary's clay-rich soils, freeze-thaw cycles, and grading conditions all put real stress on residential foundations, and the issues usually show up as small details long before anything dramatic happens.

What to Look For

Signs to watch & how to judge severity.

i. Signs to look for

Common warning signs around the house

  • Cracks in foundation walls, horizontal, diagonal, or stair-step patterns
  • Sticking doors or windows, they no longer close properly
  • Uneven or sloping floors, especially noticeable in older homes
  • Bowing or leaning basement walls, lateral soil pressure
  • Water intrusion or moisture, seeping through walls
ii. Severity factors

What an engineer considers

  • Crack type, width, and movement, is it actively growing?
  • Settlement or lateral soil pressure, what's pushing the foundation?
  • Past repairs, did they address the cause or just the symptom?
A note from the engineer:

Not every crack is a crisis

But foundation issues rarely fix themselves. The earlier they're assessed, the cheaper they are to address, and a structural engineer can tell you what's cosmetic versus what actually needs repair, underpinning, or further investigation.

What Happens Next

From assessment to permit.

Once a foundation issue is identified, the next step is usually a stamped repair design, and depending on the scope, a City of Calgary building permit. Chapter 04 covers the permit process for Calgary homeowners.

Continue to Chapter 04, Permits