Alberta · Energy · checked September 28, 2026

Attic insulation inspections in Calgary

The attic is usually the cheapest big energy fix in a house, and the inspection decides how to do it: how much insulation is there, where air leaks through the ceiling, and whether anything up there must not be disturbed.

Get matched in Calgary → What an attic inspection checks
Loose-fill insulation between attic joists, a yellow ruler showing its depth and frost on the roofing nails above

Cost

Included in an evaluation

Houses built before 1991

47%

Heating degree-days

4,876

Common finding

R-10–20 vs R-50–60 target

How Calgary is built

Calgary's houses by when they were built Ten house shapes, one for each tenth of Calgary's 379,710 houses. Before 1961: 10%, 1961–1990: 38%, 1991–2000: 17%, 2001 or later: 36%. Older houses glow hotter.
  • Before 1961 10%
  • 1961–1990 38%
  • 1991–2000 17%
  • 2001 or later 36%
Each house stands for one in ten of Calgary's 379,710 houses (single-detached, semi-detached, row and duplex), drawn by when it was built. The glow shows the usual pattern: older houses tend to be leakier and less insulated. Snowfall scales with heating degree-days. Sources: Statistics Canada 2021 Census (table 98-10-0233-01), NRCan HOT2000 climate data.

What inspections find in Calgary attics

Of Calgary's 379,710 houses (single-detached, semi-detached, row houses and duplexes), 10% were built before 1961 and 47% before 1991, according to the 2021 Census. Attics in older houses commonly have a fraction of today's recommended insulation, and top-ups done over the years often buried air leaks instead of sealing them first.

Calgary gets about 4,876 heating degree-days a year and has a winter design temperature of −26.2°C, according to NRCan's HOT2000 climate data for Calgary International. That's about 24% more heating demand than the middle of the 70 cities we cover. The colder the climate, the faster added attic insulation pays for itself.

Vermiculite. Loose, pebbly, grey-brown or silver-gold insulation may contain asbestos. Health Canada's advice is not to disturb it; have it sampled before any attic work. Asbestos and vermiculite testing in Calgary

The right order for the work

  • Seal the air leaks first: top plates, pot lights, plumbing stacks, the hatch.
  • Fix ventilation baffles so new insulation doesn't block soffit vents.
  • Then top up the insulation. Burying unsealed leaks under new insulation wastes much of the benefit.

What an attic inspection checks.

NRCan-licensed service organizations serving Calgary

Every EnerGuide evaluation includes an attic inspection: insulation depth, air leaks and red flags such as vermiculite or knob-and-tube wiring.

Source: NRCan list of licensed service organizations, checked September 28, 2026. Call to confirm your street is covered and ask about wait times.

Insulation programs in Calgary

Provincial Clean Energy Improvement Program (Alberta) Property-tax financing for efficiency and renewable upgrades in participating Alberta municipalities — check your municipality's current intake Open · deadline Federal CMHC Eco Improvement premium refund 25% back on your CMHC mortgage insurance premium after $20,000 of energy renovations Open

Attic insulation inspection in Calgary: common questions

How much attic insulation should a Calgary house have?

Advisors commonly target around R-50 to R-60 in attics. Your EnerGuide report gives the recommendation for your house.

Can I top up the insulation myself?

Only after the air leaks are sealed and you've confirmed there is no vermiculite. The inspection tells you both.

Will more insulation stop ice dams?

Insulation helps, but ice dams are mostly caused by warm air leaking into the attic. Air sealing is the bigger fix.

Attic insulation inspection near Calgary

Attic insulation inspection in Red Deer136 kmAttic insulation inspection in Lethbridge177 kmAttic insulation inspection in Sherwood Park279 kmAttic insulation inspection in Edmonton280 kmAttic insulation inspection in Kelowna399 km All 70 cities →

Sources

Checked September 28, 2026. Census figures are for the municipality (Alberta); climate data is NRCan's HOT2000 station Calgary International (8 km away).

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