British Columbia · Energy · checked September 28, 2026

Thermal imaging (thermographic) inspections in Surrey

An infrared camera shows missing insulation, air leaks and damp spots without opening a wall, but only when it's at least 10°C colder outside than inside. Surrey's mild winters make timing the scan the main thing to plan.

Get matched in Surrey → How an infrared scan works
Hands holding an infrared camera aimed at a ceiling corner beside a frosty window; the screen shows a cold streak

Cost

Usually included; confirm

Best conditions

≥10°C inside/outside difference

Too little difference and leaks barely show

Winter design temperature

−6.3°C

The cold day heating is sized for

Houses built before 1961

5%

Older houses usually leak more and have less insulation

How Surrey is built

Surrey's houses by when they were built Ten house shapes, one for each tenth of Surrey's 139,390 houses. Before 1961: 5%, 1961–1990: 34%, 1991–2000: 18%, 2001 or later: 43%. Older houses glow hotter.
  • Before 1961 5%
  • 1961–1990 34%
  • 1991–2000 18%
  • 2001 or later 43%
Each house stands for one in ten of Surrey's 139,390 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. Rain marks the mild, wet winters: here moisture, not deep cold, is the main winter risk. Sources: Statistics Canada 2021 Census (table 98-10-0233-01), NRCan HOT2000 climate data.

When to book in Surrey

Surrey gets about 2,851 heating degree-days a year, a measure of how much heating its climate needs, and its winter design temperature, the cold day heating systems are sized for, is −6.3°C. Those figures come from the climate data for Pitt Meadows, the closest comparable location in that data set (13 km away) in HOT2000, the home-energy software Natural Resources Canada (NRCan) gives energy advisors. With winters that mild, a 10°C difference isn't guaranteed every day, so book the scan for a cold morning or evening, and ask the advisor to reschedule if the forecast is too warm.

A 1950s brick bungalow on a snowy suburban street at dusk, lamplight in the front window
The same bungalow as an infrared camera sees it: heat glowing around the door, window frames, eaves and the rim joist above the foundation
Illustration: the same house in visible light and in infrared. A winter scan shows where heat escapes: door and window edges, the eaves, and the rim joist above the foundation.

What the camera finds in Surrey houses

Of Surrey's 139,390 houses (single-detached, semi-detached, row houses and duplexes), 5% were built before 1961 and 39% before 1991, according to the 2021 Census. Older houses are where the camera earns its keep: empty or settled wall cavities, gaps at the top of walls, and cold corners where framing bridges the insulation. Run it with the blower door test depressurizing the house and every leak shows up as a cold streak.

What it costs

Most EnerGuide advisors include an infrared scan with the evaluation, but it isn't required, so confirm when you book. There's no provincial price list; the City of Nanaimo quotes $400–$500 as typical for an existing home. Several B.C. municipalities subsidize evaluations for their residents (see local programs below).

Coastal BC Lower Mainland and Vancouver Island

What this means in Surrey’s climate

Mild, wet winters and summer heat waves: fix moisture first, then cooling and heat pumps.

Why it matters here: Shows missing insulation and air leaks as temperature differences on walls and ceilings.

Best timing: December to February, early morning or evening, with at least 10°C between inside and outside, little sun and low wind.

  • Seal air leaks, then top up the attic. NRCan calls air sealing the most important retrofit. Pair it with attic insulation: today's new-home minimum here is about R-39, a useful target for older attics. Ask: Ask for a blower door test before and after sealing, so you can see the drop in ACH50.

What else homes in Surrey need →

Sources for this climate guide · checked October 26, 2026

NRCan-licensed service organizations serving Surrey

A service organization is a company that Natural Resources Canada (NRCan) licenses to deliver EnerGuide evaluations; its registered energy advisors do the home visit. Most EnerGuide advisors bring an infrared camera, but it isn't a required part of the evaluation, so confirm when you book. The scan is most useful with the blower door running.

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

Programs and local help in Surrey

Provincial · needs an evaluation BC Home Energy Improvement Bonus $20 for every percentage-point your home improves — $750 minimum, $2,000 maximum — or $300 for any two upgrades Open

Thermal imaging inspection in Surrey: common questions

When is the best time for a thermal imaging inspection in Surrey?

Pick a cold morning or evening in winter; the camera needs at least a 10°C difference between inside and outside, which isn't guaranteed every winter day in Surrey.

Can a thermal camera see through walls?

No. It reads surface temperatures. Missing insulation or an air leak shows up because it changes the temperature of the wall or ceiling surface.

Who does thermal imaging in Surrey?

Most of the 29 NRCan-licensed organizations serving Surrey bring an infrared camera to an EnerGuide evaluation; confirm when you book.

Is thermal imaging the same as a thermographic inspection?

Yes. Thermography, thermal imaging and infrared scanning all mean reading surface temperatures with an infrared camera.

Thermal imaging inspection near Surrey

Thermal imaging inspection in Delta13 kmThermal imaging inspection in Coquitlam14 kmThermal imaging inspection in Burnaby17 kmThermal imaging inspection in Langley17 kmThermal imaging inspection in Richmond22 km All 70 cities →

Sources

Checked September 28, 2026. Census figures are for the municipality (British Columbia); climate data is NRCan's HOT2000 station Pitt Meadows (13 km away).

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