British Columbia · Energy · checked September 28, 2026

Duct leakage and ductwork pressure testing in Kelowna

If some rooms never get warm in winter or cool in summer, the problem is often the ductwork, not the furnace or air conditioner. In the Kelowna area, 72% of households heat with a forced-air furnace, so duct losses affect many Kelowna homes.

Get matched in Kelowna → Duct leakage and airflow testing
A duct-testing fan on a basement floor connected by flexible duct to a furnace, a pressure gauge hanging from a joist

Typical cost

$200–$450

Forced-air furnaces

72%

Homes with ducts that can leak

Electric baseboards

Not published

Houses built before 1991

50%

Older houses usually leak more and have less insulation

How Kelowna is built

Kelowna's houses by when they were built Ten house shapes, one for each tenth of Kelowna's 41,965 houses. Before 1961: 8%, 1961–1990: 42%, 1991–2000: 16%, 2001 or later: 33%. Older houses glow hotter.
  • Before 1961 8%
  • 1961–1990 42%
  • 1991–2000 16%
  • 2001 or later 33%
Each house stands for one in ten of Kelowna's 41,965 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. More snow in the drawing means more heating degree-days: a longer, colder heating season. Sources: Statistics Canada 2021 Census (table 98-10-0233-01), NRCan HOT2000 climate data.

Who needs it in Kelowna

In the Kelowna area, 72% of households heat mainly with a forced-air furnace; natural gas is the main heating energy for 63% of households (Statistics Canada, 2023).

Of Kelowna's 41,965 houses (single-detached, semi-detached, row houses and duplexes), 8% were built before 1961 and 50% before 1991, according to the 2021 Census. Ducts in older houses often run through unheated spaces with taped or unsealed joints, and supply runs to the far rooms are the first to suffer.

The same leaks cost you in summer when the ducts carry cooling: air from a central air conditioner or heat pump that escapes into an attic, garage or crawlspace is cooling you paid for. Sealing and balancing the ducts helps in both seasons, and it's worth doing before a new heat pump goes onto old ductwork.

What the test shows

  • Total duct leakage, as a share of the system's airflow, measured by pressure-testing the ductwork with a calibrated duct-pressurization fan.
  • Airflow at each register, which explains why one bedroom is always cold.
  • Whether sealing and balancing will fix comfort problems before you buy bigger equipment.

Duct leakage testing in detail.

What it costs

About $200–$450 (a September 2026 planning range; quotes vary). It isn't part of a standard EnerGuide evaluation, so ask for it when you book if comfort is your main complaint.

BC Southern Interior Okanagan and Thompson valleys

What this means in Kelowna’s climate

Hot, smoky summers and cold winters: plan cooling, filtration and heating together.

Why it matters here: Many comfort complaints are duct or airflow problems rather than undersized equipment, and the filter slot limits how well you can filter smoke.

Best timing: Before choosing a heat pump.

  • Keep smoke out: seal leaks, filter well. When smoke rolls in, windows stay shut. A tighter house with a good filter keeps indoor air cleaner; Health Canada advises the highest-rated filter your system can handle. Ask: Ask the advisor where outside air leaks in, and whether your furnace or air handler can take a MERV 13 filter.
  • Size cooling and heating together. Long hot spells mean a heat pump has to handle summer cooling as well as winter heat. Equipment sized for only one season can leave you uncomfortable in the other. Ask: Ask for a room-by-room heat-loss calculation that also covers cooling, before you collect heat pump quotes.

What else homes in Kelowna need →

Sources for this climate guide · checked October 26, 2026

Communities served

Area guide for the surrounding region, with every town and hamlet listed: Okanagan area guide (West Kelowna, Vernon, Penticton, Summerland and more).

NRCan-licensed service organizations serving Kelowna

A service organization is a company that Natural Resources Canada (NRCan) licenses to deliver EnerGuide evaluations; its registered energy advisors do the home visit. Duct leakage testing isn't part of a standard EnerGuide evaluation. Some of these organizations offer it, as do HVAC contractors with duct-testing equipment, so ask when you call.

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

Programs in Kelowna

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 Provincial CleanBC Energy Savings Program Income-tiered CleanBC rebates paid through registered contractors: up to $13,000 toward a heat pump and up to $3,500 for a heat pump water heater — rebates, not free installs Open · deadline Federal National Heat Pump Rebate Announced October 8, 2026 and opening early 2027: up to $10,000 below the median income, $2,000 for other eligible homeowners Announced · opens 2027 Federal CMHC Eco Improvement premium refund A 25% energy-efficiency rebate on your CMHC mortgage insurance premium after $20,000 of energy renovations Open Federal Canada Greener Homes Affordability Program Free retrofits for low-to-median-income households through provincial partners in BC, Manitoba, Newfoundland and Labrador, Nova Scotia, PEI and Quebec (Quebec's 2026–27 intake has closed) — not available in Ontario Open · deadline

Duct leakage testing in Kelowna: common questions

How much does duct leakage testing cost in Kelowna?

Plan on about $200–$450. It is usually a separate service from an EnerGuide evaluation.

Is duct cleaning the same thing?

No. Cleaning removes dust; it doesn't find or seal leaks. A leakage test measures where air is lost.

What is ductwork pressure testing?

The same thing as a duct leakage test: registers are sealed, a calibrated fan pressurizes the ducts, and the airflow needed to hold the test pressure shows how leaky they are.

Should I close vents in unused rooms?

Usually not. Closing registers raises duct pressure and can increase leakage elsewhere in the system.

Duct leakage testing near Kelowna

Duct leakage testing in Kamloops110 kmDuct leakage testing in Abbotsford229 kmDuct leakage testing in Langley246 kmDuct leakage testing in Coquitlam259 kmDuct leakage testing in Surrey261 km All 70 cities →

Sources

Checked September 28, 2026. Census figures are for the municipality (British Columbia); climate data is NRCan's HOT2000 station Kelowna (6 km away).

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