Interior and northern British Columbia · Q3 2026
Windows and doors renovation cost in Interior and northern B.C.
Unit quality, installation method, and opening changes. The figures below are modelled for Interior and northern British Columbia using our 1.02× regional cost multiplier, on a detached home built 1960-1989 at a mid-range finish.
Typical planning budget
$11,800 to $19,050
Typical $14,200 · includes 17% contingency
Before contingency
Why Interior and northern B.C. differs
Interior and northern B.C. prices about 2% above Ottawa, which is the baseline our regional model is anchored to.
- Regional multiplier
- 1.02×
- Versus Ottawa
- +2%
- Province
- British Columbia
- Sales tax on services
- GST (5%)
Regional multipliers are anchored to Ottawa at 1.00 and scaled using Statistics Canada's Residential Renovation Price Index and Building Construction Price Index movements by census metropolitan area, then cross-checked against published contractor rate ranges. They are planning-level adjustments, not surveyed local quotes.
Areas this covers
Interior and northern British Columbia is modelled as a single labour market, so these municipalities share the same cost multiplier:
- Kelowna
- Kamloops
- Prince George
- Nelson
- Cranbrook
Somewhere else in British Columbia? Compare every British Columbia region.
Cost by finish level in Interior and northern B.C.
Finish level moves the number more than almost anything else you control. All three rows use the same Interior and northern B.C. multiplier and the same scope.
| Finish | Low | Typical | High |
|---|---|---|---|
| BudgetStock materials, simple details, value fixtures | $8,300 | $10,050 | $13,450 |
| Mid-rangeCommon homeowner choice: durable materials, better fixtures | $11,800 | $14,200 | $19,050 |
| PremiumHigh-end materials, custom detailing, designer fixtures | $17,600 | $21,200 | $28,350 |
Cost by size in Interior and northern B.C.
Typical all-in planning budgets at three representative sizes, mid-range finish.
| Size | Low | Typical | High |
|---|---|---|---|
| 3 windows | $6,750 | $8,150 | $10,900 |
| 8 windows | $11,800 | $14,200 | $19,050 |
| 15 windows | $18,900 | $22,700 | $30,500 |
Where the money goes
The $14,200 typical figure for Interior and northern B.C., broken into the lines a contractor quote should also separate.
| Category | Low | Typical | High |
|---|---|---|---|
| Materials | $5,800 | $7,000 | $9,400 |
| Labour | $3,800 | $4,550 | $6,100 |
| Demolition and disposal | $500 | $600 | $800 |
| Permit and design allowance | $0 | $0 | $0 |
| Subtotal | $10,100 | $12,150 | $16,300 |
| Contingency (17%) | $1,700 | $2,050 | $2,750 |
| Total planning budget | $11,800 | $14,200 | $19,050 |
Compared with the rest of British Columbia
Same project, same scope and finish, priced against every other British Columbia region we model.
| Region | Multiplier | Typical | vs Interior and northern B.C. |
|---|---|---|---|
| Interior and northern B.C. (this page) | 1.02× | $14,200 | — |
| Vancouver and Lower Mainland | 1.18× | $16,400 | +15% |
| Victoria and Vancouver Island | 1.10× | $15,350 | +8% |
Permits in British Columbia
Building permits are issued by your municipality or regional district under the BC Building Code.
At this scope our model does not flag a permit trigger, but that is not a ruling. Only your municipality can confirm what applies to your property.
Hiring in British Columbia
B.C. does not license renovation contractors. A BC Housing residential builder licence is only required for new homes and substantial reconstruction covered by home warranty insurance.
Trades that must be certified
- Electrical: Electrical work for hire requires a Technical Safety BC contractor licence and a permit.
- Gas: Gas fitting requires a licensed gas contractor and a gas permit.
Costs people forget on this project
Included as allowances above. Check any quote covers them too.
- Flashing, air sealing, and spray foam at each opening
- Interior casing and exterior capping
- Structural header work when openings change
- Scaffolding for upper floors
- Disposal of old units and glass
- Permit review when openings are added or enlarged
Typical schedule: 1 to 5 days for a typical package.
Questions homeowners ask
- Retrofit or full-frame installation?
- Retrofit keeps the existing frame and costs less. Full-frame removes everything to the studs and lets the installer correct rot, insulation, and flashing problems, which matters in older homes.
- Do window replacements need a permit?
- Same-size replacement often does not, but enlarging or adding an opening usually does because it affects structure. Confirm locally before ordering units.