In Saint John, a standard-quality windows renovation runs $4,715 to $10,845, prices below the Canadian average (index 82). A budget version starts around $3,300 and premium work reaches $17,351.
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| Line item | Range | Share |
|---|---|---|
| Windows | $1,722 – $3,875 | 51 % |
| Installation | $861 – $1,937 | 26 % |
| Interior Trim | $344 – $861 | 11 % |
| Weatherstripping | $115 – $287 | 4 % |
| Old Window Disposal | $172 – $402 | 5 % |
| Permits | $86 – $230 | 3 % |
Included
Not included
| Line item | Range | Share |
|---|---|---|
| Windows | $2,460 – $5,535 | 51 % |
| Installation | $1,230 – $2,768 | 26 % |
| Interior Trim | $492 – $1,230 | 11 % |
| Weatherstripping | $164 – $410 | 4 % |
| Old Window Disposal | $246 – $574 | 5 % |
| Permits | $123 – $328 | 3 % |
Included
Not included
| Line item | Range | Share |
|---|---|---|
| Windows | $3,936 – $8,856 | 51 % |
| Installation | $1,968 – $4,428 | 26 % |
| Interior Trim | $787 – $1,968 | 11 % |
| Weatherstripping | $262 – $656 | 4 % |
| Old Window Disposal | $394 – $918 | 5 % |
| Permits | $197 – $525 | 3 % |
Included
Not included
In Saint John, New Brunswick, a standard-quality windows renovation typically costs between $4,715 and $10,845 in 2026 — prices are below the Canadian average, with a local cost index of 82%. Expect around 1 to 3 days per window of work and a 70–80% return on investment at resale. Wind-driven rain requires self-adhered membranes at every opening and a rainscreen cavity behind siding — skimping here will cause leaks within 3–5 years.
Atlantic storm exposure (Fiona, Dorian, regular nor’easters) has made impact-rated tempered glass on east and south elevations standard in Saint John retrofits. Maritime Windows, AGS Windoors (NS-based), and Casa Bella distribute through local dealers at $1,100–$1,800 per opening installed. A typical 1,400 sq ft Saint John bungalow has 10–14 windows, putting full replacement in the $17,000–$30,000 range with 15% HST. Heritage Conservation Areas review may require lite-style matching on uptown heritage windows. Permits clear in 5–10 business days.
The City of Saint John requires permits for structural, plumbing, and electrical work through its Building and Inspection Services. Heritage Conservation Areas in the uptown core require additional review for exterior modifications. Permits are typically processed within 5–10 business days.
Window replacement in Canada should prioritize energy efficiency — look for ENERGY STAR® certified windows rated for your climate zone. Double-pane is minimum; triple-pane is recommended for zones 2 and 3 (most of Canada). Argon or krypton gas fill between panes adds 10–15% to cost but significantly improves insulation. Replace all windows at once if possible — contractors offer better per-window pricing for full-house jobs.
Window frame material is the largest cost factor: vinyl ($400–800/window), fiberglass ($600–1,200), aluminum-clad wood ($800–1,500), and full wood ($1,000–2,000+). Unusual sizes, bay/bow windows, and casement styles cost 30–100% more than standard double-hung. Installation complexity (brick vs. wood siding, second-floor access) affects labour costs.
Pro tip
Get two things in writing before you order: whether the quote is a full-frame replacement or an insert into the existing frame, and the ENERGY STAR certification of the exact model. Rebate programs change yearly and differ by province, so check the current one for your province on its official site before counting on it.
Saint John offers the lowest renovation costs in New Brunswick, with a rich stock of Victorian and Edwardian homes in the uptown area that attract renovation-minded buyers. The city's heritage architecture in areas like Germain Street and King Street East provides unique renovation opportunities. Labour costs are among the lowest in Canada, making even premium renovations surprisingly affordable compared to central Canadian cities.
Saint John's coastal climate brings heavy fog, salt air, and maritime moisture. Exterior materials must be corrosion-resistant — vinyl and fiber cement siding perform better than wood in this environment. The Bay of Fundy's extreme tides can affect coastal property drainage. Winters are moderate for Canada (-8°C average in January) but very damp.
New Brunswick is officially bilingual, and the municipal permit process in Moncton, Dieppe, Bathurst, and the northern francophone regions operates in both English and French — homeowners can submit applications and receive correspondence in either language. The 15% HST applies to both labour and materials. Saint John's downtown Heritage Conservation Areas (Germain Street, King Street East) require additional review for visible exterior changes on designated Loyalist-era properties, adding typically 4–6 weeks to the standard timeline; suburban properties in Riverview, Dieppe, and Quispamsis face no equivalent heritage layer.
New Brunswick combines harsh inland winters with coastal salt-air exposure along the Bay of Fundy and Northumberland Strait. Saint John in particular sees aggressive corrosion of galvanized hardware, making stainless fasteners worth the premium. Inland freeze-thaw is comparable to Quebec.
The bilingual workforce gives homeowners genuine access to both English and French contractor networks, which materially expands the bid pool in francophone-majority areas like the Acadian Peninsula. Most renovation materials come through distribution centres in Saint John and Moncton; rural properties pay a 2–5 day delivery surcharge but no significant price premium for standard items.
In 2026, a windows renovation in Saint John costs between $3,300 (budget) and $17,351 (premium). The average standard cost ranges from $4,715 to $10,845.
The most common surprises: code-compliance electrical upgrades ($1,500–$4,000), plumbing issues uncovered when walls are opened, asbestos or lead-paint abatement in older homes, and permit fees not included in the initial quote. Plan for a 15–20% contingency on top of the base budget in Saint John.
A windows renovation typically returns 70–80% at resale in Canada. The exact figure depends on material choices, the current state of the Saint John housing market, and quality of execution.
Demolition, painting, baseboards, and small fixtures are jobs many homeowners take on themselves. Avoid touching plumbing, electrical, or gas without permits and inspection — most municipalities prohibit it, and bad workmanship can void your home insurance. On a typical Saint John project, DIY can shave 10–20% off the total.
The City of Saint John requires permits for structural, plumbing, and electrical work through its Building and Inspection Services. Heritage Conservation Areas in the uptown core require additional review for exterior modifications. Permits are typically processed within 5–10 business days.
Complete guide
Read our complete national guide to windows costs