Brick repointing in Ottawa costs approximately $15 to $30 per square foot of wall area in 2026, with most homeowners paying $3,500 to $12,000 for a partial job and $15,000 to $35,000+ for a full whole-house repoint. Chimney repointing — the most common single job in this city — typically runs $1,500 to $4,500 depending on height, access, and how much of the crown and cap needs rebuilding. Smaller spot repairs on an accessible ground-level wall can be as little as $900 to $2,500. Ottawa's freeze-thaw climate is the reason this work is so common here: water enters failing mortar joints, freezes,...
Masons price repointing by the square foot of wall face, and the rate depends heavily on access and mortar type. A straightforward ground-level or single-storey wall in standard Portland-based mortar runs about $15–$22 per square foot in Ottawa. Second- and third-storey work requiring scaffolding pushes that to $22–$30 per square foot, since setup and safety compliance consume a real share of the labour. Heritage work with custom-matched lime mortar and hand-raking of joints commands $28–$45 per square foot because the joints must be cut out carefully without damaging soft historic brick, and the mortar mix has to be tested for colour, texture, and strength. Practically, that translates to: a chimney at $1,500–$4,500; one gable-end wall at $4,000–$9,000; a full four-sided repoint on a typical two-storey Ottawa home at $18,000–$35,000; and a heritage brick century home considerably more. Quotes should always state the square footage being repointed and whether the price is for spot repair or 100% of joints.
If brick faces are spalling, the wall is bulging, or courses have shifted, repointing alone won't fix it — that section needs to be taken down and rebuilt at roughly $40–$70 per square foot. An honest mason will tell you which sections need which treatment.
Ottawa averages well over 60 freeze-thaw cycles per year, and each one drives the same destructive process. Rain or meltwater soaks into porous mortar joints, temperatures drop overnight, the trapped water expands roughly nine percent as it turns to ice, and microscopic cracks widen. Repeat that dozens of times each winter for three decades and the joints crumble to sand. Road salt and de-icing spray accelerate the damage on lower courses near driveways and walkways, and improper grading or a downspout discharging against the foundation soaks the same wall section over and over. Chimneys fail first because they're exposed on all four sides, take direct weather from above, and have no interior heat protecting them once the fireplace is unused. Watch for the classic warning signs: mortar you can gouge out with a screwdriver or key, sandy debris collecting at the base of a wall, visible gaps or hairline cracks between brick and mortar, white efflorescence staining, and damp patches on interior walls. Catching it at the sandy-debris stage costs a fraction of waiting until brick starts falling.
This is the mistake that costs Ottawa homeowners the most money. Homes built before roughly 1930 — the bulk of the housing stock in the Glebe, Sandy Hill, Centretown, Lowertown, New Edinburgh, and Hintonburg — were built with soft, porous brick and lime-based mortar. Lime mortar is deliberately softer than the brick, so it absorbs movement and lets moisture evaporate out through the joints. Repointing a heritage wall with hard modern Portland cement traps moisture inside the brick, and when it freezes the brick face spalls off instead of the mortar. The result is permanent, expensive damage: brick replacement runs far more than repointing ever would. A competent Ottawa heritage mason will analyze the existing mortar, match its composition, colour, and joint profile, and cut joints by hand or with careful grinding rather than aggressive power tools. Properties inside a Heritage Conservation District or individually designated under the Ontario Heritage Act may also need a heritage permit from the City before exterior masonry work begins, so check your property's status early — this can add weeks to the schedule.
Ask any mason quoting a pre-1930 home what mortar mix they intend to use and why. A confident answer referencing lime content and matching the existing mortar's strength is what you want. A shrug and "standard mix" is a reason to keep shopping.
Repointing quotes carry line items beyond the mortar work itself. Scaffolding or a boom lift is the largest: expect $800–$3,000 for a residential job depending on duration and how many elevations need staging, and note that tight urban lots in the Glebe or Old Ottawa South can complicate setup and add cost. Chimney work often reveals a failing crown ($600–$1,500 to rebuild) or a missing rain cap ($200–$500 installed), and a chimney past saving may need full rebuilding from the roofline up at $3,500–$9,000. Brick replacement for spalled units runs $20–$45 each installed, and sourcing a colour and size match for a century home can add cost and lead time. Sealing or applying a breathable water repellent afterward runs $1.50–$4 per square foot and is optional — and specifically inadvisable on heritage brick, where it can trap moisture. Cleanup and disposal of mortar debris is usually included but worth confirming. Finally, weather governs the schedule: repointing needs temperatures reliably above 5°C, so Ottawa's season effectively runs May through October.
Repointing is preventive maintenance with an unusually clear payoff. Deferring it lets water into the wall cavity, which leads to interior damage, insulation problems, structural deterioration of the brick itself, and eventually rebuild costs several times higher than the repoint would have been. Buyers and home inspectors flag crumbling mortar quickly, and it becomes a negotiating point on any Ottawa sale. Because good masons are booked out weeks or months during the short season, get quotes in late winter or early spring for summer work rather than calling in August. Ask each contractor for the square footage they measured, the mortar mix specification, the joint profile they'll match, the access method, and a written workmanship warranty — three to five years is typical for quality masonry. Verify WSIB and liability coverage, since this is work-at-height on your property. Request addresses of two or three Ottawa jobs from previous seasons and go look at them; weathered results from a year or two ago tell you far more than a fresh photo.
In 2026, brick repointing in Ottawa costs about $15–$30 per square foot of wall area. Most partial jobs run $3,500–$12,000, and a full whole-house repoint on a two-storey home typically costs $18,000–$35,000. Heritage lime-mortar work runs higher, at roughly $28–$45 per square foot.
Chimney repointing in Ottawa typically costs $1,500–$4,500 depending on height and access. Rebuilding a failing crown adds $600–$1,500, and a full chimney rebuild from the roofline up runs $3,500–$9,000.
Ottawa's 60-plus annual freeze-thaw cycles typically mean mortar needs attention every 25–40 years, sooner than in milder climates. Chimneys and salt-exposed lower courses usually fail first, so inspect them every few years for sandy debris and gouging mortar.
It's possible on a small, accessible ground-level area, but it's slow, physically demanding work, and improper joint cutting or the wrong mortar mix causes damage that costs far more to fix than hiring a mason. On pre-1930 Ottawa homes with soft brick, DIY repointing with hard Portland cement can permanently spall the brick faces.
Homes built before roughly 1930 need soft lime-based mortar matched to the original mix. Hard modern Portland cement traps moisture in soft historic brick and causes the brick face to spall during freeze-thaw cycles. Always confirm the mortar specification in writing before work starts.
Repointing requires temperatures reliably above 5°C so the mortar cures properly, which limits the Ottawa season to roughly May through October. Book quotes in late winter or early spring, because good masons fill their summer schedules quickly.