How much does it cost to repair damaged siding on a New Brunswick home?

Siding repair costs in New Brunswick range from $300 to $800 for a small patch repair on vinyl siding up to $3,000 to $8,000 for larger sections of damaged fibre cement or wood siding, depending on the material, extent of damage, and whether underlying sheathing or moisture damage was discovered during the repair. The final number often hinges on what's hiding behind the damage.

For vinyl siding repairs — the most common siding type across NB — a single damaged panel or a small section of 5 to 10 linear feet can typically be repaired for $300 to $800 by an experienced siding contractor. The challenge with vinyl patch repairs is finding matching material. Vinyl siding profiles and colours change frequently, and a home sided 10 or 15 years ago often has a discontinued colour or profile that can't be matched exactly. Some contractors carry sample stock or can source close matches, but a perfect invisible repair is often not possible on older vinyl. In those cases, many NB homeowners choose to repair the area as closely as possible, use the repair as an opportunity to replace a full wall section, or plan for a full siding replacement within a few years.

Fibre cement and wood siding repairs run higher in cost — $1,000 to $3,000 for moderate damage to one wall section — primarily because the material costs more, cutting and fitting is more labour-intensive, and factory-finished products require field priming and painting to match. Cedar shingle repairs are particularly labour-intensive since individual shingles need to be hand-split or cut to weave into existing coursing cleanly.

What Drives Repair Costs Up

The most significant variable in any NB siding repair is what's underneath. Damage from impact (hail, falling branches, or the aftermath of an ice storm) is usually confined to the siding layer itself. But damage from long-term moisture infiltration — which is common in NB given our wet climate, freeze-thaw cycle intensity, and the number of homes with aging caulking and failed flashing — often involves deteriorated housewrap, rotted OSB sheathing, and in serious cases, compromised framing members. When a siding contractor opens up a damaged area and finds saturated sheathing or signs of mould behind the panels, repair costs can jump from $500 to $5,000 or more as the underlying issue needs to be corrected before any new siding goes on.

This is particularly relevant on NB homes built before 1990 that may have no housewrap, original fibreglass batt insulation that has settled away from the sheathing, and decades of imperfect caulking around windows and penetrations. It's not uncommon for what looks like a simple $600 siding repair to reveal a $3,000 to $5,000 sheathing and moisture remediation project once the old material is removed. This is why experienced contractors always open the affected area fully before quoting a final price — any quote without an inspection of the substrate is an estimate at best.

Spring is the season when NB siding damage from winter ice, wind, and ice damming most often becomes visible. If you're noticing warped panels, cracked sections, or gaps opening at seams after a hard NB winter, address them before summer's humidity and warm temperatures allow moisture to work further into the wall assembly.

Always request a WorkSafeNB clearance letter from any contractor performing work on your home, even for a small repair. Ask specifically whether they will inspect the substrate before finalizing the repair scope. A contractor who quotes a firm price without opening the damaged area first is either very experienced with the specific failure mode or making optimistic assumptions — clarify which one before signing.

For minor repairs, some materials, and situations where matching is possible, this is one area where a competent DIYer can tackle the job — replacing a few cracked vinyl panels with matching material is well within reach for someone comfortable with basic hand tools and a zip tool (siding unlock tool). But the moment any substrate work is involved or the damage extends near windows or at the foundation sill, professional assessment is the right call.

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Looking for experienced contractors? The New Brunswick Construction Network connects homeowners with qualified professionals:

• Gionetterenovations
• Thirty Four Renovations