What are the hidden costs homeowners should know about before starting a stucco project in Ottawa?

Every Ottawa stucco contractor can give you a price for the stucco itself — but the costs that catch homeowners off guard are the ones around the stucco. After years of seeing Ottawa homeowners get surprised by their final bills, here are the hidden costs you absolutely need to budget for.

The costs your quote might not include

Your stucco quote assumes the underlying wall is sound. If removing old stucco reveals rotted sheathing, damaged house wrap, or deteriorated OSB — common in Ottawa homes where moisture has been wicking behind failing stucco for years — those repairs are usually billed as extras. On Ottawa homes from the 1980s–2000s, damaged sheathing is found on roughly 1 in 4 re-stucco projects. Budget a 15–20% contingency for this.

2. Scaffolding ($1,500–$5,000)

Some contractors include scaffolding in their quote; others list it separately. For a two-storey Ottawa home, proper scaffolding (not just ladders) runs $1,500–$5,000 depending on the building footprint and how long the job takes. Always clarify whether it's included.

3. Window and door flashing upgrades ($1,200–$3,500)

When stucco is removed and re-applied, building inspectors (and good contractors) will flag inadequate flashing around windows and doors. Proper peel-and-stick membrane flashing at all penetrations is code-required under the Ontario Building Code, and upgrading old flashing during a stucco job is the right time to do it — but it adds cost. This is especially common on Ottawa homes where original flashing was just caulk over building paper.

4. Permit fees and inspections ($300–$1,500)

Ottawa requires building permits for new stucco cladding installations and for EIFS systems. A straightforward residential permit runs $300–$800. If your home is in a heritage overlay (Glebe, Sandy Hill, Rockcliffe), add heritage permit fees and potential design review costs.

5. Weather delays (indirect cost)

Stucco cannot be applied below 5°C or in rain. Ottawa's unpredictable spring and fall weather can stall a project for days or weeks. While you shouldn't be charged for weather delays directly, an extended project means longer scaffolding rental, longer disruption to your home, and potentially higher costs if the contractor needs to re-mobilize.

6. Landscaping damage ($500–$2,000)

Scaffolding, material staging, and mortar splatter take a toll on gardens, shrubs, and lawns along your foundation. Most contracts include a clause that they're not responsible for landscaping damage. Either move plantings yourself before work starts or budget for restoration afterward.

7. Utility disconnections ($200–$600)

Gas meters, electrical masts, AC units, and exterior fixtures often need to be temporarily moved to stucco behind them. Hydro Ottawa charges for meter pulls, and your HVAC company will charge to disconnect and reconnect the AC unit.

8. Colour matching on partial jobs ($300–$800 premium)

If you're only re-stuccoing part of your home, matching the new finish to weathered existing stucco is nearly impossible. Many homeowners end up painting the entire house afterward to unify the appearance — an additional $4,000–$8,000 they hadn't planned on.

Rule of thumb: Take your stucco quote and add 20–30% as a contingency fund. If you don't need it, great — but Ottawa's climate and housing stock make surprises more common than not.

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

• 613Bins
• JC Carpentry
• Custom By Arie
• Denys Builds Designs Renovations
• Nic’s D.U.C.T Works Inc