Twice This Year on Ottawa Street, the Smoke Went Next Door

Two fires, seven months apart, show how differently neighbouring Hamilton businesses can be affected.

On October 29, Hamilton firefighters responded to a structure fire on Ottawa Street North, between Britannia and Edinburgh avenues.

The fire was on the second floor at the rear of 224 Ottawa Street North and had spread into the roof area. But when crews entered the ground-floor restaurants at 224 and 226 Ottawa Street North, they found something different.

Heavy smoke. No flames.

The Hamilton Fire Department estimated the combined fire and smoke damage at $350,000 to $400,000. Everyone inside had evacuated before crews arrived, and no injuries were reported.

If that sounds familiar, it should.

We've seen this on Ottawa Street before

On Easter Sunday, April 5, a fire at the rear of 211 Ottawa Street North spread into the roof area of a building with businesses on the ground floor and apartments above. Damage was estimated at more than $1 million.

The neighbouring businesses told another part of the story.

According to CHCH's follow-up reporting, a restaurant next door announced it would remain closed until further notice because of the fire's aftermath. Meanwhile, a gallery on the other side reported relatively minor smoke damage and expected to reopen within days.

Same fire. Same street. Very different outcomes next door.

Why the business next door can come out so differently

We don't know the full extent of the damage inside either business, and we won't speculate. But there are several factors that can explain why neighbouring businesses experience very different impacts from the same fire.

How the smoke got in. In mixed-use buildings like those in both fires, smoke can travel through openings, gaps, shared ceiling spaces and connected ventilation. A unit with more of those paths can take on more smoke than its distance from the fire would suggest.

What's inside. Different materials respond differently to smoke exposure. Non-porous surfaces may be easier to clean, while fabrics, upholstery, paper and other porous materials can present additional challenges with residue and odour.

What the space is used for. Different businesses have different recovery considerations. A gallery may need to assess artwork and other sensitive contents. A restaurant has food, food-contact surfaces and kitchen ventilation that may require additional attention before reopening.

In an earlier Hamilton incident, a May 2018 fire at a food storage and preparation facility on Rymal Road East caused extensive smoke damage. The City of Hamilton reported that its health department was asked to attend because food products had been exposed to smoke.

Water. Firefighting can bring water into spaces the fire never touched. Reporting on the April Ottawa Street fire pointed to both smoke and water damage affecting neighbouring businesses.

None of this is visible from the sidewalk.

That is why the ANSI/IICRC S700 standard for professional fire and smoke damage restoration addresses assessment of fire residues and odours in buildings, building systems and contents, including where a fire occurs in an adjoining or nearby building. A companion standard, ANSI/IICRC S590, covers assessing HVAC systems after a fire.

For commercial properties, a documented assessment of conditions, affected areas and the work required gives owners, property managers and insurance adjusters a shared starting point for the scope of work.

What Hamilton businesses should remember

Where a fire starts and where its smoke ends up are not the same thing. And the business next door is not a guide to yours.

When the flames are out, the next question is what the smoke reached.

Commercial Fire & Smoke Damage Restoration in Hamilton

ServiceMaster Restore of Hamilton provides commercial fire and smoke damage restoration services, including damage assessment, cleaning and recovery support.

Learn more about our Commercial Fire & Smoke Damage Restoration Services and Commercial Disaster Restoration Services.

Sources and further reading

October 2026 Ottawa Street fire

April 2026 Ottawa Street fire

Additional Hamilton incident

Industry standards