Should You Paint the Brick on Your Toronto Victorian or Semi?

Red and buff brick is the face of old Toronto. Victorian and Edwardian semi-detached homes, bay-and-gable rows and pre-war detached houses fill neighbourhoods across the city, and plenty of owners eventually wonder whether to paint that brick a modern charcoal, white or deep green. Painting brick can look striking, but it is close to a one-way decision, and Toronto's freeze-thaw winters make the details matter. Here is what we tell homeowners before they commit.

Key takeaways

• Old brick and soft mortar need to release moisture. The wrong coating can trap water and lead to spalling in freeze-thaw cycles.
• Once brick is painted, getting back to bare brick is difficult and can damage the surface.
• Painted trim, porches and wood details are often the easier way to refresh a brick home.
• In a heritage conservation district, check with City Heritage Planning before painting masonry.

Why old Toronto brick is different

Many older Toronto homes were built with softer, more porous brick and lime-based mortar. These walls work by absorbing some moisture and then letting it dry out again, through the brick faces and the mortar joints. That breathing is part of what has kept them standing for a century or more.

Our winters add a twist. When water soaks into brick and then freezes, it expands. Repeated freezing and thawing through the shoulder seasons can push the face off bricks, which is known as spalling, and break down weak mortar. Anything that keeps water locked inside the wall can make that damage worse.

The risks of painting brick

Trapped moisture

Many ordinary exterior paints form a film that slows the movement of water vapour. On a wall that relies on drying outward, that film can hold moisture behind it. The usual signs are bubbling or peeling paint, white salty deposits pushing through, and crumbling brick faces after a few winters.

It is hard to undo

Removing paint from old brick is slow and costly, and aggressive methods can strip the hard outer face of the brick and leave it more vulnerable to water. If you think you might want the original look back someday, painting is probably not the right move.

Ongoing maintenance

Bare brick needs very little maintenance beyond repointing every so often. Painted brick becomes a painted surface that will eventually need cleaning, touch-ups and recoating.

If you decide to paint

Some brick is already painted, and some owners have good reasons to paint, such as mismatched repairs or an earlier coating that is failing. If you go ahead, the approach makes all the difference:

• Fix water problems first. Repair eavestroughs and downspouts, flashing and sills, and look for leaks before any coating goes on.
• Repoint failing mortar with a mortar compatible with the existing brick. Mortar that is too hard can cause the bricks themselves to crack.
• Clean gently. Avoid sandblasting and high-pressure washing, which can damage old brick. Let the wall dry thoroughly.
• Choose a breathable masonry coating. Products made for masonry, including mineral-based and some masonry-specific acrylic systems, are designed to let vapour escape. Read the manufacturer's data sheet and confirm the product suits older brick.
• Respect the weather. Follow the label's temperature and drying requirements, and avoid painting when a frost or rain is due before the coating has cured.

Heritage conservation districts and designated homes

Toronto has many heritage conservation districts, and homes inside them, or individually designated properties, can need a heritage permit for exterior alterations. The City's Municipal Code Chapter 103, Heritage lists certain alterations in a heritage conservation district for which a heritage permit is deemed to be issued. The first item on that list is "Painting of wood, stucco or metal finishes." Brick and other masonry are not on that line, so painting masonry in a district is not covered by it.

The same list also covers alterations that are not visible from a street, but every property and district plan is different. If your home is in a district or designated, contact City Heritage Planning and read the Heritage Permit Guide before you plan to paint brick. Ask before you buy materials or book the work.

Better ways to refresh a brick home

Often the biggest improvement comes from painting everything around the brick:

• Trim, soffits and fascia in a crisp new colour can modernise the whole facade.
• Porches, columns and railings, often wood on Victorian homes, are made to be painted and benefit from regular care.
• Bargeboard and gable details on bay-and-gable homes really stand out when restored and painted.
• Front doors and window sashes add personality without touching the masonry.
• Cleaning and repointing the brick itself can brighten a facade that looks tired.

When choosing colours, look at the brick's own tones. Red brick tends to pair well with deep greens, blacks, creams and warm greys, while buff brick suits softer, warmer palettes. Test sample patches on the trim and view them at different times of day.

Semi-detached homes: think about your neighbour

On a semi-detached or row house, your facade is half of a shared building. Painting one side can make the pair look mismatched, and work on shared walls, parapets or porches may affect your neighbour's property. A conversation before you start goes a long way, and some owners coordinate trim colours so the whole building looks considered.

Frequently asked questions

Is it bad to paint brick on an old Toronto house?

It is not automatically bad, but it carries real risk on older, softer brick. Moisture trapped behind the wrong coating can lead to peeling and spalling through our freeze-thaw cycles.

Do I need a permit to paint brick in a heritage district?

Chapter 103's deemed-permit list covers painting wood, stucco or metal finishes, not masonry. Contact City Heritage Planning before painting brick.

My brick is already painted and peeling. What now?

Find and fix the source of moisture first, then remove loose paint gently and recoat with a breathable masonry product. Avoid sandblasting old brick.

What is the best time of year to paint exteriors in Toronto?

Late spring through early autumn, when temperatures stay above label minimums and the wall has had time to dry out.

Ready to get started?

Thinking about painted brick, or a fresh look for the trim and porch on your Toronto home? We can walk you through the options that suit your house. Get your free painting quote from 1-800 PRO PAINTER.

Photo: Sehjad Khoja / Pexels