Patching brick or siding on an older Newmarket home is usually a plain repair job, unless the house sits inside the Lower Main Street South Heritage Conservation District. There, repointing and masonry repair are listed for heritage review, so call the Town first.
"Near Main Street" is not the same as "in the heritage district." Newmarket has one heritage conservation district, called the Lower Main Street South Heritage Conservation District, and the Town's heritage planning page describes it as the only one in town. A brick bungalow a few streets over may be an older home with the same crumbling mortar, but it plays by ordinary rules. A storefront or house on the protected stretch does not. Your first job is finding out which one you own.
Step one: confirm whether the property is covered
Don't guess from the look of the street. Planning Services (905-895-5193, planning@newmarket.ca) can tell you whether an address is inside the district or individually designated. The Town's page says changes to individually designated properties need a permit too, and that owners of designated properties should contact the Planning Department before making any changes. If the answer is "no, neither," you can stop worrying about heritage review and move on to the practical questions below.
What the Town lists for heritage review in the district
The Town's advisory group page lists the kinds of work reviewed in the district. Two items matter for this topic:
- Masonry: "repointing and repairing masonry, cleaning masonry of paint or grime, or painting a staining masonry" is on the list, so even a small patch of brick or joint work is not automatically treated as routine.
- Cladding: "removal of parging, external insulation and finish system, siding or facade screen from walls" is on the list as well.
Pointing a few failed joints is still masonry repair. Don't assume the size of the patch decides it.
What the Town says is exempt
The Town's heritage planning page says you don't need a heritage permit for general repairs to weather-stripping, eavestroughs, roofs, chimneys, fences and existing cladding. It also exempts repairing broken window panes to original specifications. Notice the tension: "general repairs to existing cladding" is exempt, while removing or replacing siding is on the review list, and masonry repair is listed separately. The page does not say where a masonry patch falls. If your job is on the line, ask the Cultural Heritage Planner (heritageplanning@newmarket.ca) and keep the reply in writing. It is a free email and much cheaper than redoing a wall.
Heritage permit is not the same as building permit
The Town notes that a heritage permit does not replace other approvals: you may also need a building permit, planning approvals or a sign permit. We could not find a Newmarket-specific page that says whether a small siding or brick patch needs a building permit, and other Ontario municipalities draw that line differently, especially for brick veneer versus ordinary siding. So treat it as a question for Newmarket's building staff before any larger wall section is rebuilt, not an assumption either way. Our York Region building permit guide explains how the process works generally.
Why the mortar is the part people get wrong
On older brick walls, the joint is meant to be the weak point. Research from Canada's National Research Council notes that mortar in older masonry needs to be compatible with the existing mortar and act as the "sacrificial" element, and that inappropriate repointing materials and methods can permanently damage older masonry. A mix with a high ratio of Portland cement is harder; adding lime makes mortar softer and more workable. Put a hard cement mortar into soft, old brick and the brick can spall instead of the joint. Practical consequences for you:
- Ask any mason what mortar they will use and why, before the quote is accepted.
- On a heritage-district property, expect the Town to care about this. Approval letters elsewhere in Ontario for repointing have come with conditions such as lime-based mortar and a sample of the mix approved before work starts.
- Fix the cause first. Repointing a wall that keeps getting wet from a failed eavestrough or a leaking downspout only repeats the repair.
Siding on an older home outside the district
Outside the district, siding repair on an older Newmarket house is mostly a matter of matching what is there: board profile, exposure, and the condition of the sheathing and paper behind it. Water behind a damaged board is the real cost driver, because a small visible patch can hide wet sheathing. Open the damaged section, check what is underneath, and only then decide whether it is a patch or a larger section.
What it costs
We could not find a reliable published price range for brick repointing or siding patching in York Region, so we won't invent one. What moves the price is well understood: wall height and access (scaffolding), how deep and wide the failed joints are, whether the brick itself is cracked or spalled, mortar type, and whether the damage hides moisture problems. Get at least two written quotes that say what mortar and what area, and compare like for like.
Quick answers
Do I need a heritage permit to repoint brick in Newmarket?
Only if the property is inside the Lower Main Street South Heritage Conservation District or individually designated. There, the Town lists repointing and repairing masonry as work that gets heritage review. Elsewhere in Newmarket it doesn't apply.
Is general repair of existing cladding exempt in the district?
The Town says general repairs to existing cladding don't need a heritage permit. Removing or replacing siding or parging is a different matter and is listed for review, so call the Town before assuming.
Why does mortar type matter on an older brick wall?
Hard modern mortar can be stronger than old, soft brick, so the brick takes the damage instead of the joint. Heritage guidance favours mortar softer than the brick, usually lime-based.
Who do I call at the Town of Newmarket?
Planning Services at 905-895-5193 or planning@newmarket.ca. The Cultural Heritage Planner is reachable at heritageplanning@newmarket.ca for district questions.
Can Rhodex help with a small brick or siding repair?
Yes. You can describe the wall and get a fixed price from a vetted craftsman before work starts. Tell them up front if the home is in the heritage district, so the right materials are priced. Start at rhodex.ca/get-a-quote.