Reactive maintenance is always more expensive than preventive maintenance. Ontario landlords who let minor issues fester — a small roof leak, a furnace that hasn't been serviced, clogged drains — inevitably face emergency repairs, unhappy tenants, and potential RTA compliance issues. A systematic, seasonal maintenance calendar keeps your property in top condition and your costs predictable.

Why a Preventive Schedule Matters for Landlords

Ontario's RTA requires landlords to maintain their properties in a good state of repair and fit for habitation. This is not aspirational — it is a legal requirement. Tenants can file maintenance complaints with the City of Kitchener, Waterloo, or Cambridge, or apply to the LTB for a rent abatement if maintenance is neglected. A documented preventive maintenance program demonstrates your commitment to compliance and is evidence of good faith in any dispute.

Beyond legal compliance, preventive maintenance preserves property value. A building that is regularly serviced attracts better tenants, commands higher rents, and costs less to operate over time. Study after study shows that every dollar spent on preventive maintenance saves three to five dollars in emergency repairs.

Spring Maintenance Tasks (March–May)

Ontario winters are hard on buildings. Spring is the time to assess and repair winter damage before it compounds:

• Inspect roof for missing shingles, ice dam damage, and flashing issues
• Clean eavestroughs and downspouts; ensure they drain away from the foundation
• Inspect the foundation and basement for water infiltration or cracks
• Service air conditioning units before the cooling season; replace filters
• Check exterior caulking around windows and doors; re-caulk as needed
• Inspect parking lots and walkways for frost heave damage and crack repair
• Service landscaping irrigation systems; check backflow preventers
• Test all smoke detectors and carbon monoxide detectors; replace batteries

Summer Maintenance Tasks (June–August)

Summer is ideal for exterior work and longer-horizon capital projects:

• Inspect and treat wood decks, fences, and exterior stairs
• Conduct window cleaning and inspection — check for failed seals and hardware issues
• Inspect and clean dryer vents (a leading cause of residential fires)
• Check grading and drainage around the building; address any pooling
• Conduct mid-tenancy property inspections with proper 24-hour notice
• Arrange any capital projects — exterior painting, driveway resurfacing, roof replacement

Fall Maintenance Tasks (September–November)

Preparing for winter before it arrives is the most cost-effective thing an Ontario landlord can do:

• Service heating systems — furnace cleaning, filter replacement, boiler service
• Bleed baseboard radiators if applicable
• Inspect and clean chimney flues (if applicable)
• Clear eavestroughs of leaf debris
• Insulate exposed exterior pipes against freezing
• Shut off and drain exterior hose bibs
• Test heat tracing systems on roof edges and pipes
• Confirm snow removal contracts are in place
• Inspect weatherstripping on all exterior doors and windows

Winter Maintenance Tasks (December–February)

Winter in Waterloo Region brings significant snow and ice loads. Ongoing winter maintenance is essential:

• Monitor roof for ice damming; arrange safe removal if needed
• Ensure heating systems maintain minimum 21°C in occupied units (RTA requirement)
• Inspect common areas and parking lots after major snowfalls
• Check weatherstripping and door closers for cold infiltration
• Monitor for frozen pipe risk in unheated or poorly insulated areas
• Test emergency lighting and exit signs monthly

Frequently Asked Questions

What temperature must a landlord maintain in a rental unit?

Under Ontario's RTA and municipal property standards, landlords must maintain a minimum temperature of 20°C (some municipalities specify 21°C) in occupied rental units from September 1 through June 15.

Who is responsible for changing furnace filters?

This depends on the lease. If the landlord provides the furnace and it serves the whole building, they are typically responsible for maintenance. If a tenant controls a unit-specific furnace, the lease may assign filter changes to the tenant — but the furnace itself remains the landlord's responsibility to maintain.

How often should smoke detectors be tested?

Ontario's Fire Code requires smoke alarms to be tested annually. Best practice is to test them at each tenancy change and with seasonal maintenance checks.