Ottawa winters are among the harshest in Canada, with temperatures regularly dropping below minus 25 degrees Celsius and annual snowfall averaging over 200 centimetres. These extreme conditions place enormous stress on every part of your home, from the roof to the foundation. Proactive winter maintenance is not optional for Ottawa homeowners. It is essential to protect your investment, avoid emergency repair situations, and maintain a safe, comfortable living environment throughout the long winter season. The cost of neglecting winter preparation can be staggering. Burst pipes alone can cause ...
Your furnace is the most critical system in your home during an Ottawa winter. A heating failure when temperatures drop to minus 30 degrees can lead to frozen pipes, structural damage, and dangerous living conditions within hours. Every Ottawa homeowner should have their furnace professionally serviced before the heating season begins, ideally in September or October before HVAC technicians are overloaded with emergency calls.
A professional furnace tune-up includes cleaning or replacing the air filter, inspecting and cleaning the burner assembly, checking the heat exchanger for cracks (which can leak carbon monoxide), testing the ignition system, verifying thermostat calibration, inspecting the blower motor and belt, che...
Every Ottawa home should have a backup heating plan in case the furnace fails during extreme cold. Options include a wood-burning fireplace or stove, electric space heaters (used safely and never unattended), or a portable propane heater rated for indoor use. Know the location of your gas shut-off v...
Frozen and burst pipes are one of the most common and expensive winter emergencies for Ottawa homeowners. Water expands when it freezes, generating enormous pressure inside pipes that can cause them to crack or burst. A single burst pipe can release hundreds of litres of water per hour, causing catastrophic damage to floors, walls, ceilings, and personal belongings. Prevention is straightforward but requires attention to detail.
Pipes in unheated areas of your home are most vulnerable to freezing. These include pipes in the garage, crawl spaces, exterior walls, and unfinished basement areas. Insulate these pipes with foam pipe insulation sleeves, which cost just a few dollars per metre and are easy to install. For pipes in ...
When Ottawa experiences extreme cold warnings with temperatures below minus 25 degrees Celsius, take additional precautions. Open kitchen and bathroom cabinet doors to allow warm air to circulate around pipes in exterior walls. Let faucets on exterior walls drip slightly, as moving water is less lik...
Ottawa's heavy snowfall combined with freeze-thaw cycles creates ideal conditions for ice dams. An ice dam forms when heat escaping through the roof melts snow on the upper portion of the roof, and the meltwater refreezes at the eaves where the roof surface is colder. This creates a dam of ice that traps water behind it, forcing it under shingles and into your home. Ice dam damage in Ottawa frequently costs between $2,000 and $10,000 to repair, including roof damage, water damage to interior fin...
The most effective long-term solution to ice dams is ensuring proper attic insulation and ventilation. The goal is to keep the roof surface cold so snow does not melt prematurely. Ottawa homes should have a minimum of R-60 attic insulation (approximately 16 to 20 inches of blown-in cellulose or fibr...
After heavy snowfalls, use a roof rake to remove snow from the lower three to four feet of the roof while standing safely on the ground. This removes the snow that is most likely to contribute to ice dam formation. Never climb onto an icy or snow-covered roof. If ice dams have already formed, do not...
The exterior of your home takes a beating during Ottawa winters. Wind, snow, ice, salt, and freeze-thaw cycles all cause wear and potential damage. Addressing exterior maintenance before winter arrives prevents minor issues from becoming major problems over the winter months.
Clean all gutters and downspouts thoroughly in late fall after the leaves have finished falling. Clogged gutters contribute to ice dam formation and can cause water to overflow and pool near your foundation. Ensure downspout extensions direct water at least six feet away from your foundation. In Ott...
Inspect all windows and doors for air leaks. Hold a lit incense stick near window and door frames on a windy day. If the smoke wavers or is drawn in a specific direction, you have an air leak. Replace worn weatherstripping on doors and apply caulk around window frames where gaps are visible. Install...
Ottawa winters regularly bring ice storms, power outages, and extreme cold events. Being prepared for these emergencies is an essential part of winter home maintenance. The 1998 ice storm left parts of Ottawa without power for days, and similar events, while rare, remain possible. Maintain an emergency kit that includes battery-powered flashlights and radio, extra batteries, blankets and warm clothing, a three-day supply of non-perishable food and water, a manual can opener, a first aid kit, and...
Staying on top of winter maintenance requires a regular schedule. Each month during winter, you should check and replace your furnace filter as needed, test carbon monoxide and smoke detectors, inspect your attic for signs of condensation, frost, or leaks, check exposed pipes in unheated areas for signs of freezing, clear snow from foundation vents, gas metres, and dryer vents, inspect your roof from the ground for ice dam formation, check that gutters and downspouts are functioning properly and...
Begin winterizing in late September to early October, before the first freeze. Start with furnace servicing and exterior tasks like gutter cleaning, pipe insulation, and hose disconnection. Aim to complete all preparation by mid-October. Ottawa's first hard frost typically occurs in late October, but cold snaps can arrive earlier.
Insulate pipes in unheated areas with foam sleeves, disconnect outdoor hoses, close interior shut-off valves for outdoor faucets, and keep your thermostat at a minimum of 17 degrees Celsius. During extreme cold snaps below minus 25 degrees, open cabinet doors under sinks on exterior walls and let faucets drip slightly.
Ice dams form when heat escaping from the attic melts snow on the roof. The meltwater runs down to the colder eaves and refreezes, creating a dam that traps water. The primary causes are inadequate attic insulation, poor attic ventilation, and air leaks from the living space into the attic.
A professional furnace tune-up in Ottawa typically costs between $150 and $250. This includes filter replacement, burner cleaning, heat exchanger inspection, safety control testing, and thermostat calibration. Annual servicing can prevent breakdowns that cost $500 to $2,000 or more during peak winter demand.
After heavy snowfalls, use a roof rake to remove snow from the lower three to four feet of the roof while standing on the ground. This helps prevent ice dams. Never climb onto a snow-covered or icy roof. If ice dams have formed, hire a professional who uses steam equipment to safely remove them without damaging your shingles.