Preventing Frozen Pipes: HVAC Tips for Ontario Homeowners in London ON

Maintaining consistent indoor temperatures above 12°C keeps water flowing and prevents freezing in pipes during Ontario winters. Even heat distribution from a well-maintained furnace ensures warmth reaches all areas, including problem spots like exterior walls and basements. Regular HVAC maintenance catches issues like weak blowers that could create cold spots and increase pipe freeze risk. Schedule a pre-winter furnace inspection to ensure even heating throughout your home.

Common problem areas include exterior walls where pipes lack insulation, unheated basements and crawl spaces, attics and garages with exposed pipes, and kitchen or bathroom sinks on exterior walls. In older London homes, pay special attention to crawl spaces and uninsulated exterior walls. Adding pipe insulation and heat tape to these areas is essential for prevention. We offer free home assessments to identify vulnerable spots in your home.

Set minimum temperature hold to 15°C when away—prevents freezing without wasting energy. Use vacation mode to maintain low heat during absences, with alerts for temperature drops below safe levels. Geofencing auto-adjusts based on your location, ideal for London commuters. These settings provide superior winter home protection while keeping energy costs reasonable. We can help you configure your smart thermostat for optimal winter settings.

First, shut off the main water valve to prevent flooding when thawing. Then apply gentle heat using a hairdryer or warm towels—never use open flames. Open faucets to allow a drip and relieve pressure during thawing. If pipes have burst or you need HVAC assistance, call a professional immediately. Hawana offers 24/7 emergency service for frozen pipe issues. Call us at (647) 550-4220 any time.

Keep your home above 12°C at minimum, but 15°C is safer when away. For homes with known problem areas like uninsulated exterior walls, keep the temperature at 18°C or higher during extreme cold snaps. Never set your thermostat below 10°C, even when on vacation—the energy savings aren't worth the risk of burst pipes and water damage. Insurance claims for frozen pipe damage average $10,000–$20,000.

Add foam pipe insulation to exposed pipes in basements, crawl spaces, attics, and garages. For extremely cold areas, install heat tape or heat cables that automatically turn on when temperatures drop. Seal any drafts or holes that let cold air in. Keep cabinet doors open under sinks on exterior walls to allow warm air to circulate around pipes. We can install pipe insulation and heat tape during a winterization visit.

Yes. A well-maintained furnace ensures even heat distribution throughout your home, reducing cold spots where pipes could freeze. Weak blowers, dirty filters, or malfunctioning components can create temperature variations. Annual furnace maintenance prevents these issues. If certain rooms are consistently colder than others, your furnace may need balancing or you may have ductwork issues. We offer comprehensive furnace inspections to identify and fix these problems.

Yes. During extreme cold warnings (-20°C or lower), let faucets drip slightly, especially those on exterior walls. Moving water is less likely to freeze. Focus on kitchen sinks, bathroom vanities on outer walls, and basement utility sinks. A slow drip is sufficient—you don't need a steady stream. This simple step can prevent burst pipes during severe cold snaps. The cost of the water is negligible compared to potential flood damage.

Walk through your home on a cold day and feel for temperature differences. Check areas near exterior walls, in basements, and around windows. Use your hand to feel for drafts around pipes under sinks. A thermal camera can identify cold spots more precisely—some home improvement stores rent them. Pay special attention to rooms that are noticeably colder than the rest of your house. We offer thermal imaging inspections as part of our winterization service.

Never turn off your heat. Set thermostat to 15°C minimum. Have a friend or neighbor check your home daily. Shut off the main water supply and drain pipes if you'll be gone for an extended period. Open cabinet doors under sinks. Consider installing a smart thermostat with low-temperature alerts. These precautions prevent the nightmare of returning to a flooded home from burst pipes. Ask us about our winterization service before your next winter vacation.