A Houston cold front can turn a routine evening into a scramble for heat, faucet covers, and help with a leaking pipe. A little preparation before temperatures fall gives you time to spot problems while your home is still comfortable. Use this checklist before the season’s first heating cycle and whenever the local forecast calls for freezing weather.
Before the front: give your heating system a simple check
Start at the thermostat. Select Heat, check the schedule, and set the temperature a few degrees above the current room temperature. Replace batteries if your model uses them and shows a low-battery warning. A fan set to On may circulate unheated air between heating cycles; Auto normally runs it with the system.
- Inspect the filter. Replace a dirty disposable filter with the size and type specified for your equipment. Follow the airflow arrow and the manufacturer’s instructions. Do not operate the system without a filter.
- Clear the airflow path. Move furniture, rugs, and stored belongings away from supply vents and return grilles. Keep combustible materials away from heating equipment.
- Check safety alarms. Test smoke and carbon monoxide alarms according to their instructions and replace expired units. An alarm is not a substitute for equipment maintenance.
Run the heat while you are home and awake. Notice whether the room temperature rises, how the system sounds, and whether it completes a normal cycle. If it has not been serviced or something seems wrong, arrange professional heating service before relying on it overnight.
When temperatures drop: recognize common heating problems
The system runs but rooms stay cold. A dirty filter, obstructed return, thermostat setting, duct leakage, or an equipment problem can reduce comfort. Check the accessible basics, then have a technician investigate persistent uneven temperatures. Turning the thermostat far higher will not repair the underlying fault.
The heater repeatedly starts and stops. Restricted airflow and control or equipment faults can cause short cycling. Record what happens and request service instead of repeatedly resetting the system or its breaker. Do not remove panels or bypass safety switches.
A heat pump feels different from a furnace. Heat pump air can feel less hot while still warming the house. A brief defrost cycle can also change its operation. Judge performance by the indoor temperature and whether normal heating resumes. Thick ice, extended loss of heat, or unusual noise needs attention; do not chip ice off the unit.
Odors need careful judgment. Brief dust-related odors can occur at seasonal startup, but persistent burning smells, smoke, or electrical odors are not something to ignore. If you smell gas or a carbon monoxide alarm sounds, leave immediately and call 911 or the gas utility from outside. Do not operate switches or try to locate the leak. The CPSC’s carbon monoxide guidance explains why fuel-burning equipment requires particular care.
Before a freeze: protect the plumbing around your home
Walk the perimeter before dark. Disconnect and drain garden hoses, fit outdoor faucet covers, and insulate accessible exposed water lines using suitable materials. Pipes in garages, crawl spaces, and exterior-wall cabinets deserve extra attention. Locate your main water shutoff and make sure you can reach it.
Keep indoor heat consistent during freezing conditions. Open cabinets around vulnerable indoor plumbing so room air can circulate, moving cleaners out of children’s and pets’ reach. Follow local utility guidance about dripping faucets and any water-use restrictions. The American Red Cross frozen-pipe checklist provides additional preparation advice. Insulation reduces risk but cannot guarantee a pipe will not freeze.
The next morning: watch for low flow and hidden leaks
Little or no water from a faucet during freezing weather may indicate a frozen line. Do not use a torch or open flame to thaw it. If a pipe has burst, shut off the water if you can do so safely and call for emergency plumbing service. Avoid standing water near electrical equipment.
After temperatures rise, check under sinks, around outdoor faucets, and near exposed piping for drips, damp spots, or unexpected water sounds. A split pipe may become obvious only as it thaws. OneCall’s plumbing services can help address damage and identify vulnerable areas before the next freeze.
Get help before a small problem becomes a cold-night emergency
Have your thermostat reading, equipment type, symptoms, and any visible leak location ready when you call. For heating or plumbing concerns in your Houston home, contact OneCall Houston to arrange service. Early attention gives you more time to prepare and a clearer plan for the next temperature drop.