Texas home preparation for extreme heat and power outages should begin well before summer temperatures become dangerous. Air-conditioning maintenance, emergency supplies and backup plans are much easier to arrange when the power is still working and local stores are fully stocked.
Extreme heat can affect anyone, but infants, older adults, pregnant people and individuals with certain medical conditions may face greater risks. A prolonged outage can also affect refrigerated medication, food safety, communication devices and electrically powered medical equipment.
A useful plan does not require purchasing every emergency product available. It requires understanding how quickly the home becomes hot, identifying essential household needs and knowing when to relocate to a safer place.
Why Texas Home Preparation Matters
Texas homes face a combination of high temperatures, heavy air-conditioning demand and weather-related outage risks. Severe thunderstorms, hurricanes, equipment damage and local grid problems may interrupt electricity when residents need cooling the most.
Indoor temperatures can continue rising after the power goes out. Upper-floor apartments, manufactured homes and properties with limited insulation may become uncomfortable or unsafe more quickly than shaded, energy-efficient homes.
Texas home preparation should address two different situations:
- Extremely hot weather while electricity remains available
- A local or widespread outage that prevents normal cooling
The same plan may not work for both situations. Energy-saving measures may help reduce a normal electricity bill, but an outage requires emergency supplies, communication arrangements and a safe relocation option.
Understand How Your Home Retains Heat
Homes absorb and release heat differently. Construction materials, roof exposure, insulation, window direction and surrounding shade can all affect indoor temperatures.
Conditions that may cause a home to become hotter include:
- Limited attic insulation
- Air leaks around windows and doors
- Large west-facing windows
- Dark roofing materials
- Limited tree or structural shade
- Leaking air ducts
- An aging air-conditioning system
- Upper-floor living areas
- Poor attic ventilation
- Heat-producing appliances
Walk through the property during a hot afternoon and compare the rooms. Look for areas that feel warmer, receive strong sunlight or have weak airflow from the vents.
A room that becomes significantly hotter than the rest of the property may need better window coverings, air sealing, insulation or professional evaluation.
Schedule Air-Conditioning Maintenance Early
Do not wait until the hottest week of the year to discover that the air-conditioning system cannot maintain a safe indoor temperature.
Homeowners should follow the manufacturer’s maintenance instructions and arrange qualified assistance when the system shows signs of a problem. Renters should notify the landlord or property manager promptly and retain copies of written maintenance requests.
Possible warning signs include:
- Weak airflow from vents
- Unusual noises or odors
- Water around the indoor equipment
- Uneven temperatures between rooms
- Frequent starting and stopping
- Continuous operation without adequate cooling
- Unexpected increases in electricity use
- Thermostat problems
A cooling system may run for long periods during extreme heat without necessarily being defective. However, poor performance can also result from dirty filters, refrigerant problems, leaking ducts, equipment wear or insufficient insulation.
Electrical and refrigerant components should only be inspected or repaired by appropriately qualified professionals.
Check the Air Filter
A clogged air filter can restrict airflow and force the cooling system to work harder.
Inspect the filter regularly and replace or clean it according to the equipment manufacturer’s instructions. Replacement frequency can depend on the filter type, pets, allergies, construction dust and the number of people in the household.
Confirm that the replacement filter is the correct size. A filter with an unsuitable rating may also reduce airflow if the system was not designed for it.
Renters should review the lease to determine who is responsible for replacing filters. Keeping a record of filter changes may be helpful if a maintenance disagreement develops.
Reduce Heat Entering Through Windows
Direct sunlight can raise indoor temperatures, particularly through windows receiving afternoon sun.
Possible heat-reduction measures include:
- Closing blinds or curtains before direct sunlight reaches the window
- Using properly installed solar screens
- Adding approved exterior shading
- Sealing gaps around window frames
- Using suitable energy-efficient window coverings
- Maintaining appropriate shade vegetation
Homeowners should check municipal requirements and HOA restrictions before making visible exterior changes. Renters should obtain permission before installing window films, screens or permanent coverings.
Do not block windows that may be needed as emergency exits.
Inspect Insulation and Air Leaks
Attic heat can enter the living space when insulation is inadequate or gaps allow cooled air to escape.
Common leakage points may include:
- Attic access panels
- Recessed lighting
- Plumbing penetrations
- Utility openings
- Door and window frames
- Duct joints
- Openings around wiring
The U.S. Department of Energy’s official Energy Saver resources explain insulation, air sealing and home energy assessments.
Insulation work can involve electrical clearances, ventilation, moisture control and fire-safety requirements. Significant improvements should be planned according to applicable building codes and completed with qualified assistance when necessary.
Use the Thermostat Safely
A modestly higher thermostat setting may reduce electricity consumption, but household health and safety should remain the priority.
There is no single temperature appropriate for every person or property. Age, health conditions, humidity, medications and building characteristics can affect heat tolerance.
Comfort may be improved by combining a reasonable thermostat setting with:
- Closed curtains or blinds
- Ceiling or portable fans
- Lightweight clothing
- Regular hydration
- Reduced oven use
- Cool showers
- Limited strenuous activity
Fans move air and may improve comfort, but they do not reduce the room’s actual temperature. During severe heat, relying on a fan alone may not protect someone from heat-related illness.
Recognize Heat-Related Illness
Every household member should know the possible warning signs of heat-related illness.
Heat exhaustion symptoms may include:
- Heavy sweating
- Weakness
- Headache
- Dizziness
- Nausea
- Muscle cramps
- Cool or clammy skin
- Faintness
Possible heat-stroke symptoms include confusion, loss of consciousness, seizures and a dangerously high body temperature. Heat stroke is a medical emergency.
Call 911 when heat stroke is suspected or symptoms are severe. Move the person to a cooler location and follow emergency instructions. The federal Ready.gov extreme heat guidance provides additional information about heat risks and household preparation.
Identify Household Members Who Need Extra Support
Some people require a more detailed Texas home preparation plan.
Consider the needs of:
- Infants and young children
- Older adults
- Pregnant household members
- People with heart or respiratory conditions
- Individuals with limited mobility
- People taking heat-sensitive medication
- People using powered medical equipment
- Household pets
If someone depends on electrically powered medical equipment, discuss outage planning with the equipment provider and an appropriate healthcare professional. Determine how long backup batteries will operate and where the person can relocate safely.
Check on relatives and neighbors who live alone, lack transportation or may not recognize when indoor heat has become dangerous.
Create a Cooling Relocation Plan
Every household should have at least one place to go if the home becomes dangerously hot.
Possible cooling destinations include:
- A public cooling center
- A public library
- A community center
- An emergency shelter
- The home of a relative or friend
- Another accessible air-conditioned public building
Confirm that the destination will be open and suitable for the household. Consider transportation, accessibility, medication storage, medical equipment and pet policies.
Local governments and emergency-management agencies may announce temporary cooling centers during extreme conditions. Keep more than one destination in the plan because hours and availability may change.
Do not wait until someone becomes seriously ill before leaving an unsafe home.
Prepare an Emergency Supply Kit
Texas home preparation should include supplies that can be used without household electricity.
A basic heat and outage kit may contain:
- Drinking water
- Shelf-stable food
- A manual can opener
- Flashlights
- Spare batteries
- Phone power banks
- A battery-powered radio
- Essential medication
- First-aid supplies
- Hygiene products
- Copies of important documents
- Emergency contact information
- Battery-powered fans
- Pet food and water
- Appliance or room thermometers
Choose food that can be safely eaten without cooking. Store supplies where household members can reach them easily.
Inspect the kit periodically and replace expired food, medication and batteries.
Keep Communication Devices Charged
A working phone can provide weather alerts, local outage updates and access to emergency services.
Before extreme heat arrives:
- Charge mobile phones
- Charge portable power banks
- Enable emergency alerts
- Save the utility’s outage number
- Save local emergency contacts
- Keep a written contact list
- Test backup charging equipment
- Download essential information for offline access
Mobile networks may become congested during a widespread emergency. Designate an out-of-area contact whom household members can update if local communication becomes difficult.
Conserve phone power when charging options are limited.
Understand ERCOT Alerts
The Electric Reliability Council of Texas manages much of the Texas electric grid, although some parts of the state operate outside the ERCOT region.
ERCOT uses different notifications to communicate grid conditions. These may include advance weather notices, voluntary conservation requests and higher-level conservation appeals.
Residents can review current conditions and notification options through the official ERCOT Texas Advisory and Notification System.
An ERCOT notification does not necessarily mean that an individual property will lose power. It is also different from a report about a local outage caused by damaged equipment or neighborhood infrastructure.
Know Which Utility Handles the Outage
In areas with retail electricity competition, the company that sends the electricity bill may not be responsible for repairing poles, wires and local distribution equipment.
The transmission and distribution utility typically handles local outage reporting and restoration. Its contact information may appear on the electricity bill.
Save the correct outage number before an emergency. Be prepared to provide:
- The service address
- Account or meter information
- The approximate time the outage began
- Details about visible equipment damage
- Whether neighboring properties also lost power
Never approach a fallen power line or damaged electrical equipment. Keep people and pets away and report the hazard to the appropriate utility or emergency authority.
Protect Refrigerated and Frozen Food
Food can become unsafe during a prolonged power outage.
Keep refrigerator and freezer doors closed as much as possible. Every unnecessary opening allows cold air to escape.
According to CDC guidance, an unopened refrigerator may keep food cold for approximately four hours. A full, unopened freezer may maintain its temperature for about 48 hours, while a half-full freezer may last approximately 24 hours.
Appliance thermometers can help residents evaluate internal temperatures. Do not rely only on smell or appearance when deciding whether food remains safe.
The CDC provides official power-outage safety guidance covering food, generators and other outage hazards.
Plan for Refrigerated Medication
Medication storage requirements are product-specific. Some medications may lose effectiveness after being kept outside the required temperature range.
Before an outage, ask a pharmacist or appropriate healthcare professional:
- What temperature the medication requires
- How long it may remain unrefrigerated
- Whether an insulated container is appropriate
- Whether direct contact with ice could cause damage
- How to obtain an emergency replacement
- What to do after a temperature excursion
Do not apply ordinary food-storage guidelines to medication. Keep prescription information, dosage instructions and healthcare contact details accessible.
Use Portable Generators Safely
Portable generators can produce deadly carbon monoxide and create serious electrical hazards.
Generators should be operated outdoors and at least 20 feet from windows, doors and vents, consistent with current CDC safety guidance. Never operate one inside a home, garage, basement, carport or another enclosed or partially enclosed space.
Opening a garage door does not make indoor generator use safe.
Additional precautions include:
- Follow the manufacturer’s instructions
- Keep the generator dry
- Use correctly rated outdoor extension cords
- Allow the equipment to cool before refueling
- Store fuel away from living areas
- Keep children and pets away
- Install working carbon monoxide alarms
- Avoid operating more equipment than the generator can support
Never connect a portable generator directly to household wiring without an approved transfer system. An improper connection can send electricity back through utility lines and endanger utility workers and nearby residents.
Permanent generator connections should be designed and installed by qualified professionals according to applicable permit and electrical-code requirements.
Never Use Outdoor Cooking Equipment Indoors
Charcoal grills, gas grills, camp stoves and similar fuel-burning equipment should never be operated inside a home, garage or other enclosed area.
These products can release carbon monoxide, which cannot be seen or smelled. Opening a window or door does not make indoor operation safe.
Do not use a gas oven or stovetop as a substitute for household heating, cooling or ventilation. Cooking indoors may also add unwanted heat during an outage.
Install Carbon Monoxide Alarms
Carbon monoxide alarms are especially important in homes with fuel-burning appliances, attached garages or backup generators.
Install alarms in appropriate locations according to manufacturer instructions and applicable building requirements. Test them regularly and replace batteries or units as directed.
Possible carbon monoxide poisoning symptoms include:
- Headache
- Dizziness
- Weakness
- Nausea
- Chest pain
- Confusion
- Loss of consciousness
If an alarm sounds or someone develops possible symptoms, move everyone into fresh air and call 911. Do not return until emergency professionals confirm that the building is safe.
Choose Backup Power Based on Essential Needs
A backup power source does not necessarily need to operate the entire home.
Identify the equipment that is genuinely essential, which may include:
- Medical devices
- Refrigerated medication
- Communication equipment
- Limited lighting
- A refrigerator
- A small cooling area
Portable battery systems may support phones, lights or certain low-power devices. However, capacity, connection requirements and equipment compatibility must be verified.
Air conditioners and major appliances may require more power than a portable battery or generator can safely supply. Do not assume that every household device can operate simultaneously.
Test backup equipment before an emergency and maintain it according to the manufacturer’s instructions.
Avoid Electrical Overloads
Using too many devices on one cord, outlet or backup power source can create a fire hazard.
Use extension cords with appropriate electrical ratings. Do not connect multiple power strips together or run damaged cords beneath rugs, through doorways or across standing water.
Stop using a cord, plug or power source that becomes unusually hot, damaged or discolored.
Major appliances and air-conditioning equipment may require dedicated connections that ordinary extension cords cannot safely provide.
Prepare Renters and Apartment Residents
Renters may have limited control over the building’s major systems, but they can still make an effective Texas home preparation plan.
Before summer, ask the landlord or property manager:
- How emergency maintenance requests are submitted
- Who handles air-conditioning failures
- Whether portable air conditioners are allowed
- Whether generators are prohibited
- How secured doors and gates operate during outages
- Whether elevators have backup power
- Where emergency notices are posted
- Whether the property has a designated cooling area
Residents who cannot safely use stairs should plan for elevator outages.
Never operate a generator on an apartment balcony, in a hallway or near neighboring windows and doors.
Prepare for Garage Doors and Community Gates
Electric garage doors and controlled community gates may stop working during an outage.
Learn how the garage door’s manual release operates. A heavy, damaged or poorly balanced door can cause injury, so do not attempt to lift one that appears unsafe.
Residents of an HOA or managed community should ask how entrance and exit gates work without electricity. Keep approved access instructions where every driver in the household can find them.
Maintain enough fuel or electric-vehicle charge to reach a cooling destination. An outage may make nearby fuel pumps or charging stations temporarily unavailable.
Include Pets in the Plan
Pets can also suffer from heat-related illness.
A household emergency plan should include:
- Drinking water
- Food
- Medication
- Carriers or leashes
- Identification
- Vaccination records
- A cooling destination that accepts animals
Never leave an animal inside a parked vehicle, even briefly.
Cooling centers and emergency shelters may have different animal policies. Identify an alternative destination before an emergency occurs.
Check the Property After Power Returns
Electricity restoration does not mean every outage-related problem has been resolved.
After power returns:
- Evaluate refrigerated and frozen food
- Check medication storage conditions
- Inspect the cooling system
- Recharge portable batteries
- Test carbon monoxide alarms
- Replenish emergency supplies
- Look for signs of electrical damage
- Reset essential devices carefully
Avoid turning on every major appliance at the same time. Follow utility and equipment instructions when restarting household systems.
If you smell burning, see damaged wiring or notice unusual electrical behavior, move away from the hazard and seek qualified assistance.
Texas Home Preparation Checklist
Before extreme heat arrives, confirm that you have:
- Inspected the air-conditioning system
- Replaced or cleaned the air filter
- Reduced unnecessary heat entering through windows
- Identified the hottest rooms
- Prepared water and shelf-stable food
- Charged phones and power banks
- Saved the correct outage number
- Enabled emergency notifications
- Identified at least one cooling destination
- Planned for medically vulnerable household members
- Reviewed medication storage requirements
- Tested smoke and carbon monoxide alarms
- Prepared flashlights and spare batteries
- Reviewed generator safety
- Included pets in the emergency plan
- Learned how gates and garage doors work without power
- Reviewed ERCOT and local emergency-alert options
Effective Texas home preparation combines property maintenance with a realistic household safety plan. Cooling improvements and emergency supplies may help residents remain comfortable temporarily, but every household should also recognize when staying home is no longer safe.
Prepare transportation, identify an accessible cooling location and follow instructions from local emergency authorities during dangerous conditions.
Note: This article provides general information only and does not constitute medical, electrical, HVAC, legal or emergency-management advice. Heat risks, building requirements, utility procedures and individual health needs can vary. Consult appropriately qualified healthcare, electrical, HVAC or emergency-planning professionals for advice about your particular situation. Call 911 if someone may be experiencing heat stroke, carbon monoxide poisoning or another life-threatening emergency.