Houston Home Protection & Hurricane Preparedness Center

Houston homeowners face a combination of hazards that can arrive together: Intense rainfall, flash flooding, rising bayous, storm surge near the coast, wind-driven debris, lightning, utility interruptions, extreme heat, humidity, and delayed access to repairs. This Authority Hub brings trusted public-safety guidance and practical home-system preparation into one locally focused resource.

Use it to prepare your plumbing, air-conditioning, electrical, surge-protection, and backup-power systems; document your property; make safer decisions during a storm; and understand what should be inspected before damaged equipment is restarted.

Greater Houston’s exposure is distinctive because tropical weather does not need to deliver the highest wind category to create severe household disruption. A slow-moving tropical storm, a rain-producing hurricane, a stalled thunderstorm complex, or a surge event can overwhelm localized drainage, flood roads, interrupt utilities, contaminate building materials, and leave homes without cooling during dangerous heat and humidity. Harris County contains 23 major watersheds draining toward major creeks, bayous, the San Jacinto system, and ultimately Galveston Bay. Each watershed has its own flood behavior, which means two homes only a few miles apart can experience very different conditions during the same storm.[1]

The Atlantic hurricane season officially runs from June 1 through November 30, although storms can occur outside those dates. Historically, activity is greatest from mid-August through mid-October, with a climatological peak around September 10.[2] Preparation should therefore be an annual home-maintenance discipline rather than a last-minute reaction to a forecast cone.

This center helps homeowners: identify system vulnerabilities; locate and label shutoffs; reduce preventable water, electrical, and HVAC damage; plan safe backup power; separate emergency-management guidance from contractor guidance; document pre-storm condition for insurance purposes; and know when damaged equipment must remain off until inspected.

Abacus Plumbing, Air Conditioning & Electrical publishes this resource to connect official emergency guidance with the practical realities of home plumbing, cooling, electrical, surge-protection, generator, and storm-recovery systems in Greater Houston. Abacus is not a substitute for government emergency instructions. During an active emergency, follow evacuation orders, boil-water notices, utility directions, and instructions from the National Weather Service, the National Hurricane Center, local emergency management, fire departments, and law enforcement.

Storm advice usually arrives in pieces. One list covers food and medications. Another covers evacuation. Another covers insurance. Generators, electrical safety, plumbing, and air conditioning each get their own page somewhere else.

A homeowner may know to store water but not know where the main shutoff is. A family may own a generator and have no safe way to connect it. A flooded home may get utility power back while its panel, receptacles, condenser, or water heater are still unsafe to energize.

We built this page to close those gaps. It brings official emergency guidance together with the home systems we work on every day. The purpose is education and risk reduction, not fear-based selling.

We have served Houston homeowners since 2003. Plumbing, air conditioning, and electrical work all happen under one roof here. That combination is why we can speak to how these systems fail together during a storm, and what has to be checked before they run again.

• Main water shutoff: Locate the whole-home shutoff before hurricane season. Confirm that it is accessible, labeled, and operable without excessive force. Show responsible household members how to close it. Do not wait for active flooding to search for the valve. Shutting off water is appropriate when a plumbing line has failed or when instructed by qualified authorities. It does not protect a house from external floodwater, and turning a long-idle valve can reveal an existing defect.
• Sewer backups: Heavy rainfall can place extraordinary pressure on public and private drainage systems. Signs of a developing backup include gurgling, slow drains, sewage odors, and water rising in low fixtures. Stop using fixtures if a backup is occurring and avoid contact with contaminated water. A backwater valve may be appropriate for some properties, but suitability depends on plumbing configuration, code requirements, maintenance access, and local conditions. It requires professional evaluation.
• Drainage: Keep accessible yard drains, area drains, gutters, downspout outlets, and surface flow paths free of leaves and debris. Do not open municipal structures or enter drainage channels. Never redirect water in a way that harms neighboring property or violates local rules.
• Water heaters: Photograph the water heater, data plate, connections, pan, drain, venting, and surrounding area. Know whether the unit is gas or electric and how it is isolated. A submerged water heater, burner, gas valve, electrical compartment, insulation, or control should be evaluated before reuse.
• Sump pumps where applicable: Some Houston-area properties have sump, ejector, lift, or specialty drainage pumps. Test them under normal conditions, clean accessible inlets, verify alarms, and understand backup-power requirements. Never enter a wet pit or service energized equipment.
• Exterior plumbing: Secure loose hoses and inspect hose bibbs, irrigation backflow devices, pool fill lines, exposed piping, tankless water heaters, and outdoor gas appliances. Follow manufacturer instructions for any protective cover. Never block required combustion air or exhaust.
• Leak detection: Whole-home leak detection and automatic shutoff systems can reduce damage from pressurized plumbing leaks, but they do not prevent external flooding or sewer backup. Confirm sensors, batteries, Wi-Fi dependencies, and valve operation before storm season.
• Water contamination: Follow official utility and health-department notices. Do not assume tap water is unsafe without an advisory, and do not assume it is safe when authorities have issued one. The EPA recommends checking with the local utility or health department; boil-water instructions vary by notice.[8]
• Post-flood inspection: Do not use fixtures that discharge into a blocked or backed-up system. Photograph damage before cleanup when safe. A plumber may need to inspect water heaters, gas piping, fixtures, drains, backflow devices, exposed piping, and contaminated components. Fort Bend County homeowners can request inspection through the Abacus Sugar Land plumbing team.

• Label the main shutoff and verify safe access.
• Schedule routine drain, water-heater, and visible-piping inspections before peak storm season—not when a storm is hours away.
• Photograph equipment labels and installation condition for insurance documentation.
• Ask whether the property’s history or plumbing configuration warrants a sewer-backup discussion.
• Keep Abacus contact information with insurance, utility, and emergency numbers.
• After flooding, do not authorize restart or repair based only on appearance; identify all submerged or contaminated components.

• Outdoor condenser protection: Trim loose vegetation and remove nearby objects that can become debris. Maintain manufacturer-required clearances. Do not wrap an operating condenser or use an improvised cover that blocks airflow. If a manufacturer- approved storm cover is used while the system is off, remove it before restart.
• Flood exposure: The elevation of the condenser, heat pump, air handler, furnace, platform, disconnect, and ductwork affects vulnerability. Elevation changes may require engineering, code review, permitting, manufacturer compliance, and refrigerant/electrical work.
• Debris and physical movement: After a storm, look from a safe distance for cabinet damage, a shifted pad, bent fan guards, damaged lines, loose panels, or debris. Do not reach inside or attempt to straighten equipment while energized.
• Electrical control-board damage: Modern HVAC systems rely on control boards, variable-speed drives, sensors, communicating thermostats, and low-voltage circuits. Surge damage may be immediate or intermittent. HVAC surge protection should be coordinated with whole-home electrical protection rather than treated as a substitute for it.
• Condensate drains: A clogged condensate drain can cause water damage even without flooding. Annual service should include drain inspection and any manufacturer-recommended cleaning. Confirm overflow protection where applicable.
• Filters and humidity: Keep correct replacement filters available. During an extended outage, indoor humidity can rise quickly. Once safe cooling is restored, avoid extreme thermostat settings; focus on steady operation and moisture removal.
• Safe restart procedures: Do not restart equipment that was submerged, struck, displaced, or exposed to contaminated water. The EPA advises not turning on an HVAC system until the home has been cleaned, dried, and needed repairs and remediation have been addressed.[7]
• Post-storm inspections: Inspection may include electrical components, refrigerant lines, coils, motors, controls, drain systems, ductwork, air handlers, furnaces, heat pumps, disconnects, and evidence of water or debris intrusion.

• Complete maintenance before the peak season and correct known drain, electrical, airflow, or refrigerant issues.
• Document model and serial numbers and photograph all equipment locations.
• Keep vegetation and loose objects away from the condenser while preserving required airflow.
• Turn equipment off only when directed by the manufacturer, utility, emergency officials, or a qualified professional based on actual conditions.
• Do not restart a flooded or physically damaged system.
• After an outage, watch for abnormal noise, odor, tripped breakers, weak cooling, icing, or water leakage and shut the system down if unsafe symptoms appear.

• Electrical panels: Keep the panel accessible and accurately labeled. Do not store combustible materials against it. Homeowners should know the location of the main disconnect, but should not stand in water or touch a wet panel. A flooded or corroded panel requires licensed evaluation.
• GFCIs: Test GFCI devices according to manufacturer instructions during normal conditions. A device that will not test or reset, repeatedly trips, or has been submerged should be evaluated or replaced as appropriate.
• Lightning: No device can guarantee protection from a direct lightning strike. Layered protection may include a properly installed whole-home surge protective device, point-of-use protection, grounding and bonding, and disconnection of sensitive electronics when practical and safe.
• Power-restoration surges: Voltage disturbances can occur when service is restored or as damaged systems stabilize. Whole-home surge protection can reduce exposure to certain transient voltages, but it has finite ratings and does not correct all power- quality problems.
• Whole-home surge protection: A qualified electrician should select and install equipment appropriate to the panel, service, available breaker space, code, and manufacturer requirements. Discuss protection for major HVAC equipment, generators, communications, and sensitive electronics.
• Outdoor electrical equipment: Inspect weatherproof covers, receptacles, lighting, pool equipment, landscape transformers, disconnects, and exposed conduit. Do not use damaged or wet devices.
• Flooded electrical systems: Never energize submerged equipment or enter standing water near electrical sources. CDC advises turning power off at the main breaker only if it can be done safely and not using wet electrical devices.[9] Licensed Sugar Land electricians evaluate flooded panels, circuits, and outdoor equipment.
• Smoke and carbon-monoxide alarms: Test alarms, replace batteries as required, and follow replacement-age guidance. Use battery-powered or battery- backup CO alarms whenever fuel-burning backup equipment is operating.

• Schedule panel, grounding, bonding, GFCI, outdoor-equipment, and surge-protection evaluation before hurricane season.
• Label circuits and photograph the panel directory and service equipment.
• Use only listed equipment and qualified installation.
• Do not use a generator “suicide cord,” improvised backfeed, or any connection that can energize utility lines.
• After flooding, keep affected circuits off until evaluated.
• Treat repeated tripping, burning odor, buzzing, visible arcing, hot devices, or discoloration as urgent warning signs.

• Portable generators: Portable units can operate selected loads through suitable cords or an approved transfer arrangement. They must remain outdoors, dry, stable, and far from openings. CDC and EPA advise placement at least 20 feet from the building, windows, doors, and vents, with exhaust directed away.[7][10]
• Standby generators: Permanently installed generators can start automatically and supply selected circuits or a larger portion of the home through transfer equipment. Design must account for fuel, placement, clearances, flood exposure, load calculation, permitting, electrical work, and manufacturer requirements.
• Battery backup: Battery systems can provide silent, indoor-safe electricity without combustion exhaust. Runtime depends on stored energy, load, inverter capacity, temperature, battery condition, and whether solar or grid charging is available.
• Transfer switches and interlocks: A listed transfer switch or approved interlock prevents dangerous backfeeding and controls which source supplies the home. Selection and installation should be performed by qualified professionals in compliance with code and utility requirements.
• Fuel planning: Store only approved quantities and containers, follow local fire rules, stabilize fuel when appropriate, rotate stock, and never refuel hot equipment. Natural-gas and propane systems have different continuity and capacity considerations.
• Carbon-monoxide safety: CO is odorless and invisible. Never operate a generator in a home, garage, carport, screened enclosure, or near openings. Use battery-powered or battery-backup CO alarms. If an alarm sounds, leave immediately and call 911.[10]
• Equipment sizing: Add the running and starting requirements of essential loads. Air conditioners, pumps, refrigerators, and motors may draw higher startup current. Oversizing can waste money; undersizing can trip protection, overheat equipment, or fail to start critical loads.
• Maintenance: Exercise and service equipment according to the manufacturer. Check oil, battery, coolant where applicable, fuel, filters, cords, receptacles, alarms, and transfer equipment. Conduct tests before storm season.
• Professional installation: Electrical and fuel connections create life-safety risks. Use qualified, properly licensed professionals and obtain required permits. Never encourage or permit unsafe generator connections.

Storm damage is not always visible. Equipment can look fine and still be unsafe to run. Below is what our plumbers, HVAC technicians, and electricians examine when a home has been through flooding, high wind, or a long outage.

• Outdoor air conditioning equipment: We look for cabinet damage, a shifted pad, bent fan guards, and debris packed into the coil. We check the disconnect, the electrical whip, and the refrigerant lines. Equipment that sat in water needs its controls and motors evaluated before it runs again.
• Electrical panels and devices: We check panels, disconnects, receptacles, and outdoor equipment for moisture and corrosion. We test GFCI devices. We look for scorching, buzzing, heat damage, and breakers that will not hold.
• Surge damage to controls and boards: Surge damage is not always obvious right away. A system may run but behave strangely. We check control boards, thermostats, sensors, and low-voltage circuits when a home has lost and regained power.
• Water heaters: Floodwater reaches burners, gas valves, insulation, and electrical compartments. We inspect the unit, its connections, the venting, and the pan and drain. A submerged water heater is evaluated before it goes back into service.
• Drains and sewer lines: We check for slow drains, gurgling, and odors that point to a backup. Camera inspection shows blockages, root intrusion, and line damage that heavy rain can expose or worsen.
• Condensate and drainage: A clogged condensate drain causes water damage on its own. We clear and test drain lines, confirm overflow protection, and check yard and area drains around outdoor equipment.
• Ductwork and indoor humidity: Long outages let indoor humidity climb. We inspect ductwork, air handlers, and insulation for moisture and contamination, especially where floodwater reached the system.
• Generators and transfer equipment: We check placement, clearances, fuel supply, cords, and transfer switches or interlocks. We confirm the connection method cannot backfeed utility lines.

We have served Houston homeowners since 2003. Our plumbers, HVAC technicians, and electricians work under one roof. That matters after a storm, when a single home may need a drain cleared, a condenser evaluated, and a panel inspected at the same time.

Our team of Plumbers, Drain & Sewer Specialist, HVAC Technicians and Electricians in Houston, TX serves Aldine, Atascocita, Conroe, Humble, Jersey Village, Kingwood, Klein, Magnolia, Pinehurst, Porter, Spring, The Woodlands, Tomball, and surrounding communities.

We answer calls 24 hours a day. After a major storm, we prioritize urgent requests based on technician availability.

• Annual preparation: Review insurance and flood coverage; update inventory; identify evacuation and flood zones; test alarms; service HVAC and generator equipment; inspect plumbing and electrical systems; verify shutoffs; trim trees responsibly; update family and pet plans.
• 30 days before hurricane season: Complete deferred repairs, buy filters and batteries, inspect extension cords, confirm generator fuel and transfer equipment, clean accessible drains and gutters, scan documents, and download local alert apps.
• When a storm enters the Gulf: Increase forecast monitoring; refill prescriptions; charge batteries; fuel vehicles; secure appointments only if time and conditions allow; confirm shelters and routes; avoid panic buying.
• 72 hours before potential impact: Secure outdoor items; finish laundry and charging; test backup power under safe normal conditions; cool the home; freeze containers if appropriate; photograph property; verify shutoffs and contact lists.
• 24 hours before impact: Follow evacuation orders. Stop nonessential outdoor work. Move vehicles and valuables when safe. Protect documents. Set refrigerators colder, avoid unnecessary plumbing use if local systems are strained, and place flashlights where accessible.
• During the storm: Remain in the designated safe area. Monitor official alerts. Do not enter attics during rising water unless it is part of an emergency escape plan and there is a safe exit. Do not go outside to inspect equipment.
• Immediately after the storm: Wait for official clearance. Watch for lines, gas odor, structural damage, floodwater, wildlife, and unstable trees. Photograph damage. Do not energize wet equipment or restart flooded HVAC.
• One week after the storm: Continue drying and remediation, track expenses, obtain qualified inspections, replace contaminated materials as directed, review system performance, and update the preparedness plan with lessons learned.

• Do not enter floodwater unnecessarily as it may conceal current, debris, sewage, chemicals, holes, or displaced animals.
• Do not energize submerged or wet equipment.
• Do not operate generators indoors, in garages, carports, screened areas, or near doors, windows, or vents.
• Do not connect a generator to household wiring without approved transfer equipment.
• Do not make improvised electrical repairs.
• Do not restart a flooded HVAC system.
• Do not use a water heater, furnace, appliance, or control that has been submerged until appropriately evaluated.
• Do not assume tap water is safe after an official advisory—or unsafe without checking official notices.
• Do not mix bleach with ammonia or other cleaners.
• Do not let children, older adults, people with respiratory disease, or immunocompromised individuals participate in hazardous mold cleanup.

• MYTH: Only major hurricanes are dangerous
  FACT: Lower-category hurricanes and tropical storms can produce catastrophic flooding, tornadoes, surge, and long outages.
• MYTH: The forecast cone shows the full hazard area
  FACT: The cone depicts likely center-track uncertainty, not the full extent of wind, rain, surge, or tornadoes.
• MYTH: A home outside the mapped floodplain cannot flood
  FACT: Flood maps describe modeled risk; drainage failures, street ponding, rainfall intensity, and changing conditions can affect properties outside mapped high-risk zones.
• MYTH: If the power is back, every appliance is safe to use
  FACT: Submerged, wet, shifted, corroded, or surge-damaged equipment may remain unsafe after utility service returns.
• MYTH: Opening windows equalizes hurricane pressure
  FACT: Opening windows allows wind and water inside and can worsen damage. Follow building and emergency guidance.
• MYTH: A generator is safe in an open garage
  FACT: CO can accumulate and enter the home. Operate generators outdoors at least 20 feet from openings.
• MYTH: Any extension cord can power appliances from a generator
  FACT: Cords must be listed, grounded, undamaged, outdoor-rated where required, and sized for the load.
• MYTH: Whole-home surge protection prevents all lightning damage
  FACT: It reduces certain transient-voltage exposure but cannot guarantee protection from every event, especially direct strikes.
• MYTH: An HVAC unit that looks dry can be restarted
  FACT: Water or contamination may be inside controls, motors, insulation, ducts, or electrical components.
• MYTH: Bleach solves every mold problem
  FACT: Moisture control, material removal, drying, cleaning method, PPE, and professional remediation needs depend on the material and extent.
• MYTH: Boiling water is always required after a hurricane
  FACT: Follow official utility and health-department notices. A boil-water advisory is specific guidance, not an automatic rule after every storm.
• MYTH: Turning off the main water valve prevents flood damage
  FACT: It can limit pressurized plumbing leaks but does not stop external floodwater, storm surge, or sewer backup.
• MYTH: A portable generator can run central air if the wattage looks close
  FACT: Motor starting requirements, voltage, transfer equipment, and load management must be evaluated.
• MYTH: Flood cleanup can wait several day
  FACT: The EPA recommends drying wet areas and items within 24 to 48 hours when safely possible to reduce mold growth.[7]
• MYTH: Road water is safe if other vehicles cross it
  FACT: Depth, current, road damage, and vehicle capability are unknown. Turn around; do not drown.
• MYTH: Storm preparation begins when a warning is issued
  FACT: Maintenance, insurance review, generator testing, and documentation should be completed well before a storm threatens.

A readiness evaluation is intended for advance planning and non-emergency maintenance. It cannot certify that a property is hurricane-proof, flood-proof, or outage-proof. The most useful time to schedule is well before a storm threatens Greater Houston.

• Plumbing inspection: Review accessible shutoffs, visible piping, drainage concerns, water heaters, leak detection, and relevant backup- prevention questions.
• HVAC maintenance: Inspect cooling performance, electrical condition, drains, filters, outdoor equipment, controls, and documented maintenance needs.
• Electrical safety review: Evaluate panel condition, labeling, GFCIs, outdoor equipment, grounding/bonding observations, alarms, and storm-related priorities.
• Whole-home surge protection: Discuss available protection layers for the service, panel, HVAC, generator, communications, and sensitive loads.
• Generator consultation: Identify essential loads, fuel options, transfer equipment, placement constraints, maintenance, permitting, and installation requirements. Water-heater inspection Review visible condition, type, location, pan/drain where applicable, connections, controls, venting, and flood exposure.
• Schedule your storm readiness evaluation: Prepare your plumbing, cooling, electrical, surge-protection, water-heater, and backup-power plan before severe weather is on the doorstep.

We answer calls 24 hours a day, seven days a week.

After a widespread storm, demand across Greater Houston can exceed what any single company can reach at once. We prioritize urgent requests based on technician availability and the severity of the problem. We will tell you honestly when we can get to you.

If you have a gas odor, a downed power line, rising water, or a medical emergency, call 911 or your utility first. Those situations are handled by emergency responders, not by a home services company.

1. Harris County Flood Control District: Harris County’s Watersheds and Find Your Watershed
2. National Hurricane Center: Tropical Cyclone Climatology and hurricane season dates
3. Harris County Flood Control District: Flood Warning System and Storm Center
4. National Hurricane Center and NWS Houston/Galveston: Hurricane Harvey discussions and event summary
5. National Hurricane Center: Hurricane Beryl advisories and Houston-area observations, July 8, 2024
6. National Hurricane Center: Beryl post-storm hazard advisory, July 8, 2024
7. U.S. Environmental Protection Agency: Flooded Home and flood/indoor-air guidance
8. U.S. Environmental Protection Agency: Flooding: drinking-water and mold guidance
9. Centers for Disease Control and Prevention: Safety after hurricanes and tropical storms
10. Centers for Disease Control and Prevention: Carbon monoxide and portable-generator safety
11. Harris County Flood Control District: Harris County flooding history
12. U.S. Environmental Protection Agency: Protecting children after hurricanes and floods
13. Ready.gov: Hurricanes
14. Texas Division of Emergency Management: Preparedness resources
15. City of Houston Office of Emergency Management
16. Harris County Office of Homeland Security &; Emergency Management