Phone answered 24/7 · San Antonio, TX and nearby communities

Call 24/7: (210) 761-3044
Bexar County Dry-Out ProsWater Damage Help · San Antonio, TX

How Can I Prevent Water Damage During Summer?

Last updated October 20, 2026

Call Now (210) 761-3044

The short answer

Maintain Your Home's Exterior

Summer storms can overwhelm a home's drainage. Check your roof for missing or damaged shingles and ensure gutters are firmly attached and clear of debris. This helps direct rainwater away from your foundation. Clean downspouts should extend at least five feet from your house to prevent basement or crawlspace flooding during heavy downpours.

Inspect your home's siding and exterior walls for cracks or gaps. Seal any openings with appropriate caulk to keep driving rain from seeping inside. Pay close attention to areas around windows and doors, as these are common leak points. Proper exterior maintenance is a key defense against water intrusion from summer weather.

Service Your Air Conditioning System

Your air conditioner's condensate drain line removes moisture collected from indoor air. This line can become clogged with algae or mold, causing water to back up and overflow. A simple annual cleaning with a vinegar solution helps keep the line clear and prevents leaks near your indoor air handler.

Listen for unusual dripping sounds near your AC unit and check for water spots on walls or ceilings nearby. If the drain pan under the indoor unit is cracked or rusty, replace it promptly. Regular HVAC maintenance by a qualified professional can catch these issues before they lead to significant water damage.

Check Appliances and Plumbing

Summer is a good time to inspect all water-using appliances. Look behind your refrigerator if it has an ice maker or water dispenser, as the supply line can develop slow leaks. Check the water heater for rust or moisture at the base and connections. Addressing small issues now prevents larger, costlier problems later.

Examine toilets for leaks by adding a few drops of food coloring to the tank. If color appears in the bowl without flushing, the flapper valve likely needs replacing. A running toilet can waste hundreds of gallons. These simple checks protect against water damage and help control your water bill.

  • Inspect washing machine supply hoses for bulges, cracks, or leaks.
  • Replace old rubber hoses with braided stainless steel models for durability.
  • Ensure your dishwasher door seals tightly and the drain hose is secure.
  • Check under sinks for any signs of moisture or slow drips.
  • Test your home's water pressure; excessive pressure can stress pipes.
  • Know the location of your main water shutoff valve for emergencies.

Manage Your Irrigation and Drainage

An improperly adjusted sprinkler system can direct water against your home's foundation or siding. Adjust sprinkler heads so they water your lawn, not your house. Run the system and walk the property to check for overspray or broken heads. This prevents constant moisture against your home, which can lead to seepage and mold.

Ensure the ground around your foundation slopes away from your house. Over time, soil can settle and create a slope toward your home, which directs rainwater to the foundation. Adding soil to create a positive grade is a simple fix. Clear any debris from window wells and ensure they have proper drainage covers.

Prepare for Heavy Rain and Storms

Clear debris from storm drains near your property to help prevent street flooding that can affect your home. If you have a sump pump, test it by pouring a bucket of water into the pit to ensure it activates and pumps water out. Consider a battery backup for your sump pump in case of power outages.

Move valuables and electronics off basement floors if possible. Check that all windows and doors close and seal tightly. After a storm, inspect your attic for any signs of roof leaks, such as wet insulation or water stains on the rafters. Quick action after discovering a leak limits the damage.

Talk to someone now

Phones are answered 24/7 for San Antonio and nearby communities.

Call Now (210) 761-3044

Frequently asked questions

What should I do if I find a leak during a storm?

First, stop the water source if it's safe to do so, like turning off the main water valve. Contain the water with towels and move furniture or rugs away. Contact local water damage pros to assess and dry the area properly to prevent mold. Do not attempt electrical repairs if water is near outlets.

How often should I clean my gutters in the summer?

Inspect and clean your gutters at least twice during the summer, especially after storms with heavy wind. Clogged gutters cause water to overflow and damage your roof, siding, and foundation. Regular cleaning is a simple, effective prevention step. If you are not comfortable on a ladder, hire a qualified service to do it safely.

Can a small leak under a sink cause major damage?

Yes, even a small, persistent drip can lead to significant problems over time. It can rot cabinetry, damage flooring, and promote mold growth inside walls. Mold can begin growing within 24 to 48 hours in damp conditions. Fixing minor leaks immediately protects your home's structure and air quality.

Call Now (210) 761-3044