Common Summer Plumbing Problems and How to Prevent Them

By Kevin Pannebecker | June 22, 2026

Summer in Saint Louis brings backyard barbecues, vacations, pool days, and extra household activity, but it also brings a surprising number of plumbing problems for homeowners. Increased water usage, heavy storms, extreme heat, and seasonal wear can all put extra stress on your home’s plumbing system during the warmer months.

At UPKEEP Home Warranty + Maintenance, we help homeowners throughout the Saint Louis, Saint Charles, and Saint Peters areas stay ahead of costly home repairs with proactive maintenance and reliable home warranty coverage. Many major plumbing emergencies actually begin as small issues that could have been prevented with routine inspections and maintenance.

Here are some of the most common summer plumbing problems homeowners face, and what you can do to help prevent them.

We Find That Plumbing Problems Increase In Summer

Many homeowners don’t realize that summer creates unique challenges for plumbing systems. Kids are out of school, guests visit more often, water usage increases, sprinklers and outdoor houses run regularly, heavy storms strain our drainage systems, and the Saint Louis heat and humidity affects our pipes and appliances. All of this extra demand can expose existing weaknesses in our plumbing systems. (And if you do need expert plumbers, we highly recommend our local partners at Mister Fix-It.)

1. Clogged Garbage Disposals

Summer cookouts and family gatherings often lead to overloaded garbage disposals. Some of the worst culprits are corn husks, watermelon rinds, celery, grease and cooking oils, fruit pits, rice, and pasta.

Many homeowners accidentally treat garbage disposals like trash cans, but certain foods can jam the blades or clog drain lines.

Prevention Tips

  • Avoid pouring down grease and fibrous foods
  • Run cold water while using the disposal
  • Cut food into smaller pieces and never overload the disposal
  • Run ice through your garbage disposal once in a while for blade cleaning

2. Sewer Line Backups

Heavy summer rainstorms can overwhelm sewer systems and expose existing sewer line issues. Tree roots are also especially active during warmer months and can invade underground sewer lines searching for moisture. We should all be watching for slow drains, gurgling toilets, sewage odors, frequent drain clogs, and water backing up into tubs or floor drains.

Prevention Tips

  • Avoid flushing wipes or hygiene products
  • Schedule regular drain inspections
  • Be cautious about planting trees near sewer lines
  • Address slow drains before they worsen
  • Install a backwater valve if recommended

3. Washing Machine Hose Failures

Summer often means more laundry from vacations, outdoor activities, sports, and pool use. And unfortunately, washing machine hoses that crack, bulge, or burst are one of the most common causes of household water damage. A burst hose can release gallons of water in minutes.

Prevention Tips

  • Inspect hoses regularly for wear
  • Replace rubber hoses every few years
  • Upgrade to braided stainless steel hoses
  • Avoid overloading the washing machine
  • Check for leaks behind the appliance

4. Sprinkler System Leaks

Many homeowners increase outdoor water usage during summer without realizing their irrigation systems may already have leaks. Even small irrigation leaks can waste significant amounts of water over time. Pay attention to soggy patches in the yard, weak water pressure, uneven watering, unusually high water bills, and sprinkler heads that sputter or spray unevenly.

Prevention Tips

  • Inspect sprinkler heads monthly
  • Adjust watering schedules during rainy periods
  • Check for underground leaks
  • Replace damaged sprinkler heads promptly
  • Monitor your water bill for sudden increases

5. Clogged Toilets

With children home for summer break and increased household activity, toilets often experience heavier use during summer months. Frequent clogs may signal a deeper plumbing issue that should be professionally inspected.

Prevention Tips

  • Only flush toilet paper
  • Keep trash bins in bathrooms
  • Teach children proper toilet use
  • Address slow flushing early
  • Avoid chemical drain cleaners when possible

6. Water Heater Problems

Water heaters work year-round, but summer humidity and increased household activity can still create issues. You may be experiencing inconsistent hot water, strange noises, rust-colored water, water pooling near the tank, or rising utility bills. Sediment buildup inside the tank can significantly reduce efficiency and shorten the system’s lifespan, so preventative care (like the kind UPKEEP warranty customers get four times a year) can drastically extend the life of your water heater and reduce unexpected breakdowns.

Prevention Tips

  • Flush the water heater annually
  • Inspect for corrosion or leaks
  • Lower the temperature setting slightly in summer
  • Schedule routine maintenance inspections

7. Basement Moisture and Flooding

Summer storms in Missouri can quickly overwhelm drainage systems and lead to basement flooding or moisture problems. Even small amounts of water can create mold growth, wood rot, foundation damage, musty odors, and damaged items.

Prevention Tips

  • Clean gutters regularly
  • Extend downspouts away from the home
  • Test sump pumps before storm season
  • Seal foundation cracks
  • Ensure proper yard grading

The Importance of Preventative Home Maintenance

One of the biggest mistakes homeowners make is waiting until something breaks before taking action. Routine maintenance makes all the difference.

At UPKEEP, preventative maintenance is a major part of how we help homeowners avoid expensive (and sometimes dangerous) surprises.

Unlike many traditional home warranty companies, UPKEEP includes four routine maintenance visits each year to help identify issues before they become major problems. And because we handle the maintenance for your appliances and home systems ourselves, your claims are never denied for lack of maintenance.

How a Home Warranty Can Help Protect Your Budget

Unexpected plumbing repairs can quickly become expensive, especially when water damage is involved. A quality home warranty can help provide peace of mind by helping cover many major home systems and appliance repairs when breakdowns occur.

From plumbing systems to water heaters and more, having protection in place makes homeownership far less stressful.

Trust UPKEEP to Help Protect Your Home This Summer

Summer should be spent enjoying your home, not dealing with plumbing emergencies.

At UPKEEP, we help homeowners throughout Saint Louis and surrounding Missouri communities stay ahead of costly repairs with proactive maintenance, dependable service, and comprehensive home warranty protection.

Contact UPKEEP today to learn more about our home warranty plans and preventative maintenance services.

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