Tips And TricksUpdated July 18, 2026
Basement flooding is a real threat for homes in Harwood Heights, especially with our flat terrain, high water table, and heavy clay soil. Even without major rivers running through the village, a quick summer storm can leave water pooling around foundations, putting older basements and crawlspaces at risk. Most of the mid-century and post-war homes in our area rely on sump pumps to keep lower levels dry. Unfortunately, a sump pump that fails to run at the wrong moment can mean ruined floors, damaged appliances, and plenty of stress. Testing your pump before our typical heavy summer thunderstorms is one of the best ways to keep your basement dry and avoid emergencies.
Why Sump Pump Checks Matter in Harwood Heights
Our soil doesn't drain quickly, and the water table is often higher than many realize. That means sump pits fill during storms, even without direct rainfall leaks. Our team has seen how quickly things can go wrong when a pump fails: water finds the lowest spot and seeps up through floor cracks or around the edges. That's not just a problem in older homes, newer construction isn't immune, especially with power outages and electrical surges common during storms in the Chicago area. With so many homes built in the 1950s and 60s, original sump systems may have aging float switches, overworked motors, or clogged discharge lines. Taking a little time to test the system before storm season gives you a real shot at preventing a wet, messy cleanup later on.
How to Test Your Sump Pump the Right Way
Testing your sump pump isn't complicated, but it does help to follow some basic steps. Here's an approach we recommend for most Harwood Heights homes:
- Check the power: Make sure the pump is plugged into a dedicated GFCI outlet, and the power cord has no visible damage.
- Inspect the pit: Remove the lid and shine a flashlight inside. Look for debris or silt buildup that could block the pump intake.
- Fill the pit: Pour at least 5 gallons of water slowly into the sump pit, enough to lift the float or trigger the pressure sensor.
- Watch the pump: The pump should kick on and begin removing water. Listen for unusual noises and look for vibration that might mean a loose fitting.
- Watch the discharge: Check outside where the discharge line exits. Make sure water is flowing out and away from your foundation, with no leaks or blockages.
- Test the backup: If you have a battery or water-powered backup pump, test it as you would the primary. For battery backups, unplug the main pump first before filling the pit again.
Clear any debris from the pit and discharge line, you'd be surprised how quickly silt or small stones can clog a pump. If you hear grinding, rattling, or constant cycling, or if the pump struggles to keep up, that's a good sign it's time to have it looked at.
Warning Signs Your Sump Pump Needs Service
A quick routine check can catch trouble before storms arrive, but there are flags you shouldn't ignore:
- Excessive vibration, rattling, or grinding noises
- Pump fails to run when water rises past the float
- Short cycling (pump turns on and off rapidly)
- Visible rust or corrosion on the pump, float arm, or discharge pipe
- Standing water in the pit after a rainstorm
If your sump pit fills and the pump doesn't clear it out, or if you see signs of seepage around the foundation, call for help. Our crew handles sump pump repair and replacement for all types of local homes. We also see many issues with old check valves stuck open or closed, making it much easier for water to find its way back in after a pump cycle.
Backup Power and Battery Systems
Power outages are common during storms in Cook County. If your pump plugs into a standard wall outlet, it won't run when the lights go out. A battery backup is one of the best defenses for local homes, especially with the flat terrain we have. There are standalone battery units, as well as water-powered backups in some setups. Testing your backup system is just as important as testing the main pump. Make sure the backup float moves freely and the alarm works. If you notice weak battery strength, a replacement battery unit might be needed.
Don't Overlook Related Plumbing Risks
Sump pump checks go hand in hand with other basement plumbing maintenance. Heavy storms often reveal slow or partially blocked drains. If your floor drains or sewer lines back up when it rains, or if you see water around the base of the sump pit, it could point to a bigger problem. Our team can inspect for issues like clay tile sewer line intrusion or drain blockages. We also provide leak detection and repair if you suspect water is penetrating through cracks or pipe joints.
Professional Help for Older Pumps and Repiping
If your sump pump is over 7-10 years old, or you're unsure of the last time it was replaced, it may be due for an upgrade. Many older Harwood Heights homes still have cast iron or galvanized pipework connected to the pump system. Over time, those lines corrode and slow drainage. We can advise if repiping parts of the system or updating sump hardware is needed for better basement protection.
Need help testing, repairing, or replacing your sump pump before the next big storm? Our local crew is ready. Call us at 708-773-7616 for reliable service in Harwood Heights and answers to any questions about keeping your basement dry.