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The most common plumbing issues in Illinois homes are clogged drains, dripping faucets, running toilets, low water pressure, water heater trouble, hard water scale, frozen pipes and main sewer line backups. Most of them give you warning signs weeks before they become expensive. Catch them early and a simple plumbing repair in Edwardsville or nearby often costs far less than the damage they cause later.
Have a problem that cannot wait? Call Priority Plumbing Services at (618) 207-1647, 24/7.
Key Takeaways
- Small leaks add up fast. The EPA says household leaks can waste nearly 10,000 gallons of water a year in an average home.
- Illinois winters crack pipes. Pipes in crawl spaces, garages and outside walls are the first to freeze.
- Hard water shortens equipment life. Scale builds up in water heaters, faucets and tankless units.
- Several slow drains at once is a main line problem, not a sink problem.
- Your water bill is a free leak detector. A jump with no change in use usually means water is escaping somewhere.
The 9 Most Common Plumbing Issues We See
Every home is different, but the same handful of problems show up across Pocahontas, Highland, Greenville and the rest of the Metro East. Here they are, with the signs to watch for and what usually causes them.
| Problem | Early warning sign | Usual cause | DIY or plumber? |
|---|---|---|---|
| Clogged drain | Slow draining, gurgling | Hair, grease, soap scum | DIY first, plumber if it returns |
| Dripping faucet | Steady drip, water spots | Worn washer or cartridge | Often DIY |
| Running toilet | Tank refills on its own | Worn flapper or fill valve | Often DIY |
| Low water pressure | Weak flow at one or all taps | Scale, a closed valve, or a leak | Depends on the cause |
| Water heater trouble | Lukewarm water, popping, rust | Sediment, failed element or burner | Plumber |
| Hidden leak | Higher bill, damp spots, mold smell | Failed joint or corroded pipe | Plumber |
| Frozen pipe | No water from one tap in winter | Pipe in an unheated space | Plumber if it cracked |
| Hard water scale | White crust on fixtures | High minerals in the water | Plumber for a softener |
| Sewer line backup | Multiple slow drains, floor drain overflow | Roots, grease, a broken pipe | Plumber |
Drain and Sewer Problems
1. Clogged and slow drains
Kitchen sinks clog with grease and food. Bathroom sinks and tubs clog with hair and soap. A slow drain is the early warning. A plunger or a small hand snake clears most single-fixture clogs. If the same drain clogs every few weeks, something deeper is catching debris.
2. Main sewer line trouble
When toilets gurgle, several drains slow down at once, or the basement floor drain backs up, the problem is the main line. Many older Illinois homes still have clay or cast iron sewer pipe. Roots get into the joints, and the pipe can sag or crack as the ground freezes and thaws. Do not wait on these signs. A main line clog can turn into sewage on the basement floor with very little warning.
Leaks, Drips and Running Toilets
3. Dripping faucets
A dripping faucet seems minor. It is also one of the easiest leaks to ignore for years. Most drips come from a worn rubber washer, O-ring or cartridge inside the faucet. Replacing those parts is often a quick fix.
4. Running toilets
If your toilet refills on its own or keeps running after a flush, the flapper or fill valve is usually worn. A simple test: put a few drops of food coloring in the tank and wait 15 minutes without flushing. If color shows up in the bowl, the flapper is leaking.
5. Hidden leaks
Hidden leaks behind walls, under floors and in slabs are the costly ones. The U.S. EPA reports that household leaks can waste nearly 10,000 gallons of water a year in an average home. Watch for:
- A water bill that jumps with no change in how you use water
- Warm spots on the floor, which can mean a hot water slab leak
- Bubbling paint, stains on ceilings, or a musty smell
- The water meter dial moving when every tap is off
If you see any of these, our leak detection and repair service can find the source with electronic tools before opening walls.
Water Heater and Water Quality Problems
6. Water heater trouble
Most tank water heaters last about 10 to 12 years. Before they fail, they usually warn you. Look for lukewarm water, hot water that runs out faster than it used to, popping or rumbling sounds, rusty water, or moisture around the base. Sediment settles at the bottom of the tank and makes the burner or element work harder. Flushing the tank once a year slows that buildup. Our water heater repair team can tell you whether a repair or a replacement makes more sense.
7. Hard water scale and low pressure
Much of Illinois has hard water, especially homes on private wells. The U.S. Geological Survey classifies water hardness levels as soft below 60 mg/L, moderately hard from 61 to 120 mg/L, hard from 121 to 180 mg/L, and very hard above 180 mg/L. The higher the number, the faster scale builds up.
Signs of hard water include:
- White crust on faucets and shower heads
- Spots on dishes and glassware
- Soap that does not lather well
- Low pressure at aerators and shower heads
- A water heater that gets noisy over time
Cleaning aerators fixes some pressure problems. A water softener or filtration system treats the cause.
Illinois Winter Problems
8. Frozen and burst pipes
Illinois winters bring long stretches below freezing. Water expands as it freezes, and that pressure can split copper, PEX and galvanized pipe. The pipes most at risk run through crawl spaces, garages, attics, and outside walls. Outdoor spigots without frost-free valves are another common trouble spot.
Simple steps prevent most freezes:
- Disconnect garden hoses before the first hard freeze.
- Shut off and drain outdoor faucets that are not frost-free.
- Insulate exposed pipes in crawl spaces and garages.
- Open cabinet doors under sinks on outside walls during cold snaps.
- Let a faucet drip slowly on the coldest nights.
- Keep the heat at 55 degrees or higher if you travel.
If a pipe freezes, do not use an open flame to thaw it. Call for frozen pipe repair service before it splits.
9. Sump pump failures
Spring thaws and heavy rain test every sump pump in the region. Pumps fail from age, a stuck float switch, or a power outage. Pour a bucket of water into the pit once a season to make sure the pump turns on and empties it.
How to Spot Plumbing Problems Early
You do not need tools to catch most problems. Do a 10-minute walk-through every season:
- Check your water bill. Compare it with the same month last year.
- Read the water meter with all taps off. Wait an hour. If it moved, something is leaking.
- Look under every sink for drips, stains or soft cabinet floors.
- Check around toilets for wobbling or water at the base.
- Look at the water heater for rust, moisture or a leaking relief valve.
- Run every drain and listen for gurgling.
- Test the sump pump before spring.
Found something you are not sure about? Call (618) 207-1647. We will tell you honestly if it is something you can fix yourself.
When to Call a Licensed Plumber
Some fixes are fine for a homeowner. Others need a licensed plumber because of safety, code, or the risk of making it worse. Call a pro for:
- Any gas line or gas water heater work
- Sewage in the basement or several drains backing up at once
- Hidden leaks behind walls or under slabs
- Frozen pipes that may have cracked
- Water heater replacement
In Illinois, plumbing work must be done by a licensed plumber. You can verify a license through the Illinois plumbing license program run by the Illinois Department of Public Health. Kyle Gruner, owner of Priority Plumbing Services, is a Master Plumber with Illinois license 055-045366.
Common Plumbing Issues: Your Questions Answered
What is the most common plumbing repair?
Clogged drains are the most common plumbing repair in most homes. Kitchen sinks clog with grease and food, and bathroom drains clog with hair and soap. Running toilets and dripping faucets are close behind. All three are usually quick fixes when caught early.
What are the 10 most common plumbing problems homeowners face?
Clogged drains, dripping faucets, running toilets, low water pressure, water heater problems, hidden leaks, frozen pipes, hard water scale, sump pump failures, and main sewer line backups. Illinois homes see more frozen pipes and sump problems than homes in warmer states.
What is the average life expectancy of house plumbing pipes?
It depends on the material. Copper and PEX supply lines often last decades. Galvanized steel tends to corrode from the inside and narrow over time. Cast iron and clay sewer lines can last a long time but are prone to cracks and root intrusion as they age.
Does homeowners insurance cover replacing plumbing pipes?
Most policies cover sudden water damage, such as a pipe that bursts, but not the cost of replacing old or worn-out pipes. Sewer backup coverage is often a separate add-on. Ask your agent what your policy includes.
How do I know if a plumbing problem is an emergency?
Treat it as an emergency if water is flowing where it should not and you cannot stop it, if sewage is backing up, if you smell gas, or if you have no water in freezing weather. Shut off the main water valve and call a plumber.
What are the most common plumbing problems in older Illinois homes?
Slow drains, running toilets, dripping faucets, worn out water heaters and aging galvanized or cast iron pipes top the list. Older homes also see more tree root trouble in clay sewer lines.
What are the early signs of plumbing problems?
Watch for gurgling drains, low water pressure, a jump in the water bill, damp spots on walls or ceilings and a sewer smell. These signs of plumbing problems usually show up well before a pipe fails.
Can I fix common plumbing issues myself?
Simple jobs like a running toilet flapper or a clogged sink trap are fine for most homeowners. Leave gas lines, water heaters, sewer lines and anything inside walls to a licensed plumber, since most common plumbing issues get worse with a wrong fix.
Book a Plumbing Check Before Small Problems Grow
If you spotted one of these warning signs, now is the cheapest time to fix it. Call Priority Plumbing Services at (618) 207-1647 and tell us what you are seeing. We take a repair-first approach, discuss pricing before work begins, and back every job with a 1-year warranty and our 100% satisfaction guarantee.
We answer 24/7 and serve Pocahontas, Highland, Greenville, Edwardsville, Glen Carbon, Maryville, Troy and nearby Metro East towns. You can also contact our plumbing team online.
