Leak Detection and Repair in Decatur
In a basement home, many leaks are easy to see if you look up at the joists. Others hide in walls, under slabs or in the line from the street. Here is how leaks are found and fixed.
The short version
Start with the water meter: if it moves with everything off, water is going somewhere. Then narrow it down: inside or outside, supply or drain.
- Typical asks: drips from joists, stains on ceilings, high water bills, wet spots in the yard
- Ask about: locating method, repair versus replacement
Leaks estimate request
About a minute. Send the details and expect a call back to talk the project through.
- First test
- Watch the meter with everything off
- Basement clue
- Look along exposed pipes and joists
- Outside clue
- A soggy line from the street to the house
- Old pipe
- Galvanized lines leak at threads and rust through
Is there a leak?
Turn off every fixture and appliance that uses water and watch the meter. If it moves, water is leaving the system. The EPA's WaterSense program estimates that about one home in ten has leaks wasting 90 gallons or more a day, mostly from worn toilet flappers, dripping faucets and leaking valves (U.S. EPA WaterSense, Fix a Leak Week).
Narrowing it down
- Toilets: food coloring in the tank; color in the bowl means a leak.
- Basement: look along exposed pipes, valves and the water heater.
- Walls and ceilings: stains, bubbling paint, soft drywall.
- Service line: close the main shut-off inside. If the meter still moves, the leak may be between the meter and the house.
Older pipe
Galvanized steel supply pipe, common in homes built before the 1960s, rusts from inside and leaks at threaded joints. One repair often leads to another nearby. Where much of the system is galvanized, replacing it is often the better long-term choice.
Lead service lines
Some older Decatur-area homes have lead water service lines. Illinois's Lead Service Line Replacement and Notification Act requires water systems to inventory and replace them over time (Illinois EPA, lead service line information). If your service line leaks and is lead, ask your water supplier how replacement is handled before planning a private repair. The City of Decatur publishes information for its water customers (City of Decatur, Illinois (water, sewer and permits)).
Slab and under-floor leaks
Homes on slabs can develop leaks in buried lines. Warm spots on the floor, the sound of running water and a moving meter are clues. Acoustic and thermal tools help pinpoint them. The fix may be a spot repair or rerouting the line overhead.
Outside the house
A leak in the service line or a yard hydrant may show as a soggy strip or a spot that stays green. Digging requires a JULIE locate request first (JULIE, Illinois One-Call (call 811 before digging)).
After a freeze
A leak that appears after a cold snap is often a split from freezing. See frozen pipe repair.
Sizing up the job: see what shapes a leak repair scope on the estimate-factors page. It lists what moves the scope, never a price.
Further reading
- Preventing Frozen Pipes in Central Illinois
- Lead Service Lines in Illinois
- Older Decatur Homes: Galvanized, Cast Iron and Clay
Sources for this page: U.S. EPA WaterSense, Fix a Leak Week; Illinois EPA, lead service line information; City of Decatur, Illinois (water, sewer and permits); JULIE, Illinois One-Call (call 811 before digging).
Leak Detection & Repair: what people ask
How do I know if I have a hidden leak?
Turn off all water use and watch the meter. If it moves, there is a leak.
Is a dripping faucet worth fixing?
Yes. Small drips add up to a lot of water over a year.
Why does my galvanized pipe keep leaking?
It rusts from the inside and leaks at joints. Replacement is often the better option.
What if my service line is lead?
Ask your water supplier how it handles lead line replacement under Illinois law.
Who fixes a leak between the meter and the house?
Usually the homeowner. Check with your water supplier.
Leak repair requests by town
Water source, house age, basements and sewer or septic setups vary across Macon County. Pick your town for local notes.
Decatur
North
South and east
West
Often planned alongside
Frozen & Burst Pipe Repair
Thawing frozen lines, repairing split pipes and rerouting or insulating the pipes that freeze every winter.
Toilets, Faucets & Fixtures
Running and leaking toilets, faucets, sinks, showers, laundry tubs and hose bibs repaired or replaced.
Water Heater Repair & Replacement
Tank and tankless water heater repair and replacement for basement and utility-room installs, with venting and code items covered.
Planning leaks work?
Send the details and expect a call back to talk the project through.