Most water heater leaks start small. You notice a puddle at the base of the tank, damp carpet on the other side of the utility room wall, or a drip from a pipe on top of the heater. In a lot of Olathe homes the water heater sits in a basement utility room right next to finished space, so a small leak can reach carpet, pad and drywall before anyone sees it.
Here's what to do first, what you can safely check yourself, and when it makes sense to call for help.
First, Stay Safe
A water heater runs on electricity or gas, and it usually sits close to the furnace and sometimes the electrical panel.
Don't touch anything electrical if there's water near it. That includes the heater's wiring, outlets, extension cords and the breaker panel. Stay out of the water and call first: an electrician, your utility or us.
If you smell gas, leave the house and call your gas utility from outside.
Watch for hot water. Water from the tank or the relief valve pipe can be hot enough to burn. Keep kids and pets away.
Stop the Water if You Can Reach the Valve Safely
Most tanks have a cold-water shutoff valve on the pipe going into the top of the heater. Turning it clockwise stops new water from flowing into the tank. Only do this if you can reach it from a dry spot without touching anything electrical. If you can't, use the main water shutoff for the house, which is usually where the water line comes into the home.
Closing the cold supply won't empty the tank, so water already inside can keep leaking. A plumber can drain the tank and shut the heater down properly. Call one once the water is stopped or slowed.
Where Is the Water Coming From?
The location of the leak tells your plumber and your insurance company a lot. Look without touching, and take photos:
The bottom of the tank. Water pooling under the tank, especially with rust at the base, often means the tank itself is failing. A leaking tank usually needs to be replaced, not repaired.
Fittings on top. Drips from the pipe connections on top can come from a loose or corroded fitting, which is often a simpler repair.
The relief valve pipe. The pipe running down the side of the tank comes from the temperature and pressure relief valve. Water from it can mean the valve is doing its job or that it's failing. Leave it to the plumber.
The drain valve. The small valve near the bottom may be dripping because it isn't fully closed or has worn out.
Condensation. A gas water heater can sweat a little, especially while it refills with cold water. If the puddle keeps growing, treat it as a leak.
Check How Far the Water Went
The water you can see is rarely all of it. Water heater leaks tend to run along the slab and under walls, then wick up into drywall and soak the carpet pad in the next room. Before you decide it's just a puddle, check:
Carpet next to the utility room wall. Press it with your hand and notice whether it feels wet or cool.
Baseboards and the bottom of the drywall on both sides of the utility room walls. Look for swelling, peeling paint or a darker band.
Boxes and belongings stored on the floor near the tank.
A musty smell, which can mean water has been there longer than you thought.
Move what you can off the wet floor, and photograph everything before it's moved or thrown out.
Olathe Homes and Water Heater Leaks
Olathe has a mix of newer subdivisions and established neighborhoods closer to downtown, and water heater leaks show up in both. In newer homes the heater is often in an unfinished utility room surrounded by a finished basement, so a leak reaches carpet and drywall quickly. When a house was built with all of its appliances at once, the water heater, washer hoses and dishwasher lines can wear out within a few years of each other. In older homes the tank is often in a basement next to stored belongings.
If your home is newer and still under a builder warranty, stop the water and get the drying started first, then let your builder know. We document what we find, which helps with both the builder and your insurance company.
Water heater leaking right now? Call Blue Valley at (913) 395-8488. Open 7 AM–9 PM, every day.
What We Do After a Water Heater Leak
When you call, we will ask what happened and whether the water is stopped. Then the work usually goes in this order:
Find where the water went. Moisture meters show what's wet under carpet, behind baseboards and inside walls, even where things look dry.
Remove the water. Extraction pulls water out of carpet, pad and the floor so drying can start.
Take out only what can't dry. Soaked pad and swollen baseboards often come out. Drywall can sometimes dry in place. If it can't, we cut only what's needed and explain why.
Dry the structure. Air movers and dehumidifiers are placed for the space and adjusted as readings come down.
Document it. Photos and moisture readings throughout the job give your insurance company a clear record.
The plumber repairs or replaces the heater. We handle the water damage around it, and if repairs are needed after drying, we can help with that too. Our water heater leak cleanup page covers the process in more detail, and structural drying explains how we decide when it's dry.
Will Insurance Cover It?
It depends on your policy, and your insurance company makes that call. Many policies treat sudden, accidental water damage differently from damage caused by a slow leak or wear over time, and the heater itself is often treated differently from the damage it caused. Call your agent or insurer to ask. Your photos, the date you found the leak and what the plumber says caused it all help. We document the damage and the drying with photos and readings your adjuster can use.
Frequently Asked Questions
Can I keep using my water heater if it's only leaking a little?
It's better not to. A small leak at the bottom of a tank usually gets worse, and a slow leak can soak walls and flooring before anyone notices. Shut off the cold-water supply if you can reach it safely, and have a plumber look at it.
How do I know if the water got into my walls?
Look for swelling or peeling paint at the bottom of the drywall, damp baseboards or a musty smell. The only way to know for sure is a moisture meter. We check the walls and floor around the heater, including the rooms on the other side.
Will my carpet have to be replaced?
Not always. Carpet wet with clean water from a water heater can often be dried and saved if drying starts quickly. The pad underneath holds the most water and is commonly replaced. We check both before deciding.
Should I call a plumber or a restoration company first?
If the leak is still running and you can't stop it, call a plumber. If water has reached carpet, drywall or another room, call us too. The plumber fixes the heater, and we dry the house.
Call our restoration team
If your water heater leaked, call Blue Valley at (913) 395-8488. We answer 7 AM–9 PM every day. We're IICRC Certified & Fully Insured, and we will walk you through what happens next. You can also request a free evaluation with the form below, or read more about our water damage restoration in Olathe.