It usually starts with a brown stain on the drywall that you’re pretty sure wasn’t there last week, and then one morning there’s a drip hitting the carpet and a bubble in the paint the size of a dinner plate. A ceiling leak has a way of wrecking a perfectly normal Tuesday, and honestly, what you do in that first hour decides a lot about how big the repair bill gets.
We talk to homeowners every week who froze up because they had no idea what to do first, or who to call for a water leak in the ceiling in the first place. None of what follows takes special tools, and all of it can be done by a regular person while a licensed plumber is on the way. These are the same seven steps our team at PF Plumbing walks Winston-Salem homeowners through over the phone when they call about a ceiling leak, and after the steps we get into what usually causes one and how to keep it from coming back.
Key Notes
- About 1 in 60 insured homes files a claim for water damage or freezing every year, according to the Insurance Information Institute, which puts it among the most common homeowners claims there is.
- Going by Insurance Information Institute data from 2018 to 2022, the average water damage and freezing claim comes in close to $14,000.
- The EPA notes that mold can begin growing on wet building materials within 24 to 48 hours, so getting a professional out to a ceiling leak quickly can save you a good chunk of money.
Steps 1 to 3: protect your home in the first few minutes
In the first few minutes after you notice a ceiling leak, you’re just trying to keep the damage from getting bigger. What caused it can wait, so for now your whole job is stopping the water, keeping people out of harm’s way and getting your stuff out from under it.
Step 1: shut off the water supply
Say there’s a bathroom or a kitchen sitting right on top of that ceiling leak. Nine times out of ten the water is coming off a supply line, a drain or some fixture up there, so the first thing we’d have you do is close the main shutoff valve, because that’s what stops fresh water from feeding it. Where is it? In most Winston-Salem homes we end up finding the main valve in the basement or the crawl space, sometimes in a utility room, sometimes right by the water heater, and you turn it clockwise to close it. If yours is stuck or you can’t find it, tell us when you call. A seized shutoff valve is a quick fix for us, and you really do want it working before the next emergency comes along.
If the dripping started during heavy rain and there isn’t any plumbing above that spot, the water is probably coming in through the roof and shutting off the main won’t help. We explain how to tell those two apart down in Step 7.
Step 2: turn off electricity near the leak
Water and electricity are a dangerous mix. Is the ceiling leak close to a light fixture, a ceiling fan, a smoke detector or an outlet? Then head to the electrical panel and flip the breaker for that part of the house off, and leave anything wet (switches included) alone. Water pooling by the panel is a different situation, and there we’d say don’t go near it at all, just call an electrician or your utility company.
Step 3: move belongings and catch the water
Drag furniture, electronics, rugs and anything valuable out from under the ceiling leak, then set a bucket, a trash can or a big stockpot under the drip and lay some towels or a plastic tarp around it for the splashes. We also tell people to fold a couple of old towels underneath the bucket, because a steady drip will bounce right back out of a container onto the floor. And if that floor is hardwood, wipe up any standing water right away so the boards don’t warp and cup on you.
Steps 4 to 6: relieve pressure and document the damage
Once nobody’s in danger, the next job is keeping a small ceiling leak from turning into a ceiling that’s lying on your floor. It’s also when you set up a smooth insurance claim.
Step 4: check for sagging drywall
Look for a bulge or a bubble where the water from the ceiling leak is collecting, because drywall soaks up water like a sponge and a sagging section can hold several gallons before it finally gives way. If you do see one, put a bucket right under it and carefully poke a small hole at the lowest point with a screwdriver, which lets the water drain out in a controlled way instead of bringing that whole section down at once. If the ceiling is sagging badly, though, or you can see it starting to crack, get everybody out of that room and let a professional take it from there.
Step 5: take photos and videos
Before anything gets cleaned up or repaired, document everything with clear photos and video of the ceiling leak, the stain, the water on the floor and any belongings that got damaged. Write down the date and the time you first noticed the problem too. Most homeowners insurance policies cover sudden and accidental water damage, such as a burst pipe, but insurers want proof, and a licensed plumber’s diagnosis of what failed and why goes a long way toward supporting your claim, which is one more reason to have a professional find the source.
Step 6: start drying the area
Open the windows if the weather allows it, get some fans running and plug in a dehumidifier to pull moisture out of the air, and carry the wet rugs and cushions somewhere they can actually dry. The goal is getting that room as dry as you can within the first day or two, since damp drywall, insulation and wood framing are exactly where mold likes to grow. Keep in mind that drying only works once the water has stopped for good, since an unrepaired source means the ceiling leak comes right back. With a larger ceiling leak, a water damage restoration company can bring in commercial drying equipment that reaches inside the walls and ceiling cavities.
Step 7: call the right professional for your ceiling leak
Here’s the step where most people get stuck. Who to call for a water leak in the ceiling really depends on where that ceiling leak is coming from, and if you call the wrong trade first you lose a couple of hours while the water keeps spreading.
When to call a plumber for a ceiling leak
You want a plumber for a ceiling leak in any of these situations:
- There’s a bathroom, a kitchen, a laundry room or a water heater directly above the stain.
- The leak keeps happening whether or not it’s raining outside.
- The drip gets noticeably worse after someone showers, flushes or runs the dishwasher.
What we usually find behind those is a leaking supply line, a wax ring under a toilet that has failed, a cracked drain pipe or a worn shower pan. We do those plumbing repairs every week in Winston-Salem and around the Piedmont Triad. Once the source is fixed, a licensed plumber should go over the rest of your plumbing system too, so it doesn’t just pop up again in another room.
When to call a roofer
Call a roofer when the ceiling leak only shows up during or after rain, when it’s on the top floor, or when it sits below an attic, a chimney, a skylight or a vent, because in those cases the roof is the likely culprit. Missing shingles, cracked flashing and clogged gutters are the usual causes, and in winter an ice dam can also push water up under the shingles and into the attic.
There’s one more possibility we’d keep in mind, which is that an HVAC unit up in the attic can drip condensation through the ceiling whenever its drain line clogs. So if your ceiling leak is near the air handler and it shows up during cooling season, have that condensate line checked. And if you honestly can’t tell which of these it is, start with a plumber, since we can rule plumbing in or out pretty quickly and point you in the right direction from there.
How a plumber finds a hidden leak
Not every ceiling leak points straight back to where it started, because water likes to travel along joists and pipes and then show up several feet away from the actual leak. Guessing at it usually means cutting open a lot more drywall than anybody needed to. PF Plumbing’s leak detection service uses moisture meters, thermal imaging cameras and acoustic leak detectors to find the source of a ceiling leak with as little damage to your ceiling as we can manage, and a smaller opening means a smaller repair and a faster cleanup for you.
What causes a ceiling leak under a bathroom or kitchen
It helps to know the common causes, partly so you can describe what’s going on when you call a plumber for a ceiling leak and partly so you can spot trouble early, before there’s ever a stain to look at.
Leaking toilet seals and supply lines
Every toilet sits on a wax ring that seals it to the drain, and once that ring wears out or the toilet starts to rock a bit, a little water escapes with every single flush. Over weeks or months that small leak soaks into the subfloor, and eventually it shows up as a ceiling leak in the room below. Braided supply lines can fail as well, especially the older plastic ones, and when those go they tend to leak a whole lot faster. Both are straightforward repairs for a licensed plumber, and both cost far less when somebody catches them early.
Worn shower pans, grout and tub drains
Cracked grout, failed caulk and worn shower pans all let water seep in behind the tile and down into the floor structure, and the connections on a tub drain can work themselves loose over time too. The telltale sign with this one is a ceiling leak that only appears after somebody takes a shower or a bath. What a plumber can do is test the drain and the pan separately to find out which one is failing, so you only end up paying to fix the part that’s actually broken.
Burst or corroded pipes
A lot of the older homes around the Piedmont Triad still have galvanized steel or early copper pipes that corrode from the inside out, and pinhole leaks can develop in those pipes without any warning at all. The pipes running through exterior walls, attics and crawl spaces can also freeze and burst during a cold snap. A burst pipe can turn into a major ceiling leak in minutes, and that’s exactly what PF Plumbing’s 24/7 emergency service is there for.
How to prevent another ceiling leak
Fixing the problem you’ve got right now obviously comes first, but a few simple habits make it much less likely you’ll be dealing with a repeat ceiling leak.
Schedule annual plumbing inspections
Once a year, have a licensed plumber come through for a plumbing inspection. We look at supply lines and shutoff valves, check the toilet seals and your water pressure, and eyeball the exposed pipes, all so a small issue gets caught before it ever becomes a ceiling leak. It costs a fraction of what drywall, insulation and flooring repairs run, and for an older home we honestly think it’s one of the easiest kinds of protection you can buy.
Keep an eye on your water bill and meter
An unexplained jump in your water bill is often the very first sign of a hidden leak, and it tends to show up long before a ceiling leak does. There’s also a meter test you can do yourself:
- Shut off every faucet you’ve got, plus anything else in the house that uses water.
- Go out to the meter and jot down what it reads.
- Leave it all off for two hours, then walk back out and read it again.
Did the number move with everything off? Then you’ve got water getting out somewhere in your home, and professional leak detection is how we’d find it before it makes it to your ceiling.
Protect pipes before winter arrives
Here’s what we’d have you do to your pipes before it turns cold:
- Get insulation on any pipe that runs through the attic, the crawl space or an exterior wall.
- Take the garden hoses off in the fall.
- Going out of town? Leave the thermostat at 55°F or higher.
- On the coldest nights, open the cabinet doors under any sink on an outside wall so warm air reaches the pipes.
If you have us out for a fall inspection we’ll also show you which pipes are the vulnerable ones, which goes a long way toward stopping a frozen pipe from becoming a ceiling leak some morning in January.
Frequently asked questions
Who do I call for a water leak in the ceiling? Call a plumber when there’s a bathroom, a kitchen or other plumbing above the leak, or when it happens whether or not it’s raining. It’s a roofer you want if that ceiling leak only ever appears during rain, or if it’s sitting under the attic or the roof. Can’t tell which one you’ve got? Then call the plumber first, because ruling plumbing in or out is quick work for us.
Is a ceiling leak an emergency? Most of the time, yes. Drywall and insulation pass water along a lot faster than people expect, a sagging section can come down on somebody, and you’ve only got about 24 to 48 hours before mold can start growing in there, so the faster somebody gets out to it the less the repair ends up costing you.
Should I poke a hole in a sagging ceiling? If it’s just the one section bulging with water, then yeah, we’d tell you to go ahead. The bucket goes under it first, though, and the hole should be small and at the very lowest point of the bulge, because that’s what lets it drain safely and keeps that piece of ceiling from collapsing. When the whole thing is cracking or sagging heavily we’d leave it alone, keep everyone out of that room and wait until a professional gets there.
Does homeowners insurance cover a ceiling leak? We’re plumbers and not adjusters, so check your own policy, but most of them do cover water damage that’s sudden and accidental, like a burst pipe. Where people get turned down is the slow ceiling leak that comes from lack of maintenance, since that kind of damage is often excluded. Either way, document everything you can and hang on to your plumber’s diagnosis, because it supports your claim.
How does a plumber find the source of a ceiling leak? A plumber will go over the area with a moisture meter and a thermal imaging camera, and use acoustic leak detection where it makes sense, to follow the water back to wherever it started, and a lot of the time that gets done without us opening up large sections of your ceiling.
How much does it cost to fix a ceiling leak? It comes down to what’s leaking and how much damage it has done by the time we see it. Replacing a toilet seal or a supply line is usually much less expensive than repairing a corroded or burst pipe, and the drywall repair is extra on top of that. In our experience, the sooner a ceiling leak gets fixed, the lower the total bill tends to be.
So if there’s a ceiling leak at your place in Winston-Salem, Clemmons, Kernersville or anywhere in the Piedmont Triad, call PF Plumbing. Our licensed plumbers track down the source fast and fix it right, which is how a small ceiling leak stays small instead of turning into a major repair. Call us today or schedule service online, and our 24/7 emergency team will be on the way.