What’s That Sound? Common House Noises Minnesota Homeowners Should Know
Every home makes noise.
Floors creak. Pipes knock. Appliances hum. Furnaces click on and off.
And in Minnesota, where a home can experience below-zero winter temperatures, humid summers and significant temperature swings throughout the year, houses do quite a bit of expanding and contracting.
Most household noises are completely normal. But a new, persistent or unusually loud sound can sometimes be your home's way of telling you something needs attention.
Knowing what you're hearing may help you catch a small maintenance issue before it becomes a much more expensive repair.
Banging or Knocking Pipes
Ever turn off a faucet, washing machine or dishwasher and hear a sudden BANG from somewhere in the house?
That may be caused by a sudden change in water pressure, commonly called water hammer.
An occasional sound may not indicate a serious problem. Frequent or forceful banging, however, is worth investigating. Possible causes can include loose plumbing, worn valves or excessive water pressure.
Minnesota homeowners should pay particular attention to plumbing noises during cold weather.
If you hear unusual sounds from pipes located near exterior walls, especially when temperatures have dropped dramatically, don't automatically assume it's normal winter noise. Frozen or partially frozen plumbing can become a much bigger problem if a pipe bursts.
Creaking and Squeaking Floors
A squeaky floor doesn't necessarily mean your house is falling apart.
Wood naturally expands and contracts as temperature and humidity change, and Minnesota gives our houses plenty of both.
Floorboards, subfloors and framing components can rub against one another and create creaks or squeaks, particularly in older homes.
What deserves more attention?
A sound that is new or getting noticeably worse—especially if you also notice soft spots, movement, significant slopes or other changes in the floor.
That's when I would want someone qualified to take a closer look rather than guessing at the cause.
Clicking, Popping and Ticking From the Furnace or Ductwork
This one is especially familiar during a Minnesota heating season.
When your furnace starts running, metal ductwork heats up and expands. When the system shuts off, it cools and contracts.
That can create pops, ticks and occasional bangs throughout the house.
Often, that's perfectly normal.
Repeated clicking from a furnace, air conditioner or appliance that is trying—and failing—to start is different. That can indicate a mechanical or electrical problem that deserves professional attention.
And if your furnace suddenly starts making a sound you've never heard before in the middle of January?
That's probably not the time to wait three weeks to see whether it goes away.
Humming or Buzzing
Many household systems make a quiet hum while operating.
Refrigerators, furnaces, air conditioners, sump pumps and other mechanical equipment all produce some degree of normal operating noise.
Electrical buzzing is another matter.
Buzzing from an outlet, switch, light fixture or electrical panel should not be ignored, particularly if it is accompanied by:
Flickering lights
An unusually warm outlet or switch
Discoloration
A burning odor
Frequently tripped breakers
If you can safely stop using the affected fixture or device, do so and have the issue evaluated by a qualified electrician.
Dripping, Trickling or Running Water When Nothing Is On
A dripping bathroom faucet is pretty easy to identify.
Water sounds coming from inside a wall, beneath a floor or somewhere you can't see deserve more investigation.
First, check the obvious sources:
Toilets
Faucets
Dishwasher
Washing machine
Water heater
Refrigerator water line
Utility sink
Visible plumbing
If everything is turned off and you can still hear water moving, there may be a hidden leak.
This is particularly important in homes with finished basements, where a small plumbing problem can cause damage before anyone realizes water is getting behind a wall or beneath flooring.
That Sump Pump You Suddenly Hear Running
For many Twin Cities homeowners, sump-pump noises are part of spring.
As snow melts and spring rain arrives, groundwater levels can rise and a sump pump may begin running much more frequently.
Hearing it cycle isn't necessarily bad.
Not hearing it when you expect it to be working can be the bigger concern.
If your sump pump seems to run constantly, starts making unusual noises or isn't operating during wet conditions, it may be worth having the system checked.
And if your home depends heavily on a sump pump, a battery backup or other contingency plan may be worth discussing before the next big Minnesota storm.
Scratching in the Walls or Attic
If you're hearing scratching, scurrying or little footsteps—especially at night—you may have some uninvited roommates.
Mice and other pests commonly look for sheltered places as Minnesota temperatures drop.
Attics, garages, wall cavities and basements can provide exactly what they're looking for.
Look for signs such as:
Droppings
Disturbed insulation
Damaged vents
Chewed materials
Small exterior openings
If animals have entered the home, make sure they're properly removed before simply sealing the opening.
You don't want to solve one problem by creating a much smellier one inside the wall.
A Thump, Boom or Crack on a Very Cold Night
Minnesota homeowners sometimes hear dramatic noises during periods of extreme cold.
Building materials can contract as temperatures fall, and homes may make surprisingly loud pops or cracking sounds as components move.
That doesn't automatically mean something has failed structurally.
But context matters.
A single sound during a severe temperature change is different from repeated noises accompanied by new cracks, movement, water intrusion or visible changes to the house.
When you're unsure, having the right professional evaluate it is far better than diagnosing a house by sound alone.
Your House Doesn't Need to Be Silent to Be Healthy
Homes move.
Mechanical systems cycle.
Wood expands and contracts.
Water flows.
A 1950s rambler in Roseville may sound completely different from a newer home in Hugo or Blaine—and neither one needs to be completely quiet to be in good condition.
What I pay attention to is change.
Is the sound:
New?
Getting louder?
Becoming more frequent?
Coming from somewhere unexpected?
Accompanied by water, odors, heat, movement or another warning sign?
Those are clues that it's worth investigating.
Don't Ignore Your House When It Starts Talking to You
One of the advantages of owning a home for a while is that you begin to know its normal sounds.
You know what the furnace sounds like when it kicks on.
You recognize the floorboard that always squeaks.
You know when the sump pump normally runs.
So when your house suddenly sounds different, pay attention.
Sometimes the answer is nothing more than Minnesota weather and normal expansion and contraction.
Sometimes it's an inexpensive maintenance item.
And occasionally, catching that strange sound early can prevent a much larger repair.
Hearing something unusual in your Twin Cities home and not sure who handles it? Call Sarah First. I may not be the person who fixes furnaces, plumbing or electrical systems—but after years of walking through Minnesota homes, I can often help you identify the right type of local professional to call next.
