Saving & Spending Budgeting & Expenses

10 Home Issues That Can Cause Your Heating Bill To Skyrocket

Sneaky culprits behind your rising heating costs this winter

senior woman opening uk energy bill
Updated Dec. 17, 2024
Fact checked

Heating your home gets expensive in the winter, and this year, experts are projecting costs to rise over 10% more than last year. But if you see your bill skyrocketing even more, it may indicate that you have a heating system problem, not just an inflation problem.

To avoid wasting money on an unnecessarily high heating bill, check your home’s heating components for these common problems.

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Poor insulation

artursfoto/Adobe Home insulation

Poor or inadequate insulation allows heat to escape from your home, forcing your furnace to work harder to maintain temperature, leading to higher bills.

Insulation tends to compress or shrink over time (yes, even the foam kind), so if your home is getting older, you may need to add insulation.

Adding extra insulation in places like the attic, walls between the living and unconditioned spaces, and walls along the foundation can improve your home's warmth and utility costs.

Ductwork problems

Kitta/Adobe technician performing maintenance

Leaky ducts lose heated air before they reach the rooms, causing your system to run longer and use more energy. Since most ducts are housed in ceilings or behind walls, leaks can be difficult to detect.

To see if you have leaky ducts, turn on the heating or air conditioning full blast. If one or two rooms have a significantly different temperature than the others, it could indicate that you need to inspect and seal off any leaks in your duct system.

Thermostat malfunctions

Cultured Images/Adobe home with smart thermostat on wall

A faulty thermostat may cycle on and off too frequently, resulting in increased energy consumption. Installing a programmable thermostat that adjusts temperatures based on your schedule can keep your home's temperature predictable and your bill low.

By setting your thermostat to reduce the temperature by 7 to 10 degrees during your workday, you can save about 10% on your utility costs per year.

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Dirty air filter

Serenethos/Adobe man pushing a clean air filter into place

A clogged air filter restricts airflow, making your furnace work harder to circulate air. It can also make your allergies flare up.

Keep a few extra filters near the furnace, and compare the color of the used filter to the new one to see if it’s time to swap yours out. Change your air filter as often as the manufacturer recommends.

Inefficient HVAC system

A Stockphoto/Adobe HVAC system update

An outdated or poorly maintained furnace may not operate at peak efficiency, leading to higher energy usage. Older appliances use 10% to 50% more energy than their newer, more efficient counterparts.

Fuel price fluctuations

Ana Gram/Adobe brown coal power station

Several types of fuel are used to heat American homes, ranging from natural gas to solar to coal. Several factors affect fuel prices of all types, from local supply and demand to storage inventory and imports.

When fuel prices increase due to additional demand from a winter storm or a shortage due to a supply chain disruption, those costs directly impact your heating bill.

Air leaks

detry26/Adobe Man sealings rubber tape on window for weather protection

When there are gaps around windows, doors, and other openings, your “bought air” is heating the great outdoors instead of your living room. These leaks also let cold air in, requiring your heater to run longer to compensate.

Caulk around windows and doors or add weather stripping to prevent warm air from leaving and cold air from entering.

Increased usage

Liubomir/Adobe man controlling thermostat system on wall in apartment

Raising the thermostat setting or spending more time at home during colder months will naturally increase your heating bill. Guests you host for winter vacation stays or holiday parties also use more power.

Even running space heaters can raise your utility costs. If you’re wondering why your heating bill is higher than normal, see if your usage has increased, too.

Energy vampires

Proxima Studio/Adobe power strip socket

Though you may not realize it, appliances that are turned off but plugged in drain small amounts of energy from your home every day. This includes everything from toasters to laptop chargers.

These power suckers can account for anywhere from 10% to 23% of your power bill. This smart homeowner move is possibly the easiest of all — just unplug your computers, appliances, and other devices when you’re not using them.

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Incandescent light bulbs

Kunlathida/Adobe woman hands changing light bulb

We give Edison all the credit for this marvelous invention, but if you’re still using his incandescent bulbs, it’s time for a more efficient upgrade.

New LED bulbs use up to 75% less energy to run than an equivalent incandescent bulb because they only emit light in a single direction. LED bulbs also last longer, so you’ll save money when buying bulbs in the long term.

Bottom line

wayhome.studio/Adobe depressed couple reviewing bills together

Inflation has impacted the cost of just about everything in recent years, and your utility bill hasn’t been spared from this trend. But before you rush out to find a side hustle to make ends meet, consider taking an energy audit of your home to reduce your heating bill.

If your heating bill has really gone through the roof, consider getting a home energy audit. While they can cost between $200 and $700, depending on your area and the size of your home, it might be worth the investment.

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