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How to Fix Hot and Cold Spots in Your Home

November 13, 2019 by Tom Hoffmann

Checking for possible causes of hot and cold spots in your house may not be entirely possible without the right equipment and expertise.

Ideally, your HVAC system should be calibrated to provide a nice, constant temperature and airflow in every room in your home. Sure, when you live with other people, they might have different preferences for their room, which is why many systems come with programmable thermostats for separate areas of the house.

However, when your house has hot or cold spots that you can’t control, this becomes a problem that may require some investigation. Here are some possible causes of hot and cold spots in your house.

Airflow Issues

When one of your rooms is hotter than it should be while the others may get too much cold air from the air conditioning system, the problem is likely with the air ventilation network. The hot room is simply not receiving enough cold air, which in turn goes to other areas of the house. The result is an uncomfortable mix of hot and cold.

Here is what to investigate first:

Are Your Air Ducts Properly Sized?

If the air ducts are too narrow, then the airflow is restricted to certain areas and you’ll get hot spots. You might need to adjust the duct size in certain rooms, so that more or less air comes in, depending on the type of size discrepancy.

Is the Ductwork Damaged?

A leak could be the cause of your hot and cold spots. A damaged air duct can easily disturb the balance in your climate system. An HVAC professional is able to evaluate your ductwork and see if there is any problem with it.

Poor Insulation

If a faulty duct system didn’t cause the problems with the airflow, then poor insulation may be the reason behind the temperature fluctuations. Again, a professional would be able to test this with special equipment. Poorly insulated areas can be too hot or too cold at certain times of the year, or all the time.

Air Leaks

Even if your home’s insulation is ok, it might be compromised by air leaks that let the temperatures go up and down. Gaps and cracks in the house can let in cold or hot air from the outside, sabotaging your HVAC system. If airflow and insulation turn out to be ok, but you still have hot and cold spots, that would be the next step to investigate.

Checking for possible causes of hot and cold spots in your house may not be entirely possible without the right equipment and expertise. Speak with an experienced HVAC technician to look into the problem and avoid frustration and too much trial-and-error testing. They will be able to suggest the best options to solve your issue.

Give us a call 24/7 at (314) 471-7625!

Filed Under: HVAC Blog Tagged With: HVAC Maintenance, thermostats

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