Sharpline Mechanical

What Happens If You Have a Poorly Installed Home Insulation?


A poorly installed home insulation not just makes the indoor environment too cold, too hot, or too humid, but it also leads to serious problems such as mildew/mold growth that poses a health hazard. If left untreated, it may even lead to structural damage such as wood rot, which happens when excess moisture collects between the wall and insulation or in the roof. 

Here, we list the most common problems caused by poorly installed insulation: 

  • High electricity bills
  • Uncomfortable indoor temperatures
  • Mold and mildew growth
  • Structural damage 
Do You Want to Lower your Utility Bills? Contact us today and schedule an appointment for your free consultation for any heating or cooling concerns.
High Energy/Electricity Bills

High energy bills 

If you notice a sharp, unexplained increase in your monthly energy, it’s usually caused by a cooling/heating system working harder to maintain a comfortable temperature. Even a small drafty window or a dime-sized crack in the wall can lead to a significant energy leak, which results in high electricity bills.


Mold and mildew growth 

Excess moisture in the wall and ceiling can lead to water damage and black splotches, which are actually molds and mildews that pose a serious health issue to some people who are severely allergic to these fungi and their spores that travel through the air. Babies, small children, and adults with compromised immune system are particularly at increased risk. 


Inconsistent or fluctuating temperature 

If one room feels significantly hotter or cooler than the rest of the house, it might be a sign that you have insulation-related problems–e.g., a drafty window or door, air leaks in the wall or attic, etc. 


Another common telltale sign of poor insulation is the constant need to adjust your HVAC system. 


Structural damage 

A poorly installed or damaged insulation can lead to gaps where small critters like termites and rodents find inviting. Additionally, the cracks and crevices can collect water (or excess moisture), leading to wood rot and mildew/mold growth. 


Excess moisture can also ruin the paint on the wall and ceiling, making your home look dingy and old. 

What If You Suspect that You Have Poor Home Insulation?

If you suspect that you have a drafty home, contact a professional who offers an energy efficiency assessment. Some HVAC companies, such as Sharpline Mechanical, provide this service to complement their heating and cooling installation, repair, and maintenance. 


According to Sharpline Mechanical website, even the most energy-efficient HVAC systems cannot lower your electricity bill if your home has air leaks, causing heat to escape from the house, which results in fluctuating indoor temperatures and high energy costs. 


Meanwhile, the Northern California HVAC company recommends blown-in insulation for drafty homes. This type of insulation can be easily added between existing ceiling joints and attics without resorting to some major [and expensive] home improvement. 


To learn more about blown-in insulation, read our Home Performance page or call us at 530-248-2131.

Aside from insulation services, Sharpline Mechanical also offers heating and air conditioning services, HVAC service and repair, and air purification systems to homeowners and businesses in Northern California.

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