Hello everyone,

I’m looking for advice on home insulation and wondering if anyone here has experience with different types of insulation materials. I recently moved into an older home, and I’ve noticed some areas where the temperature fluctuates more than others.

See here, I’m considering upgrading the insulation, but I’m unsure about the best approach. Should I go with spray foam, fiberglass, or cellulose? Are there any significant differences in energy efficiency, cost, or installation? Also, what are the most common mistakes people make when insulating their homes?

Any guidance or recommendations from home insulation experts would be greatly appreciated!

Thanks!

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For older homes, choosing the right insulation really depends on the areas you want to improve and your budget. Spray foam provides excellent air sealing and energy efficiency, while fiberglass and cellulose are more affordable and easier to install in some spaces. One common mistake is not properly preparing the area before installation, which can reduce effectiveness. Another is trying DIY methods without the right experience or equipment. For those considering doing it themselves, it’s worth comparing spray foam insulation DIY vs professional to see which option ensures better performance and long-term savings. Professional installation often provides more consistent coverage, higher energy efficiency, and fewer issues with gaps or settling over time.