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Top 10 Signs Your Home Needs New Insulation

Written by: Insulation Solutions Team

The Insulation Solutions Team has helped homeowners and businesses across Northern California stay comfortable and energy-efficient since 2005. We specialize in innovative insulation systems that save energy, reduce noise, and improve indoor comfort year-round.

Published: September 5, 2025

Insulation is one of those things that most homeowners don’t think about until they start feeling uncomfortable or noticing higher utility bills. But outdated or poorly installed insulation can have a big impact on your home’s comfort, energy usage, and even indoor air quality.

If your house just doesn’t “feel right,” you might want to take a closer look at what’s behind your walls, in your attic, or under your floors.

Here are 10 signs it might be time to consider upgrading your insulation:

1. Your Energy Bills Keep Going Up

If your heating and cooling bills seem to rise every year, and your usage habits haven’t changed, your insulation might be to blame. Good insulation helps keep heated or cooled air where it belongs—inside your home.

2. Rooms That Are Too Hot or Too Cold

Are some rooms always stuffy in the summer or freezing in the winter? Uneven indoor temperatures can indicate gaps in insulation or areas where it’s no longer performing effectively.

3. Drafts or Cold Spots

Feeling a chill around windows, doors, or floorboards—even when everything’s closed tight—is a classic sign of air leakage. Insulation and air sealing work together to keep drafts out.

4. Walls, Floors, or Ceilings That Feel Cold

Touching an interior wall and feeling cold or dampness can mean your wall insulation isn’t doing its job. This is common in older homes or homes with settled insulation.

5. Moisture or Mold Problems

Insulation helps regulate humidity. When insulation fails, excess moisture can get trapped in your home’s structure, leading to mold or mildew—especially in attics, crawl spaces, and basements.
6. Pests in the Attic or Crawlspace

6. Pests in the Attic or Crawlspace

Rodents and insects are often attracted to older insulation materials as nesting spots. If you’re dealing with pests, it’s a good time to inspect and possibly replace insulation.

7. Your Home Was Built Before 1980

Many older homes were built with minimal insulation by today’s standards. If your home hasn’t been updated in decades, chances are it’s under-insulated—especially in the attic.

8. You Hear More Outside Noise Than You Should

Insulation helps with more than just temperature—it can also reduce outside noise. If your home feels loud inside, additional insulation may help you create a quieter living space.

9. Visible Damage in the Attic

If you’ve peeked in the attic and noticed insulation that looks flat, dirty, uneven, or torn apart, it’s likely no longer effective. Proper insulation should look fluffy, clean, and evenly spread.

10. Your HVAC System Can’t Keep Up

If your heating or cooling system seems to be constantly running, struggling to reach the temperature you set, poor insulation could be the culprit. The harder your system works, the more energy (and money) it uses.

It Pays to Insulate™

If any of these signs sound familiar, it’s a good time to schedule a home energy assessment. At Insulation Solutions, we specialize in identifying problem areas and helping homeowners across Northern California, from the Bay Area to Sacramento and up to Lake Tahoe, make smart upgrades that improve comfort and reduce energy costs.

We offer a wide range of insulation options for attics, walls, and floors—including spray foam, blow-in, fiberglass, wool, and more—customized for your home and your budget.

Want a more comfortable home and lower utility bills?
Contact Insulation Solutions today for a free, no-pressure estimate.

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