Have questions about insulation? You’re not alone. Whether you’re upgrading your home, planning a commercial build, or exploring energy-efficient options, understanding insulation is key to making informed decisions. At All Type Insulation Services, we’ve compiled answers to the most common questions we hear from homeowners, contractors, and property managers across Southern California.
From how insulation impacts energy bills to the safest way to remove old materials, this FAQ page is designed to help you find clear, trustworthy information. If you don’t see your question listed here, feel free to contact our team — we’re always happy to help you choose the right solution for your property.
How do you dispose of fiberglass insulation?
Fiberglass insulation should not be thrown out with regular household waste. It must be placed in heavy-duty contractor bags and taken to a local construction and demolition (C&D) landfill or recycling facility that accepts fiberglass. Always wear protective clothing, gloves, and a mask during removal and handling to avoid skin and respiratory irritation. If the insulation is contaminated (e.g., by pests, moisture, or mold), it should be professionally removed.
Do you need insulation in a crawl space?
Yes, insulating your crawl space helps regulate your home’s temperature, prevents moisture problems, and improves energy efficiency. The best approach depends on whether the crawl space is ventilated or unventilated. In Southern California, insulating the crawl space floor and air-sealing the perimeter can reduce drafts and keep your floors more comfortable year-round.
Does spray foam insulation save money?
Yes. Spray foam insulation creates an airtight seal that reduces air leaks — one of the leading causes of energy loss in homes and commercial buildings. While spray foam can cost more upfront, it often leads to significant savings on heating and cooling bills, sometimes up to 30% or more over time.
How well does a radiant barrier work in a garage?
A radiant barrier can be very effective in reducing heat buildup in a garage, especially in hot climates like Southern California. It reflects radiant heat from the sun rather than absorbing it, helping to lower the temperature inside non-conditioned spaces. It’s most effective when installed under the roof or on the ceiling of the garage.
Can I remove attic insulation myself?
Technically, yes — but it’s not always recommended. Attic insulation removal can expose you to dust, fiberglass particles, mold, rodent droppings, and other health hazards. A professional has the right equipment (such as vacuums with HEPA filters) and protective gear to safely remove and dispose of the material. DIY removal is best suited for small, uncontaminated areas and should be approached with caution.
Does insulating my walls increase my home value?
Yes. Adding or upgrading wall insulation can improve your home’s energy efficiency, soundproofing, and overall comfort — all of which are attractive to buyers. A well-insulated home often appraises higher and may sell faster, especially in markets where energy costs are a concern.
How much can you save by insulating your home now?
The U.S. Department of Energy estimates that proper insulation can reduce heating and cooling costs by 15% to 30%, depending on your home’s current condition. In older or under-insulated homes, the savings can be even greater. Upgrading insulation now means you start saving immediately — especially as energy costs continue to rise.
Can upgrading my home insulation save me money on energy?
Absolutely. Insulation reduces heat transfer, which helps your HVAC system run more efficiently. You’ll notice more consistent temperatures and lower monthly utility bills. Over time, the savings often outweigh the installation cost, especially if you qualify for rebates or incentives.
When should you replace attic insulation?
Attic insulation should be replaced if it is more than 15–20 years old, has been damaged by moisture or pests, or no longer provides adequate thermal performance. Signs include high energy bills, inconsistent room temperatures, and visible degradation (such as compression, mold, or dust buildup). If you’ve recently experienced a roof leak, it’s a good idea to have your attic insulation inspected.
When should you not use spray foam insulation?
Spray foam isn’t always the right choice. Avoid it if:
- The area is hard to ventilate and off-gassing is a concern
- There’s moisture buildup or poor drainage (especially in crawl spaces)
- You’re working on historic homes with breathable walls – In these cases, alternate materials like mineral wool or cellulose may be more appropriate. Always consult with a professional before deciding.
Can I throw fiberglass insulation out with the trash?
Disposing of fiberglass insulation requires care to avoid health risks and environmental harm. Fiberglass should be placed in durable contractor-grade bags and taken to a landfill or recycling facility that accepts construction and demolition (C&D) waste. Do not place fiberglass insulation in your regular household trash. Always wear gloves, a long-sleeve shirt, eye protection, and a dust mask when handling it, as the fibers can irritate your skin and lungs. If the insulation is moldy, rodent-infested, or water-damaged, professional removal is recommended for safety and compliance with disposal regulations.