Available at Lowe's and The Home Depot!

Language

Your cart

Your cart is empty

Loose Fill Insulation | R15 - R60

SKU: 30LB-BLOWN-BAG
Regular price $180.00
Unit price
per
4.9 (121)

Loose Fill Insulation | R15 - R60

SKU: 30LB-BLOWN-BAG
Regular price $180.00
Unit price
per
4.9 (121)

Havelock Wool Loose-Fill Insulation offers a flexible, natural solution for hard-to-reach areas. Blown into attics, walls, or ceilings, it fills every gap to deliver exceptional thermal performance and sound control.

Blown‑In Insulation Calculator

? Toggle between Walls and Attics to calculate the required bags.
Mode:
Insulation required (SqFt)
Wall Framing Depth (in)

1-2 week lead time for pallet orders

Fast Shipping
Secure payment

Fast shipping
Sustainable
Highly-rated

Flexible, Full Coverage

Blow-in wool fills gaps, voids, and irregular spaces with ease. It creates seamless insulation around wiring, pipes, and framing for more complete coverage than rigid or batt formats can provide.

Better Air, Fewer Toxins

Wool helps trap airborne chemicals like formaldehyde and VOCs while regulating moisture and resisting mold. It supports healthier indoor environments without added adhesives or synthetic binders.

HAVELOCK

Blow-in Wool Insulation

Not all insulation performs the same behind the walls. Compare wool to other common materials to see how it stacks up in safety, sustainability, sound control, and moisture management.

Air
Filtration
Moisture
Management
Insulation
Performance
Sound
Absorption
Sustainability Easy
Installation
★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★
Fiberglass ★★
Mineral Wool ★★★ ★★ ★★ ★★
Foam ★★★ ★★
Thinsulate ★★ ★★★ ★★★ ★★★

Frequently Asked Questions

average rating 4.9 out of 5
Based on 121 reviews
  • 5 Stars
    115 Reviews
  • 4 Stars
    5 Reviews
  • 3 Stars
    1 Review
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
99% of reviewers would recommend this product to a friend
Easy to Install
Rated 4 out of 5
Customer photos and videos
121 Reviews
Reviewed by Bernard D.
Verified Buyer
Havelock Wool PRO Batt insulation - R22 | 16" OC
Reviewing
Havelock Wool PRO Batt insulation - R22 | 16" OC
I recommend this product
Product Standouts
  • Fire resistant
  • Safe to Handle
  • Fast & Easy to Install
  • No Off-Gassing
I used Havelock Wool in my
crawl space
I installed Havelock because
  • improve air quality
  • I care about the environment
  • moisture management
  • ease of installation
Rated 5 out of 5
Review posted

Thankful for this product.

I chose havelock wool for my home crawlspace because it is not hazardous to human health - given that my hvac and dehumidification system is located there and the air exchange that tales place with my living space. This is a very , very nice product to work with, looks great, feels great and makes me feel good that I have the best environmentally friendly insulation made. It was the costliest option only because of shipping but well worth it. I would easily choose havelock wool for my entire home if i built one. The staff at havelock provided great support. I made a jig just like in their videos, c -clamped securely to a work bench and used a long , sharp serrated bread knife for my cuts. I cut 3/4 of the batt pulling toward me, the finished the cut going away. Worked perfectly making nice clean cuts. Whether you do an insulating job yourself or have someone do it, you will be very pleased with havelock wool.

Loading...
Easy to Install
Rated 5 out of 5
Was this helpful?
Reviewed by James
Havelock Wool PRO Batt insulation - R14 | 24" OC
Reviewing
Havelock Wool PRO Batt insulation - R14 | 24" OC
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

In my opinion this is the best insulation on the market, clean, no itch, easy to work with and cut with the right tool. I’ve insulated a few buildings on my farm with it, and it works great.

Loading...
Was this helpful?
Reviewed by Jason T.
Verified Buyer
Havelock Wool PRO Batt insulation - R22 | 16" OC
Reviewing
Havelock Wool PRO Batt insulation - R22 | 16" OC
I recommend this product
Product Standouts
  • Safe to Handle
  • Fast & Easy to Install
  • Insect Resistant
  • No Off-Gassing
  • Fire resistant
I used Havelock Wool in my
basement
I installed Havelock because
  • ease of installation
  • improve air quality
  • I care about the environment
Rated 5 out of 5
Review posted

Couldn’t ask for a better insulation

Easy to use, easy to install. My 2 year old daughter helped me install this insulation… couldn’t do that with fiberglass or other toxic brands. Love this company and this is the only insulation I’ll ever use.

Loading...
Easy to Install
Rated 5 out of 5
Was this helpful?
Reviewed by Michael O.
Verified Buyer
I recommend this product
Product Standouts
  • Mold Resistant
  • Insect Resistant
  • Safe to Handle
  • Fire resistant
  • No Off-Gassing
I used Havelock Wool in my
crawl space
I installed Havelock because
  • moisture management
Rated 5 out of 5
Review posted

Replace damaged insulation century homr

Excellent information on website good communication

Loading...
Easy to Install
Rated 5 out of 5
Was this helpful?
Reviewed by Jeffrey P.
Verified Buyer
I recommend this product
Product Standouts
  • Passive Air Filtration
  • Sound Dampening
  • Mold Resistant
  • Fast & Easy to Install
  • Safe to Handle
I used Havelock Wool in my
basement
I installed Havelock because
  • ease of installation
  • sound abatement
  • moisture management
Rated 4 out of 5
Review posted

Basement insulation project

Unable to get an insulation blower from Havelock due to none in stock. So I converted my sawdust vacuum system into a blower. Took a little bit of metal fabrication to make an exhaust port but it worked well. Blowing in the insulation was a slow process in our basement ceiling. It was because of the pipes, wires, and ductwork made it difficult to see and get the hose all the way to the end of the stud bay. The blown insulation really expands as it is applied and so we had more insulation left over for our attic project - I calculated that we got twice as much coverage from each bale than predicted. No itching was great too!

Loading...
Easy to Install
Rated 3 out of 5
Was this helpful?