SKU: WOOL-WINDOW-DOOR

NEW Wool Window & Door Insulation

Sale price$65.40

Ordering details

Each Window & Door Insulation Kit comes with 2 Lbs of loose fill wool.

An ideal installation density is about 1.13 Lb per cubic foot, so each kit provides enough insulation to fill the gaps around 2-4 windows or doors depending on the size.

Add up the total volume of your gaps in cubic feet and divide by 1.13 to get a more accurate estimate of the quantity of wool required for your project.

To insulate around a lot of windows and doors, consider a larger quantity of Havelock Wool Loose Fill Insulation.

Shipping
  • Small orders ship in boxes via courier.
  • Pallet orders ship LTL on a freight truck. Freight shipments are typically delivered to the curb of the street or driveway, and they include lift-gate service. The freight company will contact you to make an appointment for final delivery.
Description

Wool Window & Door Insulation provides a natural solution for insulating around windows and doors, to seal gaps where temperature transfer commonly occurs, and to improve overall energy efficiency.

The wool's natural structure creates millions of microscopic air pockets that effectively slow heat movement in both directions. During winter months, this insulation prevents warm air from escaping, while in summer it blocks external heat from entering the building.

Unlike synthetic insulation materials, wool is renewable, biodegradable, and contains no harmful chemicals or VOCs. The material also has natural moisture-wicking properties that help manage condensation issues often found around windows and doors.

Filters air and improves indoor air quality

Harmful chemicals are in your walls. The amino acids in wool irreversibly bond with formaldehyde, NOx and SO2 on a molecular level. For example, tests carried out by the Central Testing Facility in Tokyo, Japan found that when formaldehyde was released into a chamber, wool was able to absorb 96% of the formaldehyde within several hours. This capability is unique to natural fibres.

Moisture and climate control

Moisture and mould happens in your walls. Wool can absorb moisture against 65% relative humidity.

Suppresses mold and mildew

Natural keratin prevents against the spread of mould and mildew.

Absorbs sound

Wool exceeds other forms of insulation as an acoustic buffer and is commonly used to naturally enhance the acoustic properties of a building.

Thermal conductivity

Wool batts are industry standard at R-3.6 per inch; loose-fill outperforms at R-4.3 per inch.

Resists fire

Wool will not support a flame below 1100ºF (593ºC). Havelock wool conforms to Class A of the ASTM E84 test.

All natural

Wool insulation is entirely renewable, biodegradable, and sustainable. It takes approximately 10% of the embodied energy it takes to manufacture fibreglass insulation.

Long lasting

Inherent characteristics allow stated R-values to exceed other forms of insulation.

No off-gassing

Natural characteristics make our insulation devoid of harmful chemicals.

Installs easily

Blow-in and batts are installed like other types of fibrous insulation but with no special protection required.

Documents

Coming soon. Please contact us with any questions.

{"id":7171507879982,"title":"NEW Wool Window \u0026 Door Insulation","handle":"wool-window-door-insulation","description":"\u003ch5\u003eOrdering details\u003c\/h5\u003e\n\u003cp\u003eEach Window \u0026amp; Door Insulation Kit comes with 2 Lbs of loose fill wool.\u003c\/p\u003e\n\u003cp\u003eAn ideal installation density is about 1.13 Lb per cubic foot, so each kit provides enough insulation to fill the gaps around 2-4 windows or doors depending on the size.\u003c\/p\u003e\n\u003cp\u003eAdd up the total volume of your gaps in cubic feet and divide by 1.13 to get a more accurate estimate of the quantity of wool required for your project.\u003c\/p\u003e\n\u003cp\u003eTo insulate around a lot of windows and doors, consider a larger quantity of \u003ca title=\"Havelock Wool Loose Fill Insulation\" href=\"\/products\/havelock-wool-loose-fill-insulation\"\u003eHavelock Wool Loose Fill Insulation\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch5\u003eShipping\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eSmall orders ship in boxes via courier.\u003c\/li\u003e\n\u003cli\u003ePallet orders ship LTL on a freight truck. Freight shipments are typically delivered to the curb of the street or driveway, and they include lift-gate service. The freight company will contact you to make an appointment for final delivery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eWool Window \u0026amp; Door Insulation provides a natural solution for insulating around windows and doors, \u003cmeta charset=\"utf-8\"\u003eto seal gaps where temperature transfer commonly occurs, and to improve overall energy efficiency.\u003c\/p\u003e\n\u003cp\u003eThe wool's natural structure creates millions of microscopic air pockets that effectively slow heat movement in both directions. During winter months, this insulation prevents warm air from escaping, while in summer it blocks external heat from entering the building.\u003c\/p\u003e\n\u003cp\u003eUnlike synthetic insulation materials, wool is renewable, biodegradable, and contains no harmful chemicals or VOCs. The material also has natural moisture-wicking properties that help manage condensation issues often found around windows and doors.\u003c\/p\u003e\n\u003ch6\u003eFilters air and improves indoor air quality\u003c\/h6\u003e\n\u003cp\u003e\u003cspan\u003eHarmful chemicals are in your walls. The amino acids in wool irreversibly bond with formaldehyde, NO\u003csub\u003ex\u003c\/sub\u003e and SO\u003csub\u003e2\u003c\/sub\u003e on a molecular level. For example, t\u003c\/span\u003eests carried out by the Central Testing Facility in Tokyo, Japan found that when formaldehyde was released into a chamber, wool was able to absorb 96% of the formaldehyde within several hours. This capability is unique to natural fibres.\u003c\/p\u003e\n\u003ch6\u003e\u003cspan\u003eMoisture and climate control\u003c\/span\u003e\u003c\/h6\u003e\n\u003cp\u003e\u003cspan\u003eMoisture and mould happens in your walls. Wool can absorb moisture against 65% relative humidity.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003e\u003cspan\u003eSuppresses mold and mildew\u003c\/span\u003e\u003c\/h6\u003e\n\u003cp\u003e\u003cspan\u003eNatural keratin prevents against the spread of mould and mildew.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003e\u003cspan\u003eAbsorbs sound\u003c\/span\u003e\u003c\/h6\u003e\n\u003cp\u003e\u003cspan\u003eWool exceeds other forms of insulation as an acoustic buffer and is commonly used to \u003c\/span\u003enaturally enhance the acoustic properties of a building.\u003c\/p\u003e\n\u003ch5\u003e\u003cspan\u003eThermal conductivity\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp\u003e\u003cspan\u003eWool batts are industry standard at R-3.6 per inch; loose-fill outperforms at R-4.3 per inch.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003e\u003cspan\u003eResists fire\u003c\/span\u003e\u003c\/h6\u003e\n\u003cp\u003e\u003cspan\u003eWool will not support a flame below 1100ºF (593ºC). Havelock wool conforms to Class A of the ASTM E84 test.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003e\u003cspan\u003eAll natural\u003c\/span\u003e\u003c\/h6\u003e\n\u003cp\u003e\u003cspan\u003eWool insulation is entirely renewable, biodegradable, and sustainable. It takes approximately 10% of the embodied energy it takes to manufacture fibreglass insulation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003e\u003cspan\u003eLong lasting\u003c\/span\u003e\u003c\/h6\u003e\n\u003cp\u003e\u003cspan\u003eInherent characteristics allow stated R-values to exceed other forms of insulation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003e\u003cspan\u003eNo off-gassing\u003c\/span\u003e\u003c\/h6\u003e\n\u003cp\u003e\u003cspan\u003eNatural characteristics make our insulation devoid of harmful chemicals.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003e\u003cspan\u003eInstalls easily\u003c\/span\u003e\u003c\/h6\u003e\n\u003cp\u003e\u003cspan\u003eBlow-in and batts are installed like other types of fibrous insulation but with no special protection required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5\u003eDocuments\u003c\/h5\u003e\n\u003cp\u003eComing soon. Please contact us with any questions.\u003c\/p\u003e","published_at":"2025-06-13T16:36:40-04:00","created_at":"2025-06-02T16:48:19-04:00","vendor":"Havelock Wool","type":"Insulation","tags":["Best Selling"],"price":6540,"price_min":6540,"price_max":6540,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":41417039544366,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"WOOL-WINDOW-DOOR","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"NEW Wool Window \u0026 Door Insulation","public_title":null,"options":["Default Title"],"price":6540,"weight":1361,"compare_at_price":null,"inventory_quantity":15,"inventory_management":"shopify","inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/sagerestoration.com\/cdn\/shop\/files\/Wool-Window-Door-Insulation-Box-Open.jpg?v=1749846931","\/\/sagerestoration.com\/cdn\/shop\/files\/Havelock-Wool-Door-Insulation.jpg?v=1749846931","\/\/sagerestoration.com\/cdn\/shop\/files\/Havelock-Wool-Window-Insulation.jpg?v=1749846931","\/\/sagerestoration.com\/cdn\/shop\/files\/Wool-Window-Door-Insulation-Box.jpg?v=1749846931","\/\/sagerestoration.com\/cdn\/shop\/files\/Wool_Fiber_Detail.jpg?v=1749846931"],"featured_image":"\/\/sagerestoration.com\/cdn\/shop\/files\/Wool-Window-Door-Insulation-Box-Open.jpg?v=1749846931","options":["Title"],"media":[{"alt":null,"id":24390079873070,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/sagerestoration.com\/cdn\/shop\/files\/Wool-Window-Door-Insulation-Box-Open.jpg?v=1749846931"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/sagerestoration.com\/cdn\/shop\/files\/Wool-Window-Door-Insulation-Box-Open.jpg?v=1749846931","width":1024},{"alt":null,"id":24359761641518,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/sagerestoration.com\/cdn\/shop\/files\/Havelock-Wool-Door-Insulation.jpg?v=1749846931"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/sagerestoration.com\/cdn\/shop\/files\/Havelock-Wool-Door-Insulation.jpg?v=1749846931","width":1024},{"alt":null,"id":24359761674286,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/sagerestoration.com\/cdn\/shop\/files\/Havelock-Wool-Window-Insulation.jpg?v=1749846931"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/sagerestoration.com\/cdn\/shop\/files\/Havelock-Wool-Window-Insulation.jpg?v=1749846931","width":1024},{"alt":null,"id":24390080299054,"position":4,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/sagerestoration.com\/cdn\/shop\/files\/Wool-Window-Door-Insulation-Box.jpg?v=1749846931"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/sagerestoration.com\/cdn\/shop\/files\/Wool-Window-Door-Insulation-Box.jpg?v=1749846931","width":1024},{"alt":"Wool is such a good insulator because its hollow fibre structure means that it insulates on a fibre-by-fibre basis as well as when it is in a matrix with other fibres.","id":23556822728750,"position":5,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/sagerestoration.com\/cdn\/shop\/files\/Wool_Fiber_Detail.jpg?v=1749846931"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/sagerestoration.com\/cdn\/shop\/files\/Wool_Fiber_Detail.jpg?v=1749846931","width":500}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch5\u003eOrdering details\u003c\/h5\u003e\n\u003cp\u003eEach Window \u0026amp; Door Insulation Kit comes with 2 Lbs of loose fill wool.\u003c\/p\u003e\n\u003cp\u003eAn ideal installation density is about 1.13 Lb per cubic foot, so each kit provides enough insulation to fill the gaps around 2-4 windows or doors depending on the size.\u003c\/p\u003e\n\u003cp\u003eAdd up the total volume of your gaps in cubic feet and divide by 1.13 to get a more accurate estimate of the quantity of wool required for your project.\u003c\/p\u003e\n\u003cp\u003eTo insulate around a lot of windows and doors, consider a larger quantity of \u003ca title=\"Havelock Wool Loose Fill Insulation\" href=\"\/products\/havelock-wool-loose-fill-insulation\"\u003eHavelock Wool Loose Fill Insulation\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch5\u003eShipping\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eSmall orders ship in boxes via courier.\u003c\/li\u003e\n\u003cli\u003ePallet orders ship LTL on a freight truck. Freight shipments are typically delivered to the curb of the street or driveway, and they include lift-gate service. The freight company will contact you to make an appointment for final delivery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eWool Window \u0026amp; Door Insulation provides a natural solution for insulating around windows and doors, \u003cmeta charset=\"utf-8\"\u003eto seal gaps where temperature transfer commonly occurs, and to improve overall energy efficiency.\u003c\/p\u003e\n\u003cp\u003eThe wool's natural structure creates millions of microscopic air pockets that effectively slow heat movement in both directions. During winter months, this insulation prevents warm air from escaping, while in summer it blocks external heat from entering the building.\u003c\/p\u003e\n\u003cp\u003eUnlike synthetic insulation materials, wool is renewable, biodegradable, and contains no harmful chemicals or VOCs. The material also has natural moisture-wicking properties that help manage condensation issues often found around windows and doors.\u003c\/p\u003e\n\u003ch6\u003eFilters air and improves indoor air quality\u003c\/h6\u003e\n\u003cp\u003e\u003cspan\u003eHarmful chemicals are in your walls. The amino acids in wool irreversibly bond with formaldehyde, NO\u003csub\u003ex\u003c\/sub\u003e and SO\u003csub\u003e2\u003c\/sub\u003e on a molecular level. For example, t\u003c\/span\u003eests carried out by the Central Testing Facility in Tokyo, Japan found that when formaldehyde was released into a chamber, wool was able to absorb 96% of the formaldehyde within several hours. This capability is unique to natural fibres.\u003c\/p\u003e\n\u003ch6\u003e\u003cspan\u003eMoisture and climate control\u003c\/span\u003e\u003c\/h6\u003e\n\u003cp\u003e\u003cspan\u003eMoisture and mould happens in your walls. Wool can absorb moisture against 65% relative humidity.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003e\u003cspan\u003eSuppresses mold and mildew\u003c\/span\u003e\u003c\/h6\u003e\n\u003cp\u003e\u003cspan\u003eNatural keratin prevents against the spread of mould and mildew.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003e\u003cspan\u003eAbsorbs sound\u003c\/span\u003e\u003c\/h6\u003e\n\u003cp\u003e\u003cspan\u003eWool exceeds other forms of insulation as an acoustic buffer and is commonly used to \u003c\/span\u003enaturally enhance the acoustic properties of a building.\u003c\/p\u003e\n\u003ch5\u003e\u003cspan\u003eThermal conductivity\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp\u003e\u003cspan\u003eWool batts are industry standard at R-3.6 per inch; loose-fill outperforms at R-4.3 per inch.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003e\u003cspan\u003eResists fire\u003c\/span\u003e\u003c\/h6\u003e\n\u003cp\u003e\u003cspan\u003eWool will not support a flame below 1100ºF (593ºC). Havelock wool conforms to Class A of the ASTM E84 test.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003e\u003cspan\u003eAll natural\u003c\/span\u003e\u003c\/h6\u003e\n\u003cp\u003e\u003cspan\u003eWool insulation is entirely renewable, biodegradable, and sustainable. It takes approximately 10% of the embodied energy it takes to manufacture fibreglass insulation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003e\u003cspan\u003eLong lasting\u003c\/span\u003e\u003c\/h6\u003e\n\u003cp\u003e\u003cspan\u003eInherent characteristics allow stated R-values to exceed other forms of insulation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003e\u003cspan\u003eNo off-gassing\u003c\/span\u003e\u003c\/h6\u003e\n\u003cp\u003e\u003cspan\u003eNatural characteristics make our insulation devoid of harmful chemicals.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003e\u003cspan\u003eInstalls easily\u003c\/span\u003e\u003c\/h6\u003e\n\u003cp\u003e\u003cspan\u003eBlow-in and batts are installed like other types of fibrous insulation but with no special protection required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5\u003eDocuments\u003c\/h5\u003e\n\u003cp\u003eComing soon. Please contact us with any questions.\u003c\/p\u003e"}

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