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Loft Insulation Removal & Replacement

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Loft Insulation Removal & Replacement: A Comprehensive Guide

Replacing old loft insulation can improve your home's energy efficiency, comfort, and value. This guide covers everything you need to know about removing old insulation and installing new insulation, including preparation, tools, materials, step-by-step instructions, safety considerations, and disposal.


  1. Assessment:

    • Inspect the Insulation: Determine the type and condition of the existing insulation (e.g., fiberglass, cellulose, mineral wool). Check for mold, pests, or water damage.
    • Check for Asbestos: If your home was built before the 1980s, there might be asbestos in the insulation. If suspected, hire a professional to test and remove it safely.

  2. Gather Tools and Materials:

    • Protective Gear: Coveralls, gloves, goggles, and a dust mask or respirator (rated for fine particles).
    • Tools: Utility knife, industrial vacuum with HEPA filter, flashlight or portable lighting, ladder (if needed), heavy-duty garbage bags, tape for sealing bags, and plastic sheeting to protect flooring.
    • New Insulation: Choose the appropriate type of insulation for your needs (e.g., fiberglass batts, blown-in cellulose, spray foam).

  3. Ventilation:

    • Ensure proper ventilation by opening windows or using fans to minimize dust.

Step-by-Step Instructions


  1. Clear the Loft:

    • Remove any stored items from the loft to create a clear workspace.

  2. Safety First:

    • Wear protective gear at all times to avoid skin irritation and respiratory issues.

  3. Removing Insulation:

    • Fiberglass Insulation: Use a utility knife to cut batts into manageable sections. Roll them up and place them in heavy-duty garbage bags. Seal the bags with tape.
    • Loose-Fill Insulation: Use an industrial vacuum with a HEPA filter to remove loose-fill insulation. Vacuum small sections at a time, and empty the vacuum into garbage bags frequently to prevent clogging.
    • Mineral Wool: Similar to fiberglass, cut batts into sections, roll them up, and bag them. Mineral wool can be more rigid, so handle with care.

  4. Vacuuming:

    • After removing the bulk of the insulation, vacuum the entire loft space to remove any remaining particles and dust. Pay special attention to corners and hard-to-reach areas.

  5. Disposal:

    • Follow local regulations for disposing of insulation materials. Some types of insulation require special disposal methods, especially if they contain hazardous materials.
    • Transport sealed bags to an appropriate disposal site.


  1. Preparation:

    • Inspect the Loft: Check for any damage to the loft structure, leaks, or issues that need addressing before installing new insulation.
    • Seal Gaps and Cracks: Use caulk or foam sealant to seal any gaps or cracks in the loft to prevent air leaks.

  2. Install New Insulation:

    • Fiberglass Batts or Rolls: Measure the space between joists and cut the insulation to fit. Lay the insulation between the joists, ensuring it fits snugly without compressing it. Add a second layer perpendicular to the first layer for additional coverage.
    • Blown-In Insulation: Use a blower machine to evenly distribute loose-fill insulation across the loft space. Ensure the insulation reaches the recommended depth for your area.
    • Spray Foam Insulation: Apply spray foam insulation using the appropriate equipment. Ensure even coverage and allow the foam to expand and cure according to the manufacturer's instructions.

  3. Finishing Touches:

    • Vapor Barrier: If required, install a vapor barrier over the insulation to prevent moisture buildup.
    • Loft Boards: If you plan to use the loft for storage, consider installing loft boards over the insulation. Ensure there is adequate ventilation and that the insulation is not compressed.

Safety Considerations

  • Health Risks: Insulation materials, especially older ones, can be harmful. Always use appropriate protective gear.
  • Asbestos: If you suspect asbestos, do not attempt DIY removal. Hire a professional to handle it.
  • Ventilation: Ensure the area is well-ventilated to reduce dust inhalation.


  • Local Regulations: Check with your local council for specific disposal guidelines.
  • Asbestos: If asbestos is present, it must be disposed of at a licensed facility.


  • Insulation Removal: Professional removal costs vary but generally range from £400 to £900 for an average-sized loft. DIY removal costs are primarily for protective gear and disposal fees.
  • Insulation Replacement: Costs depend on the type of insulation used. Fiberglass batts typically cost £15-£30 per square meter, while fibreglass rolls can cost £20-£60 per square meter.


Removing and replacing loft insulation can significantly improve your home's energy efficiency and comfort. By following this comprehensive guide and taking the necessary safety precautions, you can effectively remove old insulation and install new insulation. If the task seems too daunting or if there’s any risk of asbestos, don’t hesitate to hire professionals to ensure the job is done safely and correctly.

Latest 5 star Google customer reviews
Peter Roberts
2 months ago

I highly recommend these guys who recently helped us clear and clean out our loft in Newcastle after we had rodents in. They removed old junk and the old insulation then cleaned up the rodent droppings and hoovered the loft out. They were very friendly, made sure no dust and dirt got into our home and cleaned up after themselves. We are elderly people so we couldn't do this but they did everything in half a day. We tried all over to get someone to do the works for us but these guys were the only ones to come out and give us a qoute. Would use again if we ever have another rodent problem.

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alan young
2 months ago

Great job by these guys.
Emptied all the old insulation out of our loft.
Would highly recommend.

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Jackie Marie Townsend
22 days ago

We used this company a couple of days ago and are really impressed with the overall service provided. The lads were here almost 4 and a half hours completely clearing the loft and cleaning it afterwards. They used coverings on the stairs and landing to keep the carpet clean. Our loft looks like a new loft now and we didn't realise just how big it is with all the rubbish removed. Great set of lads, would highly recommend this company. 👍

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Louise McInnes
22 days ago

Fantastic service by the team of lads that came to remove my old insulation. They also removed old wood that was there at a very reasonable price and made sure there was no mess. Turned up when they said they would, very polite and professional. Would definitely recommend.

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We remove all types of loft insulation

  • Mineral Wool
  • Loose
  • Fibreglass
  • Sheep's Wool
  • Blown-In
  • Vermiculite
  • Cellulose
  • Spray Foam
  • Rodent Infested Insulation
  • Water Damaged
  • Verminous
  • Hazardous
  • Pest Control Loft Cleaning
  • Rodent/Pest/Pigeon Feces

Our post loft insulation removal cleaning services

Keeping your loft clean and organized is crucial for maintaining a healthy and efficient home environment. Our professional loft cleaning services are designed to address all your attic cleaning needs, ensuring a pristine and clutter-free space.

Our experienced team is committed to delivering top-notch service with meticulous attention to detail.

Here's what we offer:

Comprehensive Dust and Debris Removal: We thoroughly clean and remove dust, dirt, and debris, leaving your loft spotless.

Pest Infestation Cleanup: Our team handles pest infestations, removing nests and droppings to ensure a safe and sanitary loft.

Clutter Organization: We help sort and organize stored items, making your loft more functional and accessible.

Sanitization and Disinfection: We sanitize and disinfect surfaces to eliminate germs and allergens, promoting a healthier home.

Trust us to transform your loft into a clean, organized, and healthy space, enhancing the overall comfort and value of your home.