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Understanding The Different Types Of Loft Insulation

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The Different Types Of Loft Insulation: A Comprehensive Guide

Loft insulation is an essential component for maintaining a home's energy efficiency. By reducing heat loss, it helps in lowering energy bills and creating a comfortable living environment. In the UK, there are various types of loft insulation available, each with its unique properties, advantages, and disadvantages. This guide explores the different types of loft insulation in detail, including fibreglass insulation, blown-in insulation, natural material insulation, spray foam insulation, and recycled loft insulation.

1. Fibreglass Insulation


Fibreglass insulation is one of the most common and widely used types of loft insulation. Made from fine glass fibers, it is available in rolls (batts) or loose-fill form.


  • Cost-Effective: One of the cheapest insulation options.
  • Non-Combustible: Provides a level of fire resistance.
  • Sound Absorption: Helps in reducing noise transmission.
  • Easy Installation: Can be installed by DIY enthusiasts.


  • Irritation: Can cause skin, eye, and respiratory irritation; protective gear is required during installation.
  • Performance Degradation: Can lose effectiveness if it becomes wet or compressed.
  • Environmental Impact: Production involves significant energy consumption.

Average Costs

  • Material Cost: £3 - £5 per square meter.
  • Installation Cost: £200 - £300 for a typical loft (DIY can reduce costs).

2. Blown-In Insulation


Blown-in insulation, also known as loose-fill insulation, involves blowing loose particles of insulation into the loft space. Materials used include cellulose, fibreglass, or mineral wool.


  • Effective Coverage: Fills gaps and voids effectively, providing uniform coverage.
  • Quick Installation: Professional installation can be completed quickly.
  • Good for Irregular Spaces: Ideal for lofts with many obstructions.


  • Settling: Can settle over time, reducing insulation effectiveness.
  • Professional Installation: Requires special equipment and professional installation.
  • Dust Generation: Can create dust during installation, requiring proper ventilation.

Average Costs

  • Material Cost: £5 - £7 per square meter.
  • Installation Cost: £300 - £500 for a typical loft.

3. Natural Material Insulation


Natural material insulation includes options such as sheep’s wool, cotton (denim), and hemp. These eco-friendly materials are gaining popularity for their sustainability and performance.


  • Eco-Friendly: Made from renewable resources and often recyclable.
  • Non-Irritating: Safe to handle, does not cause skin or respiratory irritation.
  • Moisture Regulation: Naturally regulates moisture, reducing the risk of condensation and mold.


  • Cost: Generally more expensive than traditional insulation materials.
  • Fire Resistance: May require additional treatments to improve fire resistance.
  • Availability: May not be as widely available as other insulation types.

Average Costs

  • Material Cost: £10 - £15 per square meter.
  • Installation Cost: £400 - £600 for a typical loft.

4. Spray Foam Insulation


Spray foam insulation is a versatile and high-performance option that involves spraying a liquid foam, which expands and hardens to form an insulating layer. There are two types: open-cell and closed-cell foam.


  • High R-Value: Provides excellent thermal resistance.
  • Air Seal: Creates an airtight seal, reducing drafts and improving energy efficiency.
  • Durability: Long-lasting and resistant to water damage and mold.


  • Cost: One of the more expensive insulation options.
  • Professional Installation: Requires professional installation and specialized equipment.
  • Off-Gassing: Can release volatile organic compounds (VOCs) during application and curing.

Average Costs

  • Material Cost: £20 - £30 per square meter.
  • Installation Cost: £1,000 - £2,000 for a typical loft.

5. Recycled Loft Insulation


Recycled loft insulation uses materials such as recycled denim, plastic bottles, and other post-consumer waste. It is an environmentally friendly option that helps reduce landfill waste.


  • Sustainable: Reduces waste and conserves natural resources.
  • Non-Toxic: Safe to handle and free from harmful chemicals.
  • Good Thermal Performance: Offers good insulation properties.


  • Cost: Can be more expensive due to the recycling process.
  • Availability: May not be as readily available as traditional materials.
  • Fire Resistance: May need additional treatments to meet fire safety standards.

Average Costs

  • Material Cost: £8 - £12 per square meter.
  • Installation Cost: £300 - £500 for a typical loft.


Choosing the right loft insulation depends on various factors, including budget, environmental impact, ease of installation, and specific needs of the home. Here’s a quick comparison of the types discussed:

  • Fibreglass Insulation: Affordable and easy to install, but can cause irritation.
  • Blown-In Insulation: Provides good coverage for irregular spaces, but may settle over time.
  • Natural Material Insulation: Eco-friendly and non-irritating, but more expensive.
  • Spray Foam Insulation: High-performance with excellent air sealing, but costly and requires professional installation.
  • Recycled Loft Insulation: Sustainable and non-toxic, but may have higher costs and availability issues.

By understanding the pros and cons of each type, homeowners can make informed decisions that best suit their insulation needs, ensuring a comfortable and energy-efficient home.

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
1 month 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
1 month 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.