Suspended Floor Insulation


- Versatile Celotex GA4000 insulation boards for floors, walls, and roofs.
- Low emissivity foil face enhances thermal performance.
- Environmentally friendly, durable, lightweight, and easy to install with class 1 fire rating.
- Regular price
- £13.40
- Sale price
- £13.40
Was £0.00Sold out


- Regular price
- £20.58
- Sale price
- £20.58
Was £0.00Sold out


- Regular price
- £34.79
- Sale price
- £34.79
Was £0.00Sold out


- Regular price
- £13.40
- Sale price
- £13.40
Was £0.00Sold out


- Regular price
- £28.38
- Sale price
- £28.38
Was £0.00Sold out


- Durable Celotex TB4000 Insulation Board
- Exceptional thermal conductivity (0.022W/mK)
- Cost-effective, strong, easy to install, and long-lasting
- Regular price
- £13.40
- Sale price
- £13.40
Was £0.00Sold out


- Regular price
- £43.08
- Sale price
- £43.08
Was £0.00Sold out


- Environmental-friendly PIR insulation board with foil facings
- High thermal conductivity (0.022W/mK) eliminates cold spots, reduces energy usage, and lowers bills
- Certified with A+ rating, BBA certificates, and meets Building Regulations; easy to install, strong, and long-lasting
- Regular price
- £43.08
- Sale price
- £43.08
Was £0.00Sold out


- Regular price
- £19.80
- Sale price
- £19.80
Was £0.00Sold out


- Eurothane® GP is a high performance, lightweight PIR insulation board, easy to cut, handle, and install for various applications like floors, pitched roofs, internal walls, ceilings, and lofts.
- It is highly favored by contractors and installers for its excellent thermal performance with a λ value of 0.022 W/mK.
- The product ensures a quick and easy installation process, making it an ideal insulation solution.
- Regular price
- £13.40
- Sale price
- £13.40
Was £0.00Sold out


- Economical, lightweight, and durable PIR insulation board.
- Features low emissivity foil for enhanced thermal conductivity.
- Environmentally safe, fire and water-resistant with long-term performance.
- Regular price
- £28.91
- Sale price
- £28.91
Was £0.00Sold out

- Regular price
- £53.94
- Sale price
- £53.94
Was £0.00Sold out


- Easy to install in various applications.
- Thick PIR board with high thermal performance.
- Manufactured with low emission standards.
- Regular price
- £53.88
- Sale price
- £53.88
Was £0.00Sold out


- Regular price
- £26.76
- Sale price
- £26.76
Was £0.00Sold out


- Celotex GA4090: 90mm PIR insulation board
- Thermal conductivity: 0.022W/mK
- Eco-friendly, complies with regulations, trusted for 9 decades
- Regular price
- £35.58
- Sale price
- £35.58
Was £0.00Sold out


- Cost-effective Celotex TB4030 PIR insulation board
- Lightweight, easy installation, high tensile strength
- Fire and water-resistant, eco-friendly, long-lasting insulation for walls, roofs, and floors
- Regular price
- £15.96
- Sale price
- £15.96
Was £0.00Sold out


- Maximize Energy Efficiency: Thermal conductivity of 0.022 W/mK for reduced heat loss and lower bills.
- Compatibility with Underfloor Heating: Seamless integration for comfort and luxury without compromise.
- Cost Savings & Versatility: Lightweight, easy installation, and suitable for various floor types.
- Regular price
- £128.34
- Sale price
- £128.34
Was £0.00Sold out


- Regular price
- £32.94
- Sale price
- £32.94
Was £0.00Sold out

- Lightweight PIR insulation board
- High thermal performance & strength
- Eco-friendly, water-resistant, easy to cut
- Regular price
- £13.40
- Sale price
- £13.40
Was £0.00Sold out

- Thermal conductivity: 0.033 W/mK
- Environmental: CFC, HCFC, HFC-free
- Certifications: UNE-EN 13164, EN ISO 9001
- Regular price
- £52.08
- Sale price
- £52.08
Was £0.00Sold out

- Regular price
- £89.88
- Sale price
- £89.88
Was £0.00Sold out


- High-Performance Insulation: PIR composition, 0.022W/mK thermal conductivity.
- Environmentally Friendly: Zero ODP, low global warming impact.
- Versatile & Certified: Eliminates cold spots, meets Building Regulations, and offers energy savings.
- Regular price
- £0.00
- Sale price
- £0.00
Was £0.00Sold out


- All-in-one Eco-versal Insulation Board for thermal conductivity (0.022 W/mK)
- Rigid PIR core with aluminum composite foil facing, perfect for roofs, walls, and floors
- Lightweight, easy to cut, and install compared to some other commonly used insulants; offers warmth and durability
- Regular price
- £13.40
- Sale price
- £13.40
Was £0.00Sold out


- Cut-to-fit for rafters/joists
- High thermal performance
- Environmentally friendly
- Regular price
- £53.94
- Sale price
- £53.94
Was £0.00Sold out


- Premium lower lambda insulation: Kingspan Kooltherm K103 Floorboard enhances flooring performance with fibre-free phenolic core.
- Durable construction: Glass tissue facings, autohesively bonded, ensure lasting quality and ease of installation.
- Trusted quality: Manufactured underquality standards for safety and reliability.
- Regular price
- £342.00
- Sale price
- £342.00
Was £0.00Sold out


- Regular price
- £15.26
- Sale price
- £15.26
Was £0.00Sold out

- The Superfoil SFBA MP is a high-quality, lightweight foil insulation roll with a coverage area of 37.5m², excellent tensile strength, and superior water resistance.
- Constructed from 2 Aluminium Metalized PET layers and 1 layer of air bubble, it offers robust insulation performance and durability.
- It has a Class E fire rating when installed behind plasterboard, ensuring safety along with high performance.
- Regular price
- £93.48
- Sale price
- £93.48
Was £0.00Sold out

- Superfoil General Purpose Wrap is a lightweight, durable insulation material with dimensions of 7m x 1m x 3mm, made from 2 Aluminium Metalized PET Layers and 1 layer Air Bubble for optimal thermal performance.
- It boasts impressive tensile properties and resistance to tearing, excellent water vapour resistance and a resistance to water penetration rating of W1, ensuring durability and protection against moisture and water damage.
- The product offers a thermal resistance of 0.12 R Value for effective insulation and energy efficiency, and has a fire rating of Class E when installed behind plasterboard for added safety.
- Regular price
- £29.88
- Sale price
- £29.88
Was £0.00Sold out


- Premium 130mm Celotex XR4130 insulation
- Polyisocyanurate (PIR) for eco-friendly high performance
- Cost-effective, BBA certified, A+ rating, meets Building Regulations
- Regular price
- £52.74
- Sale price
- £52.74
Was £0.00Sold out

- The SuperFOIL SFUF is a durable, high-quality insulation product with excellent tensile properties, resistance to water and tearing, and a coverage area of 12m².
- It offers superior thermal performance with a thermal resistance of 0.8 R Value, a fire rating of Class E, and can withstand damp and humid conditions effectively.
- Despite its robust performance, it is easy to install, making it suitable for a wide range of demanding insulation applications.
- Regular price
- £115.74
- Sale price
- £115.74
Was £0.00Sold out

- The Superfoil SF19 Plus is a high-quality, durable insulation product with superior thermal resistance, excellent tensile properties, and resistance to tearing.
- It offers effective resistance to water penetration and vapour, making it ideal for areas prone to moisture or dampness, and has a high thermal resistance with a 1.63 R value.
- The product also boasts a fire rating of Class E (behind plasterboard), adding an extra layer of safety to building projects.
- Regular price
- £121.38
- Sale price
- £121.38
Was £0.00Sold out


- Cost-effective, high-performance insulation board
- Thermal conductivity of 0.022W/mK, suitable for various applications
- Environmentally friendly with zero ozone depletion potential
- Regular price
- £46.20
- Sale price
- £46.20
Was £0.00Sold out


- 165mm Celotex XR4000 PIR insulation board
- Achieves A+ rating, low U-values, and BBA certifications
- Easy installation, cost-effective, long-lasting thermal performance
- Regular price
- £933.60
- Sale price
- £933.60
Was £0.00Sold out

- The Superfoil SF40 65mm x 1.5m x 10m is a high-performance insulation product by Superfoil, composed of multiple layers of foil and loft quilt, offering superior thermal resistance and durability.
- Despite its large coverage area of 15m², it is lightweight at 15kg and has impressive tensile properties, water vapour resistance, and resistance to water penetration and tearing.
- It is rated Class E for fire resistance, making it a safe and reliable choice for various construction projects.
- Regular price
- £239.99
- Sale price
- £239.99
Was £0.00Sold out

- Superfoil SF6 is a high-quality, lightweight insulation material with superior thermal resistance, excellent tensile properties, and resistance to water penetration.
- It is constructed from a unique combination of materials, including mesh reinforced foil laminated outer layers, aluminium coated reflective foil PET layer, thermo foam separation layer, and loft quilt layers.
- With a fire rating of Class E (behind plasterboard), it is a safe choice for insulation needs, providing a sleek and professional finish to projects.
- Regular price
- £90.30
- Sale price
- £90.30
Was £0.00Sold out


- High-performance Celotex XR4200 insulation board
- Low global warming impact, zero ozone depletion
- Superb thermal conductivity, easy installation
- Regular price
- £1,122.48
- Sale price
- £1,122.48
Was £0.00Sold out

- Composite insulation board for warm flat roof decks
- PIR foam core with aluminum facings and 6mm WPB plywood layer
- Provides strength, rigidity, and minimal thickness for easy installation in new or refurbishment projects.
- Regular price
- £1,540.00
- Sale price
- £1,540.00
Was £0.00Sold out

- 3-in-1: Vapour control, Radiant Barrier, Foil Insulation
- DIBT & CE Certified; Fire-resistant, Water-tight
- For Roof, Wall, Floor; High Thermal Resistance; Easy Install
- Regular price
- £269.94
- Sale price
- £269.94
Was £0.00Sold out

- Regular price
- £59.87
- Sale price
- £59.87
Was £0.00Sold out

- Regular price
- £95.82
- Sale price
- £95.82
Was £0.00Sold out

- Regular price
- £59.54
- Sale price
- £59.54
Was £0.00Sold out

- Regular price
- £101.94
- Sale price
- £101.94
Was £0.00Sold out

- Regular price
- £12.67
- Sale price
- £12.67
Was £0.00Sold out

- SuperFOIL SFNC is a high-quality, multi-layer insulation product offering superior thermal and acoustic performance, ideal for various building applications.
- It is easy to install, fits in minimal space, and is resistant to water and vapour, making it a versatile and practical choice for both new builds and renovations.
- Using this product can improve the insulation of properties, reduce energy costs, and create a more comfortable and quieter environment.
- Regular price
- £385.46
- Sale price
- £385.46
Was £0.00Sold out


- Eurowall® + is a high-performance thermal insulation board made of rigid polyisocyanurate PIR foam and faced with a gas diffusion tight multilayer foil.
- It features precision cut tongue and groove joints on all sides for minimized heat loss and increased protection against wind and rain.
- Designed with a 10mm cavity requirement, it allows space for conventional bricklaying techniques.
- Regular price
- £626.87
- Sale price
- £626.87
Was £0.00Sold out
Suspended Timber Floor Insulation
The main reason for installing thermal insulation under your floors is to prevent heat loss from gaps between the floorboards.
Installing insulation under your floors is a great step towards having full control over your home's temperature. It is a quick way of transforming your home into a more comfortable atmosphere with a balance of temperature. This is done by fixing insulation between the joists beneath your floors, and this can apply for both renovation projects and new houses. Especially in colder areas, it is essential to keep your homes warm and preserve the heat within. Insulation comes in many thicknesses, to achieve the optimum results it is important that you first figure out the right thickness of insulation needed to meet your desired U-value.
Why install suspended Floor insulation?
Condensation build up and damping can result in damaged floors/ rotten furniture over time. Suspended Floor Insulation allows you take control of heat transfer and prevent condensation build up. This will keep your home in tip-top condition and prevent any nasty experiences with condensation/ damping.
Suspended floor insulation is very useful in strengthening the foundation of your floors as they add support between joists meaning you should expect a sturdier floor in the long run.
The major reason for installing thermal insulation under your suspended floors is to prevent heat loss from gaps within the houses shell. You will immediately notice a more cosy and balanced room temperature once you have installed suspended floor insulation.
There are many ways to install them and various materials to work on. The materials that can be used for Suspended floor Insulation-
• PIR thermal Insulation board (Kingspan /Celotex). Thicknesses of 50mm and 100mm are among the most common thicknesses chosen however we here at insulation4less aim to give you the widest range of options possible.
• Mineral Wool Insulation in slab form (Rolls or batts).
• Hemp and sheep wool are great natural materials for floors.
These suspended floor insulations are a very cost effective and have great uses even with protection against sound. They work as a shield against noise, blocking it from entering your home from beneath your floors.
Things to keep in mind before Installing above the floor joists-
• The floorboards must be installed before insulating the floor.
• You must cut the installation boards according to the required size so that they can easily fit.
• You must use galvanized steel saddle clips, nails and softwood timber battens.
• Make sure that the thickness of these boards according to the joists is placed accordingly.
Things to keep in mind before installing below floor joists-
• The floorboards have to be placed over joists before you can fit the insulation boards from below.
• The insulation boards need to fit tightly over the joist so that there are no chances of air gaps.
Fireproofing – Insulation in general helps prevent fire within the home. Suspended floor insulation is no different, it is a great step towards home fire safety. The risk of short circuits within the home is a very serious issue. Short circuits can ignite a fire within your home that can spread quickly. Choosing the right type of insulation will prevent this from taking place.
A Little Bit About Suspended Timber Floors
Timber floors are ideal in areas that tend to have frequently fluctuating weather conditions. Timer is very cost effective and commonly used by builders. Timber flooring combined with high quality insulation can help reduce carbon footprint and CO2 content in the air as well. Electricity bills will immediately decrease as a result of well insulated timber flooring.
If you are looking for high quality suspended floor insulation, then Insulation4less is the best option for you. We have all kinds of insulators available and for very affordable prices. Our company has maintained its reputation in the market, providing quality services and products to its customers. Insulation4Less have a support team eager and waiting to help you with any inquiries. Do not hesitate to get in touch!