We sell a wide range of high quality insulation boards to help keep your home warm and energy efficient. Our selection of boards come in a range of different sizes and thicknesses to suit your needs, and we also offer a variety of different brands to choose from. Insulation board is an essential part of any home insulation project, so it's important to choose the right product for your needs. We also offer free delivery on all eligible orders, so you can be sure you are getting the best possible deal. So if you're looking for an insulation board that will help you save money on your energy bills, then be sure to check out our selection today.
We sell a wide range of high quality insulation boards to help keep your home warm and energy efficient. Our selection of boards come in a range of different sizes and thicknesses to suit your needs, and we also offer a variety of different brands to choose from. Insulation board is an essential part of any home insulation project, so it's important to choose the right product for your needs. We also offer free delivery on all eligible orders, so you can be sure you are getting the best possible deal. So if you're looking for an insulation board that will help you save money on your energy bills, then be sure to check out our selection today.
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Unilin Thin-R PIR 120mm x 2.4m x 1.2m
Vendor:UnilinUnilinFree Delivery over £350£420Regular price £49.49 £59.39Sale price £49.49 £59.39 Regular priceUnit price per£0.00 -
Unilin Thin-R PIR 130mm x 2.4m x 1.2m
Vendor:UnilinUnilinFree Delivery over £350£420Regular price £59.54 £71.45Sale price £59.54 £71.45 Regular priceUnit price per£0.00 -
Unilin Thin-R PIR 140mm x 2.4m x 1.2m
Vendor:UnilinUnilinFree Delivery over £350£420Regular price £60.08 £72.10Sale price £60.08 £72.10 Regular priceUnit price per£0.00 -
Unilin Thin-R PIR 150mm x 2.4m x 1.2m
Vendor:UnilinUnilinFree Delivery over £350£420Regular price £59.64 £71.57Sale price £59.64 £71.57 Regular priceUnit price per£0.00 -
Knauf Vapour Panel Foil Backed Plasterboard TE - 2.4m x 1.2m x 12.5mm
Vendor:KnaufStandardFree Delivery over £350£420Regular price £17.05 £20.46Sale price £17.05 £20.46 Regular priceUnit price per£0.00 -
Siniat Vapourshield 12.5mm x 1200 x 2400 Wallboard TE
Vendor:SiniatEssentialsFree Delivery over £250£300Regular price £17.10 £20.52Sale price £17.10 £20.52 Regular priceUnit price per£0.00 -
Thin-R Cavity 60mm
Vendor:UnilinUnilinFree Delivery over £350£420Regular price £0.00 £0.00Sale price £0.00 £0.00 Regular priceUnit price per£0.00 -
Unilin Thin-R PIR 25mm x 2.4m x 1.2m
Vendor:UnilinUnilinFree Delivery over £350£420Regular price £15.40 £18.48Sale price £15.40 £18.48 Regular priceUnit price per£0.00 -
Unilin Thin-R PIR 30mm x 2.4m x 1.2m
Vendor:UnilinUnilinFree Delivery over £350£420Regular price £18.02 £21.62Sale price £18.02 £21.62 Regular priceUnit price per£0.00 -
Gyproc Duplex 12.5mm x 1200 x 2400 Wallboard TE
Vendor:British GypsumStandardFree Delivery over £350£420Regular price £21.77 £26.12Sale price £21.77 £26.12 Regular priceUnit price per£0.00 -
OPTIM-R Roofing System
Vendor:KingspanStandardFree Delivery over £350£420POA -
Kingspan Kooltherm K106 90mm x 1.2m x 0.45m (2.16m2)
Vendor:KingspanStandardFree Delivery over £350£420Regular price £96.45 £115.74Sale price £96.45 £115.74 Regular priceUnit price per£0.00 -
Kingspan Kooltherm K112 Framing Board (All Sizes) - 2.4m x 1.2m
Vendor:KingspanfromStandardFree Delivery over £350£420Regular price £346.48 £415.78Sale price £346.48 £415.78 Regular priceUnit price per£0.00 -
Kingspan Kooltherm K107 Pitched Roof Board (All Sizes) - 2.4m x 1.2m
Vendor:KingspanfromStandardFree Delivery over £350£420Regular price £276.63 £331.96Sale price £276.63 £331.96 Regular priceUnit price per£0.00 -
Black Mountain Natuwool Batts 1200mm x 600mm x 150mm
Vendor:Black MountainStandardFree Delivery over £350£420Regular price £53.12 £63.74Sale price £53.12 £63.74 Regular priceUnit price per£0.00 -
Spacetherm Wallboard VCL (All Sizes) 2.4m x 1.2m
Vendor:ProctorfromProctorFree Delivery over £1,000£1,200Guide Price: £277.32 Guide Price: £332.78 -
Profloor Dynamic Deck 26 Hi-Load 26mm x 600mm x 2.4m
Vendor:ProctorProctorFree Delivery over £1,000£1,200Regular price £40.95 £49.14Sale price £40.95 £49.14 Regular priceUnit price per£0.00 -
Profloor Excel Deck 31 Hi-Load 31mm x 600mm x 2.4m
Vendor:ProctorProctorFree Delivery over £1,000£1,200Regular price £37.00 £44.40Sale price £37.00 £44.40 Regular priceUnit price per£0.00 -
Profloor Solo Deck 23 23mm x 600mm x 2.4m
Vendor:ProctorProctorFree Delivery over £1,000£1,200Regular price £35.20 £42.24Sale price £35.20 £42.24 Regular priceUnit price per£0.00 -
Profloor Micro Deck 17 Hi-Load 1.2m x 600mm x 17mm
Vendor:ProctorProctorFree Delivery over £1,000£1,200Regular price £21.01 £25.21Sale price £21.01 £25.21 Regular priceUnit price per£0.00 -
Karma Soundlay 9mm x 1200 x 1000mm
Vendor:KarmaRegular price £22.94 £27.53Sale price £22.94 £27.53 Regular priceUnit price per£0.00 -
Karma Easypanel 15mm x 1200mm x 800mm
Vendor:KarmaGuide Price: £34.05 Guide Price: £40.86 -
Karma Acoustic Barrier WB
Vendor:KarmafromRegular price £21.43 £25.72Sale price £21.43 £25.72 Regular priceUnit price per£0.00 -
Karma Soundlay Plus
Vendor:KarmafromRegular price £49.91 £59.89Sale price £49.91 £59.89 Regular priceUnit price per£0.00 -
Knauf OmniFit Slabs 35 (All Sizes)
Vendor:KnauffromStandardFree Delivery over £350£420Regular price £924.38 £1,109.26Sale price £924.38 £1,109.26 Regular priceUnit price per£0.00 -
Rockwool RWA45 (All Sizes)
Vendor:RockwoolfromStandardFree Delivery over £350£420Regular price £24.92 £29.90Sale price £24.92 £29.90 Regular priceUnit price per£0.00 -
Rockwool RW3 (All Sizes)
Vendor:RockwoolfromStandardFree Delivery over £350£420Regular price £402.45 £482.94Sale price £402.45 £482.94 Regular priceUnit price per£0.00 -
Rockwool Flexi-Slab - All Sizes
Vendor:RockwoolfromStandardFree Delivery over £350£420Regular price £40.07 £48.08Sale price £40.07 £48.08 Regular priceUnit price per£0.00 -
EPS 70 (All Sizes) 2400mm x 1200mm
Vendor:Build4lessfromRegular price £64.95 £77.94Sale price £64.95 £77.94 Regular priceUnit price per£0.00 -
Knauf DriTherm Cavity Slab 34 (All Sizes)
Vendor:KnauffromStandardFree Delivery over £350£420Regular price £1,493.63 £1,792.36Sale price £1,493.63 £1,792.36 Regular priceUnit price per£0.00 -
Knauf RS140 (600mm x 1200mm) - All Sizes
Vendor:KnauffromStandardFree Delivery over £350£420POA -
Knauf RS45 (All Sizes) 600mm x 1200mm
Vendor:KnauffromStandardFree Delivery over £350£420Regular price £33.71 £40.45Sale price £33.71 £40.45 Regular priceUnit price per£0.00 -
Knauf RS60 (600mm x 1200mm) - All Sizes
Vendor:KnauffromStandardFree Delivery over £350£420Regular price £431.34 £517.61Sale price £431.34 £517.61 Regular priceUnit price per£0.00 -
Knauf RS100 (600mm x 1200mm) - All Sizes
Vendor:KnauffromStandardFree Delivery over £350£420Regular price £674.60 £809.52Sale price £674.60 £809.52 Regular priceUnit price per£0.00 -
Knauf Dritherm Cavity Slab 37 (All Sizes) 1200mm x 455mm
Vendor:KnauffromStandardFree Delivery over £350£420Regular price £20.45 £24.54Sale price £20.45 £24.54 Regular priceUnit price per£0.00 -
Fire Stop Slab - All Sizes
Vendor:ARCfromARCFree Delivery over £450£540Regular price £278.76 £334.51Sale price £278.76 £334.51 Regular priceUnit price per£0.00
Board Insulation | Foam Board | Insulation Board
Welcome to the Insulation Board category at Build4Less, where we offer a diverse range of insulation solutions to meet your building needs. Our collection includes products from top brands like Celotex, Kingspan, Recticel, Danosa, and more, each designed for specific insulation purposes.
General Purpose Board Insulation
These boards, such as the Celotex GA4000, are versatile and can be used in various applications, including floors, walls, and roofs. They provide excellent thermal insulation and are available in multiple thicknesses to suit different requirements.
Insulated Plasterboards
Products like Celotex PL4000 combine insulation and plasterboard, offering a two-in-one solution for walls. They are ideal for dry lining and provide both thermal insulation and a ready-to-decorate surface.
PIR Board Insulation
These boards, including Mannok Therm and Celotex XR4000, are known for their high thermal efficiency. They are suitable for a range of applications, including underfloor heating systems, and come in various thicknesses for different insulation levels.
Thermal Bridging Boards
Options like Celotex TB4000 are designed to address thermal bridging, improving energy efficiency in the window reveals and floor edges.
Specialty Insulation Boards
- For Roofs: Products like Kingspan Thermapitch TP10 are tailored for pitched roofs, providing high thermal performance.
- For Floors: Kingspan Thermafloor TF70 is ideal for floor insulation, offering moisture resistance and load-bearing capacity.
XPS Insulation: Danosa Danopren TR and Warmline XPS, made from extruded polystyrene, provide excellent moisture resistance and are suitable for basements and areas prone to dampness.
Cavity Wall Insulation
Boards such as Celotex CW4000 are designed for cavity wall applications, helping to reduce heat loss through walls.
Eco-Friendly Options
Products like Greenguard GG300 and Eco-versal prioritise environmental sustainability without compromising insulation quality.
Specialized Applications
- Rainscreen Boards: Kingspan Kooltherm K15 is an example of insulation designed for rainscreen cladding systems.
Flat Roof Boards: Kingspan Thermaroof series offers solutions specifically for flat roofs.
Choosing the Right Foam Board Insulation
Selecting the correct insulation board depends on several factors:
- Thermal Requirements: Higher R-values mean better insulation properties, which is crucial for minimizing heat loss.
- Space and Depth Availability: Some boards are thicker yet offer higher insulation, such as Celotex XR4000, which is suitable for areas where space is not an issue.
- Moisture Exposure: In damp areas, opt for moisture-resistant boards like XPS or specific PIR boards designed for damp conditions.
- Fire Performance: Consider the fire resistance of the insulation if installing in sensitive areas like escape routes or kitchens.
Our range at Build4Less ensures that you'll find the perfect insulation board solution for your project, whether it's a simple renovation or a complex new build.
Rated Excellent



