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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OPTIM-R Roofing System
Vendor:KingspanStandardFree Delivery over £380£456POA -
Kingspan Kooltherm K106 90mm x 1.2m x 0.45m (2.16m2)
Vendor:KingspanStandardFree Delivery over £380£456Regular 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 £380£456Regular 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 £380£456Regular 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 £380£456Regular price £53.12 £63.74Sale price £53.12 £63.74 Regular priceUnit price per£0.00 -
Spacetherm A Rated Wallboard with VCL 2400mm x 1200mm - All Sizes
Vendor:ProctorfromProctorFree Delivery over £1,000£1,200Regular price £279.02 £334.82Sale price £279.02 £334.82 Regular priceUnit price per£0.00 -
Profloor Dynamic Deck 26 Hi-Load 26mm x 600mm x 2.4m
Vendor:ProctorProctorFree Delivery over £1,000£1,200Regular price £40.17 £48.20Sale price £40.17 £48.20 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 £41.14 £49.37Sale price £41.14 £49.37 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 £32.74 £39.29Sale price £32.74 £39.29 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 £20.56 £24.67Sale price £20.56 £24.67 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 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 £380£456Regular 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 £380£456Regular price £23.40 £28.08Sale price £23.40 £28.08 Regular priceUnit price per£0.00 -
Rockwool RW3 (All Sizes)
Vendor:RockwoolfromStandardFree Delivery over £380£456Regular 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 £380£456Regular price £38.99 £46.79Sale price £38.99 £46.79 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 £380£456Regular 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 £380£456POA -
Knauf RS45 (All Sizes) 600mm x 1200mm
Vendor:KnauffromStandardFree Delivery over £380£456Regular 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 £380£456Regular 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 £380£456Regular 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 £380£456Regular 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 -
Fire Stop Full Slab - 100 x 600 x 1200mm
Vendor:ARCARCFree Delivery over £450£540Regular price £63.41 £76.09Sale price £63.41 £76.09 Regular priceUnit price per£0.00 -
Karma Overlay 2400mm x 600mm - All Sizes
Vendor:KarmafromRegular price £36.59 £43.91Sale price £36.59 £43.91 Regular priceUnit price per£0.00 -
Danosa 75mm XPS Concrete Slab Grey - 500mm x 500mm
Vendor:DanosaDanosa XPSFree Delivery over £2,000£2,400Regular price £12.41 £14.89Sale price £12.41 £14.89 Regular priceUnit price per£0.00 -
Kingspan Kooltherm K103 Floorboard (All Sizes) 2400mm x 1200mm
Vendor:KingspanfromStandardFree Delivery over £380£456Regular price £321.31 £385.57Sale price £321.31 £385.57 Regular priceUnit price per£0.00 -
Ballytherm 2.4m x 1.2m All Sizes
Vendor:BallythermfromStandardFree Delivery over £380£456Regular price £16.20 £19.44Sale price £16.20 £19.44 Regular priceUnit price per£0.00 -
Kingspan Kooltherm K108 Cavity Board (All Sizes) 1200mm x 450mm
Vendor:KingspanfromStandardFree Delivery over £380£456Regular price £110.94 £133.13Sale price £110.94 £133.13 Regular priceUnit price per£0.00 -
Isover Batt - CWS 32 (All Sizes) 1.2m x 0.45m
Vendor:IsoverfromStandardFree Delivery over £380£456Regular price £645.69 £774.83Sale price £645.69 £774.83 Regular priceUnit price per£0.00 -
Ballytherm cavity 0.45m x 1.2m All Sizes
Vendor:BallythermfromStandardFree Delivery over £380£456Regular price £58.06 £69.67Sale price £58.06 £69.67 Regular priceUnit price per£0.00 -
Kingspan Kooltherm K118 Insulated Plasterboard (All Sizes) 2.4m x 1.2m (Price Per Pallet)
Vendor:KingspanfromStandardFree Delivery over £380£456Regular price £1,113.49 £1,336.19Sale price £1,113.49 £1,336.19 Regular priceUnit price per£0.00 -
Gyproc Thermaline Basic 1.2m x 2.4m - All Sizes (Price Per Pallet)
Vendor:British GypsumfromStandardFree Delivery over £380£456Regular price £897.37 £1,076.84Sale price £897.37 £1,076.84 Regular priceUnit price per£0.00 -
Gyproc Thermaline Plus (2.4m x 1.2m) All Sizes (Price Per Pallet)
Vendor:British GypsumfromStandardFree Delivery over £380£456Regular price £1,352.12 £1,622.54Sale price £1,352.12 £1,622.54 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



