PIR Insulation
Pipe Insulation
Insulation 50mm
Slab Insulation
Cheap Insulation
Glass Wool
Insulation Roll
Vapour Control Layer
Acoustic Insulation
Aerogel Insulation
Cavity Barrier
Cavity Closers
Cavity Wall Insulation
Flat Roof Insulation
Floor Insulation
Foil Insulation
Insulation
Insulation Accessories
Insulation Fixings
Insulation Board
Loft Insulation
Multifoil Insulation
Party Wall Slab
Polystyrene Insulation (EPS)
Roof Insulation
Sheep Wool Insulation
Wall Insulation
-
Kingspan Kooltherm K108 Cavity Board (All Sizes) 1200mm x 450mm
Vendor:KingspanfromStandardFree Delivery over £350£420Regular price £118.10 £141.72Sale price £118.10 £141.72 Regular priceUnit price per£0.00 -
Tubolit Polyethylene Pipe Insulation - All Sizes
Vendor:TubolitfromTubolitFree Delivery over £350£420Regular price £85.33 £102.40Sale price £85.33 £102.40 Regular priceUnit price per£0.00 -
Armaflex Evo Pipe Insulation UN-SLIT - All Sizes
Vendor:ArmaflexfromArmaflexFree Delivery over £350£420Regular price £163.88 £196.66Sale price £163.88 £196.66 Regular priceUnit price per£0.00 -
Forgefix Loft Lid Downlight Protector 220mm x 160mm x 150mm (Box of 30)
Vendor:ForgefixForgefixFree Delivery over £80£96Regular price £179.92 £215.90Sale price £179.92 £215.90 Regular priceUnit price per£225.00£270.00Sale -
Pipe Inuslation Tape 3mm x 50mm x 15m
Vendor:RubaflexRubaflexFree Delivery over £350£420Regular price £42.57 £51.08Sale price £42.57 £51.08 Regular priceUnit price per£0.00 -
Steico Special Dry Wood Fibre Sarking/Sheathing Board - All Sizes
Vendor:SteicofromRegular price £24.94 £29.93Sale price £24.94 £29.93 Regular priceUnit price per£0.00 -
Novia VC4000 FR Reflective Vapour Control Layer - 1.5m x 50m
Vendor:NoviaNovia RollsFree Delivery over £1,100£1,320Regular price £189.75 £227.70Sale price £189.75 £227.70 Regular priceUnit price per£0.00 -
Cold Water Circular Tank - 40mm Lagging Jacket - All Sizes
Vendor:DavantfromDavantFree Delivery over £350£420Regular price £15.67 £18.80Sale price £15.67 £18.80 Regular priceUnit price per£0.00 -
Insulation Jacket for Cold Water Coffin Tank - All Sizes
Vendor:DavantfromDavantFree Delivery over £350£420Regular price £30.94 £37.13Sale price £30.94 £37.13 Regular priceUnit price per£0.00 -
15-22mm Pipe Lagging - All Sizes
Vendor:CelafeltfromCelafeltFree Delivery over £250£300Regular price £209.62 £251.54Sale price £209.62 £251.54 Regular priceUnit price per£0.00 -
PE Tape 3mm x 50mm x 10m Grey
Vendor:DavantDavantFree Delivery over £350£420Regular price £39.99 £47.99Sale price £39.99 £47.99 Regular priceUnit price per£0.00 -
KlasseClad Silver Embossed Foil Barrier Jacketing System x 50m
Vendor:KlasseRegular price £316.44 £379.73Sale price £316.44 £379.73 Regular priceUnit price per£0.00 -
VC200 Reflective Air Leakage & Vapour Control Layer 1.5m x 50m (75m2 Roll)
Vendor:NoviaNovia RollsFree Delivery over £1,100£1,320Regular price £86.20 £103.44Sale price £86.20 £103.44 Regular priceUnit price per£0.00 -
Single Sided Breather Membrane Lap Tape 50mm x 25m
Vendor:NoviaRegular price £17.32 £20.78Sale price £17.32 £20.78 Regular priceUnit price per£0.00 -
Danosa Fonodan 50 Auto Adhesive Tape - 10m x 0.05m
Vendor:DanosaRegular price £8.20 £9.84Sale price £8.20 £9.84 Regular priceUnit price per£0.00 -
Danosa Impactodan 5 Polyethylene Foam Sheet
Vendor:DanosafromRegular price £27.89 £33.47Sale price £27.89 £33.47 Regular priceUnit price per£0.00 -
4.5mm Insulation Supports (100 fixings per pack) - All Sizes
Vendor:Build4lessfromRegular price £0.00 £0.00Sale price £0.00 £0.00 Regular priceUnit price per£0.00 -
Wraptite FZ Membrane - All Sizes
Vendor:ProctorfromProctorFree Delivery over £1,000£1,200Regular price £89.95 £107.94Sale price £89.95 £107.94 Regular priceUnit price per£0.00 -
Expansion Joint Foam Strips (2m Strip - 20m Pack) - All Sizes
Vendor:Euro AccessoriesfromRegular price £10.57 £12.68Sale price £10.57 £12.68 Regular priceUnit price per£0.00 -
Probond RG Tape - 15mm x 22.5m Roll
Vendor:ProctorProctorFree Delivery over £1,000£1,200Regular price £9.20 £11.04Sale price £9.20 £11.04 Regular priceUnit price per£0.00 -
Actis Boost'R Hybrid 10m x 1.5m Reflective Breather Membrane
Vendor:ActisStandardFree Delivery over £350£420Regular price £151.43 £181.72Sale price £151.43 £181.72 Regular priceUnit price per£0.00 -
Steico Universal Wood Fibre Sarking/Sheathing Board - All Sizes
Vendor:SteicofromRegular price £11.36 £13.63Sale price £11.36 £13.63 Regular priceUnit price per£0.00 -
Wooden Slat Acoustic Wall Panel 2400mm x 600mm x 21mm - All Colours
Vendor:The Wood Wall Panel CompanyfromRegular price £42.95 £51.54Sale price £42.95 £51.54 Regular priceUnit price per£66.50£79.80Sale -
Armaflex Evo Pipe Insulation SLIT - All Sizes
Vendor:ArmaflexfromArmaflexFree Delivery over £350£420Regular price £183.58 £220.30Sale price £183.58 £220.30 Regular priceUnit price per£0.00 -
Pipe Insulation Lagging Tape 3mm x 50mm x 15m
Vendor:ArmaflexArmaflexFree Delivery over £350£420Regular price £83.58 £100.30Sale price £83.58 £100.30 Regular priceUnit price per£0.00 -
Wooden Slat Acoustic Wall Panel Sample Box
Vendor:The Wood Wall Panel CompanyfromWood Wall Panel Company SampleFree DeliveryRegular price £4.00 £4.80Sale price £4.00 £4.80 Regular priceUnit price per£0.00 -
Danosa Overlap Tape 3mm x 70mm x 2.5m
Vendor:DanosaRegular price £11.68 £14.02Sale price £11.68 £14.02 Regular priceUnit price per£0.00 -
Danosa Fonodan 70 Auto Adhesive Tape - 10m x 0.07m
Vendor:DanosaRegular price £12.20 £14.64Sale price £12.20 £14.64 Regular priceUnit price per£0.00 -
Danosa Impactodan 10 Polyethylene Foam Sheet - 25m x 2m
Vendor:DanosaRegular price £147.32 £176.78Sale price £147.32 £176.78 Regular priceUnit price per£0.00 -
Danosa MAD6 Self Adhesive Acoustic Bituminous Membrane - 4.5m x 1m
Vendor:DanosaRegular price £45.30 £54.36Sale price £45.30 £54.36 Regular priceUnit price per£0.00 -
Hot Water Cylinder Combination Full Cover Lagging Jacket - All Sizes
Vendor:DavantfromDavantFree Delivery over £350£420Regular price £44.07 £52.88Sale price £44.07 £52.88 Regular priceUnit price per£0.00 -
Hot Water Cylinder Lagging Jacket - Hot Portion Only Jacket - All Sizes
Vendor:DavantfromDavantFree Delivery over £350£420Regular price £26.78 £32.14Sale price £26.78 £32.14 Regular priceUnit price per£0.00 -
Cold Water Circular Tank - Super Snug 80mm Lagging Jacket - All Sizes
Vendor:DavantfromDavantFree Delivery over £350£420Regular price £31.16 £37.39Sale price £31.16 £37.39 Regular priceUnit price per£0.00 -
28mm Pipe Lagging - All Sizes
Vendor:CelafeltfromCelafeltFree Delivery over £250£300Regular price £144.68 £173.62Sale price £144.68 £173.62 Regular priceUnit price per£0.00 -
IKO Hyload Insulated DPC - All Sizes
Vendor:IKOfromIkoFree Delivery over £450£540Regular price £135.86 £163.03Sale price £135.86 £163.03 Regular priceUnit price per£0.00 -
Ejot Insulation Support Anchors DMH 8 (Box of 100)
Vendor:EjotfromRegular price £33.73 £40.48Sale price £33.73 £40.48 Regular priceUnit price per£0.00
Insulation | Insulation Materials | Building Supplies
Insulation
Insulation plays a vital role in improving energy efficiency, reducing heat loss, and creating a more comfortable indoor environment throughout the year. At Build4Less, you can explore a wide range of insulation products, including loft insulation, wall insulation, floor insulation, acoustic insulation, and insulation boards suitable for both residential and commercial projects. Our insulation solutions are designed to help lower energy bills, improve thermal performance, and support modern building regulations while delivering long-lasting reliability and performance.
What is Insulation?
Insulation refers to budget-friendly insulation materials that meet standard building performance requirements without the premium price tag. These products are ideal for projects where cost efficiency is a priority, while still ensuring compliance with UK building regulations.
Typically used in walls, lofts, floors, and roofs, Insulation products provide effective thermal resistance and help minimise heat loss throughout your property.
Benefits of Insulation
- Cost-Effective Solution
Perfect for large-scale projects or budget-conscious builds without compromising performance. - Improved Energy Efficiency
Helps reduce heat loss, lowering energy bills and improving overall building performance. - Versatile Applications
Suitable for lofts, cavity walls, floors, and general insulation needs. - Easy Installation
Designed for quick and straightforward fitting, saving time on-site. - Reliable Thermal Performance
Meets standard insulation requirements for everyday construction projects.
Roof and Wall Insulation Panels
Composite Insulated Roof Panels
These panels, like the 333 Box Profile Composite, are ideal for roofing applications, offering excellent thermal performance and ease of installation. They come in various sizes and are suitable for both residential and commercial buildings.
General Purpose Insulation Boards
Products like Celotex GA4000 and Mannok Therm PIR boards are versatile and can be used in floors, walls, and roofs. These rigid boards provide high insulation values and are available in various thicknesses to meet different requirements.
Insulated Plasterboard
Insulated plasterboards, such as Celotex PL4000 and Kingspan Kooltherm, combine insulation and plasterboard, making them perfect for internal wall applications. They provide thermal insulation and a ready-to-decorate surface.
Specialised Insulation Products
Acoustic Insulation
Products like Knauf Acoustic Roll are designed to reduce sound transmission, making them ideal for use in walls and floors where sound insulation is a priority.
Thermal Bridging Boards
Celotex TB4000 is specifically designed to address thermal bridging, improving the energy efficiency of buildings by reducing heat loss at junctions and edges.
Aerogel Insulation
Spacetherm products, with their aerogel composition, offer superior thermal performance in a thinner profile, ideal for space-constrained applications.
Natural and Eco-Friendly Options
Sheepwool Insulation
100% Sheepwool Insulation rolls are an eco-friendly option, providing natural thermal and acoustic insulation. These are suitable for those looking for sustainable building materials.
Accessory Products
Foil Tape and Vapour Barriers
Foil tapes like SuperFOIL and Tyvek products are essential for sealing seams in foil-faced insulation to maintain continuity and performance. Vapour barriers help in controlling moisture ingress, enhancing the overall effectiveness of insulation.
Cavity Barriers and Firestops
Products like Timber Cavity Barrier and Party Wall Cavity Stop Socks are crucial for fire safety, preventing the spread of fire within cavity spaces.
Applications of Insulation
Insulation products are widely used across a variety of building projects, including:
- Residential new builds and refurbishments
- Loft and attic insulation upgrades
- Internal wall insulation systems
- Floor insulation for improved thermal comfort
- Garage and outbuilding insulation
Whether you're working on a home renovation or a new development, these materials provide a practical and efficient insulation solution.
Selecting the Right Insulation
When choosing insulation, consider the following:
- Application Area: Roof, wall, or floor insulation has different requirements.
- Thermal Performance: Higher R-values mean better insulation.
- Acoustic Needs: If soundproofing is a concern, opt for specialised acoustic insulation.
- Environmental Impact: Consider eco-friendly options like sheepwool for a lower environmental footprint.
- Building Regulations: Ensure the product meets local building codes and regulations.
In conclusion, the right insulation product can significantly enhance the comfort, energy efficiency, and safety of a building. Build4Less offers a range of products to meet diverse insulation needs, ensuring quality and performance.
Why Choose Build4Less for Insulation?
- Competitive prices on trusted insulation products
- Wide range of options for all project sizes
- Fast UK delivery to keep your project on schedule
- Expert support to help you choose the right materials
At Build4Less, we combine affordability with quality, ensuring you get the best insulation solutions for your budget and build.
To get the most out of your insulation project, consider pairing Insulation with complementary materials:
- Improve internal finishes with Standard Plasterboard, ideal for creating smooth walls and ceilings after insulation installation.
- Enhance thermal efficiency further using Insulated Plasterboard, combining insulation and finishing in one solution.
- For higher-performance projects, explore our range of Celotex Insulation Boards, offering excellent thermal resistance for walls, floors, and roofs.
These related products help you achieve a complete, efficient, and professional finish.
Frequently Asked Questions for Insulation
What is Insulation best used for?
Insulation is ideal for general-purpose insulation in lofts, walls, and floors where cost-effective thermal performance is required.
Is Insulation suitable for DIY projects?
Absolutely. Many products are easy to handle and install, making them suitable for both professionals and DIY users.
How does Insulation compare to premium insulation?
While premium insulation offers higher thermal performance and thinner profiles, Insulation provides a more budget-friendly option for standard applications.
Can Insulation help reduce energy bills?
Yes, by reducing heat loss, it improves energy efficiency and can significantly lower heating costs over time.
Rated Excellent



