Building Materials
Whatever the project, MyDIY has you covered with a wide range of general building materials for both trade professionals and DIY enthusiasts. From essential cement, sand, and aggregates to bricks, blocks, plasterboard, and timber, we supply everything you need to get the job done right.
Our range includes trusted brands and high-quality materials for foundations, walls, roofing, insulation, and drainage, ensuring strength and reliability in every build. With competitive prices compared across leading UK merchants, you can source the right products quickly and cost-effectively. Whether you’re tackling small DIY repairs or managing a larger construction project, MyDIY makes it simple to find and order the building supplies you need online.
Brand: British Gypsum
Gyproc WallBoard DUPLEX, backed with a vapour controlled membrane, is a high-quality and durable product. This wallboard features an aerated Gypsum centre, secured by bonded paper liners and polyester film.
With an Ivory-faced paper and metallised polyester film reverse, it can be used for wall a..
£14.24
Ex Tax:£11.87
Celotex PL4040 Insulation Plasterboard offers a completely unique thermal insulation board bonded with a 12.5mm Plasterboard aimed at reducing overall installation time. Ideal for pitched roofs, flat roofs and walls this product offers both direct bonding (dot and dab) and mechanically fixed install..
£50.95
Ex Tax:£42.46
Reduce the setting time of all types of finishing plaster by up to 60 minutes.
Ideal for reducing waiting time on smaller walls and patching jobs.Simply mix with gauging water, then add finishing plaster as normal1 sachet for every 5.5 Litres of water (approx. 12.5Kg of plaster)MANUFACTURED AND TES..
£2.15
Ex Tax:£1.79
Cavity liner for use with air bricks to form a duct through walls to assist ventilation.
Free air space 4624mm2Suitable for new build and refurbishment projectsBuff colour resistant to fadingResistant to frost and the freeze/thaw cycle
£9.79
Ex Tax:£8.16
Water repellent, self coloured render, hand applied to provide a scraped texture finish.
For use both as a one coat render or as part of a two coat systemHand appliedOne coat directly on to block workTwo coat in conjunction with a K Rend Base CoatExcellent handling propertiesIncorporates silicone t..
£23.63
Ex Tax:£19.69
Limelite Renovating Plaster is a Pre-blended and dry-bagged lightweight, cementitious plaster which has been developed to control dampness passing through traditionally constructed plaster. It can also be applied shortly after insertion of a new damp-proof course or system.
Lightweight cementitious..
£43.14
Ex Tax:£35.95
This plastering sand can be used for a variety of internal and external purposes. As well as plastering, it is also used for rendering of walls and brickwork. A mix of soft and sharp sand of consistent colour and quality. Makes bricklaying mortar when mixed with cement and water.
Min..
£53.35
Ex Tax:£44.46
ROCKWOOL Thermal Insulation Roll is an ideal solution for quick and easy installation into loft spaces.
Euroclass A1 non-combustible - withstands temperatures of over 1,000°C.Long lasting, reliable thermal performance.Quick and easy to installCE marked - for quality assurance.The mineral wool insul..
£135.38
Ex Tax:£112.82
Industry standard joist hanger for supporting timber joists, beams and rafters from masonry walls
100 mm
£1.74
Ex Tax:£1.45
Screw in Starter Ties are supplied with an 8mm nylon plug and is suitable for use in brickwork and blockwork of up to 3 storeys or 8 metres in height.
Ideal for the construction of conservatories, extensions and garden wallsSupplied in bags of 10. Also available singularlyMeets the technical requir..
£7.10
Ex Tax:£5.92
Wavin OsmaSoil is a PVC-U Soil system for sanitary waste removal. A comprehensive system available in a variety of colours and sizes with either push-fit or solvent weld joints.
With one push-fit ring-seal socket and one plain endRing-seal socket incorporates captive seal technologySeals cannot dis..
£13.43
Ex Tax:£11.19
Celotex GA4000 is an easy to install polyisocyanurate
(PIR) insulation board with excellent thermal performance,
featuring a low emissivity foil facing. Available in thicknesses
from 50mm to 100mm, it can be considered for roof, wall
and floor applications.
Excellent thermal performance with a ..
£27.41
Ex Tax:£22.84