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    Building Chemicals

    Our range of Building Chemicals helps you complete construction, repair and finishing work to a higher standard. From bonding and sealing to cleaning, protection and preparation, building chemicals are essential for improving performance, durability and efficiency across a wide variety of projects. Whether you’re working on-site or tackling home improvements, using the right chemical products can speed up jobs, improve results and reduce future maintenance.

    Building chemicals are commonly used for tasks such as sealing joints, improving adhesion, filling gaps, waterproofing, cleaning surfaces and protecting materials. They’re ideal for everything from brickwork and blockwork to timber, flooring and external works, helping you achieve cleaner finishes and stronger, longer-lasting installations. With options suitable for trade professionals and DIY users, you can find practical solutions for everyday building challenges.

    For best results, choose products that match the surface and conditions you’re working with, and follow application guidance carefully—especially for drying times, coverage and safety use. Having the right building chemicals on hand also helps reduce downtime, making it easier to keep projects moving.

    Shop online today for building chemicals with delivery and collection available.

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    Picture of BOSTIK CEMENTONE BRICK & PATIO CLEANER   5 litre

    BOSTIK CEMENTONE BRICK & PATIO CLEANER 5 litre

    Bostik Cementone BRICK & PATIO CLEANER 5 litre brick and patio cleaner for removing cement residue and stains.
    £13.93 INC VAT
    Picture of BOSTIK CEMENTONE CEMPLAS MORTAR PLASTICISER   5 litre

    BOSTIK CEMENTONE CEMPLAS MORTAR PLASTICISER 5 litre

    Bostik Cementone CEMPLAS MORTAR PLASTICISER 5 litre mortar plasticiser for improving bricklaying mortar workability.
    £5.48 INC VAT
    Picture of Bostik Cementone CEMPLAS MORTAR PLASTICISER 25 litre

    Bostik Cementone CEMPLAS MORTAR PLASTICISER 25 litre

    Bostik Cementone CEMPLAS MORTAR PLASTICISER 25 litre mortar plasticiser for improving bricklaying mortar workability.
    £30.08 INC VAT
    Picture of BOSTIK CEMENTONE CONCENTRATED VINSOL RESIN MORTAR PLASTICISER  1 litre

    BOSTIK CEMENTONE CONCENTRATED VINSOL RESIN MORTAR PLASTICISER 1 litre

    Bostik Cementone CONCENTRATED VINSOL RESIN MORTAR PLASTICISER 1 litre mortar plasticiser for improving bricklaying mortar workability.
    £12.69 INC VAT
    Picture of Bostik Cementone CONCRETE MOULD RELEASE OIL 5 litre

    Bostik Cementone CONCRETE MOULD RELEASE OIL 5 litre

    Bostik Cementone CONCRETE MOULD RELEASE OIL 5 litre mould release oil for shuttering, formwork and concrete casting.
    £18.36 INC VAT
    Picture of Bostik Cementone EXTERIOR WATERSEAL 5 litre

    Bostik Cementone EXTERIOR WATERSEAL 5 litre

    Bostik Cementone EXTERIOR WATERSEAL 5 litre exterior masonry waterseal for brick, render and stone.
    £45.50 INC VAT
    Picture of BOSTIK CEMENTONE INTEGRAL WATERPROOFING LIQUID  5 litre

    BOSTIK CEMENTONE INTEGRAL WATERPROOFING LIQUID 5 litre

    Bostik Cementone INTEGRAL WATERPROOFING LIQUID 5 litre integral waterproofing additive for mortar and render mixes.
    £9.75 INC VAT
    Picture of BOSTIK CEMENTONE NO 1 POWDER CEMENT COLOUR Brick Red 1 kg

    BOSTIK CEMENTONE NO 1 POWDER CEMENT COLOUR Brick Red 1 kg

    Bostik Cementone NO 1 POWDER CEMENT COLOUR Brick Red 1 kg cement pigment for colouring mortar, render and concrete.
    £10.99 INC VAT
    Picture of BOSTIK CEMENTONE NO 1 POWDER CEMENT COLOUR Buff 1 kg

    BOSTIK CEMENTONE NO 1 POWDER CEMENT COLOUR Buff 1 kg

    Bostik Cementone NO 1 POWDER CEMENT COLOUR Buff 1 kg cement pigment for colouring mortar, render and concrete.
    £10.99 INC VAT
    Picture of BOSTIK CEMENTONE RENDABOND PVA ADHESIVE & SEALER 5 to 1 dilution rate 1 litre

    BOSTIK CEMENTONE RENDABOND PVA ADHESIVE & SEALER 5 to 1 dilution rate 1 litre

    Bostik Cementone RENDABOND PVA ADHESIVE & SEALER 5 to 1 dilution rate 1 litre PVA bonding agent and sealer for plastering and surface preparation.
    £6.37 INC VAT
    Picture of BOSTIK CEMENTONE RENDABOND PVA ADHESIVE & SEALER 5 to 1 dilution rate 5 litre

    BOSTIK CEMENTONE RENDABOND PVA ADHESIVE & SEALER 5 to 1 dilution rate 5 litre

    BOSTIK CEMENTONE RENDABOND PVA ADHESIVE & SEALER 5 to 1 dilution rate 5 litre is a multi‑purpose PVA adhesive and sealer designed to improve adhesion and seal porous building surfaces.
    £16.18 INC VAT
    Picture of BOSTIK CEMENTONE SBR WATERPROOFING & STRENGTHENING ADMIXTURE  5 litre

    BOSTIK CEMENTONE SBR WATERPROOFING & STRENGTHENING ADMIXTURE 5 litre

    Bostik Cementone SBR WATERPROOFING & STRENGTHENING ADMIXTURE 5 litre SBR bonding and waterproofing admixture for screeds, renders and repairs.
    £29.61 INC VAT
    Picture of Bostik Cementone WINTAPLAS CHLORIDE FREE FROSTPROOFER & PLASTICISER 5 litre

    Bostik Cementone WINTAPLAS CHLORIDE FREE FROSTPROOFER & PLASTICISER 5 litre

    Bostik Cementone WINTAPLAS CHLORIDE FREE FROSTPROOFER & PLASTICISER 5 litre chloride-free frostproofer and plasticiser for cold weather mortar.
    £11.71 INC VAT
    Picture of BOSTIK CEMPOLATEX 1 PACK LATEX FLOOR LEVELLER  20 kg

    BOSTIK CEMPOLATEX 1 PACK LATEX FLOOR LEVELLER 20 kg

    Bostik CEMPOLATEX 1 PACK LATEX FLOOR LEVELLER 20 kg self levelling compound for smoothing subfloors before floor coverings.
    £26.04 INC VAT
    Picture of BOSTIK CEMPOLAY  FLOOR LEVELLER   20 kg

    BOSTIK CEMPOLAY FLOOR LEVELLER 20 kg

    Bostik CEMPOLAY FLOOR LEVELLER 20 kg self levelling compound for smoothing subfloors before floor coverings.
    £21.26 INC VAT
    Picture of BOSTIK CEMPOLAY FLEXI DEEP FLOOR LEVELLER (3 - 60MM) 20 kg

    BOSTIK CEMPOLAY FLEXI DEEP FLOOR LEVELLER (3 - 60MM) 20 kg

    BOSTIK CEMPOLAY FLEXI DEEP FLOOR LEVELLER (3 - 60MM) 20 kg is a flexible floor levelling compound designed to smooth uneven subfloors prior to installing floor finishes.
    £37.17 INC VAT
    Picture of Bostik MC250 VITRI-FLEX RAPID SET FLEXIBLE WALL & FLOOR TILE ADHESIVE (C2FT S1) grey 20kg

    Bostik MC250 VITRI-FLEX RAPID SET FLEXIBLE WALL & FLOOR TILE ADHESIVE (C2FT S1) grey 20kg

    Bostik MC250 VITRI-FLEX RAPID SET FLEXIBLE WALL & FLOOR TILE ADHESIVE (C2FT S1) grey 20kg tile adhesive for fixing wall and floor tiles.
    £32.11 INC VAT
    Picture of BOSTIK PROFESSIONAL J115 SMOOTH FINISH FLEXIBLE GROUT - WALL & FLOOR Grey 5kg  (CG2WA)

    BOSTIK PROFESSIONAL J115 SMOOTH FINISH FLEXIBLE GROUT - WALL & FLOOR Grey 5kg (CG2WA)

    Bostik PROFESSIONAL J115 SMOOTH FINISH FLEXIBLE GROUT - WALL & FLOOR Grey 5kg (CG2WA) flexible tile grout for wall and floor tile joints.
    £17.69 INC VAT
    Picture of Bostik PROFESSIONAL J115 SMOOTH FINISH FLEXIBLE GROUT - WALL & FLOOR White 5kg (CG2WA)

    Bostik PROFESSIONAL J115 SMOOTH FINISH FLEXIBLE GROUT - WALL & FLOOR White 5kg (CG2WA)

    Bostik PROFESSIONAL J115 SMOOTH FINISH FLEXIBLE GROUT - WALL & FLOOR White 5kg (CG2WA) flexible tile grout for wall and floor tile joints.
    £17.69 INC VAT
    Picture of CEMENTONE PLASTERER'S PRIMER ( PLASPRIME TECHNOLOGY ) Green 10ltr

    CEMENTONE PLASTERER'S PRIMER ( PLASPRIME TECHNOLOGY ) Green 10ltr

    Cementone PLASTERER'S PRIMER ( PLASPRIME TECHNOLOGY ) Green 10ltr plasterer’s primer for preparing low suction surfaces before skimming.
    £63.86 INC VAT