Repair Mastic & Waterproofing

Roof repair mastic is designed to heal cracks and splits in flat roofs. Waterproofing mastic is especially useful when fixing flat roofing issues, as this type of mastic creates watertight repairs. This makes it perfect for emergency situations and remedial work. 

At Drainage Superstore, we stock waterproof mastic from leading brands, including Cromar and Black Jack by Everbuild. Black Jack’s 903 Bitumen Trowel Mastic is competitively priced and is ideal for waterproofing, bonding, and sealing. It adheres to most construction materials, including roofing felt, cast iron, fibre cement, and slate. Alongside our mastic waterproofing options, we also stock roofing and guttering waterproofing compounds, as well as all-weather compounds and roof coating. If you’re unsure which is the best option for your project, give our friendly team a call at 01752 692 221.

Installing new drainage systems on your flat roof? Don't forget these to complete your project: 

Need help with your next flat roofing project? Check out our handy guides below: 

Showing 1 - 6 of 6 products in Repair Mastic & Waterproofing

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Products in Repair Mastic & Waterproofing:

Showing 1 - 6 of 6 products

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SKU

90525

£71.99 Incl. VAT
£0.00 Incl. VAT
SKU

CRO0022

£69.31 Incl. VAT
£0.00 Incl. VAT
SKU

90505

£19.99 Incl. VAT
£0.00 Incl. VAT
SKU

CRO0015

£65.51 Incl. VAT
£0.00 Incl. VAT
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CRO0021

£92.54 Incl. VAT
£0.00 Incl. VAT
SKU

CRO0027

£55.80 Incl. VAT
£0.00 Incl. VAT

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